1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -instcombine -S | FileCheck %s
4 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
5 target triple = "x86_64-apple-darwin10.0.0"
7 ; Bitcasts between vectors and scalars are valid.
9 define i32 @test1(i64 %a) {
10 ; CHECK-LABEL: @test1(
11 ; CHECK-NEXT: ret i32 0
13 %t1 = bitcast i64 %a to <2 x i32>
14 %t2 = bitcast i64 %a to <2 x i32>
15 %t3 = xor <2 x i32> %t1, %t2
16 %t4 = extractelement <2 x i32> %t3, i32 0
20 ; Perform the bitwise logic in the source type of the operands to eliminate bitcasts.
22 define <2 x i32> @xor_two_vector_bitcasts(<1 x i64> %a, <1 x i64> %b) {
23 ; CHECK-LABEL: @xor_two_vector_bitcasts(
24 ; CHECK-NEXT: [[T31:%.*]] = xor <1 x i64> [[A:%.*]], [[B:%.*]]
25 ; CHECK-NEXT: [[T3:%.*]] = bitcast <1 x i64> [[T31]] to <2 x i32>
26 ; CHECK-NEXT: ret <2 x i32> [[T3]]
28 %t1 = bitcast <1 x i64> %a to <2 x i32>
29 %t2 = bitcast <1 x i64> %b to <2 x i32>
30 %t3 = xor <2 x i32> %t1, %t2
34 ; No change. Bitcasts are canonicalized above bitwise logic.
36 define <2 x i32> @xor_bitcast_vec_to_vec(<1 x i64> %a) {
37 ; CHECK-LABEL: @xor_bitcast_vec_to_vec(
38 ; CHECK-NEXT: [[T1:%.*]] = bitcast <1 x i64> [[A:%.*]] to <2 x i32>
39 ; CHECK-NEXT: [[T2:%.*]] = xor <2 x i32> [[T1]], <i32 1, i32 2>
40 ; CHECK-NEXT: ret <2 x i32> [[T2]]
42 %t1 = bitcast <1 x i64> %a to <2 x i32>
43 %t2 = xor <2 x i32> <i32 1, i32 2>, %t1
47 ; No change. Bitcasts are canonicalized above bitwise logic.
49 define i64 @and_bitcast_vec_to_int(<2 x i32> %a) {
50 ; CHECK-LABEL: @and_bitcast_vec_to_int(
51 ; CHECK-NEXT: [[T1:%.*]] = bitcast <2 x i32> [[A:%.*]] to i64
52 ; CHECK-NEXT: [[T2:%.*]] = and i64 [[T1]], 3
53 ; CHECK-NEXT: ret i64 [[T2]]
55 %t1 = bitcast <2 x i32> %a to i64
60 ; No change. Bitcasts are canonicalized above bitwise logic.
62 define <2 x i32> @or_bitcast_int_to_vec(i64 %a) {
63 ; CHECK-LABEL: @or_bitcast_int_to_vec(
64 ; CHECK-NEXT: [[T1:%.*]] = bitcast i64 [[A:%.*]] to <2 x i32>
65 ; CHECK-NEXT: [[T2:%.*]] = or <2 x i32> [[T1]], <i32 1, i32 2>
66 ; CHECK-NEXT: ret <2 x i32> [[T2]]
68 %t1 = bitcast i64 %a to <2 x i32>
69 %t2 = or <2 x i32> %t1, <i32 1, i32 2>
73 ; PR26702 - https://bugs.llvm.org//show_bug.cgi?id=26702
74 ; Bitcast is canonicalized above logic, so we can see the not-not pattern.
76 define <2 x i64> @is_negative(<4 x i32> %x) {
77 ; CHECK-LABEL: @is_negative(
78 ; CHECK-NEXT: [[LOBIT:%.*]] = ashr <4 x i32> [[X:%.*]], <i32 31, i32 31, i32 31, i32 31>
79 ; CHECK-NEXT: [[TMP1:%.*]] = bitcast <4 x i32> [[LOBIT]] to <2 x i64>
80 ; CHECK-NEXT: ret <2 x i64> [[TMP1]]
82 %lobit = ashr <4 x i32> %x, <i32 31, i32 31, i32 31, i32 31>
83 %not = xor <4 x i32> %lobit, <i32 -1, i32 -1, i32 -1, i32 -1>
84 %bc = bitcast <4 x i32> %not to <2 x i64>
85 %notnot = xor <2 x i64> %bc, <i64 -1, i64 -1>
89 ; This variation has an extra bitcast at the end. This means that the 2nd xor
90 ; can be done in <4 x i32> to eliminate a bitcast regardless of canonicalizaion.
