1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -passes=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: [[X_LOBIT:%.*]] = ashr <4 x i32> [[X:%.*]], splat (i32 31)
79 ; CHECK-NEXT: [[NOTNOT:%.*]] = bitcast <4 x i32> [[X_LOBIT]] to <2 x i64>
80 ; CHECK-NEXT: ret <2 x i64> [[NOTNOT]]
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: [[X_LOBIT:%.*]] = ashr <4 x i32> [[X:%.*]], splat (i32 31)
95 ; CHECK-NEXT: ret <4 x i32> [[X_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]], splat (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> [[A:%.*]], [[TMP1]]
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 define <4 x float> @bitcasts_and_bitcast_to_fp(<4 x float> %a, <8 x i16> %b) {
134 ; CHECK-LABEL: @bitcasts_and_bitcast_to_fp(
135 ; CHECK-NEXT: [[TMP1:%.*]] = bitcast <4 x float> [[A:%.*]] to <8 x i16>
136 ; CHECK-NEXT: [[TMP2:%.*]] = and <8 x i16> [[B:%.*]], [[TMP1]]
137 ; CHECK-NEXT: [[BC3:%.*]] = bitcast <8 x i16> [[TMP2]] to <4 x float>
138 ; CHECK-NEXT: ret <4 x float> [[BC3]]
140 %bc1 = bitcast <4 x float> %a to <2 x i64>
141 %bc2 = bitcast <8 x i16> %b to <2 x i64>
142 %and = and <2 x i64> %bc2, %bc1
143 %bc3 = bitcast <2 x i64> %and to <4 x float>
147 ; FIXME: Transform limited from changing vector op to integer op to avoid codegen problems.
149 define i128 @bitcast_or_bitcast(i128 %a, <2 x i64> %b) {
150 ; CHECK-LABEL: @bitcast_or_bitcast(
151 ; CHECK-NEXT: [[BC1:%.*]] = bitcast i128 [[A:%.*]] to <2 x i64>
152 ; CHECK-NEXT: [[OR:%.*]] = or <2 x i64> [[B:%.*]], [[BC1]]
153 ; CHECK-NEXT: [[BC2:%.*]] = bitcast <2 x i64> [[OR]] to i128
154 ; CHECK-NEXT: ret i128 [[BC2]]
156 %bc1 = bitcast i128 %a to <2 x i64>
157 %or = or <2 x i64> %b, %bc1
158 %bc2 = bitcast <2 x i64> %or to i128
162 ; FIXME: Transform limited from changing integer op to vector op to avoid codegen problems.
164 define <4 x i32> @bitcast_xor_bitcast(<4 x i32> %a, i128 %b) {
165 ; CHECK-LABEL: @bitcast_xor_bitcast(
166 ; CHECK-NEXT: [[BC1:%.*]] = bitcast <4 x i32> [[A:%.*]] to i128
167 ; CHECK-NEXT: [[XOR:%.*]] = xor i128 [[B:%.*]], [[BC1]]
168 ; CHECK-NEXT: [[BC2:%.*]] = bitcast i128 [[XOR]] to <4 x i32>
169 ; CHECK-NEXT: ret <4 x i32> [[BC2]]
171 %bc1 = bitcast <4 x i32> %a to i128
172 %xor = xor i128 %bc1, %b
173 %bc2 = bitcast i128 %xor to <4 x i32>
177 ; https://llvm.org/bugs/show_bug.cgi?id=6137#c6
179 define <4 x float> @bitcast_vector_select(<4 x float> %x, <2 x i64> %y, <4 x i1> %cmp) {
180 ; CHECK-LABEL: @bitcast_vector_select(
181 ; CHECK-NEXT: [[TMP1:%.*]] = bitcast <2 x i64> [[Y:%.*]] to <4 x float>
182 ; CHECK-NEXT: [[T7:%.*]] = select <4 x i1> [[CMP:%.*]], <4 x float> [[X:%.*]], <4 x float> [[TMP1]]
183 ; CHECK-NEXT: ret <4 x float> [[T7]]
185 %t4 = bitcast <4 x float> %x to <4 x i32>
186 %t5 = bitcast <2 x i64> %y to <4 x i32>
187 %t6 = select <4 x i1> %cmp, <4 x i32> %t4, <4 x i32> %t5
188 %t7 = bitcast <4 x i32> %t6 to <4 x float>
192 define float @bitcast_scalar_select_of_scalars(float %x, i32 %y, i1 %cmp) {
193 ; CHECK-LABEL: @bitcast_scalar_select_of_scalars(
194 ; CHECK-NEXT: [[TMP1:%.*]] = bitcast i32 [[Y:%.*]] to float
195 ; CHECK-NEXT: [[T7:%.*]] = select i1 [[CMP:%.*]], float [[X:%.*]], float [[TMP1]]
196 ; CHECK-NEXT: ret float [[T7]]
198 %t4 = bitcast float %x to i32
199 %t6 = select i1 %cmp, i32 %t4, i32 %y
200 %t7 = bitcast i32 %t6 to float
204 ; FIXME: We should change the select operand types to scalars, but we need to make
205 ; sure the backend can reverse that transform if needed.
