1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -instcombine -S | FileCheck %s
4 ; Widen a select of constants to eliminate an extend.
6 define i16 @sel_sext_constants(i1 %cmp) {
7 ; CHECK-LABEL: @sel_sext_constants(
8 ; CHECK-NEXT: [[EXT:%.*]] = select i1 [[CMP:%.*]], i16 -1, i16 42
9 ; CHECK-NEXT: ret i16 [[EXT]]
11 %sel = select i1 %cmp, i8 255, i8 42
12 %ext = sext i8 %sel to i16
16 define i16 @sel_zext_constants(i1 %cmp) {
17 ; CHECK-LABEL: @sel_zext_constants(
18 ; CHECK-NEXT: [[EXT:%.*]] = select i1 [[CMP:%.*]], i16 255, i16 42
19 ; CHECK-NEXT: ret i16 [[EXT]]
21 %sel = select i1 %cmp, i8 255, i8 42
22 %ext = zext i8 %sel to i16
26 define double @sel_fpext_constants(i1 %cmp) {
27 ; CHECK-LABEL: @sel_fpext_constants(
28 ; CHECK-NEXT: [[EXT:%.*]] = select i1 [[CMP:%.*]], double -2.550000e+02, double 4.200000e+01
29 ; CHECK-NEXT: ret double [[EXT]]
31 %sel = select i1 %cmp, float -255.0, float 42.0
32 %ext = fpext float %sel to double
36 ; FIXME: We should not grow the size of the select in the next 4 cases.
38 define i64 @sel_sext(i32 %a, i1 %cmp) {
39 ; CHECK-LABEL: @sel_sext(
40 ; CHECK-NEXT: [[TMP1:%.*]] = sext i32 [[A:%.*]] to i64
41 ; CHECK-NEXT: [[EXT:%.*]] = select i1 [[CMP:%.*]], i64 [[TMP1]], i64 42
42 ; CHECK-NEXT: ret i64 [[EXT]]
44 %sel = select i1 %cmp, i32 %a, i32 42
45 %ext = sext i32 %sel to i64
49 define <4 x i64> @sel_sext_vec(<4 x i32> %a, <4 x i1> %cmp) {
50 ; CHECK-LABEL: @sel_sext_vec(
51 ; CHECK-NEXT: [[TMP1:%.*]] = sext <4 x i32> [[A:%.*]] to <4 x i64>
52 ; CHECK-NEXT: [[EXT:%.*]] = select <4 x i1> [[CMP:%.*]], <4 x i64> [[TMP1]], <4 x i64> <i64 42, i64 42, i64 42, i64 42>
53 ; CHECK-NEXT: ret <4 x i64> [[EXT]]
55 %sel = select <4 x i1> %cmp, <4 x i32> %a, <4 x i32> <i32 42, i32 42, i32 42, i32 42>
56 %ext = sext <4 x i32> %sel to <4 x i64>
60 define i64 @sel_zext(i32 %a, i1 %cmp) {
61 ; CHECK-LABEL: @sel_zext(
62 ; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[A:%.*]] to i64
63 ; CHECK-NEXT: [[EXT:%.*]] = select i1 [[CMP:%.*]], i64 [[TMP1]], i64 42
64 ; CHECK-NEXT: ret i64 [[EXT]]
66 %sel = select i1 %cmp, i32 %a, i32 42
67 %ext = zext i32 %sel to i64
71 define <4 x i64> @sel_zext_vec(<4 x i32> %a, <4 x i1> %cmp) {
72 ; CHECK-LABEL: @sel_zext_vec(
73 ; CHECK-NEXT: [[TMP1:%.*]] = zext <4 x i32> [[A:%.*]] to <4 x i64>
74 ; CHECK-NEXT: [[EXT:%.*]] = select <4 x i1> [[CMP:%.*]], <4 x i64> [[TMP1]], <4 x i64> <i64 42, i64 42, i64 42, i64 42>
75 ; CHECK-NEXT: ret <4 x i64> [[EXT]]
77 %sel = select <4 x i1> %cmp, <4 x i32> %a, <4 x i32> <i32 42, i32 42, i32 42, i32 42>
78 %ext = zext <4 x i32> %sel to <4 x i64>
82 ; FIXME: The next 18 tests cycle through trunc+select and {larger,smaller,equal} {sext,zext,fpext} {scalar,vector}.
83 ; The only cases where we eliminate an instruction are equal zext with scalar/vector, so that's probably the only
84 ; way to justify widening the select.
