1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -passes=instcombine -S | FileCheck %s
4 declare <2 x half> @llvm.fabs.v2f16(<2 x half>)
5 declare <2 x float> @llvm.fabs.v2f32(<2 x float>)
6 declare <4 x float> @llvm.fabs.v4f32(<4 x float>)
7 declare <2 x double> @llvm.fabs.v2f64(<2 x double>)
8 declare <4 x double> @llvm.fabs.v4f64(<4 x double>)
10 define <4 x float> @test1(<4 x float> %v1) {
11 ; CHECK-LABEL: @test1(
12 ; CHECK-NEXT: ret <4 x float> [[V1:%.*]]
14 %v2 = shufflevector <4 x float> %v1, <4 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
18 define <4 x float> @test2(<4 x float> %v1) {
19 ; CHECK-LABEL: @test2(
20 ; CHECK-NEXT: ret <4 x float> [[V1:%.*]]
22 %v2 = shufflevector <4 x float> %v1, <4 x float> %v1, <4 x i32> <i32 0, i32 5, i32 2, i32 7>
26 define float @test3(<4 x float> %A, <4 x float> %B, float %f) {
27 ; CHECK-LABEL: @test3(
28 ; CHECK-NEXT: ret float [[F:%.*]]
30 %C = insertelement <4 x float> %A, float %f, i32 0
31 %D = shufflevector <4 x float> %C, <4 x float> %B, <4 x i32> <i32 5, i32 0, i32 2, i32 7>
32 %E = extractelement <4 x float> %D, i32 1
36 define i32 @test4(<4 x i32> %X) {
37 ; CHECK-LABEL: @test4(
38 ; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i32> [[X:%.*]], i64 0
39 ; CHECK-NEXT: ret i32 [[R]]
41 %t = shufflevector <4 x i32> %X, <4 x i32> undef, <4 x i32> zeroinitializer
42 %r = extractelement <4 x i32> %t, i32 0
46 define i32 @test5(<4 x i32> %X) {
47 ; CHECK-LABEL: @test5(
48 ; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i32> [[X:%.*]], i64 3
49 ; CHECK-NEXT: ret i32 [[R]]
51 %t = shufflevector <4 x i32> %X, <4 x i32> undef, <4 x i32> <i32 3, i32 2, i32 undef, i32 undef>
52 %r = extractelement <4 x i32> %t, i32 0
56 define float @test6(<4 x float> %X) {
57 ; CHECK-LABEL: @test6(
58 ; CHECK-NEXT: [[R:%.*]] = extractelement <4 x float> [[X:%.*]], i64 0
59 ; CHECK-NEXT: ret float [[R]]
61 %X1 = bitcast <4 x float> %X to <4 x i32>
62 %t = shufflevector <4 x i32> %X1, <4 x i32> undef, <4 x i32> zeroinitializer
63 %t2 = bitcast <4 x i32> %t to <4 x float>
64 %r = extractelement <4 x float> %t2, i32 0
68 define float @testvscale6(<vscale x 4 x float> %X) {
69 ; CHECK-LABEL: @testvscale6(
70 ; CHECK-NEXT: [[T2:%.*]] = shufflevector <vscale x 4 x float> [[X:%.*]], <vscale x 4 x float> poison, <vscale x 4 x i32> zeroinitializer
71 ; CHECK-NEXT: [[R:%.*]] = extractelement <vscale x 4 x float> [[T2]], i64 0
72 ; CHECK-NEXT: ret float [[R]]
74 %X1 = bitcast <vscale x 4 x float> %X to <vscale x 4 x i32>
75 %t = shufflevector <vscale x 4 x i32> %X1, <vscale x 4 x i32> undef, <vscale x 4 x i32> zeroinitializer
76 %t2 = bitcast <vscale x 4 x i32> %t to <vscale x 4 x float>
77 %r = extractelement <vscale x 4 x float> %t2, i32 0
82 define <4 x float> @test7(<4 x float> %x) {
83 ; CHECK-LABEL: @test7(
84 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x float> [[X:%.*]], <4 x float> <float poison, float poison, float undef, float undef>, <4 x i32> <i32 0, i32 1, i32 6, i32 7>
85 ; CHECK-NEXT: ret <4 x float> [[R]]
87 %r = shufflevector <4 x float> %x, <4 x float> undef, <4 x i32> < i32 0, i32 1, i32 6, i32 7 >
91 ; This should not turn into a single shuffle.
92 define <4 x float> @test8(<4 x float> %x, <4 x float> %y) {
93 ; CHECK-LABEL: @test8(
94 ; CHECK-NEXT: [[T132:%.*]] = shufflevector <4 x float> [[X:%.*]], <4 x float> <float poison, float undef, float poison, float poison>, <4 x i32> <i32 1, i32 5, i32 3, i32 poison>
95 ; CHECK-NEXT: [[T134:%.*]] = shufflevector <4 x float> [[T132]], <4 x float> [[Y:%.*]], <4 x i32> <i32 0, i32 1, i32 2, i32 4>
96 ; CHECK-NEXT: ret <4 x float> [[T134]]
98 %t4 = extractelement <4 x float> %x, i32 1
99 %t2 = extractelement <4 x float> %x, i32 3
100 %t1 = extractelement <4 x float> %y, i32 0
101 %t128 = insertelement <4 x float> undef, float %t4, i32 0
102 %t130 = insertelement <4 x float> %t128, float undef, i32 1
103 %t132 = insertelement <4 x float> %t130, float %t2, i32 2
104 %t134 = insertelement <4 x float> %t132, float %t1, i32 3
105 ret <4 x float> %t134
108 ; Test fold of two shuffles where the first shuffle vectors inputs are a
109 ; different length then the second.
110 define <4 x i8> @test9(<16 x i8> %t6) {
111 ; CHECK-LABEL: @test9(
112 ; CHECK-NEXT: [[T9:%.*]] = shufflevector <16 x i8> [[T6:%.*]], <16 x i8> poison, <4 x i32> <i32 13, i32 9, i32 4, i32 13>
113 ; CHECK-NEXT: ret <4 x i8> [[T9]]
115 %t7 = shufflevector <16 x i8> %t6, <16 x i8> undef, <4 x i32> < i32 13, i32 9, i32 4, i32 13 >
116 %t9 = shufflevector <4 x i8> %t7, <4 x i8> undef, <4 x i32> < i32 3, i32 1, i32 2, i32 0 >
120 ; Same as test9, but make sure that "undef" mask values are not confused with
121 ; mask values of 2*N, where N is the mask length. These shuffles should not
122 ; be folded (because [8,9,4,8] may not be a mask supported by the target).
124 define <4 x i8> @test9a(<16 x i8> %t6) {
125 ; CHECK-LABEL: @test9a(
126 ; CHECK-NEXT: [[T7:%.*]] = shufflevector <16 x i8> [[T6:%.*]], <16 x i8> poison, <4 x i32> <i32 poison, i32 9, i32 4, i32 8>
127 ; CHECK-NEXT: [[T9:%.*]] = shufflevector <4 x i8> [[T7]], <4 x i8> poison, <4 x i32> <i32 3, i32 1, i32 2, i32 poison>
128 ; CHECK-NEXT: ret <4 x i8> [[T9]]
130 %t7 = shufflevector <16 x i8> %t6, <16 x i8> undef, <4 x i32> < i32 undef, i32 9, i32 4, i32 8 >
131 %t9 = shufflevector <4 x i8> %t7, <4 x i8> undef, <4 x i32> < i32 3, i32 1, i32 2, i32 0 >
135 ; Test fold of two shuffles where the first shuffle vectors inputs are a
136 ; different length then the second.
137 define <4 x i8> @test9b(<4 x i8> %t6, <4 x i8> %t7) {
138 ; CHECK-LABEL: @test9b(
139 ; CHECK-NEXT: [[T9:%.*]] = shufflevector <4 x i8> [[T6:%.*]], <4 x i8> [[T7:%.*]], <4 x i32> <i32 0, i32 1, i32 4, i32 5>
140 ; CHECK-NEXT: ret <4 x i8> [[T9]]
142 %t1 = shufflevector <4 x i8> %t6, <4 x i8> %t7, <8 x i32> <i32 0, i32 1, i32 4, i32 5, i32 4, i32 5, i32 2, i32 3>
143 %t9 = shufflevector <8 x i8> %t1, <8 x i8> undef, <4 x i32> <i32 0, i32 1, i32 4, i32 5>
147 ; Redundant vector splats should be removed. Radar 8597790.
148 define <4 x i32> @test10(<4 x i32> %t5) {
149 ; CHECK-LABEL: @test10(
150 ; CHECK-NEXT: [[T7:%.*]] = shufflevector <4 x i32> [[T5:%.*]], <4 x i32> poison, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
151 ; CHECK-NEXT: ret <4 x i32> [[T7]]
153 %t6 = shufflevector <4 x i32> %t5, <4 x i32> undef, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
154 %t7 = shufflevector <4 x i32> %t6, <4 x i32> undef, <4 x i32> zeroinitializer
158 ; Test fold of two shuffles where the two shufflevector inputs's op1 are the same.
160 define <8 x i8> @test11(<16 x i8> %t6) {
161 ; CHECK-LABEL: @test11(
162 ; CHECK-NEXT: [[T3:%.*]] = shufflevector <16 x i8> [[T6:%.*]], <16 x i8> poison, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
163 ; CHECK-NEXT: ret <8 x i8> [[T3]]
165 %t1 = shufflevector <16 x i8> %t6, <16 x i8> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
166 %t2 = shufflevector <16 x i8> %t6, <16 x i8> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
167 %t3 = shufflevector <4 x i8> %t1, <4 x i8> %t2, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
171 ; Test fold of two shuffles where the first shufflevector's inputs are the same as the second.
173 define <8 x i8> @test12(<8 x i8> %t6, <8 x i8> %t2) {
174 ; CHECK-LABEL: @test12(
175 ; CHECK-NEXT: [[T3:%.*]] = shufflevector <8 x i8> [[T6:%.*]], <8 x i8> [[T2:%.*]], <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 9, i32 8, i32 11, i32 12>
176 ; CHECK-NEXT: ret <8 x i8> [[T3]]
178 %t1 = shufflevector <8 x i8> %t6, <8 x i8> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 5, i32 4, i32 undef, i32 7>
179 %t3 = shufflevector <8 x i8> %t1, <8 x i8> %t2, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 9, i32 8, i32 11, i32 12>
183 ; Test fold of two shuffles where the first shufflevector's inputs are the same as the second.
185 define <8 x i8> @test12a(<8 x i8> %t6, <8 x i8> %t2) {
186 ; CHECK-LABEL: @test12a(
187 ; CHECK-NEXT: [[T3:%.*]] = shufflevector <8 x i8> [[T2:%.*]], <8 x i8> [[T6:%.*]], <8 x i32> <i32 0, i32 3, i32 1, i32 4, i32 8, i32 9, i32 10, i32 11>
188 ; CHECK-NEXT: ret <8 x i8> [[T3]]
190 %t1 = shufflevector <8 x i8> %t6, <8 x i8> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 5, i32 4, i32 undef, i32 7>
191 %t3 = shufflevector <8 x i8> %t2, <8 x i8> %t1, <8 x i32> <i32 0, i32 3, i32 1, i32 4, i32 8, i32 9, i32 10, i32 11>
195 ; The mask length of the 1st shuffle can be reduced to eliminate the 2nd shuffle.
197 define <2 x i8> @extract_subvector_of_shuffle(<2 x i8> %x, <2 x i8> %y) {
198 ; CHECK-LABEL: @extract_subvector_of_shuffle(
199 ; CHECK-NEXT: [[EXTRACT_SUBV:%.*]] = shufflevector <2 x i8> [[X:%.*]], <2 x i8> [[Y:%.*]], <2 x i32> <i32 0, i32 2>
200 ; CHECK-NEXT: ret <2 x i8> [[EXTRACT_SUBV]]
202 %shuf = shufflevector <2 x i8> %x, <2 x i8> %y, <3 x i32> <i32 0, i32 2, i32 0>
203 %extract_subv = shufflevector <3 x i8> %shuf, <3 x i8> undef, <2 x i32> <i32 0, i32 1>
204 ret <2 x i8> %extract_subv
207 ; Undef elements in either mask are ok. Undefs from the 2nd shuffle mask should propagate to the new shuffle.
208 ; The type of the inputs does not have to match the output type.
210 define <4 x i8> @extract_subvector_of_shuffle_undefs_types(<2 x i8> %x, <2 x i8> %y) {
211 ; CHECK-LABEL: @extract_subvector_of_shuffle_undefs_types(
212 ; CHECK-NEXT: [[EXTRACT_SUBV:%.*]] = shufflevector <2 x i8> [[X:%.*]], <2 x i8> [[Y:%.*]], <4 x i32> <i32 poison, i32 2, i32 0, i32 poison>
213 ; CHECK-NEXT: ret <4 x i8> [[EXTRACT_SUBV]]
215 %shuf = shufflevector <2 x i8> %x, <2 x i8> %y, <5 x i32> <i32 undef, i32 2, i32 0, i32 1, i32 0>
216 %extract_subv = shufflevector <5 x i8> %shuf, <5 x i8> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 undef>
217 ret <4 x i8> %extract_subv
220 ; Extra uses are not ok - we only do the transform when we can eliminate an instruction.
222 declare void @use_v5i8(<5 x i8>)
224 define <4 x i8> @extract_subvector_of_shuffle_extra_use(<2 x i8> %x, <2 x i8> %y) {
225 ; CHECK-LABEL: @extract_subvector_of_shuffle_extra_use(
226 ; CHECK-NEXT: [[SHUF:%.*]] = shufflevector <2 x i8> [[X:%.*]], <2 x i8> [[Y:%.*]], <5 x i32> <i32 poison, i32 2, i32 0, i32 1, i32 0>
227 ; CHECK-NEXT: call void @use_v5i8(<5 x i8> [[SHUF]])
228 ; CHECK-NEXT: [[EXTRACT_SUBV:%.*]] = shufflevector <5 x i8> [[SHUF]], <5 x i8> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 poison>
229 ; CHECK-NEXT: ret <4 x i8> [[EXTRACT_SUBV]]
231 %shuf = shufflevector <2 x i8> %x, <2 x i8> %y, <5 x i32> <i32 undef, i32 2, i32 0, i32 1, i32 0>
232 call void @use_v5i8(<5 x i8> %shuf)
233 %extract_subv = shufflevector <5 x i8> %shuf, <5 x i8> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 undef>
234 ret <4 x i8> %extract_subv
237 define <2 x i8> @test13a(i8 %x1, i8 %x2) {
238 ; CHECK-LABEL: @test13a(
239 ; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x i8> poison, i8 [[X2:%.*]], i64 0
240 ; CHECK-NEXT: [[TMP2:%.*]] = insertelement <2 x i8> [[TMP1]], i8 [[X1:%.*]], i64 1
241 ; CHECK-NEXT: [[D:%.*]] = add <2 x i8> [[TMP2]], <i8 7, i8 5>
242 ; CHECK-NEXT: ret <2 x i8> [[D]]
244 %A = insertelement <2 x i8> undef, i8 %x1, i32 0
245 %B = insertelement <2 x i8> %A, i8 %x2, i32 1
246 %C = add <2 x i8> %B, <i8 5, i8 7>
247 %D = shufflevector <2 x i8> %C, <2 x i8> undef, <2 x i32> <i32 1, i32 0>
251 ; Increasing length of vector ops is not a good canonicalization.
253 define <3 x i32> @add_wider(i32 %y, i32 %z) {
254 ; CHECK-LABEL: @add_wider(
255 ; CHECK-NEXT: [[I0:%.*]] = insertelement <2 x i32> poison, i32 [[Y:%.*]], i64 0
256 ; CHECK-NEXT: [[I1:%.*]] = insertelement <2 x i32> [[I0]], i32 [[Z:%.*]], i64 1
257 ; CHECK-NEXT: [[A:%.*]] = add <2 x i32> [[I1]], splat (i32 255)
258 ; CHECK-NEXT: [[EXT:%.*]] = shufflevector <2 x i32> [[A]], <2 x i32> poison, <3 x i32> <i32 0, i32 1, i32 poison>
259 ; CHECK-NEXT: ret <3 x i32> [[EXT]]
261 %i0 = insertelement <2 x i32> undef, i32 %y, i32 0
262 %i1 = insertelement <2 x i32> %i0, i32 %z, i32 1
263 %a = add <2 x i32> %i1, <i32 255, i32 255>
264 %ext = shufflevector <2 x i32> %a, <2 x i32> undef, <3 x i32> <i32 0, i32 1, i32 undef>
268 ; Increasing length of vector ops must be safe from illegal undef propagation.
270 define <3 x i32> @div_wider(i32 %y, i32 %z) {
271 ; CHECK-LABEL: @div_wider(
272 ; CHECK-NEXT: [[I0:%.*]] = insertelement <2 x i32> poison, i32 [[Y:%.*]], i64 0
273 ; CHECK-NEXT: [[I1:%.*]] = insertelement <2 x i32> [[I0]], i32 [[Z:%.*]], i64 1
274 ; CHECK-NEXT: [[A:%.*]] = sdiv <2 x i32> [[I1]], splat (i32 255)
275 ; CHECK-NEXT: [[EXT:%.*]] = shufflevector <2 x i32> [[A]], <2 x i32> poison, <3 x i32> <i32 0, i32 1, i32 poison>
276 ; CHECK-NEXT: ret <3 x i32> [[EXT]]
278 %i0 = insertelement <2 x i32> undef, i32 %y, i32 0
279 %i1 = insertelement <2 x i32> %i0, i32 %z, i32 1
280 %a = sdiv <2 x i32> %i1, <i32 255, i32 255>
281 %ext = shufflevector <2 x i32> %a, <2 x i32> undef, <3 x i32> <i32 0, i32 1, i32 undef>
285 ; Increasing length of insertelements (no math ops) is a good canonicalization.
287 define <3 x i8> @fold_inselts_with_widening_shuffle(i8 %x, i8 %y) {
288 ; CHECK-LABEL: @fold_inselts_with_widening_shuffle(
289 ; CHECK-NEXT: [[TMP1:%.*]] = insertelement <3 x i8> poison, i8 [[X:%.*]], i64 0
290 ; CHECK-NEXT: [[WIDEN:%.*]] = insertelement <3 x i8> [[TMP1]], i8 [[Y:%.*]], i64 1
291 ; CHECK-NEXT: ret <3 x i8> [[WIDEN]]
293 %ins0 = insertelement <2 x i8> undef, i8 %x, i32 0
294 %ins1 = insertelement <2 x i8> %ins0, i8 %y, i32 1
295 %widen = shufflevector <2 x i8> %ins1, <2 x i8> undef, <3 x i32> <i32 0, i32 1, i32 undef>
299 define <2 x i8> @test13b(i8 %x) {
300 ; CHECK-LABEL: @test13b(
301 ; CHECK-NEXT: [[B:%.*]] = insertelement <2 x i8> poison, i8 [[X:%.*]], i64 1
302 ; CHECK-NEXT: ret <2 x i8> [[B]]
304 %A = insertelement <2 x i8> undef, i8 %x, i32 0
305 %B = shufflevector <2 x i8> %A, <2 x i8> undef, <2 x i32> <i32 undef, i32 0>
309 define <2 x i8> @test13c(i8 %x1, i8 %x2) {
310 ; CHECK-LABEL: @test13c(
311 ; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x i8> poison, i8 [[X1:%.*]], i64 0
312 ; CHECK-NEXT: [[C:%.*]] = insertelement <2 x i8> [[TMP1]], i8 [[X2:%.*]], i64 1
313 ; CHECK-NEXT: ret <2 x i8> [[C]]
315 %A = insertelement <4 x i8> undef, i8 %x1, i32 0
316 %B = insertelement <4 x i8> %A, i8 %x2, i32 2
317 %C = shufflevector <4 x i8> %B, <4 x i8> undef, <2 x i32> <i32 0, i32 2>
321 define void @test14(i16 %conv10) {
322 ; CHECK-LABEL: @test14(
323 ; CHECK-NEXT: store <4 x i16> <i16 undef, i16 undef, i16 undef, i16 23>, ptr undef, align 8
324 ; CHECK-NEXT: ret void
326 %t = alloca <4 x i16>, align 8
327 %vecinit6 = insertelement <4 x i16> undef, i16 23, i32 3
328 store <4 x i16> %vecinit6, ptr undef
329 %t1 = load <4 x i16>, ptr undef
330 %vecinit11 = insertelement <4 x i16> undef, i16 %conv10, i32 3
331 %div = udiv <4 x i16> %t1, %vecinit11
332 store <4 x i16> %div, ptr %t
333 %t4 = load <4 x i16>, ptr %t
334 %t5 = shufflevector <4 x i16> %t4, <4 x i16> undef, <2 x i32> <i32 2, i32 0>
335 %cmp = icmp ule <2 x i16> %t5, undef
336 %sext = sext <2 x i1> %cmp to <2 x i16>
340 ; Check that sequences of insert/extract element are
341 ; collapsed into valid shuffle instruction with correct shuffle indexes.