207 define float @bitcast_scalar_select_type_mismatch1(float %x, <4 x i8> %y, i1 %cmp) {
208 ; CHECK-LABEL: @bitcast_scalar_select_type_mismatch1(
209 ; CHECK-NEXT: [[T4:%.*]] = bitcast float [[X:%.*]] to <4 x i8>
210 ; CHECK-NEXT: [[T6:%.*]] = select i1 [[CMP:%.*]], <4 x i8> [[T4]], <4 x i8> [[Y:%.*]]
211 ; CHECK-NEXT: [[T7:%.*]] = bitcast <4 x i8> [[T6]] to float
212 ; CHECK-NEXT: ret float [[T7]]
214 %t4 = bitcast float %x to <4 x i8>
215 %t6 = select i1 %cmp, <4 x i8> %t4, <4 x i8> %y
216 %t7 = bitcast <4 x i8> %t6 to float
220 ; FIXME: We should change the select operand types to vectors, but we need to make
221 ; sure the backend can reverse that transform if needed.
223 define <4 x i8> @bitcast_scalar_select_type_mismatch2(<4 x i8> %x, float %y, i1 %cmp) {
224 ; CHECK-LABEL: @bitcast_scalar_select_type_mismatch2(
225 ; CHECK-NEXT: [[T4:%.*]] = bitcast <4 x i8> [[X:%.*]] to float
226 ; CHECK-NEXT: [[T6:%.*]] = select i1 [[CMP:%.*]], float [[T4]], float [[Y:%.*]]
227 ; CHECK-NEXT: [[T7:%.*]] = bitcast float [[T6]] to <4 x i8>
228 ; CHECK-NEXT: ret <4 x i8> [[T7]]
230 %t4 = bitcast <4 x i8> %x to float
231 %t6 = select i1 %cmp, float %t4, float %y
232 %t7 = bitcast float %t6 to <4 x i8>
236 define <4 x float> @bitcast_scalar_select_of_vectors(<4 x float> %x, <2 x i64> %y, i1 %cmp) {
237 ; CHECK-LABEL: @bitcast_scalar_select_of_vectors(
238 ; CHECK-NEXT: [[TMP1:%.*]] = bitcast <2 x i64> [[Y:%.*]] to <4 x float>
239 ; CHECK-NEXT: [[T7:%.*]] = select i1 [[CMP:%.*]], <4 x float> [[X:%.*]], <4 x float> [[TMP1]]
240 ; CHECK-NEXT: ret <4 x float> [[T7]]
242 %t4 = bitcast <4 x float> %x to <4 x i32>
243 %t5 = bitcast <2 x i64> %y to <4 x i32>
244 %t6 = select i1 %cmp, <4 x i32> %t4, <4 x i32> %t5
245 %t7 = bitcast <4 x i32> %t6 to <4 x float>
249 ; Can't change the type of the vector select if the dest type is scalar.