92 define <4 x i32> @is_negative_bonus_bitcast(<4 x i32> %x) {
93 ; CHECK-LABEL: @is_negative_bonus_bitcast(
94 ; CHECK-NEXT: [[LOBIT:%.*]] = ashr <4 x i32> [[X:%.*]], <i32 31, i32 31, i32 31, i32 31>
95 ; CHECK-NEXT: ret <4 x i32> [[LOBIT]]
97 %lobit = ashr <4 x i32> %x, <i32 31, i32 31, i32 31, i32 31>
98 %not = xor <4 x i32> %lobit, <i32 -1, i32 -1, i32 -1, i32 -1>
99 %bc = bitcast <4 x i32> %not to <2 x i64>
100 %notnot = xor <2 x i64> %bc, <i64 -1, i64 -1>
101 %bc2 = bitcast <2 x i64> %notnot to <4 x i32>
105 ; Bitcasts are canonicalized above bitwise logic.
107 define <2 x i8> @canonicalize_bitcast_logic_with_constant(<4 x i4> %x) {
108 ; CHECK-LABEL: @canonicalize_bitcast_logic_with_constant(
109 ; CHECK-NEXT: [[TMP1:%.*]] = bitcast <4 x i4> [[X:%.*]] to <2 x i8>
110 ; CHECK-NEXT: [[B:%.*]] = and <2 x i8> [[TMP1]], <i8 -128, i8 -128>
111 ; CHECK-NEXT: ret <2 x i8> [[B]]
113 %a = and <4 x i4> %x, <i4 0, i4 8, i4 0, i4 8>
114 %b = bitcast <4 x i4> %a to <2 x i8>
118 ; PR27925 - https://llvm.org/bugs/show_bug.cgi?id=27925
120 define <4 x i32> @bitcasts_and_bitcast(<4 x i32> %a, <8 x i16> %b) {
121 ; CHECK-LABEL: @bitcasts_and_bitcast(
122 ; CHECK-NEXT: [[TMP1:%.*]] = bitcast <8 x i16> [[B:%.*]] to <4 x i32>
123 ; CHECK-NEXT: [[BC3:%.*]] = and <4 x i32> [[TMP1]], [[A:%.*]]
124 ; CHECK-NEXT: ret <4 x i32> [[BC3]]
126 %bc1 = bitcast <4 x i32> %a to <2 x i64>
127 %bc2 = bitcast <8 x i16> %b to <2 x i64>
128 %and = and <2 x i64> %bc2, %bc1
129 %bc3 = bitcast <2 x i64> %and to <4 x i32>
133 ; The destination must have an integer element type.
134 ; FIXME: We can still eliminate one bitcast in this test by doing the logic op
135 ; in the type of the input that has an integer element type.
137 define <4 x float> @bitcasts_and_bitcast_to_fp(<4 x float> %a, <8 x i16> %b) {
138 ; CHECK-LABEL: @bitcasts_and_bitcast_to_fp(
139 ; CHECK-NEXT: [[BC1:%.*]] = bitcast <4 x float> [[A:%.*]] to <2 x i64>
140 ; CHECK-NEXT: [[BC2:%.*]] = bitcast <8 x i16> [[B:%.*]] to <2 x i64>
141 ; CHECK-NEXT: [[AND:%.*]] = and <2 x i64> [[BC2]], [[BC1]]
142 ; CHECK-NEXT: [[BC3:%.*]] = bitcast <2 x i64> [[AND]] to <4 x float>
143 ; CHECK-NEXT: ret <4 x float> [[BC3]]
145 %bc1 = bitcast <4 x float> %a to <2 x i64>
146 %bc2 = bitcast <8 x i16> %b to <2 x i64>
147 %and = and <2 x i64> %bc2, %bc1
148 %bc3 = bitcast <2 x i64> %and to <4 x float>
152 ; FIXME: Transform limited from changing vector op to integer op to avoid codegen problems.