343 define <4 x float> @test15a(<4 x float> %LHS, <4 x float> %RHS) {
344 ; CHECK-LABEL: @test15a(
345 ; CHECK-NEXT: [[T4:%.*]] = shufflevector <4 x float> [[LHS:%.*]], <4 x float> [[RHS:%.*]], <4 x i32> <i32 4, i32 0, i32 6, i32 6>
346 ; CHECK-NEXT: ret <4 x float> [[T4]]
348 %t1 = extractelement <4 x float> %LHS, i32 0
349 %t2 = insertelement <4 x float> %RHS, float %t1, i32 1
350 %t3 = extractelement <4 x float> %RHS, i32 2
351 %t4 = insertelement <4 x float> %t2, float %t3, i32 3
355 define <4 x float> @test15b(<4 x float> %LHS, <4 x float> %RHS) {
356 ; CHECK-LABEL: @test15b(
357 ; CHECK-NEXT: [[T5:%.*]] = shufflevector <4 x float> [[LHS:%.*]], <4 x float> [[RHS:%.*]], <4 x i32> <i32 4, i32 3, i32 6, i32 6>
358 ; CHECK-NEXT: ret <4 x float> [[T5]]
360 %t0 = extractelement <4 x float> %LHS, i32 3
361 %t1 = insertelement <4 x float> %RHS, float %t0, i32 0
362 %t2 = extractelement <4 x float> %t1, i32 0
363 %t3 = insertelement <4 x float> %RHS, float %t2, i32 1
364 %t4 = extractelement <4 x float> %RHS, i32 2
365 %t5 = insertelement <4 x float> %t3, float %t4, i32 3
369 define <1 x i32> @test16a(i32 %ele) {
370 ; CHECK-LABEL: @test16a(
371 ; CHECK-NEXT: ret <1 x i32> splat (i32 2)
373 %t0 = insertelement <2 x i32> <i32 1, i32 undef>, i32 %ele, i32 1
374 %t1 = shl <2 x i32> %t0, <i32 1, i32 1>
375 %t2 = shufflevector <2 x i32> %t1, <2 x i32> undef, <1 x i32> <i32 0>
379 define <4 x i8> @test16b(i8 %ele) {
380 ; CHECK-LABEL: @test16b(
381 ; CHECK-NEXT: ret <4 x i8> splat (i8 2)
383 %t0 = insertelement <8 x i8> <i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 undef, i8 1>, i8 %ele, i32 6
384 %t1 = shl <8 x i8> %t0, <i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1>
385 %t2 = shufflevector <8 x i8> %t1, <8 x i8> undef, <4 x i32> <i32 1, i32 2, i32 3, i32 4>
389 ; If composition of two shuffles is identity, shuffles can be removed.
390 define <4 x i32> @shuffle_17ident(<4 x i32> %v) {
391 ; CHECK-LABEL: @shuffle_17ident(
392 ; CHECK-NEXT: ret <4 x i32> [[V:%.*]]
394 %shuffle = shufflevector <4 x i32> %v, <4 x i32> zeroinitializer, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
395 %shuffle2 = shufflevector <4 x i32> %shuffle, <4 x i32> zeroinitializer, <4 x i32> <i32 3, i32 0, i32 1, i32 2>
396 ret <4 x i32> %shuffle2
399 ; swizzle can be put after operation
400 define <4 x i32> @shuffle_17and(<4 x i32> %v1, <4 x i32> %v2) {
401 ; CHECK-LABEL: @shuffle_17and(
402 ; CHECK-NEXT: [[TMP1:%.*]] = and <4 x i32> [[V1:%.*]], [[V2:%.*]]
403 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x i32> [[TMP1]], <4 x i32> poison, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
404 ; CHECK-NEXT: ret <4 x i32> [[R]]
406 %t1 = shufflevector <4 x i32> %v1, <4 x i32> zeroinitializer, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
407 %t2 = shufflevector <4 x i32> %v2, <4 x i32> zeroinitializer, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
408 %r = and <4 x i32> %t1, %t2
412 declare void @use(<2 x float>)
413 declare void @use4(<4 x float>)
415 ; One extra use is ok to transform.
417 define <2 x float> @shuffle_fadd_multiuse(<2 x float> %v1, <2 x float> %v2) {
418 ; CHECK-LABEL: @shuffle_fadd_multiuse(
419 ; CHECK-NEXT: [[T1:%.*]] = shufflevector <2 x float> [[V1:%.*]], <2 x float> poison, <2 x i32> <i32 1, i32 0>
420 ; CHECK-NEXT: [[TMP1:%.*]] = fadd <2 x float> [[V1]], [[V2:%.*]]
421 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[TMP1]], <2 x float> poison, <2 x i32> <i32 1, i32 0>
422 ; CHECK-NEXT: call void @use(<2 x float> [[T1]])
423 ; CHECK-NEXT: ret <2 x float> [[R]]
425 %t1 = shufflevector <2 x float> %v1, <2 x float> undef, <2 x i32> <i32 1, i32 0>
426 %t2 = shufflevector <2 x float> %v2, <2 x float> undef, <2 x i32> <i32 1, i32 0>
427 %r = fadd <2 x float> %t1, %t2
428 call void @use(<2 x float> %t1)
432 define <2 x float> @shuffle_fdiv_multiuse(<2 x float> %v1, <2 x float> %v2) {
433 ; CHECK-LABEL: @shuffle_fdiv_multiuse(
434 ; CHECK-NEXT: [[T2:%.*]] = shufflevector <2 x float> [[V2:%.*]], <2 x float> poison, <2 x i32> <i32 1, i32 0>
435 ; CHECK-NEXT: [[TMP1:%.*]] = fdiv <2 x float> [[V1:%.*]], [[V2]]
436 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[TMP1]], <2 x float> poison, <2 x i32> <i32 1, i32 0>
437 ; CHECK-NEXT: call void @use(<2 x float> [[T2]])
438 ; CHECK-NEXT: ret <2 x float> [[R]]
440 %t1 = shufflevector <2 x float> %v1, <2 x float> undef, <2 x i32> <i32 1, i32 0>
441 %t2 = shufflevector <2 x float> %v2, <2 x float> undef, <2 x i32> <i32 1, i32 0>
442 %r = fdiv <2 x float> %t1, %t2
443 call void @use(<2 x float> %t2)
447 ; But 2 extra uses would require an extra instruction.
449 define <2 x float> @shuffle_fsub_multiuse(<2 x float> %v1, <2 x float> %v2) {
450 ; CHECK-LABEL: @shuffle_fsub_multiuse(
451 ; CHECK-NEXT: [[T1:%.*]] = shufflevector <2 x float> [[V1:%.*]], <2 x float> poison, <2 x i32> <i32 1, i32 0>
452 ; CHECK-NEXT: [[T2:%.*]] = shufflevector <2 x float> [[V2:%.*]], <2 x float> poison, <2 x i32> <i32 1, i32 0>
453 ; CHECK-NEXT: [[R:%.*]] = fsub <2 x float> [[T1]], [[T2]]
454 ; CHECK-NEXT: call void @use(<2 x float> [[T1]])
455 ; CHECK-NEXT: call void @use(<2 x float> [[T2]])
456 ; CHECK-NEXT: ret <2 x float> [[R]]
458 %t1 = shufflevector <2 x float> %v1, <2 x float> undef, <2 x i32> <i32 1, i32 0>
459 %t2 = shufflevector <2 x float> %v2, <2 x float> undef, <2 x i32> <i32 1, i32 0>
460 %r = fsub <2 x float> %t1, %t2
461 call void @use(<2 x float> %t1)
462 call void @use(<2 x float> %t2)
466 define <4 x i32> @shuffle_17add(<4 x i32> %v1, <4 x i32> %v2) {
467 ; CHECK-LABEL: @shuffle_17add(
468 ; CHECK-NEXT: [[TMP1:%.*]] = add <4 x i32> [[V1:%.*]], [[V2:%.*]]
469 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x i32> [[TMP1]], <4 x i32> poison, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
470 ; CHECK-NEXT: ret <4 x i32> [[R]]
472 %t1 = shufflevector <4 x i32> %v1, <4 x i32> zeroinitializer, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
473 %t2 = shufflevector <4 x i32> %v2, <4 x i32> zeroinitializer, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
474 %r = add <4 x i32> %t1, %t2
478 define <4 x i32> @shuffle_17addnsw(<4 x i32> %v1, <4 x i32> %v2) {
479 ; CHECK-LABEL: @shuffle_17addnsw(
480 ; CHECK-NEXT: [[TMP1:%.*]] = add nsw <4 x i32> [[V1:%.*]], [[V2:%.*]]
481 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x i32> [[TMP1]], <4 x i32> poison, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
482 ; CHECK-NEXT: ret <4 x i32> [[R]]
484 %t1 = shufflevector <4 x i32> %v1, <4 x i32> zeroinitializer, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
485 %t2 = shufflevector <4 x i32> %v2, <4 x i32> zeroinitializer, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
486 %r = add nsw <4 x i32> %t1, %t2
490 define <4 x i32> @shuffle_17addnuw(<4 x i32> %v1, <4 x i32> %v2) {
491 ; CHECK-LABEL: @shuffle_17addnuw(
492 ; CHECK-NEXT: [[TMP1:%.*]] = add nuw <4 x i32> [[V1:%.*]], [[V2:%.*]]
493 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x i32> [[TMP1]], <4 x i32> poison, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
494 ; CHECK-NEXT: ret <4 x i32> [[R]]
496 %t1 = shufflevector <4 x i32> %v1, <4 x i32> zeroinitializer, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
497 %t2 = shufflevector <4 x i32> %v2, <4 x i32> zeroinitializer, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
498 %r = add nuw <4 x i32> %t1, %t2
502 define <4 x float> @shuffle_17fsub_fast(<4 x float> %v1, <4 x float> %v2) {
503 ; CHECK-LABEL: @shuffle_17fsub_fast(
504 ; CHECK-NEXT: [[TMP1:%.*]] = fsub fast <4 x float> [[V1:%.*]], [[V2:%.*]]
505 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x float> [[TMP1]], <4 x float> poison, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
506 ; CHECK-NEXT: ret <4 x float> [[R]]
508 %t1 = shufflevector <4 x float> %v1, <4 x float> zeroinitializer, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
509 %t2 = shufflevector <4 x float> %v2, <4 x float> zeroinitializer, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
510 %r = fsub fast <4 x float> %t1, %t2
514 define <4 x i32> @add_const(<4 x i32> %v) {
515 ; CHECK-LABEL: @add_const(
516 ; CHECK-NEXT: [[TMP1:%.*]] = add <4 x i32> [[V:%.*]], <i32 44, i32 41, i32 42, i32 43>
517 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x i32> [[TMP1]], <4 x i32> poison, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
518 ; CHECK-NEXT: ret <4 x i32> [[R]]
520 %t1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
521 %r = add <4 x i32> %t1, <i32 41, i32 42, i32 43, i32 44>
525 define <4 x i32> @sub_const(<4 x i32> %v) {
526 ; CHECK-LABEL: @sub_const(
527 ; CHECK-NEXT: [[TMP1:%.*]] = sub <4 x i32> <i32 44, i32 43, i32 42, i32 41>, [[V:%.*]]
528 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x i32> [[TMP1]], <4 x i32> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0>
529 ; CHECK-NEXT: ret <4 x i32> [[R]]
531 %t1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 3, i32 2, i32 1, i32 0>
532 %r = sub <4 x i32> <i32 41, i32 42, i32 43, i32 44>, %t1
536 ; Math before shuffle requires an extra shuffle.
538 define <2 x float> @fadd_const_multiuse(<2 x float> %v) {
539 ; CHECK-LABEL: @fadd_const_multiuse(
540 ; CHECK-NEXT: [[T1:%.*]] = shufflevector <2 x float> [[V:%.*]], <2 x float> poison, <2 x i32> <i32 1, i32 0>
541 ; CHECK-NEXT: [[R:%.*]] = fadd <2 x float> [[T1]], <float 4.100000e+01, float 4.200000e+01>
542 ; CHECK-NEXT: call void @use(<2 x float> [[T1]])
543 ; CHECK-NEXT: ret <2 x float> [[R]]
545 %t1 = shufflevector <2 x float> %v, <2 x float> undef, <2 x i32> <i32 1, i32 0>
546 %r = fadd <2 x float> %t1, <float 41.0, float 42.0>
547 call void @use(<2 x float> %t1)
551 ; Math before splat allows replacing constant elements with undef lanes.
553 define <4 x i32> @mul_const_splat(<4 x i32> %v) {
554 ; CHECK-LABEL: @mul_const_splat(
555 ; CHECK-NEXT: [[TMP1:%.*]] = mul <4 x i32> [[V:%.*]], <i32 poison, i32 42, i32 poison, i32 poison>
556 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x i32> [[TMP1]], <4 x i32> poison, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
557 ; CHECK-NEXT: ret <4 x i32> [[R]]
559 %t1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
560 %r = mul <4 x i32> <i32 42, i32 42, i32 42, i32 42>, %t1
564 ; Take 2 elements of a vector and shift each of those by a different amount
566 define <4 x i32> @lshr_const_half_splat(<4 x i32> %v) {
567 ; CHECK-LABEL: @lshr_const_half_splat(
568 ; CHECK-NEXT: [[TMP1:%.*]] = lshr <4 x i32> <i32 poison, i32 8, i32 9, i32 poison>, [[V:%.*]]
569 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x i32> [[TMP1]], <4 x i32> poison, <4 x i32> <i32 1, i32 1, i32 2, i32 2>
570 ; CHECK-NEXT: ret <4 x i32> [[R]]
572 %t1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 1, i32 1, i32 2, i32 2>
573 %r = lshr <4 x i32> <i32 8, i32 8, i32 9, i32 9>, %t1
577 ; We can't change this because there's no pre-shuffle version of the fmul constant.
579 define <2 x float> @fmul_const_invalid_constant(<2 x float> %v) {
580 ; CHECK-LABEL: @fmul_const_invalid_constant(
581 ; CHECK-NEXT: [[T1:%.*]] = shufflevector <2 x float> [[V:%.*]], <2 x float> poison, <2 x i32> zeroinitializer
582 ; CHECK-NEXT: [[R:%.*]] = fmul <2 x float> [[T1]], <float 4.100000e+01, float 4.200000e+01>
583 ; CHECK-NEXT: ret <2 x float> [[R]]
585 %t1 = shufflevector <2 x float> %v, <2 x float> undef, <2 x i32> <i32 0, i32 0>
586 %r = fmul <2 x float> %t1, <float 41.0, float 42.0>
590 ; Reduce the width of the binop by moving it ahead of a shuffle.
592 define <4 x i8> @widening_shuffle_add_1(<2 x i8> %x) {
593 ; CHECK-LABEL: @widening_shuffle_add_1(
594 ; CHECK-NEXT: [[TMP1:%.*]] = add <2 x i8> [[X:%.*]], <i8 42, i8 43>
595 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i8> [[TMP1]], <2 x i8> poison, <4 x i32> <i32 0, i32 1, i32 poison, i32 poison>
596 ; CHECK-NEXT: ret <4 x i8> [[R]]
598 %widex = shufflevector <2 x i8> %x, <2 x i8> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
599 %r = add <4 x i8> %widex, <i8 42, i8 43, i8 44, i8 45>
603 ; Reduce the width of the binop by moving it ahead of a shuffle.
605 define <4 x i8> @widening_shuffle_add_2(<2 x i8> %x) {
606 ; CHECK-LABEL: @widening_shuffle_add_2(
607 ; CHECK-NEXT: [[TMP1:%.*]] = add <2 x i8> [[X:%.*]], <i8 43, i8 42>
608 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i8> [[TMP1]], <2 x i8> poison, <4 x i32> <i32 1, i32 0, i32 poison, i32 poison>
609 ; CHECK-NEXT: ret <4 x i8> [[R]]
611 %widex = shufflevector <2 x i8> %x, <2 x i8> undef, <4 x i32> <i32 1, i32 0, i32 undef, i32 undef>
612 %r = add <4 x i8> %widex, <i8 42, i8 43, i8 44, i8 45>
616 ; Negative test - widening shuffles have the same mask/constant constraint as non-size-changing shuffles.
618 define <4 x i8> @widening_shuffle_add_invalid_constant(<2 x i8> %x) {
619 ; CHECK-LABEL: @widening_shuffle_add_invalid_constant(
620 ; CHECK-NEXT: [[WIDEX:%.*]] = shufflevector <2 x i8> [[X:%.*]], <2 x i8> poison, <4 x i32> <i32 1, i32 1, i32 poison, i32 poison>
621 ; CHECK-NEXT: [[R:%.*]] = add <4 x i8> [[WIDEX]], <i8 42, i8 43, i8 44, i8 45>
622 ; CHECK-NEXT: ret <4 x i8> [[R]]
624 %widex = shufflevector <2 x i8> %x, <2 x i8> undef, <4 x i32> <i32 1, i32 1, i32 undef, i32 undef>
625 %r = add <4 x i8> %widex, <i8 42, i8 43, i8 44, i8 45>
629 ; Negative test - widening shuffles have an additional constraint: they must not extend with anything but undefs.
631 define <4 x i8> @widening_shuffle_add_invalid_mask(<2 x i8> %x) {
632 ; CHECK-LABEL: @widening_shuffle_add_invalid_mask(
633 ; CHECK-NEXT: [[WIDEX:%.*]] = shufflevector <2 x i8> [[X:%.*]], <2 x i8> poison, <4 x i32> <i32 0, i32 1, i32 poison, i32 0>
634 ; CHECK-NEXT: [[R:%.*]] = add <4 x i8> [[WIDEX]], <i8 42, i8 43, i8 44, i8 45>
635 ; CHECK-NEXT: ret <4 x i8> [[R]]
637 %widex = shufflevector <2 x i8> %x, <2 x i8> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 0>
638 %r = add <4 x i8> %widex, <i8 42, i8 43, i8 44, i8 45>
642 ; A binop that produces undef in the high lanes can be moved before the shuffle.
643 ; This is ok because 'shl C, undef --> undef'.
645 define <4 x i16> @widening_shuffle_shl_constant_op0(<2 x i16> %v) {
646 ; CHECK-LABEL: @widening_shuffle_shl_constant_op0(
647 ; CHECK-NEXT: [[TMP1:%.*]] = shl <2 x i16> <i16 42, i16 -42>, [[V:%.*]]
648 ; CHECK-NEXT: [[BO:%.*]] = shufflevector <2 x i16> [[TMP1]], <2 x i16> poison, <4 x i32> <i32 0, i32 1, i32 poison, i32 poison>
649 ; CHECK-NEXT: ret <4 x i16> [[BO]]
651 %shuf = shufflevector <2 x i16> %v, <2 x i16> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
652 %bo = shl <4 x i16> <i16 42, i16 -42, i16 -1, i16 -1>, %shuf
656 ; A binop that produces undef in the high lanes can be moved before the shuffle.