251 define float @bitcast_vector_select_no_fold1(float %x, <2 x i16> %y, <4 x i1> %cmp) {
252 ; CHECK-LABEL: @bitcast_vector_select_no_fold1(
253 ; CHECK-NEXT: [[T4:%.*]] = bitcast float [[X:%.*]] to <4 x i8>
254 ; CHECK-NEXT: [[T5:%.*]] = bitcast <2 x i16> [[Y:%.*]] to <4 x i8>
255 ; CHECK-NEXT: [[T6:%.*]] = select <4 x i1> [[CMP:%.*]], <4 x i8> [[T4]], <4 x i8> [[T5]]
256 ; CHECK-NEXT: [[T7:%.*]] = bitcast <4 x i8> [[T6]] to float
257 ; CHECK-NEXT: ret float [[T7]]
259 %t4 = bitcast float %x to <4 x i8>
260 %t5 = bitcast <2 x i16> %y to <4 x i8>
261 %t6 = select <4 x i1> %cmp, <4 x i8> %t4, <4 x i8> %t5
262 %t7 = bitcast <4 x i8> %t6 to float
266 ; Can't change the type of the vector select if the number of elements in the dest type is not the same.
268 define <2 x float> @bitcast_vector_select_no_fold2(<2 x float> %x, <4 x i16> %y, <8 x i1> %cmp) {
269 ; CHECK-LABEL: @bitcast_vector_select_no_fold2(
270 ; CHECK-NEXT: [[T4:%.*]] = bitcast <2 x float> [[X:%.*]] to <8 x i8>
271 ; CHECK-NEXT: [[T5:%.*]] = bitcast <4 x i16> [[Y:%.*]] to <8 x i8>
272 ; CHECK-NEXT: [[T6:%.*]] = select <8 x i1> [[CMP:%.*]], <8 x i8> [[T4]], <8 x i8> [[T5]]
273 ; CHECK-NEXT: [[T7:%.*]] = bitcast <8 x i8> [[T6]] to <2 x float>
274 ; CHECK-NEXT: ret <2 x float> [[T7]]
276 %t4 = bitcast <2 x float> %x to <8 x i8>
277 %t5 = bitcast <4 x i16> %y to <8 x i8>
278 %t6 = select <8 x i1> %cmp, <8 x i8> %t4, <8 x i8> %t5
279 %t7 = bitcast <8 x i8> %t6 to <2 x float>
283 ; Optimize bitcasts that are extracting low element of vector. This happens because of SRoA.
285 define float @test2(<2 x float> %A, <2 x i32> %B) {
286 ; CHECK-LABEL: @test2(
287 ; CHECK-NEXT: [[T24:%.*]] = extractelement <2 x float> [[A:%.*]], i64 0
288 ; CHECK-NEXT: [[BC:%.*]] = bitcast <2 x i32> [[B:%.*]] to <2 x float>
289 ; CHECK-NEXT: [[T4:%.*]] = extractelement <2 x float> [[BC]], i64 0
290 ; CHECK-NEXT: [[ADD:%.*]] = fadd float [[T24]], [[T4]]
291 ; CHECK-NEXT: ret float [[ADD]]
293 %t28 = bitcast <2 x float> %A to i64 ; <i64> [#uses=2]
294 %t23 = trunc i64 %t28 to i32 ; <i32> [#uses=1]
295 %t24 = bitcast i32 %t23 to float ; <float> [#uses=1]
297 %t = bitcast <2 x i32> %B to i64
298 %t2 = trunc i64 %t to i32 ; <i32> [#uses=1]
299 %t4 = bitcast i32 %t2 to float ; <float> [#uses=1]
301 %add = fadd float %t24, %t4
305 ; Optimize bitcasts that are extracting other elements of a vector. This happens because of SRoA.