154 define i128 @bitcast_or_bitcast(i128 %a, <2 x i64> %b) {
155 ; CHECK-LABEL: @bitcast_or_bitcast(
156 ; CHECK-NEXT: [[BC1:%.*]] = bitcast i128 [[A:%.*]] to <2 x i64>
157 ; CHECK-NEXT: [[OR:%.*]] = or <2 x i64> [[BC1]], [[B:%.*]]
158 ; CHECK-NEXT: [[BC2:%.*]] = bitcast <2 x i64> [[OR]] to i128
159 ; CHECK-NEXT: ret i128 [[BC2]]
161 %bc1 = bitcast i128 %a to <2 x i64>
162 %or = or <2 x i64> %b, %bc1
163 %bc2 = bitcast <2 x i64> %or to i128
167 ; FIXME: Transform limited from changing integer op to vector op to avoid codegen problems.
169 define <4 x i32> @bitcast_xor_bitcast(<4 x i32> %a, i128 %b) {
170 ; CHECK-LABEL: @bitcast_xor_bitcast(
171 ; CHECK-NEXT: [[BC1:%.*]] = bitcast <4 x i32> [[A:%.*]] to i128
172 ; CHECK-NEXT: [[XOR:%.*]] = xor i128 [[BC1]], [[B:%.*]]
173 ; CHECK-NEXT: [[BC2:%.*]] = bitcast i128 [[XOR]] to <4 x i32>
174 ; CHECK-NEXT: ret <4 x i32> [[BC2]]
176 %bc1 = bitcast <4 x i32> %a to i128
177 %xor = xor i128 %bc1, %b
178 %bc2 = bitcast i128 %xor to <4 x i32>
182 ; https://llvm.org/bugs/show_bug.cgi?id=6137#c6
184 define <4 x float> @bitcast_vector_select(<4 x float> %x, <2 x i64> %y, <4 x i1> %cmp) {
185 ; CHECK-LABEL: @bitcast_vector_select(
186 ; CHECK-NEXT: [[TMP1:%.*]] = bitcast <2 x i64> [[Y:%.*]] to <4 x float>
187 ; CHECK-NEXT: [[T7:%.*]] = select <4 x i1> [[CMP:%.*]], <4 x float> [[X:%.*]], <4 x float> [[TMP1]]
188 ; CHECK-NEXT: ret <4 x float> [[T7]]
190 %t4 = bitcast <4 x float> %x to <4 x i32>
191 %t5 = bitcast <2 x i64> %y to <4 x i32>
192 %t6 = select <4 x i1> %cmp, <4 x i32> %t4, <4 x i32> %t5
193 %t7 = bitcast <4 x i32> %t6 to <4 x float>
197 define float @bitcast_scalar_select_of_scalars(float %x, i32 %y, i1 %cmp) {
198 ; CHECK-LABEL: @bitcast_scalar_select_of_scalars(
199 ; CHECK-NEXT: [[TMP1:%.*]] = bitcast i32 [[Y:%.*]] to float
200 ; CHECK-NEXT: [[T7:%.*]] = select i1 [[CMP:%.*]], float [[X:%.*]], float [[TMP1]]
201 ; CHECK-NEXT: ret float [[T7]]
203 %t4 = bitcast float %x to i32
204 %t6 = select i1 %cmp, i32 %t4, i32 %y
205 %t7 = bitcast i32 %t6 to float
209 ; FIXME: We should change the select operand types to scalars, but we need to make
210 ; sure the backend can reverse that transform if needed.
212 define float @bitcast_scalar_select_type_mismatch1(float %x, <4 x i8> %y, i1 %cmp) {
213 ; CHECK-LABEL: @bitcast_scalar_select_type_mismatch1(
214 ; CHECK-NEXT: [[T4:%.*]] = bitcast float [[X:%.*]] to <4 x i8>
215 ; CHECK-NEXT: [[T6:%.*]] = select i1 [[CMP:%.*]], <4 x i8> [[T4]], <4 x i8> [[Y:%.*]]
216 ; CHECK-NEXT: [[T7:%.*]] = bitcast <4 x i8> [[T6]] to float
217 ; CHECK-NEXT: ret float [[T7]]
219 %t4 = bitcast float %x to <4 x i8>
220 %t6 = select i1 %cmp, <4 x i8> %t4, <4 x i8> %y
221 %t7 = bitcast <4 x i8> %t6 to float
225 ; FIXME: We should change the select operand types to vectors, but we need to make
226 ; sure the backend can reverse that transform if needed.