657 ; This is ok because 'shl undef, 0 --> undef'.
659 define <4 x i16> @widening_shuffle_shl_constant_op1(<2 x i16> %v) {
660 ; CHECK-LABEL: @widening_shuffle_shl_constant_op1(
661 ; CHECK-NEXT: [[TMP1:%.*]] = shl <2 x i16> [[V:%.*]], <i16 2, i16 4>
662 ; CHECK-NEXT: [[BO:%.*]] = shufflevector <2 x i16> [[TMP1]], <2 x i16> poison, <4 x i32> <i32 0, i32 1, i32 poison, i32 poison>
663 ; CHECK-NEXT: ret <4 x i16> [[BO]]
665 %shuf = shufflevector <2 x i16> %v, <2 x i16> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
666 %bo = shl <4 x i16> %shuf, <i16 2, i16 4, i16 0, i16 0>
670 ; This is valid for poison, but would not be valid for undef.
672 define <4 x i16> @widening_shuffle_shl_constant_op1_non0(<2 x i16> %v) {
673 ; CHECK-LABEL: @widening_shuffle_shl_constant_op1_non0(
674 ; CHECK-NEXT: [[TMP1:%.*]] = shl <2 x i16> [[V:%.*]], <i16 2, i16 4>
675 ; CHECK-NEXT: [[BO:%.*]] = shufflevector <2 x i16> [[TMP1]], <2 x i16> poison, <4 x i32> <i32 0, i32 1, i32 poison, i32 poison>
676 ; CHECK-NEXT: ret <4 x i16> [[BO]]
678 %shuf = shufflevector <2 x i16> %v, <2 x i16> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
679 %bo = shl <4 x i16> %shuf, <i16 2, i16 4, i16 1, i16 2>
683 ; A binop that does not produce undef in the high lanes can not be moved before the shuffle.
684 ; This is not ok because 'or -1, undef --> -1' but moving the shuffle results in undef instead.
686 define <4 x i16> @widening_shuffle_or(<2 x i16> %v) {
687 ; CHECK-LABEL: @widening_shuffle_or(
688 ; CHECK-NEXT: [[TMP1:%.*]] = or <2 x i16> [[V:%.*]], <i16 42, i16 -42>
689 ; CHECK-NEXT: [[BO:%.*]] = shufflevector <2 x i16> [[TMP1]], <2 x i16> poison, <4 x i32> <i32 0, i32 1, i32 poison, i32 poison>
690 ; CHECK-NEXT: ret <4 x i16> [[BO]]
692 %shuf = shufflevector <2 x i16> %v, <2 x i16> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
693 %bo = or <4 x i16> %shuf, <i16 42, i16 -42, i16 -1, i16 -1>
697 define <4 x i32> @shuffle_17add2(<4 x i32> %v) {
698 ; CHECK-LABEL: @shuffle_17add2(
699 ; CHECK-NEXT: [[TMP1:%.*]] = shl <4 x i32> [[V:%.*]], splat (i32 1)
700 ; CHECK-NEXT: ret <4 x i32> [[TMP1]]
702 %t1 = shufflevector <4 x i32> %v, <4 x i32> zeroinitializer, <4 x i32> <i32 3, i32 2, i32 1, i32 0>
703 %t2 = add <4 x i32> %t1, %t1
704 %r = shufflevector <4 x i32> %t2, <4 x i32> zeroinitializer, <4 x i32> <i32 3, i32 2, i32 1, i32 0>
708 define <4 x i32> @shuffle_17mulsplat(<4 x i32> %v) {
709 ; CHECK-LABEL: @shuffle_17mulsplat(
710 ; CHECK-NEXT: [[TMP1:%.*]] = mul <4 x i32> [[V:%.*]], [[V]]
711 ; CHECK-NEXT: [[M1:%.*]] = shufflevector <4 x i32> [[TMP1]], <4 x i32> poison, <4 x i32> zeroinitializer
712 ; CHECK-NEXT: ret <4 x i32> [[M1]]
714 %s1 = shufflevector <4 x i32> %v, <4 x i32> zeroinitializer, <4 x i32> zeroinitializer
715 %m1 = mul <4 x i32> %s1, %s1
716 %s2 = shufflevector <4 x i32> %m1, <4 x i32> zeroinitializer, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
720 ; Do not reorder shuffle and binop if LHS of shuffles are of different size
721 define <2 x i32> @pr19717(<4 x i32> %in0, <2 x i32> %in1) {
722 ; CHECK-LABEL: @pr19717(
723 ; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <4 x i32> [[IN0:%.*]], <4 x i32> poison, <2 x i32> zeroinitializer
724 ; CHECK-NEXT: [[SHUFFLE4:%.*]] = shufflevector <2 x i32> [[IN1:%.*]], <2 x i32> poison, <2 x i32> zeroinitializer
725 ; CHECK-NEXT: [[MUL:%.*]] = mul <2 x i32> [[SHUFFLE]], [[SHUFFLE4]]
726 ; CHECK-NEXT: ret <2 x i32> [[MUL]]
728 %shuffle = shufflevector <4 x i32> %in0, <4 x i32> %in0, <2 x i32> zeroinitializer
729 %shuffle4 = shufflevector <2 x i32> %in1, <2 x i32> %in1, <2 x i32> zeroinitializer
730 %mul = mul <2 x i32> %shuffle, %shuffle4
734 define <4 x i16> @pr19717a(<8 x i16> %in0, <8 x i16> %in1) {
735 ; CHECK-LABEL: @pr19717a(
736 ; CHECK-NEXT: [[TMP1:%.*]] = mul <8 x i16> [[IN0:%.*]], [[IN1:%.*]]
737 ; CHECK-NEXT: [[MUL:%.*]] = shufflevector <8 x i16> [[TMP1]], <8 x i16> poison, <4 x i32> <i32 5, i32 5, i32 5, i32 5>
738 ; CHECK-NEXT: ret <4 x i16> [[MUL]]
740 %shuffle = shufflevector <8 x i16> %in0, <8 x i16> %in0, <4 x i32> <i32 5, i32 5, i32 5, i32 5>
741 %shuffle1 = shufflevector <8 x i16> %in1, <8 x i16> %in1, <4 x i32> <i32 5, i32 5, i32 5, i32 5>
742 %mul = mul <4 x i16> %shuffle, %shuffle1
746 define <8 x i8> @pr19730(<16 x i8> %in0) {
747 ; CHECK-LABEL: @pr19730(
748 ; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <16 x i8> [[IN0:%.*]], <16 x i8> poison, <8 x i32> <i32 7, i32 6, i32 5, i32 4, i32 3, i32 2, i32 1, i32 0>
749 ; CHECK-NEXT: [[SHUFFLE1:%.*]] = shufflevector <8 x i8> [[SHUFFLE]], <8 x i8> poison, <8 x i32> <i32 7, i32 6, i32 5, i32 4, i32 3, i32 2, i32 1, i32 0>
750 ; CHECK-NEXT: ret <8 x i8> [[SHUFFLE1]]
752 %shuffle = shufflevector <16 x i8> %in0, <16 x i8> undef, <8 x i32> <i32 7, i32 6, i32 5, i32 4, i32 3, i32 2, i32 1, i32 0>
753 %shuffle1 = shufflevector <8 x i8> %shuffle, <8 x i8> undef, <8 x i32> <i32 7, i32 6, i32 5, i32 4, i32 3, i32 2, i32 1, i32 0>
754 ret <8 x i8> %shuffle1
757 define i32 @pr19737(<4 x i32> %in0) {
758 ; CHECK-LABEL: @pr19737(
759 ; CHECK-NEXT: [[TMP1:%.*]] = extractelement <4 x i32> [[IN0:%.*]], i64 0
760 ; CHECK-NEXT: ret i32 [[TMP1]]
762 %shuffle.i = shufflevector <4 x i32> zeroinitializer, <4 x i32> %in0, <4 x i32> <i32 0, i32 4, i32 2, i32 6>
763 %neg.i = xor <4 x i32> %shuffle.i, <i32 -1, i32 -1, i32 -1, i32 -1>
764 %and.i = and <4 x i32> %in0, %neg.i
765 %rv = extractelement <4 x i32> %and.i, i32 0
769 ; In PR20059 ( http://llvm.org/pr20059 ), shufflevector operations are reordered/removed
770 ; for an srem operation. This is not a valid optimization because it may cause a trap
773 define <4 x i32> @pr20059(<4 x i32> %p1, <4 x i32> %p2) {
774 ; CHECK-LABEL: @pr20059(
775 ; CHECK-NEXT: [[SPLAT1:%.*]] = shufflevector <4 x i32> [[P1:%.*]], <4 x i32> poison, <4 x i32> zeroinitializer
776 ; CHECK-NEXT: [[SPLAT2:%.*]] = shufflevector <4 x i32> [[P2:%.*]], <4 x i32> poison, <4 x i32> zeroinitializer
777 ; CHECK-NEXT: [[RETVAL:%.*]] = srem <4 x i32> [[SPLAT1]], [[SPLAT2]]
778 ; CHECK-NEXT: ret <4 x i32> [[RETVAL]]
780 %splat1 = shufflevector <4 x i32> %p1, <4 x i32> undef, <4 x i32> zeroinitializer
781 %splat2 = shufflevector <4 x i32> %p2, <4 x i32> undef, <4 x i32> zeroinitializer
782 %retval = srem <4 x i32> %splat1, %splat2
783 ret <4 x i32> %retval
786 define <4 x i32> @pr20114(<4 x i32> %__mask) {
787 ; CHECK-LABEL: @pr20114(
788 ; CHECK-NEXT: [[MASK01_I:%.*]] = shufflevector <4 x i32> [[__MASK:%.*]], <4 x i32> poison, <4 x i32> <i32 0, i32 0, i32 1, i32 1>
789 ; CHECK-NEXT: [[MASKED_NEW_I_I_I:%.*]] = and <4 x i32> [[MASK01_I]], bitcast (<2 x i64> <i64 ptrtoint (ptr @pr20114 to i64), i64 ptrtoint (ptr @pr20114 to i64)> to <4 x i32>)
790 ; CHECK-NEXT: ret <4 x i32> [[MASKED_NEW_I_I_I]]
792 %mask01.i = shufflevector <4 x i32> %__mask, <4 x i32> undef, <4 x i32> <i32 0, i32 0, i32 1, i32 1>
793 %masked_new.i.i.i = and <4 x i32> bitcast (<2 x i64> <i64 ptrtoint (ptr @pr20114 to i64), i64 ptrtoint (ptr @pr20114 to i64)> to <4 x i32>), %mask01.i
794 ret <4 x i32> %masked_new.i.i.i
797 define <2 x ptr> @pr23113(<4 x ptr> %A) {
798 ; CHECK-LABEL: @pr23113(
799 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <4 x ptr> [[A:%.*]], <4 x ptr> poison, <2 x i32> <i32 0, i32 1>
800 ; CHECK-NEXT: ret <2 x ptr> [[TMP1]]
802 %1 = shufflevector <4 x ptr> %A, <4 x ptr> undef, <2 x i32> <i32 0, i32 1>
806 ; Unused lanes in the new binop should not kill the entire op (although it may simplify anyway as shown here).
808 define <2 x i32> @PR37648(<2 x i32> %x) {
809 ; CHECK-LABEL: @PR37648(
810 ; CHECK-NEXT: ret <2 x i32> zeroinitializer
812 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
813 %r = urem <2 x i32> %splat, <i32 1, i32 1>
817 ; Test shuffle followed by binop with splat constant for all 18 binop opcodes.
818 ; Test with constant as operand 0 and operand 1 for non-commutative opcodes.
820 define <2 x i32> @add_splat_constant(<2 x i32> %x) {
821 ; CHECK-LABEL: @add_splat_constant(
822 ; CHECK-NEXT: [[TMP1:%.*]] = add <2 x i32> [[X:%.*]], <i32 42, i32 poison>
823 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
824 ; CHECK-NEXT: ret <2 x i32> [[R]]
826 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
827 %r = add <2 x i32> %splat, <i32 42, i32 42>
831 define <2 x i32> @sub_splat_constant0(<2 x i32> %x) {
832 ; CHECK-LABEL: @sub_splat_constant0(
833 ; CHECK-NEXT: [[TMP1:%.*]] = sub <2 x i32> <i32 42, i32 poison>, [[X:%.*]]
834 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
835 ; CHECK-NEXT: ret <2 x i32> [[R]]
837 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
838 %r = sub <2 x i32> <i32 42, i32 42>, %splat
842 define <2 x i32> @sub_splat_constant1(<2 x i32> %x) {
843 ; CHECK-LABEL: @sub_splat_constant1(
844 ; CHECK-NEXT: [[TMP1:%.*]] = add <2 x i32> [[X:%.*]], <i32 -42, i32 poison>
845 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
846 ; CHECK-NEXT: ret <2 x i32> [[R]]
848 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
849 %r = sub <2 x i32> %splat, <i32 42, i32 42>
853 define <2 x i32> @mul_splat_constant(<2 x i32> %x) {
854 ; CHECK-LABEL: @mul_splat_constant(
855 ; CHECK-NEXT: [[TMP1:%.*]] = mul <2 x i32> [[X:%.*]], <i32 42, i32 poison>
856 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
857 ; CHECK-NEXT: ret <2 x i32> [[R]]
859 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
860 %r = mul <2 x i32> %splat, <i32 42, i32 42>
864 define <2 x i32> @shl_splat_constant0(<2 x i32> %x) {
865 ; CHECK-LABEL: @shl_splat_constant0(
866 ; CHECK-NEXT: [[TMP1:%.*]] = shl <2 x i32> <i32 5, i32 poison>, [[X:%.*]]
867 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
868 ; CHECK-NEXT: ret <2 x i32> [[R]]
870 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
871 %r = shl <2 x i32> <i32 5, i32 5>, %splat
875 define <2 x i32> @shl_splat_constant1(<2 x i32> %x) {
876 ; CHECK-LABEL: @shl_splat_constant1(
877 ; CHECK-NEXT: [[TMP1:%.*]] = shl <2 x i32> [[X:%.*]], <i32 5, i32 0>
878 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
879 ; CHECK-NEXT: ret <2 x i32> [[R]]
881 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
882 %r = shl <2 x i32> %splat, <i32 5, i32 5>
886 define <2 x i32> @ashr_splat_constant0(<2 x i32> %x) {
887 ; CHECK-LABEL: @ashr_splat_constant0(
888 ; CHECK-NEXT: [[TMP1:%.*]] = lshr <2 x i32> <i32 5, i32 poison>, [[X:%.*]]
889 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
890 ; CHECK-NEXT: ret <2 x i32> [[R]]
892 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
893 %r = ashr <2 x i32> <i32 5, i32 5>, %splat
897 define <2 x i32> @ashr_splat_constant1(<2 x i32> %x) {
898 ; CHECK-LABEL: @ashr_splat_constant1(
899 ; CHECK-NEXT: [[TMP1:%.*]] = ashr <2 x i32> [[X:%.*]], <i32 5, i32 0>
900 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
901 ; CHECK-NEXT: ret <2 x i32> [[R]]
903 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
904 %r = ashr <2 x i32> %splat, <i32 5, i32 5>
908 define <2 x i32> @lshr_splat_constant0(<2 x i32> %x) {
909 ; CHECK-LABEL: @lshr_splat_constant0(
910 ; CHECK-NEXT: [[TMP1:%.*]] = lshr <2 x i32> <i32 5, i32 poison>, [[X:%.*]]
911 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
912 ; CHECK-NEXT: ret <2 x i32> [[R]]
914 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
915 %r = lshr <2 x i32> <i32 5, i32 5>, %splat
919 define <2 x i32> @lshr_splat_constant1(<2 x i32> %x) {
920 ; CHECK-LABEL: @lshr_splat_constant1(
921 ; CHECK-NEXT: [[TMP1:%.*]] = lshr <2 x i32> [[X:%.*]], <i32 5, i32 0>
922 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
923 ; CHECK-NEXT: ret <2 x i32> [[R]]
925 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
926 %r = lshr <2 x i32> %splat, <i32 5, i32 5>
930 define <2 x i32> @urem_splat_constant0(<2 x i32> %x) {
931 ; CHECK-LABEL: @urem_splat_constant0(
932 ; CHECK-NEXT: [[SPLAT:%.*]] = shufflevector <2 x i32> [[X:%.*]], <2 x i32> poison, <2 x i32> zeroinitializer
933 ; CHECK-NEXT: [[R:%.*]] = urem <2 x i32> splat (i32 42), [[SPLAT]]
934 ; CHECK-NEXT: ret <2 x i32> [[R]]
936 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
937 %r = urem <2 x i32> <i32 42, i32 42>, %splat
941 define <2 x i32> @urem_splat_constant1(<2 x i32> %x) {
942 ; CHECK-LABEL: @urem_splat_constant1(
943 ; CHECK-NEXT: [[TMP1:%.*]] = urem <2 x i32> [[X:%.*]], <i32 42, i32 1>
944 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
945 ; CHECK-NEXT: ret <2 x i32> [[R]]
947 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
948 %r = urem <2 x i32> %splat, <i32 42, i32 42>
952 define <2 x i32> @srem_splat_constant0(<2 x i32> %x) {
953 ; CHECK-LABEL: @srem_splat_constant0(
954 ; CHECK-NEXT: [[SPLAT:%.*]] = shufflevector <2 x i32> [[X:%.*]], <2 x i32> poison, <2 x i32> zeroinitializer
955 ; CHECK-NEXT: [[R:%.*]] = srem <2 x i32> splat (i32 42), [[SPLAT]]
956 ; CHECK-NEXT: ret <2 x i32> [[R]]
958 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
959 %r = srem <2 x i32> <i32 42, i32 42>, %splat
963 define <2 x i32> @srem_splat_constant1(<2 x i32> %x) {
964 ; CHECK-LABEL: @srem_splat_constant1(
965 ; CHECK-NEXT: [[TMP1:%.*]] = srem <2 x i32> [[X:%.*]], <i32 42, i32 1>
966 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
967 ; CHECK-NEXT: ret <2 x i32> [[R]]
969 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
970 %r = srem <2 x i32> %splat, <i32 42, i32 42>
974 define <2 x i32> @udiv_splat_constant0(<2 x i32> %x) {
975 ; CHECK-LABEL: @udiv_splat_constant0(
976 ; CHECK-NEXT: [[SPLAT:%.*]] = shufflevector <2 x i32> [[X:%.*]], <2 x i32> poison, <2 x i32> zeroinitializer
977 ; CHECK-NEXT: [[R:%.*]] = udiv <2 x i32> splat (i32 42), [[SPLAT]]
978 ; CHECK-NEXT: ret <2 x i32> [[R]]
980 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
981 %r = udiv <2 x i32> <i32 42, i32 42>, %splat
985 define <2 x i32> @udiv_splat_constant1(<2 x i32> %x) {
986 ; CHECK-LABEL: @udiv_splat_constant1(
987 ; CHECK-NEXT: [[TMP1:%.*]] = udiv <2 x i32> [[X:%.*]], <i32 42, i32 1>
988 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
989 ; CHECK-NEXT: ret <2 x i32> [[R]]
991 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
992 %r = udiv <2 x i32> %splat, <i32 42, i32 42>
996 define <2 x i32> @sdiv_splat_constant0(<2 x i32> %x) {
997 ; CHECK-LABEL: @sdiv_splat_constant0(
998 ; CHECK-NEXT: [[SPLAT:%.*]] = shufflevector <2 x i32> [[X:%.*]], <2 x i32> poison, <2 x i32> zeroinitializer
999 ; CHECK-NEXT: [[R:%.*]] = sdiv <2 x i32> splat (i32 42), [[SPLAT]]
1000 ; CHECK-NEXT: ret <2 x i32> [[R]]
1002 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
1003 %r = sdiv <2 x i32> <i32 42, i32 42>, %splat
1007 define <2 x i32> @sdiv_splat_constant1(<2 x i32> %x) {
1008 ; CHECK-LABEL: @sdiv_splat_constant1(
1009 ; CHECK-NEXT: [[TMP1:%.*]] = sdiv <2 x i32> [[X:%.*]], <i32 42, i32 1>
1010 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
1011 ; CHECK-NEXT: ret <2 x i32> [[R]]
1013 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
1014 %r = sdiv <2 x i32> %splat, <i32 42, i32 42>
1018 define <2 x i32> @and_splat_constant(<2 x i32> %x) {
1019 ; CHECK-LABEL: @and_splat_constant(
1020 ; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i32> [[X:%.*]], <i32 42, i32 poison>
1021 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
1022 ; CHECK-NEXT: ret <2 x i32> [[R]]
1024 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
1025 %r = and <2 x i32> %splat, <i32 42, i32 42>
1029 define <4 x i16> @and_constant_mask_poison(<4 x i16> %add) {
1030 ; CHECK-LABEL: @and_constant_mask_poison(
1031 ; CHECK-NEXT: entry:
1032 ; CHECK-NEXT: [[AND:%.*]] = shufflevector <4 x i16> [[ADD:%.*]], <4 x i16> poison, <4 x i32> <i32 poison, i32 poison, i32 1, i32 1>
1033 ; CHECK-NEXT: ret <4 x i16> [[AND]]
1036 %shuffle = shufflevector <4 x i16> %add, <4 x i16> undef, <4 x i32> <i32 undef, i32 undef, i32 1, i32 1>
1037 %and = and <4 x i16> %shuffle, <i16 0, i16 0, i16 -1, i16 -1>
1041 define <4 x i16> @and_constant_mask_poison_2(<4 x i16> %add) {
1042 ; CHECK-LABEL: @and_constant_mask_poison_2(
1043 ; CHECK-NEXT: entry:
1044 ; CHECK-NEXT: [[AND:%.*]] = shufflevector <4 x i16> [[ADD:%.*]], <4 x i16> poison, <4 x i32> <i32 1, i32 1, i32 1, i32 poison>
1045 ; CHECK-NEXT: ret <4 x i16> [[AND]]
1048 %shuffle = shufflevector <4 x i16> %add, <4 x i16> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 undef>
1049 %and = and <4 x i16> %shuffle, <i16 -1, i16 -1, i16 -1, i16 -0>
1053 ; We can move the AND across the shuffle, as -1 (AND identity value) is used for undef lanes.