307 define float @test3(<2 x float> %A, <2 x i64> %B) {
308 ; CHECK-LABEL: @test3(
309 ; CHECK-NEXT: [[T24:%.*]] = extractelement <2 x float> [[A:%.*]], i64 1
310 ; CHECK-NEXT: [[BC2:%.*]] = bitcast <2 x i64> [[B:%.*]] to <4 x float>
311 ; CHECK-NEXT: [[T4:%.*]] = extractelement <4 x float> [[BC2]], i64 2
312 ; CHECK-NEXT: [[ADD:%.*]] = fadd float [[T24]], [[T4]]
313 ; CHECK-NEXT: ret float [[ADD]]
315 %t28 = bitcast <2 x float> %A to i64
316 %t29 = lshr i64 %t28, 32
317 %t23 = trunc i64 %t29 to i32
318 %t24 = bitcast i32 %t23 to float
320 %t = bitcast <2 x i64> %B to i128
321 %t1 = lshr i128 %t, 64
322 %t2 = trunc i128 %t1 to i32
323 %t4 = bitcast i32 %t2 to float
325 %add = fadd float %t24, %t4
329 ; Both bitcasts are unnecessary; change the extractelement.
331 define float @bitcast_extelt1(<2 x float> %A) {
332 ; CHECK-LABEL: @bitcast_extelt1(
333 ; CHECK-NEXT: [[BC2:%.*]] = extractelement <2 x float> [[A:%.*]], i64 0
334 ; CHECK-NEXT: ret float [[BC2]]
336 %bc1 = bitcast <2 x float> %A to <2 x i32>
337 %ext = extractelement <2 x i32> %bc1, i32 0
338 %bc2 = bitcast i32 %ext to float
342 ; Second bitcast can be folded into the first.
344 define i64 @bitcast_extelt2(<4 x float> %A) {
345 ; CHECK-LABEL: @bitcast_extelt2(
346 ; CHECK-NEXT: [[BC:%.*]] = bitcast <4 x float> [[A:%.*]] to <2 x i64>
347 ; CHECK-NEXT: [[BC2:%.*]] = extractelement <2 x i64> [[BC]], i64 1
348 ; CHECK-NEXT: ret i64 [[BC2]]
350 %bc1 = bitcast <4 x float> %A to <2 x double>
351 %ext = extractelement <2 x double> %bc1, i32 1
352 %bc2 = bitcast double %ext to i64
356 define <2 x i32> @bitcast_extelt3(<2 x i32> %A) {
357 ; CHECK-LABEL: @bitcast_extelt3(
358 ; CHECK-NEXT: ret <2 x i32> [[A:%.*]]
360 %bc1 = bitcast <2 x i32> %A to <1 x i64>
361 %ext = extractelement <1 x i64> %bc1, i32 0
362 %bc2 = bitcast i64 %ext to <2 x i32>
366 ; Handle the case where the input is not a vector.
368 define double @bitcast_extelt4(i128 %A) {
369 ; CHECK-LABEL: @bitcast_extelt4(
370 ; CHECK-NEXT: [[EXT:%.*]] = trunc i128 [[A:%.*]] to i64
371 ; CHECK-NEXT: [[BC2:%.*]] = bitcast i64 [[EXT]] to double
372 ; CHECK-NEXT: ret double [[BC2]]
374 %bc1 = bitcast i128 %A to <2 x i64>
375 %ext = extractelement <2 x i64> %bc1, i32 0
376 %bc2 = bitcast i64 %ext to double
380 define <2 x i32> @test4(i32 %A, i32 %B){
381 ; CHECK-LABEL: @test4(
382 ; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x i32> poison, i32 [[A:%.*]], i64 0
383 ; CHECK-NEXT: [[T43:%.*]] = insertelement <2 x i32> [[TMP1]], i32 [[B:%.*]], i64 1
384 ; CHECK-NEXT: ret <2 x i32> [[T43]]
386 %t38 = zext i32 %A to i64
387 %t32 = zext i32 %B to i64
388 %t33 = shl i64 %t32, 32
389 %ins35 = or i64 %t33, %t38
390 %t43 = bitcast i64 %ins35 to <2 x i32>
395 define <2 x float> @test5(float %A, float %B) {
396 ; CHECK-LABEL: @test5(
397 ; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x float> poison, float [[A:%.*]], i64 0
398 ; CHECK-NEXT: [[T43:%.*]] = insertelement <2 x float> [[TMP1]], float [[B:%.*]], i64 1
399 ; CHECK-NEXT: ret <2 x float> [[T43]]
401 %t37 = bitcast float %A to i32