228 define <4 x i8> @bitcast_scalar_select_type_mismatch2(<4 x i8> %x, float %y, i1 %cmp) {
229 ; CHECK-LABEL: @bitcast_scalar_select_type_mismatch2(
230 ; CHECK-NEXT: [[T4:%.*]] = bitcast <4 x i8> [[X:%.*]] to float
231 ; CHECK-NEXT: [[T6:%.*]] = select i1 [[CMP:%.*]], float [[T4]], float [[Y:%.*]]
232 ; CHECK-NEXT: [[T7:%.*]] = bitcast float [[T6]] to <4 x i8>
233 ; CHECK-NEXT: ret <4 x i8> [[T7]]
235 %t4 = bitcast <4 x i8> %x to float
236 %t6 = select i1 %cmp, float %t4, float %y
237 %t7 = bitcast float %t6 to <4 x i8>
241 define <4 x float> @bitcast_scalar_select_of_vectors(<4 x float> %x, <2 x i64> %y, i1 %cmp) {
242 ; CHECK-LABEL: @bitcast_scalar_select_of_vectors(
243 ; CHECK-NEXT: [[TMP1:%.*]] = bitcast <2 x i64> [[Y:%.*]] to <4 x float>
244 ; CHECK-NEXT: [[T7:%.*]] = select i1 [[CMP:%.*]], <4 x float> [[X:%.*]], <4 x float> [[TMP1]]
245 ; CHECK-NEXT: ret <4 x float> [[T7]]
247 %t4 = bitcast <4 x float> %x to <4 x i32>
248 %t5 = bitcast <2 x i64> %y to <4 x i32>
249 %t6 = select i1 %cmp, <4 x i32> %t4, <4 x i32> %t5
250 %t7 = bitcast <4 x i32> %t6 to <4 x float>
254 ; Can't change the type of the vector select if the dest type is scalar.
256 define float @bitcast_vector_select_no_fold1(float %x, <2 x i16> %y, <4 x i1> %cmp) {
257 ; CHECK-LABEL: @bitcast_vector_select_no_fold1(
258 ; CHECK-NEXT: [[T4:%.*]] = bitcast float [[X:%.*]] to <4 x i8>
259 ; CHECK-NEXT: [[T5:%.*]] = bitcast <2 x i16> [[Y:%.*]] to <4 x i8>
260 ; CHECK-NEXT: [[T6:%.*]] = select <4 x i1> [[CMP:%.*]], <4 x i8> [[T4]], <4 x i8> [[T5]]
261 ; CHECK-NEXT: [[T7:%.*]] = bitcast <4 x i8> [[T6]] to float
262 ; CHECK-NEXT: ret float [[T7]]
264 %t4 = bitcast float %x to <4 x i8>
265 %t5 = bitcast <2 x i16> %y to <4 x i8>
266 %t6 = select <4 x i1> %cmp, <4 x i8> %t4, <4 x i8> %t5
267 %t7 = bitcast <4 x i8> %t6 to float
271 ; Can't change the type of the vector select if the number of elements in the dest type is not the same.
273 define <2 x float> @bitcast_vector_select_no_fold2(<2 x float> %x, <4 x i16> %y, <8 x i1> %cmp) {
274 ; CHECK-LABEL: @bitcast_vector_select_no_fold2(
275 ; CHECK-NEXT: [[T4:%.*]] = bitcast <2 x float> [[X:%.*]] to <8 x i8>
276 ; CHECK-NEXT: [[T5:%.*]] = bitcast <4 x i16> [[Y:%.*]] to <8 x i8>
277 ; CHECK-NEXT: [[T6:%.*]] = select <8 x i1> [[CMP:%.*]], <8 x i8> [[T4]], <8 x i8> [[T5]]
278 ; CHECK-NEXT: [[T7:%.*]] = bitcast <8 x i8> [[T6]] to <2 x float>
279 ; CHECK-NEXT: ret <2 x float> [[T7]]
281 %t4 = bitcast <2 x float> %x to <8 x i8>
282 %t5 = bitcast <4 x i16> %y to <8 x i8>
283 %t6 = select <8 x i1> %cmp, <8 x i8> %t4, <8 x i8> %t5
284 %t7 = bitcast <8 x i8> %t6 to <2 x float>
288 ; Optimize bitcasts that are extracting low element of vector. This happens because of SRoA.