1054 define <4 x i16> @and_constant_mask_poison_3(<4 x i16> %add) {
1055 ; CHECK-LABEL: @and_constant_mask_poison_3(
1056 ; CHECK-NEXT: entry:
1057 ; CHECK-NEXT: ret <4 x i16> <i16 0, i16 0, i16 0, i16 undef>
1060 %shuffle = shufflevector <4 x i16> %add, <4 x i16> undef, <4 x i32> <i32 0, i32 1, i32 1, i32 undef>
1061 %and = and <4 x i16> %shuffle, <i16 0, i16 0, i16 0, i16 -1>
1065 ; We can move the AND across the shuffle, as -1 (AND identity value) is used for undef lanes.
1066 define <4 x i16> @and_constant_mask_poison_4(<4 x i16> %add) {
1067 ; CHECK-LABEL: @and_constant_mask_poison_4(
1068 ; CHECK-NEXT: entry:
1069 ; CHECK-NEXT: [[TMP0:%.*]] = and <4 x i16> [[ADD:%.*]], <i16 9, i16 20, i16 poison, i16 poison>
1070 ; CHECK-NEXT: [[AND:%.*]] = shufflevector <4 x i16> [[TMP0]], <4 x i16> poison, <4 x i32> <i32 0, i32 1, i32 1, i32 poison>
1071 ; CHECK-NEXT: ret <4 x i16> [[AND]]
1074 %shuffle = shufflevector <4 x i16> %add, <4 x i16> undef, <4 x i32> <i32 0, i32 1, i32 1, i32 undef>
1075 %and = and <4 x i16> %shuffle, <i16 9, i16 20, i16 20, i16 -1>
1079 define <4 x i16> @and_constant_mask_not_undef(<4 x i16> %add) {
1080 ; CHECK-LABEL: @and_constant_mask_not_undef(
1081 ; CHECK-NEXT: entry:
1082 ; CHECK-NEXT: [[TMP0:%.*]] = and <4 x i16> [[ADD:%.*]], <i16 poison, i16 -1, i16 0, i16 0>
1083 ; CHECK-NEXT: [[AND:%.*]] = shufflevector <4 x i16> [[TMP0]], <4 x i16> poison, <4 x i32> <i32 2, i32 3, i32 1, i32 1>
1084 ; CHECK-NEXT: ret <4 x i16> [[AND]]
1087 %shuffle = shufflevector <4 x i16> %add, <4 x i16> undef, <4 x i32> <i32 2, i32 3, i32 1, i32 1>
1088 %and = and <4 x i16> %shuffle, <i16 0, i16 0, i16 -1, i16 -1>
1092 define <4 x i16> @or_constant_mask_poison(<4 x i16> %in) {
1093 ; CHECK-LABEL: @or_constant_mask_poison(
1094 ; CHECK-NEXT: entry:
1095 ; CHECK-NEXT: [[OR:%.*]] = shufflevector <4 x i16> [[IN:%.*]], <4 x i16> poison, <4 x i32> <i32 poison, i32 poison, i32 1, i32 1>
1096 ; CHECK-NEXT: ret <4 x i16> [[OR]]
1099 %shuffle = shufflevector <4 x i16> %in, <4 x i16> undef, <4 x i32> <i32 undef, i32 undef, i32 1, i32 1>
1100 %or = or <4 x i16> %shuffle, <i16 -1, i16 -1, i16 0, i16 0>
1104 define <4 x i16> @or_constant_mask_poison_2(<4 x i16> %in) {
1105 ; CHECK-LABEL: @or_constant_mask_poison_2(
1106 ; CHECK-NEXT: entry:
1107 ; CHECK-NEXT: [[OR:%.*]] = shufflevector <4 x i16> [[IN:%.*]], <4 x i16> poison, <4 x i32> <i32 poison, i32 1, i32 1, i32 poison>
1108 ; CHECK-NEXT: ret <4 x i16> [[OR]]
1111 %shuffle = shufflevector <4 x i16> %in, <4 x i16> undef, <4 x i32> <i32 undef, i32 1, i32 1, i32 undef>
1112 %or = or <4 x i16> %shuffle, <i16 -1, i16 0, i16 0, i16 -1>
1116 ; We can move the OR across the shuffle, as 0 (OR identity value) is used for undef lanes.
1117 define <4 x i16> @or_constant_mask_poison_3(<4 x i16> %in) {
1118 ; CHECK-LABEL: @or_constant_mask_poison_3(
1119 ; CHECK-NEXT: entry:
1120 ; CHECK-NEXT: ret <4 x i16> <i16 undef, i16 -1, i16 -1, i16 undef>
1123 %shuffle = shufflevector <4 x i16> %in, <4 x i16> undef, <4 x i32> <i32 undef, i32 1, i32 1, i32 undef>
1124 %or = or <4 x i16> %shuffle, <i16 0, i16 -1, i16 -1, i16 0>
1128 ; We can move the OR across the shuffle, as 0 (OR identity value) is used for undef lanes.
1129 define <4 x i16> @or_constant_mask_poison_4(<4 x i16> %in) {
1130 ; CHECK-LABEL: @or_constant_mask_poison_4(
1131 ; CHECK-NEXT: entry:
1132 ; CHECK-NEXT: [[TMP0:%.*]] = or <4 x i16> [[IN:%.*]], <i16 poison, i16 99, i16 poison, i16 poison>
1133 ; CHECK-NEXT: [[OR:%.*]] = shufflevector <4 x i16> [[TMP0]], <4 x i16> poison, <4 x i32> <i32 poison, i32 1, i32 1, i32 poison>
1134 ; CHECK-NEXT: ret <4 x i16> [[OR]]
1137 %shuffle = shufflevector <4 x i16> %in, <4 x i16> undef, <4 x i32> <i32 undef, i32 1, i32 1, i32 undef>
1138 %or = or <4 x i16> %shuffle, <i16 0, i16 99, i16 99, i16 0>
1142 define <4 x i16> @or_constant_mask_not_undef(<4 x i16> %in) {
1143 ; CHECK-LABEL: @or_constant_mask_not_undef(
1144 ; CHECK-NEXT: entry:
1145 ; CHECK-NEXT: [[TMP0:%.*]] = or <4 x i16> [[IN:%.*]], <i16 poison, i16 -1, i16 0, i16 0>
1146 ; CHECK-NEXT: [[AND:%.*]] = shufflevector <4 x i16> [[TMP0]], <4 x i16> poison, <4 x i32> <i32 2, i32 3, i32 1, i32 1>
1147 ; CHECK-NEXT: ret <4 x i16> [[AND]]
1150 %shuffle = shufflevector <4 x i16> %in, <4 x i16> undef, <4 x i32> <i32 2, i32 3, i32 1, i32 1>
1151 %and = or <4 x i16> %shuffle, <i16 0, i16 0, i16 -1, i16 -1>
1155 define <4 x i16> @shl_constant_mask_undef(<4 x i16> %in) {
1156 ; CHECK-LABEL: @shl_constant_mask_undef(
1157 ; CHECK-NEXT: entry:
1158 ; CHECK-NEXT: [[TMP0:%.*]] = shl <4 x i16> [[IN:%.*]], <i16 10, i16 0, i16 0, i16 0>
1159 ; CHECK-NEXT: [[SHL:%.*]] = shufflevector <4 x i16> [[TMP0]], <4 x i16> poison, <4 x i32> <i32 0, i32 poison, i32 1, i32 1>
1160 ; CHECK-NEXT: ret <4 x i16> [[SHL]]
1163 %shuffle = shufflevector <4 x i16> %in, <4 x i16> undef, <4 x i32> <i32 0, i32 undef, i32 1, i32 1>
1164 %shl = shl <4 x i16> %shuffle, <i16 10, i16 3, i16 0, i16 0>
1168 define <4 x i16> @add_constant_mask_undef(<4 x i16> %in) {
1169 ; CHECK-LABEL: @add_constant_mask_undef(
1170 ; CHECK-NEXT: entry:
1171 ; CHECK-NEXT: [[ADD:%.*]] = shufflevector <4 x i16> [[IN:%.*]], <4 x i16> poison, <4 x i32> <i32 poison, i32 poison, i32 1, i32 1>
1172 ; CHECK-NEXT: ret <4 x i16> [[ADD]]
1175 %shuffle = shufflevector <4 x i16> %in, <4 x i16> undef, <4 x i32> <i32 undef, i32 undef, i32 1, i32 1>
1176 %add = add <4 x i16> %shuffle, <i16 10, i16 3, i16 0, i16 0>
1180 define <4 x i16> @add_constant_mask_undef_2(<4 x i16> %in) {
1181 ; CHECK-LABEL: @add_constant_mask_undef_2(
1182 ; CHECK-NEXT: entry:
1183 ; CHECK-NEXT: [[TMP0:%.*]] = add <4 x i16> [[IN:%.*]], <i16 poison, i16 0, i16 3, i16 poison>
1184 ; CHECK-NEXT: [[ADD:%.*]] = shufflevector <4 x i16> [[TMP0]], <4 x i16> poison, <4 x i32> <i32 poison, i32 2, i32 1, i32 1>
1185 ; CHECK-NEXT: ret <4 x i16> [[ADD]]
1188 %shuffle = shufflevector <4 x i16> %in, <4 x i16> undef, <4 x i32> <i32 undef, i32 2, i32 1, i32 1>
1189 %add = add <4 x i16> %shuffle, <i16 10, i16 3, i16 0, i16 0>
1193 define <4 x i16> @sub_constant_mask_undef(<4 x i16> %in) {
1194 ; CHECK-LABEL: @sub_constant_mask_undef(
1195 ; CHECK-NEXT: entry:
1196 ; CHECK-NEXT: [[SUB:%.*]] = shufflevector <4 x i16> [[IN:%.*]], <4 x i16> poison, <4 x i32> <i32 poison, i32 poison, i32 1, i32 1>
1197 ; CHECK-NEXT: ret <4 x i16> [[SUB]]
1200 %shuffle = shufflevector <4 x i16> %in, <4 x i16> undef, <4 x i32> <i32 undef, i32 undef, i32 1, i32 1>
1201 %sub = sub <4 x i16> %shuffle, <i16 10, i16 3, i16 0, i16 0>
1205 define <4 x i16> @sub_constant_mask_undef_2(<4 x i16> %in) {
1206 ; CHECK-LABEL: @sub_constant_mask_undef_2(
1207 ; CHECK-NEXT: entry:
1208 ; CHECK-NEXT: [[TMP0:%.*]] = add <4 x i16> [[IN:%.*]], <i16 poison, i16 0, i16 -10, i16 poison>
1209 ; CHECK-NEXT: [[SUB:%.*]] = shufflevector <4 x i16> [[TMP0]], <4 x i16> poison, <4 x i32> <i32 1, i32 1, i32 2, i32 poison>
1210 ; CHECK-NEXT: ret <4 x i16> [[SUB]]
1213 %shuffle = shufflevector <4 x i16> %in, <4 x i16> undef, <4 x i32> <i32 1, i32 1, i32 2, i32 undef>
1214 %sub = sub <4 x i16> %shuffle, <i16 0, i16 0, i16 10, i16 99>
1218 define <2 x i32> @or_splat_constant(<2 x i32> %x) {
1219 ; CHECK-LABEL: @or_splat_constant(
1220 ; CHECK-NEXT: [[TMP1:%.*]] = or <2 x i32> [[X:%.*]], <i32 42, i32 poison>
1221 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
1222 ; CHECK-NEXT: ret <2 x i32> [[R]]
1224 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
1225 %r = or <2 x i32> %splat, <i32 42, i32 42>
1229 define <2 x i32> @xor_splat_constant(<2 x i32> %x) {
1230 ; CHECK-LABEL: @xor_splat_constant(
1231 ; CHECK-NEXT: [[TMP1:%.*]] = xor <2 x i32> [[X:%.*]], <i32 42, i32 poison>
1232 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
1233 ; CHECK-NEXT: ret <2 x i32> [[R]]
1235 %splat = shufflevector <2 x i32> %x, <2 x i32> undef, <2 x i32> zeroinitializer
1236 %r = xor <2 x i32> %splat, <i32 42, i32 42>
1240 define <2 x float> @fadd_splat_constant(<2 x float> %x) {
1241 ; CHECK-LABEL: @fadd_splat_constant(
1242 ; CHECK-NEXT: [[TMP1:%.*]] = fadd <2 x float> [[X:%.*]], <float 4.200000e+01, float poison>
1243 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[TMP1]], <2 x float> poison, <2 x i32> zeroinitializer
1244 ; CHECK-NEXT: ret <2 x float> [[R]]
1246 %splat = shufflevector <2 x float> %x, <2 x float> undef, <2 x i32> zeroinitializer
1247 %r = fadd <2 x float> %splat, <float 42.0, float 42.0>
1251 define <2 x float> @fsub_splat_constant0(<2 x float> %x) {
1252 ; CHECK-LABEL: @fsub_splat_constant0(
1253 ; CHECK-NEXT: [[TMP1:%.*]] = fsub <2 x float> <float 4.200000e+01, float poison>, [[X:%.*]]
1254 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[TMP1]], <2 x float> poison, <2 x i32> zeroinitializer
1255 ; CHECK-NEXT: ret <2 x float> [[R]]
1257 %splat = shufflevector <2 x float> %x, <2 x float> undef, <2 x i32> zeroinitializer
1258 %r = fsub <2 x float> <float 42.0, float 42.0>, %splat
1262 define <2 x float> @fsub_splat_constant1(<2 x float> %x) {
1263 ; CHECK-LABEL: @fsub_splat_constant1(
1264 ; CHECK-NEXT: [[TMP1:%.*]] = fadd <2 x float> [[X:%.*]], <float -4.200000e+01, float poison>
1265 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[TMP1]], <2 x float> poison, <2 x i32> zeroinitializer
1266 ; CHECK-NEXT: ret <2 x float> [[R]]
1268 %splat = shufflevector <2 x float> %x, <2 x float> undef, <2 x i32> zeroinitializer
1269 %r = fsub <2 x float> %splat, <float 42.0, float 42.0>
1273 define <2 x float> @fneg(<2 x float> %x) {
1274 ; CHECK-LABEL: @fneg(
1275 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <2 x float> [[X:%.*]], <2 x float> poison, <2 x i32> zeroinitializer
1276 ; CHECK-NEXT: [[R:%.*]] = fneg <2 x float> [[TMP1]]
1277 ; CHECK-NEXT: ret <2 x float> [[R]]
1279 %splat = shufflevector <2 x float> %x, <2 x float> undef, <2 x i32> zeroinitializer
1280 %r = fsub <2 x float> <float -0.0, float -0.0>, %splat
1284 define <2 x float> @fneg_not_single_source(<2 x float> %x) {
1285 ; CHECK-LABEL: @fneg_not_single_source(
1286 ; CHECK-NEXT: [[NEG:%.*]] = fneg <2 x float> [[X:%.*]]
1287 ; CHECK-NEXT: [[SPLAT1:%.*]] = insertelement <2 x float> [[NEG]], float undef, i64 1
1288 ; CHECK-NEXT: ret <2 x float> [[SPLAT1]]
1290 %neg = fneg <2 x float> %x
1291 %splat = shufflevector <2 x float> %neg, <2 x float> undef, <2 x i32> <i32 0, i32 2>
1292 ret <2 x float> %splat
1295 define <2 x float> @fmul_splat_constant(<2 x float> %x) {
1296 ; CHECK-LABEL: @fmul_splat_constant(
1297 ; CHECK-NEXT: [[TMP1:%.*]] = fmul <2 x float> [[X:%.*]], <float 4.200000e+01, float poison>
1298 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[TMP1]], <2 x float> poison, <2 x i32> zeroinitializer
1299 ; CHECK-NEXT: ret <2 x float> [[R]]
1301 %splat = shufflevector <2 x float> %x, <2 x float> undef, <2 x i32> zeroinitializer
1302 %r = fmul <2 x float> %splat, <float 42.0, float 42.0>
1306 define <2 x float> @fdiv_splat_constant0(<2 x float> %x) {
1307 ; CHECK-LABEL: @fdiv_splat_constant0(
1308 ; CHECK-NEXT: [[TMP1:%.*]] = fdiv <2 x float> <float 4.200000e+01, float poison>, [[X:%.*]]
1309 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[TMP1]], <2 x float> poison, <2 x i32> zeroinitializer
1310 ; CHECK-NEXT: ret <2 x float> [[R]]
1312 %splat = shufflevector <2 x float> %x, <2 x float> undef, <2 x i32> zeroinitializer
1313 %r = fdiv <2 x float> <float 42.0, float 42.0>, %splat
1317 define <2 x float> @fdiv_splat_constant1(<2 x float> %x) {
1318 ; CHECK-LABEL: @fdiv_splat_constant1(
1319 ; CHECK-NEXT: [[TMP1:%.*]] = fdiv <2 x float> [[X:%.*]], <float 4.200000e+01, float poison>
1320 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[TMP1]], <2 x float> poison, <2 x i32> zeroinitializer
1321 ; CHECK-NEXT: ret <2 x float> [[R]]
1323 %splat = shufflevector <2 x float> %x, <2 x float> undef, <2 x i32> zeroinitializer
1324 %r = fdiv <2 x float> %splat, <float 42.0, float 42.0>
1328 define <2 x float> @frem_splat_constant0(<2 x float> %x) {
1329 ; CHECK-LABEL: @frem_splat_constant0(
1330 ; CHECK-NEXT: [[TMP1:%.*]] = frem <2 x float> <float 4.200000e+01, float poison>, [[X:%.*]]
1331 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[TMP1]], <2 x float> poison, <2 x i32> zeroinitializer
1332 ; CHECK-NEXT: ret <2 x float> [[R]]
1334 %splat = shufflevector <2 x float> %x, <2 x float> undef, <2 x i32> zeroinitializer
1335 %r = frem <2 x float> <float 42.0, float 42.0>, %splat
1339 define <2 x float> @frem_splat_constant1(<2 x float> %x) {
1340 ; CHECK-LABEL: @frem_splat_constant1(
1341 ; CHECK-NEXT: [[TMP1:%.*]] = frem <2 x float> [[X:%.*]], <float 4.200000e+01, float poison>
1342 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[TMP1]], <2 x float> poison, <2 x i32> zeroinitializer
1343 ; CHECK-NEXT: ret <2 x float> [[R]]
1345 %splat = shufflevector <2 x float> %x, <2 x float> undef, <2 x i32> zeroinitializer
1346 %r = frem <2 x float> %splat, <float 42.0, float 42.0>
1350 ; Equivalent shuffle masks, but only one is a narrowing op.