402 %t38 = zext i32 %t37 to i64
403 %t31 = bitcast float %B to i32
404 %t32 = zext i32 %t31 to i64
405 %t33 = shl i64 %t32, 32
406 %ins35 = or i64 %t33, %t38
407 %t43 = bitcast i64 %ins35 to <2 x float>
411 define <2 x float> @test6(float %A){
412 ; CHECK-LABEL: @test6(
413 ; CHECK-NEXT: [[T35:%.*]] = insertelement <2 x float> <float 4.200000e+01, float poison>, float [[A:%.*]], i64 1
414 ; CHECK-NEXT: ret <2 x float> [[T35]]
416 %t23 = bitcast float %A to i32
417 %t24 = zext i32 %t23 to i64
418 %t25 = shl i64 %t24, 32
419 %mask20 = or i64 %t25, 1109917696
420 %t35 = bitcast i64 %mask20 to <2 x float>
424 define i64 @ISPC0(i64 %in) {
425 ; CHECK-LABEL: @ISPC0(
426 ; CHECK-NEXT: ret i64 0
428 %out = and i64 %in, xor (i64 bitcast (<4 x i16> <i16 -1, i16 -1, i16 -1, i16 -1> to i64), i64 -1)
433 define i64 @Vec2(i64 %in) {
434 ; CHECK-LABEL: @Vec2(
435 ; CHECK-NEXT: ret i64 0
437 %out = and i64 %in, xor (i64 bitcast (<4 x i16> <i16 0, i16 0, i16 0, i16 0> to i64), i64 0)
441 define i64 @All11(i64 %in) {
442 ; CHECK-LABEL: @All11(
443 ; CHECK-NEXT: ret i64 0
445 %out = and i64 %in, xor (i64 bitcast (<2 x float> bitcast (i64 -1 to <2 x float>) to i64), i64 -1)
450 define i32 @All111(i32 %in) {
451 ; CHECK-LABEL: @All111(
452 ; CHECK-NEXT: ret i32 0
454 %out = and i32 %in, xor (i32 bitcast (<1 x float> bitcast (i32 -1 to <1 x float>) to i32), i32 -1)
458 define <2 x i16> @BitcastInsert(i32 %a) {
459 ; CHECK-LABEL: @BitcastInsert(
460 ; CHECK-NEXT: [[R:%.*]] = bitcast i32 [[A:%.*]] to <2 x i16>
461 ; CHECK-NEXT: ret <2 x i16> [[R]]
463 %v = insertelement <1 x i32> poison, i32 %a, i32 0
464 %r = bitcast <1 x i32> %v to <2 x i16>
469 define <2 x i64> @test7(ptr %arg) nounwind {
470 ; CHECK-LABEL: @test7(
471 ; CHECK-NEXT: [[LOAD:%.*]] = load <2 x i64>, ptr [[ARG:%.*]], align 16
472 ; CHECK-NEXT: ret <2 x i64> [[LOAD]]
474 %load = load <2 x i64>, ptr %arg, align 16
479 ; CHECK-LABEL: @test8(
480 ; CHECK-NEXT: ret i8 -85
482 %res = bitcast <8 x i1> <i1 true, i1 true, i1 false, i1 true, i1 false, i1 true, i1 false, i1 true> to i8
486 @g = internal unnamed_addr global i32 undef
488 define void @constant_fold_vector_to_double() {
489 ; CHECK-LABEL: @constant_fold_vector_to_double(
490 ; CHECK-NEXT: store volatile double 1.000000e+00, ptr undef, align 8
491 ; CHECK-NEXT: store volatile double 1.000000e+00, ptr undef, align 8
492 ; CHECK-NEXT: store volatile double 1.000000e+00, ptr undef, align 8
493 ; CHECK-NEXT: store volatile double 1.000000e+00, ptr undef, align 8
494 ; CHECK-NEXT: store volatile double 0xFFFFFFFFFFFFFFFF, ptr undef, align 8
495 ; CHECK-NEXT: store volatile double 0x162E000004D2, ptr undef, align 8
496 ; CHECK-NEXT: store volatile double bitcast (<2 x i32> <i32 1234, i32 ptrtoint (ptr @g to i32)> to double), ptr undef, align 8
497 ; CHECK-NEXT: store volatile double 0x400000003F800000, ptr undef, align 8
498 ; CHECK-NEXT: store volatile double 0.000000e+00, ptr undef, align 8
499 ; CHECK-NEXT: store volatile double 0.000000e+00, ptr undef, align 8
500 ; CHECK-NEXT: store volatile double 0.000000e+00, ptr undef, align 8