290 define float @test2(<2 x float> %A, <2 x i32> %B) {
291 ; CHECK-LABEL: @test2(
292 ; CHECK-NEXT: [[TMP24:%.*]] = extractelement <2 x float> [[A:%.*]], i32 0
293 ; CHECK-NEXT: [[BC:%.*]] = bitcast <2 x i32> [[B:%.*]] to <2 x float>
294 ; CHECK-NEXT: [[TMP4:%.*]] = extractelement <2 x float> [[BC]], i32 0
295 ; CHECK-NEXT: [[ADD:%.*]] = fadd float [[TMP24]], [[TMP4]]
296 ; CHECK-NEXT: ret float [[ADD]]
298 %tmp28 = bitcast <2 x float> %A to i64 ; <i64> [#uses=2]
299 %tmp23 = trunc i64 %tmp28 to i32 ; <i32> [#uses=1]
300 %tmp24 = bitcast i32 %tmp23 to float ; <float> [#uses=1]
302 %tmp = bitcast <2 x i32> %B to i64
303 %tmp2 = trunc i64 %tmp to i32 ; <i32> [#uses=1]
304 %tmp4 = bitcast i32 %tmp2 to float ; <float> [#uses=1]
306 %add = fadd float %tmp24, %tmp4
310 ; Optimize bitcasts that are extracting other elements of a vector. This happens because of SRoA.
312 define float @test3(<2 x float> %A, <2 x i64> %B) {
313 ; CHECK-LABEL: @test3(
314 ; CHECK-NEXT: [[TMP24:%.*]] = extractelement <2 x float> [[A:%.*]], i32 1
315 ; CHECK-NEXT: [[BC2:%.*]] = bitcast <2 x i64> [[B:%.*]] to <4 x float>
316 ; CHECK-NEXT: [[TMP4:%.*]] = extractelement <4 x float> [[BC2]], i32 2
317 ; CHECK-NEXT: [[ADD:%.*]] = fadd float [[TMP24]], [[TMP4]]
318 ; CHECK-NEXT: ret float [[ADD]]
320 %tmp28 = bitcast <2 x float> %A to i64
321 %tmp29 = lshr i64 %tmp28, 32
322 %tmp23 = trunc i64 %tmp29 to i32
323 %tmp24 = bitcast i32 %tmp23 to float
325 %tmp = bitcast <2 x i64> %B to i128
326 %tmp1 = lshr i128 %tmp, 64
327 %tmp2 = trunc i128 %tmp1 to i32
328 %tmp4 = bitcast i32 %tmp2 to float
330 %add = fadd float %tmp24, %tmp4
334 ; Both bitcasts are unnecessary; change the extractelement.
336 define float @bitcast_extelt1(<2 x float> %A) {
337 ; CHECK-LABEL: @bitcast_extelt1(
338 ; CHECK-NEXT: [[BC2:%.*]] = extractelement <2 x float> [[A:%.*]], i32 0
339 ; CHECK-NEXT: ret float [[BC2]]
341 %bc1 = bitcast <2 x float> %A to <2 x i32>
342 %ext = extractelement <2 x i32> %bc1, i32 0
343 %bc2 = bitcast i32 %ext to float
347 ; Second bitcast can be folded into the first.
349 define i64 @bitcast_extelt2(<4 x float> %A) {
350 ; CHECK-LABEL: @bitcast_extelt2(
351 ; CHECK-NEXT: [[BC:%.*]] = bitcast <4 x float> [[A:%.*]] to <2 x i64>
352 ; CHECK-NEXT: [[BC2:%.*]] = extractelement <2 x i64> [[BC]], i32 1
353 ; CHECK-NEXT: ret i64 [[BC2]]
355 %bc1 = bitcast <4 x float> %A to <2 x double>
356 %ext = extractelement <2 x double> %bc1, i32 1
357 %bc2 = bitcast double %ext to i64
361 ; TODO: This should return %A.