1352 define <2 x i1> @PR40734(<1 x i1> %x, <4 x i1> %y) {
1353 ; CHECK-LABEL: @PR40734(
1354 ; CHECK-NEXT: [[WIDEN:%.*]] = shufflevector <1 x i1> zeroinitializer, <1 x i1> [[X:%.*]], <2 x i32> <i32 0, i32 1>
1355 ; CHECK-NEXT: [[NARROW:%.*]] = shufflevector <4 x i1> [[Y:%.*]], <4 x i1> poison, <2 x i32> <i32 0, i32 1>
1356 ; CHECK-NEXT: [[R:%.*]] = and <2 x i1> [[WIDEN]], [[NARROW]]
1357 ; CHECK-NEXT: ret <2 x i1> [[R]]
1359 %widen = shufflevector <1 x i1> zeroinitializer, <1 x i1> %x, <2 x i32> <i32 0, i32 1>
1360 %narrow = shufflevector <4 x i1> %y, <4 x i1> undef, <2 x i32> <i32 0, i32 1>
1361 %r = and <2 x i1> %widen, %narrow
1365 ; Negative test - do not transform non-power-of-2 unless we know the backend handles these sequences identically.
1367 define <7 x i8> @insert_subvector_shuffles(<3 x i8> %x, <3 x i8> %y) {
1368 ; CHECK-LABEL: @insert_subvector_shuffles(
1369 ; CHECK-NEXT: [[S1:%.*]] = shufflevector <3 x i8> [[X:%.*]], <3 x i8> poison, <7 x i32> <i32 0, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
1370 ; CHECK-NEXT: [[S2:%.*]] = shufflevector <3 x i8> [[Y:%.*]], <3 x i8> poison, <7 x i32> <i32 poison, i32 1, i32 2, i32 poison, i32 poison, i32 poison, i32 poison>
1371 ; CHECK-NEXT: [[S3:%.*]] = shufflevector <7 x i8> [[S1]], <7 x i8> [[S2]], <7 x i32> <i32 0, i32 8, i32 1, i32 poison, i32 8, i32 1, i32 9>
1372 ; CHECK-NEXT: ret <7 x i8> [[S3]]
1374 %s1 = shufflevector <3 x i8> %x, <3 x i8> undef, <7 x i32> <i32 0, i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
1375 %s2 = shufflevector <3 x i8> %y, <3 x i8> undef, <7 x i32> <i32 undef, i32 1, i32 2, i32 undef, i32 undef, i32 undef, i32 undef>
1376 %s3 = shufflevector <7 x i8> %s1, <7 x i8> %s2, <7 x i32> <i32 0, i32 8, i32 1, i32 undef, i32 8, i32 1, i32 9>
1380 define <8 x i8> @insert_subvector_shuffles_pow2elts(<2 x i8> %x, <2 x i8> %y) {
1381 ; CHECK-LABEL: @insert_subvector_shuffles_pow2elts(
1382 ; CHECK-NEXT: [[S3:%.*]] = shufflevector <2 x i8> [[X:%.*]], <2 x i8> [[Y:%.*]], <8 x i32> <i32 0, i32 2, i32 1, i32 poison, i32 2, i32 1, i32 3, i32 0>
1383 ; CHECK-NEXT: ret <8 x i8> [[S3]]
1385 %s1 = shufflevector <2 x i8> %x, <2 x i8> undef, <8 x i32> <i32 0, i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
1386 %s2 = shufflevector <2 x i8> %y, <2 x i8> undef, <8 x i32> <i32 0, i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
1387 %s3 = shufflevector <8 x i8> %s1, <8 x i8> %s2, <8 x i32> <i32 0, i32 8, i32 1, i32 undef, i32 8, i32 1, i32 9, i32 0>
1391 ; The last shuffle may change the vector type.
1392 ; Negative test - do not transform non-power-of-2 unless we know the backend handles these sequences identically.
1394 define <2 x i8> @insert_subvector_shuffles_narrowing(<3 x i8> %x, <3 x i8> %y) {
1395 ; CHECK-LABEL: @insert_subvector_shuffles_narrowing(
1396 ; CHECK-NEXT: [[S1:%.*]] = shufflevector <3 x i8> [[X:%.*]], <3 x i8> poison, <7 x i32> <i32 0, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
1397 ; CHECK-NEXT: [[S2:%.*]] = shufflevector <3 x i8> [[Y:%.*]], <3 x i8> poison, <7 x i32> <i32 poison, i32 1, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
1398 ; CHECK-NEXT: [[S3:%.*]] = shufflevector <7 x i8> [[S1]], <7 x i8> [[S2]], <2 x i32> <i32 0, i32 8>
1399 ; CHECK-NEXT: ret <2 x i8> [[S3]]
1401 %s1 = shufflevector <3 x i8> %x, <3 x i8> undef, <7 x i32> <i32 0, i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
1402 %s2 = shufflevector <3 x i8> %y, <3 x i8> undef, <7 x i32> <i32 undef, i32 1, i32 2, i32 undef, i32 undef, i32 undef, i32 undef>
1403 %s3 = shufflevector <7 x i8> %s1, <7 x i8> %s2, <2 x i32> <i32 0, i32 8>
1407 define <2 x i8> @insert_subvector_shuffles_narrowing_pow2elts(<4 x i8> %x, <4 x i8> %y) {
1408 ; CHECK-LABEL: @insert_subvector_shuffles_narrowing_pow2elts(
1409 ; CHECK-NEXT: [[S3:%.*]] = shufflevector <4 x i8> [[X:%.*]], <4 x i8> [[Y:%.*]], <2 x i32> <i32 0, i32 4>
1410 ; CHECK-NEXT: ret <2 x i8> [[S3]]
1412 %s1 = shufflevector <4 x i8> %x, <4 x i8> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
1413 %s2 = shufflevector <4 x i8> %y, <4 x i8> undef, <8 x i32> <i32 0, i32 1, i32 undef, i32 3, i32 undef, i32 undef, i32 undef, i32 undef>
1414 %s3 = shufflevector <8 x i8> %s1, <8 x i8> %s2, <2 x i32> <i32 0, i32 8>
1418 ; Similar to above, but this reduces to a widen with undefs of 'x'.
1420 define <4 x double> @insert_subvector_shuffles_identity(<2 x double> %x) {
1421 ; CHECK-LABEL: @insert_subvector_shuffles_identity(
1422 ; CHECK-NEXT: [[S3:%.*]] = shufflevector <2 x double> [[X:%.*]], <2 x double> poison, <4 x i32> <i32 0, i32 1, i32 poison, i32 poison>
1423 ; CHECK-NEXT: ret <4 x double> [[S3]]
1425 %s1 = shufflevector <2 x double> %x, <2 x double> undef, <4 x i32> <i32 undef, i32 1, i32 undef, i32 undef>
1426 %s2 = shufflevector <2 x double> %x, <2 x double> undef, <4 x i32> <i32 0, i32 undef, i32 undef, i32 undef>
1427 %s3 = shufflevector <4 x double> %s2, <4 x double> %s1, <4 x i32> <i32 0, i32 5, i32 undef, i32 undef>
1428 ret <4 x double> %s3
1431 ; Negative test - not identity with padding (although this could be folded with better analysis).
1433 define <4 x double> @not_insert_subvector_shuffle(<2 x double> %x) {
1434 ; CHECK-LABEL: @not_insert_subvector_shuffle(
1435 ; CHECK-NEXT: [[S1:%.*]] = shufflevector <2 x double> [[X:%.*]], <2 x double> poison, <4 x i32> <i32 poison, i32 1, i32 poison, i32 1>
1436 ; CHECK-NEXT: [[S2:%.*]] = shufflevector <2 x double> [[X]], <2 x double> poison, <4 x i32> <i32 0, i32 poison, i32 poison, i32 poison>
1437 ; CHECK-NEXT: [[S3:%.*]] = shufflevector <4 x double> [[S2]], <4 x double> [[S1]], <4 x i32> <i32 0, i32 5, i32 7, i32 poison>
1438 ; CHECK-NEXT: ret <4 x double> [[S3]]
1440 %s1 = shufflevector <2 x double> %x, <2 x double> undef, <4 x i32> <i32 undef, i32 1, i32 undef, i32 1>
1441 %s2 = shufflevector <2 x double> %x, <2 x double> undef, <4 x i32> <i32 0, i32 undef, i32 undef, i32 undef>
1442 %s3 = shufflevector <4 x double> %s2, <4 x double> %s1, <4 x i32> <i32 0, i32 5, i32 7, i32 undef>
1443 ret <4 x double> %s3
1446 ; Negative test - operands are not the same size (although this could be partly folded with better analysis).
1448 define <4 x double> @not_insert_subvector_shuffles_with_same_size(<2 x double> %x, <3 x double> %y) {
1449 ; CHECK-LABEL: @not_insert_subvector_shuffles_with_same_size(
1450 ; CHECK-NEXT: [[S1:%.*]] = shufflevector <2 x double> [[X:%.*]], <2 x double> poison, <4 x i32> <i32 poison, i32 1, i32 poison, i32 poison>
1451 ; CHECK-NEXT: [[S2:%.*]] = shufflevector <3 x double> [[Y:%.*]], <3 x double> poison, <4 x i32> <i32 0, i32 poison, i32 poison, i32 poison>
1452 ; CHECK-NEXT: [[S3:%.*]] = shufflevector <4 x double> [[S2]], <4 x double> [[S1]], <4 x i32> <i32 0, i32 5, i32 poison, i32 poison>
1453 ; CHECK-NEXT: ret <4 x double> [[S3]]
1455 %s1 = shufflevector <2 x double> %x, <2 x double> undef, <4 x i32> <i32 undef, i32 1, i32 undef, i32 undef>
1456 %s2 = shufflevector <3 x double> %y, <3 x double> undef, <4 x i32> <i32 0, i32 undef, i32 undef, i32 undef>
1457 %s3 = shufflevector <4 x double> %s2, <4 x double> %s1, <4 x i32> <i32 0, i32 5, i32 undef, i32 undef>
1458 ret <4 x double> %s3
1461 ; Demanded vector elements may not be able to simplify a shuffle mask
1462 ; before we try to narrow it. This used to crash.
1464 define <4 x float> @insert_subvector_crash_invalid_mask_elt(<2 x float> %x, ptr %p) {
1465 ; CHECK-LABEL: @insert_subvector_crash_invalid_mask_elt(
1466 ; CHECK-NEXT: [[WIDEN:%.*]] = shufflevector <2 x float> [[X:%.*]], <2 x float> poison, <4 x i32> <i32 0, i32 1, i32 poison, i32 poison>
1467 ; CHECK-NEXT: [[I:%.*]] = shufflevector <2 x float> [[X]], <2 x float> poison, <4 x i32> <i32 0, i32 1, i32 poison, i32 poison>
1468 ; CHECK-NEXT: store <4 x float> [[I]], ptr [[P:%.*]], align 16
1469 ; CHECK-NEXT: ret <4 x float> [[WIDEN]]
1471 %widen = shufflevector <2 x float> %x, <2 x float> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
1472 %ext2 = extractelement <2 x float> %x, i32 0
1473 %I = insertelement <4 x float> %widen, float %ext2, i16 0
1474 store <4 x float> %I, ptr %p
1475 ret <4 x float> %widen
1478 define <4 x i32> @splat_assoc_add(<4 x i32> %x, <4 x i32> %y) {
1479 ; CHECK-LABEL: @splat_assoc_add(
1480 ; CHECK-NEXT: [[TMP1:%.*]] = add <4 x i32> [[X:%.*]], <i32 317426, i32 poison, i32 poison, i32 poison>
1481 ; CHECK-NEXT: [[TMP2:%.*]] = shufflevector <4 x i32> [[TMP1]], <4 x i32> poison, <4 x i32> zeroinitializer
1482 ; CHECK-NEXT: [[R:%.*]] = add <4 x i32> [[TMP2]], [[Y:%.*]]
1483 ; CHECK-NEXT: ret <4 x i32> [[R]]
1485 %splatx = shufflevector <4 x i32> %x, <4 x i32> undef, <4 x i32> zeroinitializer
1486 %a = add <4 x i32> %y, <i32 317426, i32 317426, i32 317426, i32 317426>
1487 %r = add <4 x i32> %splatx, %a
1491 define <vscale x 4 x i32> @vsplat_assoc_add(<vscale x 4 x i32> %x, <vscale x 4 x i32> %y) {
1492 ; CHECK-LABEL: @vsplat_assoc_add(
1493 ; CHECK-NEXT: [[TMP1:%.*]] = add <vscale x 4 x i32> [[X:%.*]], splat (i32 317426)
1494 ; CHECK-NEXT: [[TMP2:%.*]] = shufflevector <vscale x 4 x i32> [[TMP1]], <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer
1495 ; CHECK-NEXT: [[R:%.*]] = add <vscale x 4 x i32> [[TMP2]], [[Y:%.*]]
1496 ; CHECK-NEXT: ret <vscale x 4 x i32> [[R]]
1499 %splatx = shufflevector <vscale x 4 x i32> %x, <vscale x 4 x i32> undef, <vscale x 4 x i32> zeroinitializer
1500 %a = add <vscale x 4 x i32> %y, splat (i32 317426)
1501 %r = add <vscale x 4 x i32> %splatx, %a
1502 ret <vscale x 4 x i32> %r
1505 ; Undefs in splat mask are replaced with defined splat index
1507 define <4 x i32> @splat_assoc_add_undef_mask_elts(<4 x i32> %x, <4 x i32> %y) {
1508 ; CHECK-LABEL: @splat_assoc_add_undef_mask_elts(
1509 ; CHECK-NEXT: [[TMP1:%.*]] = add <4 x i32> [[X:%.*]], <i32 42, i32 poison, i32 poison, i32 poison>
1510 ; CHECK-NEXT: [[TMP2:%.*]] = shufflevector <4 x i32> [[TMP1]], <4 x i32> poison, <4 x i32> zeroinitializer
1511 ; CHECK-NEXT: [[R:%.*]] = add <4 x i32> [[TMP2]], [[Y:%.*]]
1512 ; CHECK-NEXT: ret <4 x i32> [[R]]
1514 %splatx = shufflevector <4 x i32> %x, <4 x i32> undef, <4 x i32> <i32 0, i32 0, i32 undef, i32 undef>
1515 %a = add <4 x i32> %y, <i32 42, i32 42, i32 42, i32 42>
1516 %r = add <4 x i32> %splatx, %a
1520 ; Undefs in splat mask are replaced with defined splat index
1522 define <4 x i32> @splat_assoc_add_undef_mask_elt_at_splat_index(<4 x i32> %x, <4 x i32> %y) {
1523 ; CHECK-LABEL: @splat_assoc_add_undef_mask_elt_at_splat_index(
1524 ; CHECK-NEXT: [[TMP1:%.*]] = add <4 x i32> [[X:%.*]], <i32 42, i32 poison, i32 poison, i32 poison>
1525 ; CHECK-NEXT: [[TMP2:%.*]] = shufflevector <4 x i32> [[TMP1]], <4 x i32> poison, <4 x i32> zeroinitializer
1526 ; CHECK-NEXT: [[R:%.*]] = add <4 x i32> [[TMP2]], [[Y:%.*]]
1527 ; CHECK-NEXT: ret <4 x i32> [[R]]
1529 %splatx = shufflevector <4 x i32> %x, <4 x i32> undef, <4 x i32> <i32 undef, i32 0, i32 0, i32 0>
1530 %a = add <4 x i32> %y, <i32 42, i32 42, i32 42, i32 42>
1531 %r = add <4 x i32> %splatx, %a
1535 define <4 x i32> @splat_assoc_add_undef_constant_elts(<4 x i32> %x, <4 x i32> %y) {
1536 ; CHECK-LABEL: @splat_assoc_add_undef_constant_elts(
1537 ; CHECK-NEXT: [[SPLATX:%.*]] = shufflevector <4 x i32> [[X:%.*]], <4 x i32> poison, <4 x i32> zeroinitializer
1538 ; CHECK-NEXT: [[A:%.*]] = add <4 x i32> [[Y:%.*]], <i32 42, i32 undef, i32 undef, i32 42>
1539 ; CHECK-NEXT: [[R:%.*]] = add <4 x i32> [[SPLATX]], [[A]]
1540 ; CHECK-NEXT: ret <4 x i32> [[R]]
1542 %splatx = shufflevector <4 x i32> %x, <4 x i32> undef, <4 x i32> zeroinitializer
1543 %a = add <4 x i32> %y, <i32 42, i32 undef, i32 undef, i32 42>
1544 %r = add <4 x i32> %splatx, %a