501 ; CHECK-NEXT: store volatile double 0.000000e+00, ptr undef, align 8
502 ; CHECK-NEXT: store volatile double 0.000000e+00, ptr undef, align 8
503 ; CHECK-NEXT: store volatile double 0.000000e+00, ptr undef, align 8
504 ; CHECK-NEXT: ret void
506 store volatile double bitcast (<1 x i64> <i64 4607182418800017408> to double), ptr undef
507 store volatile double bitcast (<2 x i32> <i32 0, i32 1072693248> to double), ptr undef
508 store volatile double bitcast (<4 x i16> <i16 0, i16 0, i16 0, i16 16368> to double), ptr undef
509 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), ptr undef
511 store volatile double bitcast (<2 x i32> <i32 -1, i32 -1> to double), ptr undef
512 store volatile double bitcast (<2 x i32> <i32 1234, i32 5678> to double), ptr undef
514 store volatile double bitcast (<2 x i32> <i32 1234, i32 ptrtoint (ptr @g to i32)> to double), ptr undef
515 store volatile double bitcast (<2 x float> <float 1.0, float 2.0> to double), ptr undef
517 store volatile double bitcast (<2 x i32> zeroinitializer to double), ptr undef
518 store volatile double bitcast (<4 x i16> zeroinitializer to double), ptr undef
519 store volatile double bitcast (<8 x i8> zeroinitializer to double), ptr undef
520 store volatile double bitcast (<16 x i4> zeroinitializer to double), ptr undef
521 store volatile double bitcast (<32 x i2> zeroinitializer to double), ptr undef
522 store volatile double bitcast (<64 x i1> zeroinitializer to double), ptr undef
526 define void @constant_fold_vector_to_float() {
527 ; CHECK-LABEL: @constant_fold_vector_to_float(
528 ; CHECK-NEXT: store volatile float 1.000000e+00, ptr undef, align 4
529 ; CHECK-NEXT: store volatile float 1.000000e+00, ptr undef, align 4
530 ; CHECK-NEXT: store volatile float 1.000000e+00, ptr undef, align 4
531 ; CHECK-NEXT: store volatile float 1.000000e+00, ptr undef, align 4
532 ; CHECK-NEXT: ret void
534 store volatile float bitcast (<1 x i32> <i32 1065353216> to float), ptr undef
535 store volatile float bitcast (<2 x i16> <i16 0, i16 16256> to float), ptr undef
536 store volatile float bitcast (<4 x i8> <i8 0, i8 0, i8 128, i8 63> to float), ptr undef
537 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), ptr undef
542 define void @constant_fold_vector_to_half() {
543 ; CHECK-LABEL: @constant_fold_vector_to_half(
544 ; CHECK-NEXT: store volatile half 0xH4000, ptr undef, align 2
545 ; CHECK-NEXT: store volatile half 0xH4000, ptr undef, align 2
546 ; CHECK-NEXT: ret void
548 store volatile half bitcast (<2 x i8> <i8 0, i8 64> to half), ptr undef
549 store volatile half bitcast (<4 x i4> <i4 0, i4 0, i4 0, i4 4> to half), ptr undef
553 ; Ensure that we do not crash when looking at such a weird bitcast.
554 define ptr @bitcast_from_single_element_pointer_vector_to_pointer(<1 x ptr> %ptrvec) {
555 ; CHECK-LABEL: @bitcast_from_single_element_pointer_vector_to_pointer(
556 ; CHECK-NEXT: [[TMP1:%.*]] = extractelement <1 x ptr> [[PTRVEC:%.*]], i64 0
557 ; CHECK-NEXT: ret ptr [[TMP1]]
559 %ptr = bitcast <1 x ptr> %ptrvec to ptr