363 define <2 x i32> @bitcast_extelt3(<2 x i32> %A) {
364 ; CHECK-LABEL: @bitcast_extelt3(
365 ; CHECK-NEXT: [[BC1:%.*]] = bitcast <2 x i32> [[A:%.*]] to <1 x i64>
366 ; CHECK-NEXT: [[EXT:%.*]] = extractelement <1 x i64> [[BC1]], i32 0
367 ; CHECK-NEXT: [[BC2:%.*]] = bitcast i64 [[EXT]] to <2 x i32>
368 ; CHECK-NEXT: ret <2 x i32> [[BC2]]
370 %bc1 = bitcast <2 x i32> %A to <1 x i64>
371 %ext = extractelement <1 x i64> %bc1, i32 0
372 %bc2 = bitcast i64 %ext to <2 x i32>
376 ; Handle the case where the input is not a vector.
378 define double @bitcast_extelt4(i128 %A) {
379 ; CHECK-LABEL: @bitcast_extelt4(
380 ; CHECK-NEXT: [[BC:%.*]] = bitcast i128 [[A:%.*]] to <2 x double>
381 ; CHECK-NEXT: [[BC2:%.*]] = extractelement <2 x double> [[BC]], i32 0
382 ; CHECK-NEXT: ret double [[BC2]]
384 %bc1 = bitcast i128 %A to <2 x i64>
385 %ext = extractelement <2 x i64> %bc1, i32 0
386 %bc2 = bitcast i64 %ext to double
390 define <2 x i32> @test4(i32 %A, i32 %B){
391 ; CHECK-LABEL: @test4(
392 ; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x i32> poison, i32 [[A:%.*]], i32 0
393 ; CHECK-NEXT: [[TMP2:%.*]] = insertelement <2 x i32> [[TMP1]], i32 [[B:%.*]], i32 1
394 ; CHECK-NEXT: ret <2 x i32> [[TMP2]]
396 %tmp38 = zext i32 %A to i64
397 %tmp32 = zext i32 %B to i64
398 %tmp33 = shl i64 %tmp32, 32
399 %ins35 = or i64 %tmp33, %tmp38
400 %tmp43 = bitcast i64 %ins35 to <2 x i32>
405 define <2 x float> @test5(float %A, float %B) {
406 ; CHECK-LABEL: @test5(
407 ; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x float> poison, float [[A:%.*]], i32 0
408 ; CHECK-NEXT: [[TMP2:%.*]] = insertelement <2 x float> [[TMP1]], float [[B:%.*]], i32 1
409 ; CHECK-NEXT: ret <2 x float> [[TMP2]]
411 %tmp37 = bitcast float %A to i32
412 %tmp38 = zext i32 %tmp37 to i64
413 %tmp31 = bitcast float %B to i32
414 %tmp32 = zext i32 %tmp31 to i64
415 %tmp33 = shl i64 %tmp32, 32
416 %ins35 = or i64 %tmp33, %tmp38
417 %tmp43 = bitcast i64 %ins35 to <2 x float>
418 ret <2 x float> %tmp43
421 define <2 x float> @test6(float %A){
422 ; CHECK-LABEL: @test6(
423 ; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x float> <float 4.200000e+01, float poison>, float [[A:%.*]], i32 1
424 ; CHECK-NEXT: ret <2 x float> [[TMP1]]
426 %tmp23 = bitcast float %A to i32
427 %tmp24 = zext i32 %tmp23 to i64
428 %tmp25 = shl i64 %tmp24, 32
429 %mask20 = or i64 %tmp25, 1109917696
430 %tmp35 = bitcast i64 %mask20 to <2 x float>
431 ret <2 x float> %tmp35
434 define i64 @ISPC0(i64 %in) {
435 ; CHECK-LABEL: @ISPC0(
436 ; CHECK-NEXT: ret i64 0
438 %out = and i64 %in, xor (i64 bitcast (<4 x i16> <i16 -1, i16 -1, i16 -1, i16 -1> to i64), i64 -1)
443 define i64 @Vec2(i64 %in) {
444 ; CHECK-LABEL: @Vec2(
445 ; CHECK-NEXT: ret i64 0
447 %out = and i64 %in, xor (i64 bitcast (<4 x i16> <i16 0, i16 0, i16 0, i16 0> to i64), i64 0)
451 define i64 @All11(i64 %in) {
452 ; CHECK-LABEL: @All11(
453 ; CHECK-NEXT: ret i64 0
455 %out = and i64 %in, xor (i64 bitcast (<2 x float> bitcast (i64 -1 to <2 x float>) to i64), i64 -1)
460 define i32 @All111(i32 %in) {
461 ; CHECK-LABEL: @All111(