1548 define <4 x i32> @splat_assoc_add_undef_constant_elt_at_splat_index(<4 x i32> %x, <4 x i32> %y) {
1549 ; CHECK-LABEL: @splat_assoc_add_undef_constant_elt_at_splat_index(
1550 ; CHECK-NEXT: [[SPLATX:%.*]] = shufflevector <4 x i32> [[X:%.*]], <4 x i32> poison, <4 x i32> zeroinitializer
1551 ; CHECK-NEXT: [[A:%.*]] = add <4 x i32> [[Y:%.*]], <i32 undef, i32 42, i32 undef, i32 42>
1552 ; CHECK-NEXT: [[R:%.*]] = add <4 x i32> [[SPLATX]], [[A]]
1553 ; CHECK-NEXT: ret <4 x i32> [[R]]
1555 %splatx = shufflevector <4 x i32> %x, <4 x i32> undef, <4 x i32> zeroinitializer
1556 %a = add <4 x i32> %y, <i32 undef, i32 42, i32 undef, i32 42>
1557 %r = add <4 x i32> %splatx, %a
1561 define <4 x i32> @splat_assoc_add_undef_mask_elts_undef_constant_elts(<4 x i32> %x, <4 x i32> %y) {
1562 ; CHECK-LABEL: @splat_assoc_add_undef_mask_elts_undef_constant_elts(
1563 ; CHECK-NEXT: [[SPLATX:%.*]] = shufflevector <4 x i32> [[X:%.*]], <4 x i32> poison, <4 x i32> <i32 0, i32 poison, i32 0, i32 poison>
1564 ; CHECK-NEXT: [[A:%.*]] = add <4 x i32> [[Y:%.*]], <i32 42, i32 undef, i32 undef, i32 42>
1565 ; CHECK-NEXT: [[R:%.*]] = add <4 x i32> [[SPLATX]], [[A]]
1566 ; CHECK-NEXT: ret <4 x i32> [[R]]
1568 %splatx = shufflevector <4 x i32> %x, <4 x i32> undef, <4 x i32> <i32 0, i32 undef, i32 0, i32 undef>
1569 %a = add <4 x i32> %y, <i32 42, i32 undef, i32 undef, i32 42>
1570 %r = add <4 x i32> %splatx, %a
1574 define <4 x i32> @splat_assoc_add_undef_mask_elt_at_splat_index_undef_constant_elts(<4 x i32> %x, <4 x i32> %y) {
1575 ; CHECK-LABEL: @splat_assoc_add_undef_mask_elt_at_splat_index_undef_constant_elts(
1576 ; CHECK-NEXT: [[SPLATX:%.*]] = shufflevector <4 x i32> [[X:%.*]], <4 x i32> poison, <4 x i32> <i32 poison, i32 0, i32 0, i32 0>
1577 ; CHECK-NEXT: [[A:%.*]] = add <4 x i32> [[Y:%.*]], <i32 42, i32 undef, i32 undef, i32 42>
1578 ; CHECK-NEXT: [[R:%.*]] = add <4 x i32> [[SPLATX]], [[A]]
1579 ; CHECK-NEXT: ret <4 x i32> [[R]]
1581 %splatx = shufflevector <4 x i32> %x, <4 x i32> undef, <4 x i32> <i32 undef, i32 0, i32 0, i32 0>
1582 %a = add <4 x i32> %y, <i32 42, i32 undef, i32 undef, i32 42>
1583 %r = add <4 x i32> %splatx, %a
1587 define <4 x i32> @splat_assoc_add_undef_mask_elt_at_splat_index_undef_constant_elt_at_splat_index(<4 x i32> %x, <4 x i32> %y) {
1588 ; CHECK-LABEL: @splat_assoc_add_undef_mask_elt_at_splat_index_undef_constant_elt_at_splat_index(
1589 ; CHECK-NEXT: [[SPLATX:%.*]] = shufflevector <4 x i32> [[X:%.*]], <4 x i32> poison, <4 x i32> <i32 poison, i32 0, i32 0, i32 0>
1590 ; CHECK-NEXT: [[A:%.*]] = add <4 x i32> [[Y:%.*]], <i32 undef, i32 42, i32 undef, i32 42>
1591 ; CHECK-NEXT: [[R:%.*]] = add <4 x i32> [[SPLATX]], [[A]]
1592 ; CHECK-NEXT: ret <4 x i32> [[R]]
1594 %splatx = shufflevector <4 x i32> %x, <4 x i32> undef, <4 x i32> <i32 undef, i32 0, i32 0, i32 0>
1595 %a = add <4 x i32> %y, <i32 undef, i32 42, i32 undef, i32 42>
1596 %r = add <4 x i32> %splatx, %a
1600 ; Non-zero splat index; commute operands; FMF intersect
1602 define <2 x float> @splat_assoc_fmul(<2 x float> %x, <2 x float> %y) {
1603 ; CHECK-LABEL: @splat_assoc_fmul(
1604 ; CHECK-NEXT: [[TMP1:%.*]] = fmul reassoc nsz <2 x float> [[X:%.*]], <float poison, float 3.000000e+00>
1605 ; CHECK-NEXT: [[TMP2:%.*]] = shufflevector <2 x float> [[TMP1]], <2 x float> poison, <2 x i32> <i32 1, i32 1>
1606 ; CHECK-NEXT: [[R:%.*]] = fmul reassoc nsz <2 x float> [[TMP2]], [[Y:%.*]]
1607 ; CHECK-NEXT: ret <2 x float> [[R]]
1609 %splatx = shufflevector <2 x float> %x, <2 x float> undef, <2 x i32> <i32 1, i32 1>
1610 %a = fmul reassoc nsz <2 x float> %y, <float 3.0, float 3.0>
1611 %r = fmul reassoc nsz nnan <2 x float> %a, %splatx
1615 ; Two splat shuffles; drop poison-generating flags
1617 define <3 x i8> @splat_assoc_mul(<3 x i8> %x, <3 x i8> %y, <3 x i8> %z) {
1618 ; CHECK-LABEL: @splat_assoc_mul(
1619 ; CHECK-NEXT: [[TMP1:%.*]] = mul <3 x i8> [[X:%.*]], [[Z:%.*]]
1620 ; CHECK-NEXT: [[TMP2:%.*]] = shufflevector <3 x i8> [[TMP1]], <3 x i8> poison, <3 x i32> <i32 2, i32 2, i32 2>
1621 ; CHECK-NEXT: [[R:%.*]] = mul <3 x i8> [[TMP2]], [[Y:%.*]]
1622 ; CHECK-NEXT: ret <3 x i8> [[R]]
1624 %splatx = shufflevector <3 x i8> %x, <3 x i8> undef, <3 x i32> <i32 2, i32 2, i32 2>
1625 %splatz = shufflevector <3 x i8> %z, <3 x i8> undef, <3 x i32> <i32 2, i32 2, i32 2>
1626 %a = mul nsw <3 x i8> %y, %splatz
1627 %r = mul <3 x i8> %a, %splatx
1631 define <3 x i8> @splat_assoc_mul_undef_elt1(<3 x i8> %x, <3 x i8> %y, <3 x i8> %z) {
1632 ; CHECK-LABEL: @splat_assoc_mul_undef_elt1(
1633 ; CHECK-NEXT: [[TMP1:%.*]] = mul <3 x i8> [[X:%.*]], [[Z:%.*]]
1634 ; CHECK-NEXT: [[TMP2:%.*]] = shufflevector <3 x i8> [[TMP1]], <3 x i8> poison, <3 x i32> <i32 2, i32 2, i32 2>
1635 ; CHECK-NEXT: [[R:%.*]] = mul <3 x i8> [[TMP2]], [[Y:%.*]]
1636 ; CHECK-NEXT: ret <3 x i8> [[R]]
1638 %splatx = shufflevector <3 x i8> %x, <3 x i8> undef, <3 x i32> <i32 undef, i32 2, i32 2>
1639 %splatz = shufflevector <3 x i8> %z, <3 x i8> undef, <3 x i32> <i32 2, i32 2, i32 2>
1640 %a = mul nsw <3 x i8> %y, %splatz
1641 %r = mul nsw nuw <3 x i8> %a, %splatx
1645 define <3 x i8> @splat_assoc_mul_undef_elt2(<3 x i8> %x, <3 x i8> %y, <3 x i8> %z) {
1646 ; CHECK-LABEL: @splat_assoc_mul_undef_elt2(
1647 ; CHECK-NEXT: [[SPLATX:%.*]] = shufflevector <3 x i8> [[X:%.*]], <3 x i8> poison, <3 x i32> <i32 2, i32 2, i32 2>
1648 ; CHECK-NEXT: [[SPLATZ:%.*]] = shufflevector <3 x i8> [[Z:%.*]], <3 x i8> poison, <3 x i32> <i32 poison, i32 2, i32 2>
1649 ; CHECK-NEXT: [[A:%.*]] = mul nsw <3 x i8> [[Y:%.*]], [[SPLATZ]]
1650 ; CHECK-NEXT: [[R:%.*]] = mul nuw nsw <3 x i8> [[A]], [[SPLATX]]
1651 ; CHECK-NEXT: ret <3 x i8> [[R]]
1653 %splatx = shufflevector <3 x i8> %x, <3 x i8> undef, <3 x i32> <i32 2, i32 2, i32 2>
1654 %splatz = shufflevector <3 x i8> %z, <3 x i8> undef, <3 x i32> <i32 undef, i32 2, i32 2>
1655 %a = mul nsw <3 x i8> %y, %splatz
1656 %r = mul nsw nuw <3 x i8> %a, %splatx
1660 define <3 x i8> @splat_assoc_mul_undef_elt_at_splat_index1(<3 x i8> %x, <3 x i8> %y, <3 x i8> %z) {
1661 ; CHECK-LABEL: @splat_assoc_mul_undef_elt_at_splat_index1(
1662 ; CHECK-NEXT: [[TMP1:%.*]] = mul <3 x i8> [[X:%.*]], [[Z:%.*]]
1663 ; CHECK-NEXT: [[TMP2:%.*]] = shufflevector <3 x i8> [[TMP1]], <3 x i8> poison, <3 x i32> <i32 2, i32 2, i32 2>
1664 ; CHECK-NEXT: [[R:%.*]] = mul <3 x i8> [[TMP2]], [[Y:%.*]]
1665 ; CHECK-NEXT: ret <3 x i8> [[R]]
1667 %splatx = shufflevector <3 x i8> %x, <3 x i8> undef, <3 x i32> <i32 2, i32 2, i32 undef>
1668 %splatz = shufflevector <3 x i8> %z, <3 x i8> undef, <3 x i32> <i32 2, i32 2, i32 2>
1669 %a = mul nsw <3 x i8> %y, %splatz
1670 %r = mul nsw nuw <3 x i8> %a, %splatx
1674 define <3 x i8> @splat_assoc_mul_undef_elt_at_splat_index2(<3 x i8> %x, <3 x i8> %y, <3 x i8> %z) {
1675 ; CHECK-LABEL: @splat_assoc_mul_undef_elt_at_splat_index2(
1676 ; CHECK-NEXT: [[SPLATX:%.*]] = shufflevector <3 x i8> [[X:%.*]], <3 x i8> poison, <3 x i32> <i32 2, i32 2, i32 2>
1677 ; CHECK-NEXT: [[SPLATZ:%.*]] = shufflevector <3 x i8> [[Z:%.*]], <3 x i8> poison, <3 x i32> <i32 2, i32 2, i32 poison>
1678 ; CHECK-NEXT: [[A:%.*]] = mul nsw <3 x i8> [[Y:%.*]], [[SPLATZ]]
1679 ; CHECK-NEXT: [[R:%.*]] = mul nuw nsw <3 x i8> [[A]], [[SPLATX]]
1680 ; CHECK-NEXT: ret <3 x i8> [[R]]
1682 %splatx = shufflevector <3 x i8> %x, <3 x i8> undef, <3 x i32> <i32 2, i32 2, i32 2>
1683 %splatz = shufflevector <3 x i8> %z, <3 x i8> undef, <3 x i32> <i32 2, i32 2, i32 undef>
1684 %a = mul nsw <3 x i8> %y, %splatz
1685 %r = mul nsw nuw <3 x i8> %a, %splatx
1689 ; Negative test - mismatched splat elements
1691 define <3 x i8> @splat_assoc_or(<3 x i8> %x, <3 x i8> %y, <3 x i8> %z) {
1692 ; CHECK-LABEL: @splat_assoc_or(
1693 ; CHECK-NEXT: [[SPLATX:%.*]] = shufflevector <3 x i8> [[X:%.*]], <3 x i8> poison, <3 x i32> <i32 1, i32 1, i32 1>
1694 ; CHECK-NEXT: [[SPLATZ:%.*]] = shufflevector <3 x i8> [[Z:%.*]], <3 x i8> poison, <3 x i32> <i32 2, i32 2, i32 2>
1695 ; CHECK-NEXT: [[A:%.*]] = or <3 x i8> [[Y:%.*]], [[SPLATZ]]
1696 ; CHECK-NEXT: [[R:%.*]] = or <3 x i8> [[A]], [[SPLATX]]
1697 ; CHECK-NEXT: ret <3 x i8> [[R]]
1699 %splatx = shufflevector <3 x i8> %x, <3 x i8> undef, <3 x i32> <i32 1, i32 1, i32 1>
1700 %splatz = shufflevector <3 x i8> %z, <3 x i8> undef, <3 x i32> <i32 2, i32 2, i32 2>
1701 %a = or <3 x i8> %y, %splatz
1702 %r = or <3 x i8> %a, %splatx
1706 ; Negative test - not associative
1708 define <2 x float> @splat_assoc_fdiv(<2 x float> %x, <2 x float> %y) {
1709 ; CHECK-LABEL: @splat_assoc_fdiv(
1710 ; CHECK-NEXT: [[SPLATX:%.*]] = shufflevector <2 x float> [[X:%.*]], <2 x float> poison, <2 x i32> zeroinitializer
1711 ; CHECK-NEXT: [[A:%.*]] = fdiv reassoc nsz <2 x float> [[Y:%.*]], splat (float 3.000000e+00)
1712 ; CHECK-NEXT: [[R:%.*]] = fdiv reassoc nsz <2 x float> [[A]], [[SPLATX]]
1713 ; CHECK-NEXT: ret <2 x float> [[R]]
1715 %splatx = shufflevector <2 x float> %x, <2 x float> undef, <2 x i32> zeroinitializer
1716 %a = fdiv reassoc nsz <2 x float> %y, <float 3.0, float 3.0>
1717 %r = fdiv reassoc nsz <2 x float> %a, %splatx
1721 ; Negative test - extra use
1723 define <2 x float> @splat_assoc_fadd(<2 x float> %x, <2 x float> %y) {
1724 ; CHECK-LABEL: @splat_assoc_fadd(
1725 ; CHECK-NEXT: [[SPLATX:%.*]] = shufflevector <2 x float> [[X:%.*]], <2 x float> poison, <2 x i32> <i32 1, i32 1>
1726 ; CHECK-NEXT: [[A:%.*]] = fadd fast <2 x float> [[Y:%.*]], splat (float 3.000000e+00)
1727 ; CHECK-NEXT: call void @use(<2 x float> [[A]])
1728 ; CHECK-NEXT: [[R:%.*]] = fadd fast <2 x float> [[A]], [[SPLATX]]
1729 ; CHECK-NEXT: ret <2 x float> [[R]]
1731 %splatx = shufflevector <2 x float> %x, <2 x float> undef, <2 x i32> <i32 1, i32 1>
1732 %a = fadd fast <2 x float> %y, <float 3.0, float 3.0>
1733 call void @use(<2 x float> %a)
1734 %r = fadd fast <2 x float> %a, %splatx
1738 ; Negative test - narrowing splat
1740 define <3 x i32> @splat_assoc_and(<4 x i32> %x, <3 x i32> %y) {
1741 ; CHECK-LABEL: @splat_assoc_and(
1742 ; CHECK-NEXT: [[SPLATX:%.*]] = shufflevector <4 x i32> [[X:%.*]], <4 x i32> poison, <3 x i32> zeroinitializer
1743 ; CHECK-NEXT: [[A:%.*]] = and <3 x i32> [[Y:%.*]], splat (i32 42)
1744 ; CHECK-NEXT: [[R:%.*]] = and <3 x i32> [[SPLATX]], [[A]]
1745 ; CHECK-NEXT: ret <3 x i32> [[R]]
1747 %splatx = shufflevector <4 x i32> %x, <4 x i32> undef, <3 x i32> zeroinitializer
1748 %a = and <3 x i32> %y, <i32 42, i32 42, i32 42>
1749 %r = and <3 x i32> %splatx, %a
1753 ; Negative test - widening splat
1755 define <5 x i32> @splat_assoc_xor(<4 x i32> %x, <5 x i32> %y) {
1756 ; CHECK-LABEL: @splat_assoc_xor(
1757 ; CHECK-NEXT: [[SPLATX:%.*]] = shufflevector <4 x i32> [[X:%.*]], <4 x i32> poison, <5 x i32> zeroinitializer
1758 ; CHECK-NEXT: [[TMP1:%.*]] = xor <5 x i32> [[Y:%.*]], [[SPLATX]]
1759 ; CHECK-NEXT: [[R:%.*]] = xor <5 x i32> [[TMP1]], splat (i32 42)
1760 ; CHECK-NEXT: ret <5 x i32> [[R]]
1762 %splatx = shufflevector <4 x i32> %x, <4 x i32> undef, <5 x i32> zeroinitializer
1763 %a = xor <5 x i32> %y, <i32 42, i32 42, i32 42, i32 42, i32 42>
1764 %r = xor <5 x i32> %splatx, %a
1768 ; Negative test - opcode mismatch
1770 define <4 x i32> @splat_assoc_add_mul(<4 x i32> %x, <4 x i32> %y) {
1771 ; CHECK-LABEL: @splat_assoc_add_mul(
1772 ; CHECK-NEXT: [[SPLATX:%.*]] = shufflevector <4 x i32> [[X:%.*]], <4 x i32> poison, <4 x i32> zeroinitializer
1773 ; CHECK-NEXT: [[A:%.*]] = add <4 x i32> [[Y:%.*]], splat (i32 42)
1774 ; CHECK-NEXT: [[R:%.*]] = mul <4 x i32> [[SPLATX]], [[A]]
1775 ; CHECK-NEXT: ret <4 x i32> [[R]]
1777 %splatx = shufflevector <4 x i32> %x, <4 x i32> undef, <4 x i32> zeroinitializer
1778 %a = add <4 x i32> %y, <i32 42, i32 42, i32 42, i32 42>
1779 %r = mul <4 x i32> %splatx, %a
1784 ; Do not crash on constant expressions.