86 define i64 @trunc_sel_larger_sext(i32 %a, i1 %cmp) {
87 ; CHECK-LABEL: @trunc_sel_larger_sext(
88 ; CHECK-NEXT: [[TRUNC:%.*]] = trunc i32 [[A:%.*]] to i16
89 ; CHECK-NEXT: [[TMP1:%.*]] = sext i16 [[TRUNC]] to i64
90 ; CHECK-NEXT: [[EXT:%.*]] = select i1 [[CMP:%.*]], i64 [[TMP1]], i64 42
91 ; CHECK-NEXT: ret i64 [[EXT]]
93 %trunc = trunc i32 %a to i16
94 %sel = select i1 %cmp, i16 %trunc, i16 42
95 %ext = sext i16 %sel to i64
99 define <2 x i64> @trunc_sel_larger_sext_vec(<2 x i32> %a, <2 x i1> %cmp) {
100 ; CHECK-LABEL: @trunc_sel_larger_sext_vec(
101 ; CHECK-NEXT: [[TRUNC:%.*]] = trunc <2 x i32> [[A:%.*]] to <2 x i16>
102 ; CHECK-NEXT: [[TMP1:%.*]] = sext <2 x i16> [[TRUNC]] to <2 x i64>
103 ; CHECK-NEXT: [[EXT:%.*]] = select <2 x i1> [[CMP:%.*]], <2 x i64> [[TMP1]], <2 x i64> <i64 42, i64 43>
104 ; CHECK-NEXT: ret <2 x i64> [[EXT]]
106 %trunc = trunc <2 x i32> %a to <2 x i16>
107 %sel = select <2 x i1> %cmp, <2 x i16> %trunc, <2 x i16> <i16 42, i16 43>
108 %ext = sext <2 x i16> %sel to <2 x i64>
112 define i32 @trunc_sel_smaller_sext(i64 %a, i1 %cmp) {
113 ; CHECK-LABEL: @trunc_sel_smaller_sext(
114 ; CHECK-NEXT: [[TRUNC:%.*]] = trunc i64 [[A:%.*]] to i16
115 ; CHECK-NEXT: [[TMP1:%.*]] = sext i16 [[TRUNC]] to i32
116 ; CHECK-NEXT: [[EXT:%.*]] = select i1 [[CMP:%.*]], i32 [[TMP1]], i32 42
117 ; CHECK-NEXT: ret i32 [[EXT]]
119 %trunc = trunc i64 %a to i16
120 %sel = select i1 %cmp, i16 %trunc, i16 42
121 %ext = sext i16 %sel to i32
125 define <2 x i32> @trunc_sel_smaller_sext_vec(<2 x i64> %a, <2 x i1> %cmp) {
126 ; CHECK-LABEL: @trunc_sel_smaller_sext_vec(
127 ; CHECK-NEXT: [[TRUNC:%.*]] = trunc <2 x i64> [[A:%.*]] to <2 x i16>
128 ; CHECK-NEXT: [[TMP1:%.*]] = sext <2 x i16> [[TRUNC]] to <2 x i32>
129 ; CHECK-NEXT: [[EXT:%.*]] = select <2 x i1> [[CMP:%.*]], <2 x i32> [[TMP1]], <2 x i32> <i32 42, i32 43>
130 ; CHECK-NEXT: ret <2 x i32> [[EXT]]
132 %trunc = trunc <2 x i64> %a to <2 x i16>
133 %sel = select <2 x i1> %cmp, <2 x i16> %trunc, <2 x i16> <i16 42, i16 43>
134 %ext = sext <2 x i16> %sel to <2 x i32>
138 define i32 @trunc_sel_equal_sext(i32 %a, i1 %cmp) {
139 ; CHECK-LABEL: @trunc_sel_equal_sext(
140 ; CHECK-NEXT: [[TMP1:%.*]] = shl i32 [[A:%.*]], 16
141 ; CHECK-NEXT: [[TMP2:%.*]] = ashr exact i32 [[TMP1]], 16
142 ; CHECK-NEXT: [[EXT:%.*]] = select i1 [[CMP:%.*]], i32 [[TMP2]], i32 42
143 ; CHECK-NEXT: ret i32 [[EXT]]
145 %trunc = trunc i32 %a to i16
146 %sel = select i1 %cmp, i16 %trunc, i16 42
147 %ext = sext i16 %sel to i32
151 define <2 x i32> @trunc_sel_equal_sext_vec(<2 x i32> %a, <2 x i1> %cmp) {
152 ; CHECK-LABEL: @trunc_sel_equal_sext_vec(
153 ; CHECK-NEXT: [[TMP1:%.*]] = shl <2 x i32> [[A:%.*]], <i32 16, i32 16>
154 ; CHECK-NEXT: [[TMP2:%.*]] = ashr exact <2 x i32> [[TMP1]], <i32 16, i32 16>