462 ; CHECK-NEXT: ret i32 0
464 %out = and i32 %in, xor (i32 bitcast (<1 x float> bitcast (i32 -1 to <1 x float>) to i32), i32 -1)
468 define <vscale x 1 x i32> @ScalableAll111(<vscale x 1 x i32> %in) {
469 ; CHECK-LABEL: @ScalableAll111(
470 ; CHECK-NEXT: ret <vscale x 1 x i32> [[IN:%.*]]
472 %out = and <vscale x 1 x i32> %in, bitcast (<vscale x 2 x i16> shufflevector (<vscale x 2 x i16> insertelement (<vscale x 2 x i16> undef, i16 -1, i32 0), <vscale x 2 x i16> undef, <vscale x 2 x i32> zeroinitializer) to <vscale x 1 x i32>)
473 ret <vscale x 1 x i32> %out
476 define <2 x i16> @BitcastInsert(i32 %a) {
477 ; CHECK-LABEL: @BitcastInsert(
478 ; CHECK-NEXT: [[R:%.*]] = bitcast i32 [[A:%.*]] to <2 x i16>
479 ; CHECK-NEXT: ret <2 x i16> [[R]]
481 %v = insertelement <1 x i32> undef, i32 %a, i32 0
482 %r = bitcast <1 x i32> %v to <2 x i16>
487 define <2 x i64> @test7(<2 x i8*>* %arg) nounwind {
488 ; CHECK-LABEL: @test7(
489 ; CHECK-NEXT: [[CAST:%.*]] = bitcast <2 x i8*>* [[ARG:%.*]] to <2 x i64>*
490 ; CHECK-NEXT: [[LOAD:%.*]] = load <2 x i64>, <2 x i64>* [[CAST]], align 16
491 ; CHECK-NEXT: ret <2 x i64> [[LOAD]]
493 %cast = bitcast <2 x i8*>* %arg to <2 x i64>*
494 %load = load <2 x i64>, <2 x i64>* %cast, align 16
499 ; CHECK-LABEL: @test8(
500 ; CHECK-NEXT: ret i8 -85
502 %res = bitcast <8 x i1> <i1 true, i1 true, i1 false, i1 true, i1 false, i1 true, i1 false, i1 true> to i8
506 @g = internal unnamed_addr global i32 undef
508 define void @constant_fold_vector_to_double() {
509 ; CHECK-LABEL: @constant_fold_vector_to_double(
510 ; CHECK-NEXT: store volatile double 1.000000e+00, double* undef, align 8
511 ; CHECK-NEXT: store volatile double 1.000000e+00, double* undef, align 8
512 ; CHECK-NEXT: store volatile double 1.000000e+00, double* undef, align 8
513 ; CHECK-NEXT: store volatile double 1.000000e+00, double* undef, align 8
514 ; CHECK-NEXT: store volatile double 0xFFFFFFFFFFFFFFFF, double* undef, align 8
515 ; CHECK-NEXT: store volatile double 0x162E000004D2, double* undef, align 8
516 ; CHECK-NEXT: store volatile double bitcast (<2 x i32> <i32 1234, i32 ptrtoint (i32* @g to i32)> to double), double* undef, align 8
517 ; CHECK-NEXT: store volatile double 0x400000003F800000, double* undef, align 8
518 ; CHECK-NEXT: store volatile double 0.000000e+00, double* undef, align 8
519 ; CHECK-NEXT: store volatile double 0.000000e+00, double* undef, align 8
520 ; CHECK-NEXT: store volatile double 0.000000e+00, double* undef, align 8
521 ; CHECK-NEXT: store volatile double 0.000000e+00, double* undef, align 8
522 ; CHECK-NEXT: store volatile double 0.000000e+00, double* undef, align 8
523 ; CHECK-NEXT: store volatile double 0.000000e+00, double* undef, align 8
524 ; CHECK-NEXT: ret void
526 store volatile double bitcast (<1 x i64> <i64 4607182418800017408> to double), double* undef
527 store volatile double bitcast (<2 x i32> <i32 0, i32 1072693248> to double), double* undef
528 store volatile double bitcast (<4 x i16> <i16 0, i16 0, i16 0, i16 16368> to double), double* undef