1786 define <4 x i32> @PR46872(<4 x i32> %x) {
1787 ; CHECK-LABEL: @PR46872(
1788 ; CHECK-NEXT: [[S:%.*]] = shufflevector <4 x i32> [[X:%.*]], <4 x i32> poison, <4 x i32> <i32 poison, i32 0, i32 1, i32 1>
1789 ; CHECK-NEXT: [[A:%.*]] = and <4 x i32> [[S]], bitcast (<2 x i64> <i64 ptrtoint (ptr @PR46872 to i64), i64 ptrtoint (ptr @PR46872 to i64)> to <4 x i32>)
1790 ; CHECK-NEXT: ret <4 x i32> [[A]]
1792 %s = shufflevector <4 x i32> %x, <4 x i32> undef, <4 x i32> <i32 undef, i32 0, i32 1, i32 1>
1793 %a = and <4 x i32> %s, bitcast (<2 x i64> <i64 ptrtoint (ptr @PR46872 to i64), i64 ptrtoint (ptr @PR46872 to i64)> to <4 x i32>)
1797 define <2 x float> @fabs_unary_shuf(<2 x float> %x) {
1798 ; CHECK-LABEL: @fabs_unary_shuf(
1799 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <2 x float> [[X:%.*]], <2 x float> poison, <2 x i32> <i32 1, i32 0>
1800 ; CHECK-NEXT: [[R:%.*]] = call nnan nsz <2 x float> @llvm.fabs.v2f32(<2 x float> [[TMP1]])
1801 ; CHECK-NEXT: ret <2 x float> [[R]]
1803 %nx = call nsz nnan <2 x float> @llvm.fabs.v2f32(<2 x float> %x)
1804 %r = shufflevector <2 x float> %nx, <2 x float> poison, <2 x i32> <i32 1, i32 0>
1808 define <4 x half> @fabs_unary_shuf_widen(<2 x half> %x) {
1809 ; CHECK-LABEL: @fabs_unary_shuf_widen(
1810 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <2 x half> [[X:%.*]], <2 x half> poison, <4 x i32> <i32 1, i32 0, i32 0, i32 poison>
1811 ; CHECK-NEXT: [[R:%.*]] = call ninf <4 x half> @llvm.fabs.v4f16(<4 x half> [[TMP1]])
1812 ; CHECK-NEXT: ret <4 x half> [[R]]
1814 %nx = call ninf <2 x half> @llvm.fabs.v2f16(<2 x half> %x)
1815 %r = shufflevector <2 x half> %nx, <2 x half> poison, <4 x i32> <i32 1, i32 0, i32 0, i32 poison>
1819 define <2 x double> @fabs_unary_shuf_narrow(<4 x double> %x) {
1820 ; CHECK-LABEL: @fabs_unary_shuf_narrow(
1821 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <4 x double> [[X:%.*]], <4 x double> poison, <2 x i32> <i32 3, i32 0>
1822 ; CHECK-NEXT: [[R:%.*]] = call nsz <2 x double> @llvm.fabs.v2f64(<2 x double> [[TMP1]])
1823 ; CHECK-NEXT: ret <2 x double> [[R]]
1825 %nx = call nsz <4 x double> @llvm.fabs.v4f64(<4 x double> %x)
1826 %r = shufflevector <4 x double> %nx, <4 x double> poison, <2 x i32> <i32 3, i32 0>
1830 ; negative test - extra use prevents canonicalization
1832 define <2 x float> @fabs_unary_shuf_use(<2 x float> %x) {
1833 ; CHECK-LABEL: @fabs_unary_shuf_use(
1834 ; CHECK-NEXT: [[NX:%.*]] = call nsz <2 x float> @llvm.fabs.v2f32(<2 x float> [[X:%.*]])
1835 ; CHECK-NEXT: call void @use(<2 x float> [[NX]])
1836 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[NX]], <2 x float> poison, <2 x i32> <i32 poison, i32 0>
1837 ; CHECK-NEXT: ret <2 x float> [[R]]
1839 %nx = call nsz <2 x float> @llvm.fabs.v2f32(<2 x float> %x)
1840 call void @use(<2 x float> %nx)
1841 %r = shufflevector <2 x float> %nx, <2 x float> poison, <2 x i32> <i32 3, i32 0>
1847 define <4 x float> @fabs_shuf(<4 x float> %x, <4 x float> %y) {
1848 ; CHECK-LABEL: @fabs_shuf(
1849 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <4 x float> [[X:%.*]], <4 x float> [[Y:%.*]], <4 x i32> <i32 0, i32 1, i32 4, i32 5>
1850 ; CHECK-NEXT: [[R:%.*]] = call ninf <4 x float> @llvm.fabs.v4f32(<4 x float> [[TMP1]])
1851 ; CHECK-NEXT: ret <4 x float> [[R]]
1853 %nx = call nsz ninf <4 x float> @llvm.fabs.v4f32(<4 x float> %x)
1854 %ny = call nnan ninf <4 x float> @llvm.fabs.v4f32(<4 x float> %y)
1855 %r = shufflevector <4 x float> %nx, <4 x float> %ny, <4 x i32> <i32 0, i32 1, i32 4, i32 5>
1859 ; length-changing shuffle and extra use are ok
1861 define <4 x float> @fabs_shuf_widen_use1(<2 x float> %x, <2 x float> %y) {
1862 ; CHECK-LABEL: @fabs_shuf_widen_use1(
1863 ; CHECK-NEXT: [[NX:%.*]] = call nnan <2 x float> @llvm.fabs.v2f32(<2 x float> [[X:%.*]])
1864 ; CHECK-NEXT: call void @use(<2 x float> [[NX]])
1865 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <2 x float> [[X]], <2 x float> [[Y:%.*]], <4 x i32> <i32 poison, i32 1, i32 2, i32 3>
1866 ; CHECK-NEXT: [[R:%.*]] = call nnan <4 x float> @llvm.fabs.v4f32(<4 x float> [[TMP1]])
1867 ; CHECK-NEXT: ret <4 x float> [[R]]
1869 %nx = call nnan <2 x float> @llvm.fabs.v2f32(<2 x float> %x)
1870 call void @use(<2 x float> %nx)
1871 %ny = call nnan <2 x float> @llvm.fabs.v2f32(<2 x float> %y)
1872 %r = shufflevector <2 x float> %nx, <2 x float> %ny, <4 x i32> <i32 poison, i32 1, i32 2, i32 3>
1876 ; length-changing shuffle and extra use are ok
1878 define <2 x float> @fabs_shuf_narrow_use2(<4 x float> %x, <4 x float> %y) {
1879 ; CHECK-LABEL: @fabs_shuf_narrow_use2(
1880 ; CHECK-NEXT: [[NY:%.*]] = call nnan nsz <4 x float> @llvm.fabs.v4f32(<4 x float> [[Y:%.*]])
1881 ; CHECK-NEXT: call void @use4(<4 x float> [[NY]])
1882 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <4 x float> [[X:%.*]], <4 x float> [[Y]], <2 x i32> <i32 3, i32 5>
1883 ; CHECK-NEXT: [[R:%.*]] = call nnan nsz <2 x float> @llvm.fabs.v2f32(<2 x float> [[TMP1]])
1884 ; CHECK-NEXT: ret <2 x float> [[R]]
1886 %nx = call nsz nnan <4 x float> @llvm.fabs.v4f32(<4 x float> %x)
1887 %ny = call nsz nnan <4 x float> @llvm.fabs.v4f32(<4 x float> %y)
1888 call void @use4(<4 x float> %ny)
1889 %r = shufflevector <4 x float> %nx, <4 x float> %ny, <2 x i32> <i32 3, i32 5>
1893 ; negative test - too many extra uses
1895 define <2 x float> @fabs_shuf_use3(<2 x float> %x, <2 x float> %y) {
1896 ; CHECK-LABEL: @fabs_shuf_use3(
1897 ; CHECK-NEXT: [[NX:%.*]] = call nnan <2 x float> @llvm.fabs.v2f32(<2 x float> [[X:%.*]])
1898 ; CHECK-NEXT: call void @use(<2 x float> [[NX]])
1899 ; CHECK-NEXT: [[NY:%.*]] = call nnan <2 x float> @llvm.fabs.v2f32(<2 x float> [[Y:%.*]])
1900 ; CHECK-NEXT: call void @use(<2 x float> [[NY]])
1901 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[NX]], <2 x float> [[NY]], <2 x i32> <i32 1, i32 2>
1902 ; CHECK-NEXT: ret <2 x float> [[R]]
1904 %nx = call nnan <2 x float> @llvm.fabs.v2f32(<2 x float> %x)
1905 call void @use(<2 x float> %nx)
1906 %ny = call nnan <2 x float> @llvm.fabs.v2f32(<2 x float> %y)
1907 call void @use(<2 x float> %ny)
1908 %r = shufflevector <2 x float> %nx, <2 x float> %ny, <2 x i32> <i32 1, i32 2>
1912 define <2 x float> @fneg_unary_shuf(<2 x float> %x) {
1913 ; CHECK-LABEL: @fneg_unary_shuf(
1914 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <2 x float> [[X:%.*]], <2 x float> poison, <2 x i32> <i32 1, i32 0>
1915 ; CHECK-NEXT: [[R:%.*]] = fneg nnan nsz <2 x float> [[TMP1]]
1916 ; CHECK-NEXT: ret <2 x float> [[R]]
1918 %nx = fneg nsz nnan <2 x float> %x
1919 %r = shufflevector <2 x float> %nx, <2 x float> poison, <2 x i32> <i32 1, i32 0>
1923 define <4 x half> @fneg_unary_shuf_widen(<2 x half> %x) {
1924 ; CHECK-LABEL: @fneg_unary_shuf_widen(
1925 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <2 x half> [[X:%.*]], <2 x half> poison, <4 x i32> <i32 1, i32 0, i32 0, i32 poison>
1926 ; CHECK-NEXT: [[R:%.*]] = fneg ninf <4 x half> [[TMP1]]
1927 ; CHECK-NEXT: ret <4 x half> [[R]]
1929 %nx = fneg ninf <2 x half> %x
1930 %r = shufflevector <2 x half> %nx, <2 x half> poison, <4 x i32> <i32 1, i32 0, i32 0, i32 poison>
1934 define <2 x double> @fneg_unary_shuf_narrow(<4 x double> %x) {
1935 ; CHECK-LABEL: @fneg_unary_shuf_narrow(
1936 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <4 x double> [[X:%.*]], <4 x double> poison, <2 x i32> <i32 3, i32 0>
1937 ; CHECK-NEXT: [[R:%.*]] = fneg nsz <2 x double> [[TMP1]]
1938 ; CHECK-NEXT: ret <2 x double> [[R]]
1940 %nx = fneg nsz <4 x double> %x
1941 %r = shufflevector <4 x double> %nx, <4 x double> poison, <2 x i32> <i32 3, i32 0>
1945 ; negative test - extra use prevents canonicalization
1947 define <2 x float> @fneg_unary_shuf_use(<2 x float> %x) {
1948 ; CHECK-LABEL: @fneg_unary_shuf_use(
1949 ; CHECK-NEXT: [[NX:%.*]] = fneg nsz <2 x float> [[X:%.*]]
1950 ; CHECK-NEXT: call void @use(<2 x float> [[NX]])
1951 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[NX]], <2 x float> poison, <2 x i32> <i32 poison, i32 0>
1952 ; CHECK-NEXT: ret <2 x float> [[R]]
1954 %nx = fneg nsz <2 x float> %x
1955 call void @use(<2 x float> %nx)
1956 %r = shufflevector <2 x float> %nx, <2 x float> poison, <2 x i32> <i32 3, i32 0>
1962 define <4 x float> @fneg_shuf(<4 x float> %x, <4 x float> %y) {
1963 ; CHECK-LABEL: @fneg_shuf(
1964 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <4 x float> [[X:%.*]], <4 x float> [[Y:%.*]], <4 x i32> <i32 0, i32 1, i32 4, i32 5>
1965 ; CHECK-NEXT: [[R:%.*]] = fneg ninf <4 x float> [[TMP1]]
1966 ; CHECK-NEXT: ret <4 x float> [[R]]
1968 %nx = fneg nsz ninf <4 x float> %x
1969 %ny = fneg nnan ninf <4 x float> %y
1970 %r = shufflevector <4 x float> %nx, <4 x float> %ny, <4 x i32> <i32 0, i32 1, i32 4, i32 5>
1974 ; length-changing shuffle and extra use are ok
1976 define <4 x float> @fneg_shuf_widen_use1(<2 x float> %x, <2 x float> %y) {
1977 ; CHECK-LABEL: @fneg_shuf_widen_use1(
1978 ; CHECK-NEXT: [[NX:%.*]] = fneg nnan <2 x float> [[X:%.*]]
1979 ; CHECK-NEXT: call void @use(<2 x float> [[NX]])
1980 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <2 x float> [[X]], <2 x float> [[Y:%.*]], <4 x i32> <i32 poison, i32 1, i32 2, i32 3>
1981 ; CHECK-NEXT: [[R:%.*]] = fneg nnan <4 x float> [[TMP1]]
1982 ; CHECK-NEXT: ret <4 x float> [[R]]
1984 %nx = fneg nnan <2 x float> %x
1985 call void @use(<2 x float> %nx)
1986 %ny = fneg nnan <2 x float> %y
1987 %r = shufflevector <2 x float> %nx, <2 x float> %ny, <4 x i32> <i32 poison, i32 1, i32 2, i32 3>
1991 ; length-changing shuffle and extra use still ok
1993 define <2 x float> @fneg_shuf_narrow_use2(<4 x float> %x, <4 x float> %y) {
1994 ; CHECK-LABEL: @fneg_shuf_narrow_use2(
1995 ; CHECK-NEXT: [[NY:%.*]] = fneg nnan nsz <4 x float> [[Y:%.*]]
1996 ; CHECK-NEXT: call void @use4(<4 x float> [[NY]])
1997 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <4 x float> [[X:%.*]], <4 x float> [[Y]], <2 x i32> <i32 3, i32 5>
1998 ; CHECK-NEXT: [[R:%.*]] = fneg nnan nsz <2 x float> [[TMP1]]
1999 ; CHECK-NEXT: ret <2 x float> [[R]]
2001 %nx = fneg nsz nnan <4 x float> %x
2002 %ny = fneg nsz nnan <4 x float> %y
2003 call void @use4(<4 x float> %ny)
2004 %r = shufflevector <4 x float> %nx, <4 x float> %ny, <2 x i32> <i32 3, i32 5>
2008 ; negative test - too many extra uses
2010 define <2 x float> @fneg_shuf_use3(<2 x float> %x, <2 x float> %y) {
2011 ; CHECK-LABEL: @fneg_shuf_use3(
2012 ; CHECK-NEXT: [[NX:%.*]] = fneg nnan <2 x float> [[X:%.*]]
2013 ; CHECK-NEXT: call void @use(<2 x float> [[NX]])
2014 ; CHECK-NEXT: [[NY:%.*]] = fneg nnan <2 x float> [[Y:%.*]]
2015 ; CHECK-NEXT: call void @use(<2 x float> [[NY]])
2016 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[NX]], <2 x float> [[NY]], <2 x i32> <i32 1, i32 2>
2017 ; CHECK-NEXT: ret <2 x float> [[R]]
2019 %nx = fneg nnan <2 x float> %x
2020 call void @use(<2 x float> %nx)
2021 %ny = fneg nnan <2 x float> %y
2022 call void @use(<2 x float> %ny)
2023 %r = shufflevector <2 x float> %nx, <2 x float> %ny, <2 x i32> <i32 1, i32 2>
2027 ; negative test - mixed opcodes
2029 define <4 x float> @fabs_fneg_shuf(<4 x float> %x, <4 x float> %y) {
2030 ; CHECK-LABEL: @fabs_fneg_shuf(
2031 ; CHECK-NEXT: [[NX:%.*]] = call <4 x float> @llvm.fabs.v4f32(<4 x float> [[X:%.*]])
2032 ; CHECK-NEXT: [[NY:%.*]] = fneg nnan ninf <4 x float> [[Y:%.*]]
2033 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x float> [[NX]], <4 x float> [[NY]], <4 x i32> <i32 0, i32 1, i32 4, i32 5>
2034 ; CHECK-NEXT: ret <4 x float> [[R]]
2036 %nx = call <4 x float> @llvm.fabs.v4f32(<4 x float> %x)
2037 %ny = fneg nnan ninf <4 x float> %y
2038 %r = shufflevector <4 x float> %nx, <4 x float> %ny, <4 x i32> <i32 0, i32 1, i32 4, i32 5>
2042 define <2 x i32> @fptosi_unary_shuf(<2 x float> %x) {
2043 ; CHECK-LABEL: @fptosi_unary_shuf(
2044 ; CHECK-NEXT: [[NX:%.*]] = fptosi <2 x float> [[X:%.*]] to <2 x i32>
2045 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[NX]], <2 x i32> poison, <2 x i32> <i32 1, i32 0>
2046 ; CHECK-NEXT: ret <2 x i32> [[R]]
2048 %nx = fptosi <2 x float> %x to <2 x i32>
2049 %r = shufflevector <2 x i32> %nx, <2 x i32> poison, <2 x i32> <i32 1, i32 0>
2053 define <2 x i64> @fptoui_unary_shuf_widen_elts(<2 x float> %x) {
2054 ; CHECK-LABEL: @fptoui_unary_shuf_widen_elts(
2055 ; CHECK-NEXT: [[NX:%.*]] = fptoui <2 x float> [[X:%.*]] to <2 x i64>
2056 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i64> [[NX]], <2 x i64> poison, <2 x i32> <i32 1, i32 0>
2057 ; CHECK-NEXT: ret <2 x i64> [[R]]
2059 %nx = fptoui <2 x float> %x to <2 x i64>
2060 %r = shufflevector <2 x i64> %nx, <2 x i64> poison, <2 x i32> <i32 1, i32 0>
2064 define <2 x half> @sitofp_unary_shuf_narrow_elts(<2 x i32> %x) {
2065 ; CHECK-LABEL: @sitofp_unary_shuf_narrow_elts(
2066 ; CHECK-NEXT: [[NX:%.*]] = sitofp <2 x i32> [[X:%.*]] to <2 x half>
2067 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x half> [[NX]], <2 x half> poison, <2 x i32> <i32 1, i32 0>
2068 ; CHECK-NEXT: ret <2 x half> [[R]]
2070 %nx = sitofp <2 x i32> %x to <2 x half>
2071 %r = shufflevector <2 x half> %nx, <2 x half> poison, <2 x i32> <i32 1, i32 0>
2075 define <2 x float> @uitofp_unary_shuf(<2 x i32> %x) {
2076 ; CHECK-LABEL: @uitofp_unary_shuf(
2077 ; CHECK-NEXT: [[NX:%.*]] = uitofp <2 x i32> [[X:%.*]] to <2 x float>
2078 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[NX]], <2 x float> poison, <2 x i32> <i32 1, i32 0>
2079 ; CHECK-NEXT: ret <2 x float> [[R]]
2081 %nx = uitofp <2 x i32> %x to <2 x float>
2082 %r = shufflevector <2 x float> %nx, <2 x float> poison, <2 x i32> <i32 1, i32 0>
2086 define <4 x i16> @fptosi_unary_shuf_widen(<2 x half> %x) {
2087 ; CHECK-LABEL: @fptosi_unary_shuf_widen(
2088 ; CHECK-NEXT: [[NX:%.*]] = fptosi <2 x half> [[X:%.*]] to <2 x i16>
2089 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i16> [[NX]], <2 x i16> poison, <4 x i32> <i32 1, i32 0, i32 0, i32 poison>
2090 ; CHECK-NEXT: ret <4 x i16> [[R]]
2092 %nx = fptosi <2 x half> %x to <2 x i16>
2093 %r = shufflevector <2 x i16> %nx, <2 x i16> poison, <4 x i32> <i32 1, i32 0, i32 0, i32 poison>
2097 define <4 x i32> @fptoui_unary_shuf_widen_widen_elts(<2 x half> %x) {
2098 ; CHECK-LABEL: @fptoui_unary_shuf_widen_widen_elts(
2099 ; CHECK-NEXT: [[NX:%.*]] = fptoui <2 x half> [[X:%.*]] to <2 x i32>
2100 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i32> [[NX]], <2 x i32> poison, <4 x i32> <i32 1, i32 0, i32 0, i32 poison>
2101 ; CHECK-NEXT: ret <4 x i32> [[R]]
2103 %nx = fptoui <2 x half> %x to <2 x i32>
2104 %r = shufflevector <2 x i32> %nx, <2 x i32> poison, <4 x i32> <i32 1, i32 0, i32 0, i32 poison>
2108 define <4 x half> @sitofp_unary_shuf_widen_narrow_elts(<2 x i32> %x) {
2109 ; CHECK-LABEL: @sitofp_unary_shuf_widen_narrow_elts(
2110 ; CHECK-NEXT: [[NX:%.*]] = sitofp <2 x i32> [[X:%.*]] to <2 x half>
2111 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x half> [[NX]], <2 x half> poison, <4 x i32> <i32 1, i32 0, i32 0, i32 poison>
2112 ; CHECK-NEXT: ret <4 x half> [[R]]
2114 %nx = sitofp <2 x i32> %x to <2 x half>
2115 %r = shufflevector <2 x half> %nx, <2 x half> poison, <4 x i32> <i32 1, i32 0, i32 0, i32 poison>
2119 define <4 x half> @uitofp_unary_shuf_widen(<2 x i16> %x) {
2120 ; CHECK-LABEL: @uitofp_unary_shuf_widen(