529 store volatile double bitcast (<8 x i8> <i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 240, i8 63> to double), double* undef
531 store volatile double bitcast (<2 x i32> <i32 -1, i32 -1> to double), double* undef
532 store volatile double bitcast (<2 x i32> <i32 1234, i32 5678> to double), double* undef
534 store volatile double bitcast (<2 x i32> <i32 1234, i32 ptrtoint (i32* @g to i32)> to double), double* undef
535 store volatile double bitcast (<2 x float> <float 1.0, float 2.0> to double), double* undef
537 store volatile double bitcast (<2 x i32> zeroinitializer to double), double* undef
538 store volatile double bitcast (<4 x i16> zeroinitializer to double), double* undef
539 store volatile double bitcast (<8 x i8> zeroinitializer to double), double* undef
540 store volatile double bitcast (<16 x i4> zeroinitializer to double), double* undef
541 store volatile double bitcast (<32 x i2> zeroinitializer to double), double* undef
542 store volatile double bitcast (<64 x i1> zeroinitializer to double), double* undef
546 define void @constant_fold_vector_to_float() {
547 ; CHECK-LABEL: @constant_fold_vector_to_float(
548 ; CHECK-NEXT: store volatile float 1.000000e+00, float* undef, align 4
549 ; CHECK-NEXT: store volatile float 1.000000e+00, float* undef, align 4
550 ; CHECK-NEXT: store volatile float 1.000000e+00, float* undef, align 4
551 ; CHECK-NEXT: store volatile float 1.000000e+00, float* undef, align 4
552 ; CHECK-NEXT: ret void
554 store volatile float bitcast (<1 x i32> <i32 1065353216> to float), float* undef
555 store volatile float bitcast (<2 x i16> <i16 0, i16 16256> to float), float* undef
556 store volatile float bitcast (<4 x i8> <i8 0, i8 0, i8 128, i8 63> to float), float* undef
557 store volatile float bitcast (<32 x i1> <i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 0, i1 1, i1 1, i1 1, i1 1, i1 1, i1 1, i1 1, i1 0, i1 0> to float), float* undef
562 define void @constant_fold_vector_to_half() {
563 ; CHECK-LABEL: @constant_fold_vector_to_half(
564 ; CHECK-NEXT: store volatile half 0xH4000, half* undef, align 2
565 ; CHECK-NEXT: store volatile half 0xH4000, half* undef, align 2
566 ; CHECK-NEXT: ret void
568 store volatile half bitcast (<2 x i8> <i8 0, i8 64> to half), half* undef
569 store volatile half bitcast (<4 x i4> <i4 0, i4 0, i4 0, i4 4> to half), half* undef
573 ; Ensure that we do not crash when looking at such a weird bitcast.
574 define i8* @bitcast_from_single_element_pointer_vector_to_pointer(<1 x i8*> %ptrvec) {
575 ; CHECK-LABEL: @bitcast_from_single_element_pointer_vector_to_pointer(
576 ; CHECK-NEXT: [[TMP1:%.*]] = extractelement <1 x i8*> [[PTRVEC:%.*]], i32 0
577 ; CHECK-NEXT: ret i8* [[TMP1]]
579 %ptr = bitcast <1 x i8*> %ptrvec to i8*
585 define i8* @select_bitcast_unsized_pointer(i1 %c) {
586 ; CHECK-LABEL: @select_bitcast_unsized_pointer(
587 ; CHECK-NEXT: [[B:%.*]] = select i1 [[C:%.*]], i8* bitcast (void ()* @f1 to i8*), i8* bitcast (void ()* @f2 to i8*)
588 ; CHECK-NEXT: ret i8* [[B]]
590 %s = select i1 %c, void ()* @f1, void ()* @f2
591 %b = bitcast void ()* %s to i8*