2121 ; CHECK-NEXT: [[NX:%.*]] = uitofp <2 x i16> [[X:%.*]] to <2 x half>
2122 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x half> [[NX]], <2 x half> poison, <4 x i32> <i32 1, i32 0, i32 0, i32 poison>
2123 ; CHECK-NEXT: ret <4 x half> [[R]]
2125 %nx = uitofp <2 x i16> %x to <2 x half>
2126 %r = shufflevector <2 x half> %nx, <2 x half> poison, <4 x i32> <i32 1, i32 0, i32 0, i32 poison>
2130 define <2 x i16> @fptosi_unary_shuf_narrow(<4 x half> %x) {
2131 ; CHECK-LABEL: @fptosi_unary_shuf_narrow(
2132 ; CHECK-NEXT: [[NX:%.*]] = fptosi <4 x half> [[X:%.*]] to <4 x i16>
2133 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x i16> [[NX]], <4 x i16> poison, <2 x i32> <i32 1, i32 0>
2134 ; CHECK-NEXT: ret <2 x i16> [[R]]
2136 %nx = fptosi <4 x half> %x to <4 x i16>
2137 %r = shufflevector <4 x i16> %nx, <4 x i16> poison, <2 x i32> <i32 1, i32 0>
2141 define <2 x i32> @fptoui_unary_shuf_narrow_widen_elts(<4 x half> %x) {
2142 ; CHECK-LABEL: @fptoui_unary_shuf_narrow_widen_elts(
2143 ; CHECK-NEXT: [[NX:%.*]] = fptoui <4 x half> [[X:%.*]] to <4 x i32>
2144 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x i32> [[NX]], <4 x i32> poison, <2 x i32> <i32 3, i32 0>
2145 ; CHECK-NEXT: ret <2 x i32> [[R]]
2147 %nx = fptoui <4 x half> %x to <4 x i32>
2148 %r = shufflevector <4 x i32> %nx, <4 x i32> poison, <2 x i32> <i32 3, i32 0>
2152 define <2 x double> @sitofp_unary_shuf_narrow(<4 x i64> %x) {
2153 ; CHECK-LABEL: @sitofp_unary_shuf_narrow(
2154 ; CHECK-NEXT: [[NX:%.*]] = sitofp <4 x i64> [[X:%.*]] to <4 x double>
2155 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x double> [[NX]], <4 x double> poison, <2 x i32> <i32 2, i32 1>
2156 ; CHECK-NEXT: ret <2 x double> [[R]]
2158 %nx = sitofp <4 x i64> %x to <4 x double>
2159 %r = shufflevector <4 x double> %nx, <4 x double> poison, <2 x i32> <i32 2, i32 1>
2163 define <2 x half> @uitofp_unary_shuf_narrow_narrow_elts(<4 x i32> %x) {
2164 ; CHECK-LABEL: @uitofp_unary_shuf_narrow_narrow_elts(
2165 ; CHECK-NEXT: [[NX:%.*]] = uitofp <4 x i32> [[X:%.*]] to <4 x half>
2166 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x half> [[NX]], <4 x half> poison, <2 x i32> <i32 3, i32 1>
2167 ; CHECK-NEXT: ret <2 x half> [[R]]
2169 %nx = uitofp <4 x i32> %x to <4 x half>
2170 %r = shufflevector <4 x half> %nx, <4 x half> poison, <2 x i32> <i32 3, i32 1>
2174 define <4 x i32> @fptosi_shuf(<4 x float> %x, <4 x float> %y) {
2175 ; CHECK-LABEL: @fptosi_shuf(
2176 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <4 x float> [[X:%.*]], <4 x float> [[Y:%.*]], <4 x i32> <i32 0, i32 1, i32 4, i32 5>
2177 ; CHECK-NEXT: [[R:%.*]] = fptosi <4 x float> [[TMP1]] to <4 x i32>
2178 ; CHECK-NEXT: ret <4 x i32> [[R]]
2180 %nx = fptosi <4 x float> %x to <4 x i32>
2181 %ny = fptosi <4 x float> %y to <4 x i32>
2182 %r = shufflevector <4 x i32> %nx, <4 x i32> %ny, <4 x i32> <i32 0, i32 1, i32 4, i32 5>
2186 define <3 x i16> @fptoui_shuf(<3 x half> %x, <3 x half> %y) {
2187 ; CHECK-LABEL: @fptoui_shuf(
2188 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <3 x half> [[X:%.*]], <3 x half> [[Y:%.*]], <3 x i32> <i32 0, i32 poison, i32 4>
2189 ; CHECK-NEXT: [[R:%.*]] = fptoui <3 x half> [[TMP1]] to <3 x i16>
2190 ; CHECK-NEXT: ret <3 x i16> [[R]]
2192 %nx = fptoui <3 x half> %x to <3 x i16>
2193 %ny = fptoui <3 x half> %y to <3 x i16>
2194 %r = shufflevector <3 x i16> %nx, <3 x i16> %ny, <3 x i32> <i32 0, i32 poison, i32 4>
2198 ; negative test - must have same source types
2200 define <3 x i16> @fptoui_shuf_different_source_types(<3 x float> %x, <3 x half> %y) {
2201 ; CHECK-LABEL: @fptoui_shuf_different_source_types(
2202 ; CHECK-NEXT: [[NX:%.*]] = fptoui <3 x float> [[X:%.*]] to <3 x i16>
2203 ; CHECK-NEXT: [[NY:%.*]] = fptoui <3 x half> [[Y:%.*]] to <3 x i16>
2204 ; CHECK-NEXT: [[R:%.*]] = shufflevector <3 x i16> [[NX]], <3 x i16> [[NY]], <3 x i32> <i32 0, i32 2, i32 4>
2205 ; CHECK-NEXT: ret <3 x i16> [[R]]
2207 %nx = fptoui <3 x float> %x to <3 x i16>
2208 %ny = fptoui <3 x half> %y to <3 x i16>
2209 %r = shufflevector <3 x i16> %nx, <3 x i16> %ny, <3 x i32> <i32 0, i32 2, i32 4>
2213 define <4 x i32> @fptoui_shuf_widen_elts(<4 x half> %x, <4 x half> %y) {
2214 ; CHECK-LABEL: @fptoui_shuf_widen_elts(
2215 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <4 x half> [[X:%.*]], <4 x half> [[Y:%.*]], <4 x i32> <i32 0, i32 1, i32 4, i32 5>
2216 ; CHECK-NEXT: [[R:%.*]] = fptosi <4 x half> [[TMP1]] to <4 x i32>
2217 ; CHECK-NEXT: ret <4 x i32> [[R]]
2219 %nx = fptosi <4 x half> %x to <4 x i32>
2220 %ny = fptosi <4 x half> %y to <4 x i32>
2221 %r = shufflevector <4 x i32> %nx, <4 x i32> %ny, <4 x i32> <i32 0, i32 1, i32 4, i32 5>
2225 ; negative test - must have same or smaller size source elements
2227 define <4 x float> @sitofp_shuf_narrow_elts(<4 x i64> %x, <4 x i64> %y) {
2228 ; CHECK-LABEL: @sitofp_shuf_narrow_elts(
2229 ; CHECK-NEXT: [[NX:%.*]] = sitofp <4 x i64> [[X:%.*]] to <4 x float>
2230 ; CHECK-NEXT: [[NY:%.*]] = sitofp <4 x i64> [[Y:%.*]] to <4 x float>
2231 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x float> [[NX]], <4 x float> [[NY]], <4 x i32> <i32 0, i32 1, i32 4, i32 5>
2232 ; CHECK-NEXT: ret <4 x float> [[R]]
2234 %nx = sitofp <4 x i64> %x to <4 x float>
2235 %ny = sitofp <4 x i64> %y to <4 x float>
2236 %r = shufflevector <4 x float> %nx, <4 x float> %ny, <4 x i32> <i32 0, i32 1, i32 4, i32 5>
2240 ; one extra use is ok
2242 define <4 x float> @uitofp_shuf_extra_use1(<4 x i32> %x, <4 x i32> %y) {
2243 ; CHECK-LABEL: @uitofp_shuf_extra_use1(
2244 ; CHECK-NEXT: [[NX:%.*]] = uitofp <4 x i32> [[X:%.*]] to <4 x float>
2245 ; CHECK-NEXT: call void @use4(<4 x float> [[NX]])
2246 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <4 x i32> [[X]], <4 x i32> [[Y:%.*]], <4 x i32> <i32 0, i32 0, i32 4, i32 5>
2247 ; CHECK-NEXT: [[R:%.*]] = uitofp <4 x i32> [[TMP1]] to <4 x float>
2248 ; CHECK-NEXT: ret <4 x float> [[R]]
2250 %nx = uitofp <4 x i32> %x to <4 x float>
2251 call void @use4(<4 x float> %nx)
2252 %ny = uitofp <4 x i32> %y to <4 x float>
2253 %r = shufflevector <4 x float> %nx, <4 x float> %ny, <4 x i32> <i32 0, i32 0, i32 4, i32 5>
2257 ; one extra use is ok
2259 define <4 x float> @sitofp_shuf_extra_use2(<4 x i32> %x, <4 x i32> %y) {
2260 ; CHECK-LABEL: @sitofp_shuf_extra_use2(
2261 ; CHECK-NEXT: [[NY:%.*]] = sitofp <4 x i32> [[Y:%.*]] to <4 x float>
2262 ; CHECK-NEXT: call void @use4(<4 x float> [[NY]])
2263 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <4 x i32> [[X:%.*]], <4 x i32> [[Y]], <4 x i32> <i32 7, i32 1, i32 4, i32 0>
2264 ; CHECK-NEXT: [[R:%.*]] = sitofp <4 x i32> [[TMP1]] to <4 x float>
2265 ; CHECK-NEXT: ret <4 x float> [[R]]
2267 %nx = sitofp <4 x i32> %x to <4 x float>
2268 %ny = sitofp <4 x i32> %y to <4 x float>
2269 call void @use4(<4 x float> %ny)
2270 %r = shufflevector <4 x float> %nx, <4 x float> %ny, <4 x i32> <i32 7, i32 1, i32 4, i32 0>
2274 ; negative test - both ops have extra uses
2276 define <2 x float> @sitofp_shuf_extra_use3(<2 x i32> %x, <2 x i32> %y) {
2277 ; CHECK-LABEL: @sitofp_shuf_extra_use3(
2278 ; CHECK-NEXT: [[NX:%.*]] = sitofp <2 x i32> [[X:%.*]] to <2 x float>
2279 ; CHECK-NEXT: call void @use(<2 x float> [[NX]])
2280 ; CHECK-NEXT: [[NY:%.*]] = sitofp <2 x i32> [[Y:%.*]] to <2 x float>
2281 ; CHECK-NEXT: call void @use(<2 x float> [[NY]])
2282 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[NX]], <2 x float> [[NY]], <2 x i32> <i32 3, i32 1>
2283 ; CHECK-NEXT: ret <2 x float> [[R]]
2285 %nx = sitofp <2 x i32> %x to <2 x float>
2286 call void @use(<2 x float> %nx)
2287 %ny = sitofp <2 x i32> %y to <2 x float>
2288 call void @use(<2 x float> %ny)
2289 %r = shufflevector <2 x float> %nx, <2 x float> %ny, <2 x i32> <i32 3, i32 1>
2293 ; negative test - mismatched casts
2295 define <4 x i32> @fptoi_shuf(<4 x float> %x, <4 x float> %y) {
2296 ; CHECK-LABEL: @fptoi_shuf(
2297 ; CHECK-NEXT: [[NX:%.*]] = fptoui <4 x float> [[X:%.*]] to <4 x i32>
2298 ; CHECK-NEXT: [[NY:%.*]] = fptosi <4 x float> [[Y:%.*]] to <4 x i32>
2299 ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x i32> [[NX]], <4 x i32> [[NY]], <4 x i32> <i32 0, i32 1, i32 4, i32 5>
2300 ; CHECK-NEXT: ret <4 x i32> [[R]]
2302 %nx = fptoui <4 x float> %x to <4 x i32>
2303 %ny = fptosi <4 x float> %y to <4 x i32>
2304 %r = shufflevector <4 x i32> %nx, <4 x i32> %ny, <4 x i32> <i32 0, i32 1, i32 4, i32 5>
2308 ; negative test - length-increasing shuffle
2310 define <4 x float> @sitofp_shuf_widen(<2 x i32> %x, <2 x i32> %y) {
2311 ; CHECK-LABEL: @sitofp_shuf_widen(
2312 ; CHECK-NEXT: [[NX:%.*]] = sitofp <2 x i32> [[X:%.*]] to <2 x float>
2313 ; CHECK-NEXT: [[NY:%.*]] = sitofp <2 x i32> [[Y:%.*]] to <2 x float>
2314 ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[NX]], <2 x float> [[NY]], <4 x i32> <i32 poison, i32 1, i32 2, i32 3>
2315 ; CHECK-NEXT: ret <4 x float> [[R]]
2317 %nx = sitofp <2 x i32> %x to <2 x float>
2318 %ny = sitofp <2 x i32> %y to <2 x float>
2319 %r = shufflevector <2 x float> %nx, <2 x float> %ny, <4 x i32> <i32 poison, i32 1, i32 2, i32 3>
2323 define <2 x float> @uitofp_shuf_narrow(<4 x i32> %x, <4 x i32> %y) {
2324 ; CHECK-LABEL: @uitofp_shuf_narrow(
2325 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <4 x i32> [[X:%.*]], <4 x i32> [[Y:%.*]], <2 x i32> <i32 3, i32 5>
2326 ; CHECK-NEXT: [[R:%.*]] = uitofp <2 x i32> [[TMP1]] to <2 x float>
2327 ; CHECK-NEXT: ret <2 x float> [[R]]
2329 %nx = uitofp <4 x i32> %x to <4 x float>
2330 %ny = uitofp <4 x i32> %y to <4 x float>
2331 %r = shufflevector <4 x float> %nx, <4 x float> %ny, <2 x i32> <i32 3, i32 5>
2335 define <4 x i16> @blend_elements_from_load(ptr align 8 %_0) {
2336 ; CHECK-LABEL: @blend_elements_from_load(
2337 ; CHECK-NEXT: [[LOAD:%.*]] = load <3 x i16>, ptr [[_0:%.*]], align 8
2338 ; CHECK-NEXT: [[RV:%.*]] = shufflevector <3 x i16> <i16 0, i16 undef, i16 poison>, <3 x i16> [[LOAD]], <4 x i32> <i32 0, i32 1, i32 3, i32 5>
2339 ; CHECK-NEXT: ret <4 x i16> [[RV]]
2341 %load = load <3 x i16>, ptr %_0, align 8
2342 %rv = shufflevector <3 x i16> <i16 0, i16 undef, i16 undef>, <3 x i16> %load, <4 x i32> <i32 0, i32 1, i32 3, i32 5>
2346 define i16 @pr92887(<2 x i16> %v) {
2347 ; CHECK-LABEL: @pr92887(
2348 ; CHECK-NEXT: ret i16 undef
2350 %v0 = extractelement <2 x i16> %v, i64 0
2351 %v0lo = and i16 %v0, 1
2352 %v1 = extractelement <2 x i16> %v, i64 1
2353 %v1lo = and i16 %v1, 1
2354 %ins1 = insertelement <4 x i16> poison, i16 %v0lo, i64 0
2355 %ins2 = insertelement <4 x i16> %ins1, i16 %v1lo, i64 1
2356 %shuf = shufflevector <4 x i16> %ins2, <4 x i16> <i16 poison, i16 poison, i16 undef, i16 undef>, <4 x i32> <i32 0, i32 1, i32 6, i32 7>
2357 %extract = extractelement <4 x i16> %shuf, i32 2
2361 define <2 x i32> @not_splat_shuffle1(i32 %x) {
2362 ; CHECK-LABEL: @not_splat_shuffle1(
2363 ; CHECK-NEXT: [[SHUF:%.*]] = insertelement <2 x i32> <i32 poison, i32 undef>, i32 [[X:%.*]], i64 0
2364 ; CHECK-NEXT: ret <2 x i32> [[SHUF]]
2366 %vec = insertelement <2 x i32> undef, i32 %x, i32 1
2367 %shuf = shufflevector <2 x i32> %vec, <2 x i32> poison, <2 x i32> <i32 1, i32 0>
2371 define <2 x i32> @not_splat_shuffle2(i32 %x) {
2372 ; CHECK-LABEL: @not_splat_shuffle2(
2373 ; CHECK-NEXT: [[SHUF:%.*]] = insertelement <2 x i32> <i32 poison, i32 undef>, i32 [[X:%.*]], i64 0
2374 ; CHECK-NEXT: ret <2 x i32> [[SHUF]]
2376 %vec = insertelement <2 x i32> poison, i32 %x, i32 1
2377 %shuf = shufflevector <2 x i32> %vec, <2 x i32> undef, <2 x i32> <i32 1, i32 3>
2380 define <2 x i32> @foldselect0(i1 %c) {
2381 ; CHECK-LABEL: @foldselect0(
2382 ; CHECK-NEXT: [[SHUF:%.*]] = select i1 [[C:%.*]], <2 x i32> <i32 7, i32 42>, <2 x i32> <i32 1, i32 0>
2383 ; CHECK-NEXT: ret <2 x i32> [[SHUF]]
2385 %sel = select i1 %c, <2 x i32> <i32 42, i32 7>, <2 x i32> <i32 0, i32 1>
2386 %shuf = shufflevector <2 x i32> %sel, <2 x i32> poison, <2 x i32> <i32 1, i32 0>
2390 ; Make sure we do not crash in this case.
2391 define <4 x float> @shuf_larger_length_vec_select(<2 x i1> %cond) {
2392 ; CHECK-LABEL: @shuf_larger_length_vec_select(
2393 ; CHECK-NEXT: [[SEL:%.*]] = select <2 x i1> [[COND:%.*]], <2 x float> zeroinitializer, <2 x float> splat (float 1.000000e+00)
2394 ; CHECK-NEXT: [[SHUF:%.*]] = shufflevector <2 x float> [[SEL]], <2 x float> zeroinitializer, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
2395 ; CHECK-NEXT: ret <4 x float> [[SHUF]]
2397 %sel = select <2 x i1> %cond, <2 x float> zeroinitializer, <2 x float> splat(float 1.000000e+00)
2398 %shuf = shufflevector <2 x float> %sel, <2 x float> zeroinitializer, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
2399 ret <4 x float> %shuf
2402 ; Make sure we do not fold in this case.
2403 define <4 x i32> @shuf_same_length_vec_select(<4 x i1> %cond) {
2404 ; CHECK-LABEL: @shuf_same_length_vec_select(
2405 ; CHECK-NEXT: [[SEL:%.*]] = select <4 x i1> [[COND:%.*]], <4 x i32> <i32 poison, i32 1, i32 2, i32 3>, <4 x i32> <i32 poison, i32 5, i32 6, i32 7>
2406 ; CHECK-NEXT: [[SHUF:%.*]] = shufflevector <4 x i32> [[SEL]], <4 x i32> <i32 poison, i32 9, i32 poison, i32 poison>, <4 x i32> <i32 2, i32 1, i32 3, i32 5>
2407 ; CHECK-NEXT: ret <4 x i32> [[SHUF]]
2409 %sel = select <4 x i1> %cond, <4 x i32> <i32 0, i32 1, i32 2, i32 3>, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
2410 %shuf = shufflevector <4 x i32> %sel, <4 x i32> <i32 8, i32 9, i32 10, i32 11>, <4 x i32> <i32 2, i32 1, i32 3, i32 5>
2414 ; Make sure we do not fold in this case.
2415 define <4 x i8> @shuf_cmp_may_be_poison(<4 x i8> %x, <4 x i8> %y, i1 %cmp) {
2416 ; CHECK-LABEL: @shuf_cmp_may_be_poison(
2417 ; CHECK-NEXT: [[Y:%.*]] = select i1 [[CMP:%.*]], <4 x i8> [[Y1:%.*]], <4 x i8> <i8 0, i8 poison, i8 0, i8 poison>
2418 ; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <4 x i8> [[Y]], <4 x i8> <i8 poison, i8 1, i8 poison, i8 3>, <4 x i32> <i32 0, i32 5, i32 2, i32 7>
2419 ; CHECK-NEXT: ret <4 x i8> [[TMP1]]
2421 %sel = select i1 %cmp, <4 x i8> %y, <4 x i8> <i8 0, i8 poison, i8 0, i8 poison>
2422 %shuf = shufflevector <4 x i8> %sel, <4 x i8> <i8 poison, i8 1, i8 poison, i8 3>, <4 x i32> <i32 0, i32 5, i32 2, i32 7>
2427 declare <4 x i32> @value()
2429 define <4 x i32> @foldphi1() {
2430 ; CHECK-LABEL: @foldphi1(
2431 ; CHECK-NEXT: entry:
2432 ; CHECK-NEXT: br label [[LOOP:%.*]]
2434 ; CHECK-NEXT: [[V:%.*]] = phi <4 x i32> [ zeroinitializer, [[ENTRY:%.*]] ], [ [[XOR:%.*]], [[LOOP]] ]
2435 ; CHECK-NEXT: [[VAL:%.*]] = call <4 x i32> @value()
2436 ; CHECK-NEXT: [[XOR]] = xor <4 x i32> [[V]], [[VAL]]
2437 ; CHECK-NEXT: [[C:%.*]] = call i1 @cond()
2438 ; CHECK-NEXT: br i1 [[C]], label [[LOOP]], label [[EXIT:%.*]]
2440 ; CHECK-NEXT: [[SHUF1:%.*]] = shufflevector <4 x i32> [[XOR]], <4 x i32> poison, <4 x i32> <i32 3, i32 0, i32 1, i32 2>
2441 ; CHECK-NEXT: ret <4 x i32> [[SHUF1]]
2447 %v = phi <4 x i32> [zeroinitializer, %entry], [%shuf1, %loop]
2449 %shuf0 = shufflevector <4 x i32> %v, <4 x i32> poison, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
2450 %val = call <4 x i32> @value()
2451 %xor = xor <4 x i32> %shuf0, %val
2452 %shuf1 = shufflevector <4 x i32> %xor, <4 x i32> poison, <4 x i32> <i32 3, i32 0, i32 1, i32 2>
2454 %c = call i1 @cond()
2455 br i1 %c, label %loop, label %exit
2458 ret <4 x i32> %shuf1