155 ; CHECK-NEXT: [[EXT:%.*]] = select <2 x i1> [[CMP:%.*]], <2 x i32> [[TMP2]], <2 x i32> <i32 42, i32 43>
156 ; CHECK-NEXT: ret <2 x i32> [[EXT]]
158 %trunc = trunc <2 x i32> %a to <2 x i16>
159 %sel = select <2 x i1> %cmp, <2 x i16> %trunc, <2 x i16> <i16 42, i16 43>
160 %ext = sext <2 x i16> %sel to <2 x i32>
164 define i64 @trunc_sel_larger_zext(i32 %a, i1 %cmp) {
165 ; CHECK-LABEL: @trunc_sel_larger_zext(
166 ; CHECK-NEXT: [[TRUNC_MASK:%.*]] = and i32 [[A:%.*]], 65535
167 ; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[TRUNC_MASK]] to i64
168 ; CHECK-NEXT: [[EXT:%.*]] = select i1 [[CMP:%.*]], i64 [[TMP1]], i64 42
169 ; CHECK-NEXT: ret i64 [[EXT]]
171 %trunc = trunc i32 %a to i16
172 %sel = select i1 %cmp, i16 %trunc, i16 42
173 %ext = zext i16 %sel to i64
177 define <2 x i64> @trunc_sel_larger_zext_vec(<2 x i32> %a, <2 x i1> %cmp) {
178 ; CHECK-LABEL: @trunc_sel_larger_zext_vec(
179 ; CHECK-NEXT: [[TRUNC_MASK:%.*]] = and <2 x i32> [[A:%.*]], <i32 65535, i32 65535>
180 ; CHECK-NEXT: [[TMP1:%.*]] = zext <2 x i32> [[TRUNC_MASK]] to <2 x i64>
181 ; CHECK-NEXT: [[EXT:%.*]] = select <2 x i1> [[CMP:%.*]], <2 x i64> [[TMP1]], <2 x i64> <i64 42, i64 43>
182 ; CHECK-NEXT: ret <2 x i64> [[EXT]]
184 %trunc = trunc <2 x i32> %a to <2 x i16>
185 %sel = select <2 x i1> %cmp, <2 x i16> %trunc, <2 x i16> <i16 42, i16 43>
186 %ext = zext <2 x i16> %sel to <2 x i64>
190 define i32 @trunc_sel_smaller_zext(i64 %a, i1 %cmp) {
191 ; CHECK-LABEL: @trunc_sel_smaller_zext(
192 ; CHECK-NEXT: [[TMP1:%.*]] = trunc i64 [[A:%.*]] to i32
193 ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], 65535
194 ; CHECK-NEXT: [[EXT:%.*]] = select i1 [[CMP:%.*]], i32 [[TMP2]], i32 42
195 ; CHECK-NEXT: ret i32 [[EXT]]
197 %trunc = trunc i64 %a to i16
198 %sel = select i1 %cmp, i16 %trunc, i16 42
199 %ext = zext i16 %sel to i32
203 define <2 x i32> @trunc_sel_smaller_zext_vec(<2 x i64> %a, <2 x i1> %cmp) {
204 ; CHECK-LABEL: @trunc_sel_smaller_zext_vec(
205 ; CHECK-NEXT: [[TMP1:%.*]] = trunc <2 x i64> [[A:%.*]] to <2 x i32>
206 ; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i32> [[TMP1]], <i32 65535, i32 65535>
207 ; CHECK-NEXT: [[EXT:%.*]] = select <2 x i1> [[CMP:%.*]], <2 x i32> [[TMP2]], <2 x i32> <i32 42, i32 43>
208 ; CHECK-NEXT: ret <2 x i32> [[EXT]]
210 %trunc = trunc <2 x i64> %a to <2 x i16>
211 %sel = select <2 x i1> %cmp, <2 x i16> %trunc, <2 x i16> <i16 42, i16 43>
212 %ext = zext <2 x i16> %sel to <2 x i32>
216 define i32 @trunc_sel_equal_zext(i32 %a, i1 %cmp) {
217 ; CHECK-LABEL: @trunc_sel_equal_zext(
218 ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[A:%.*]], 65535
219 ; CHECK-NEXT: [[EXT:%.*]] = select i1 [[CMP:%.*]], i32 [[TMP1]], i32 42
220 ; CHECK-NEXT: ret i32 [[EXT]]
222 %trunc = trunc i32 %a to i16
223 %sel = select i1 %cmp, i16 %trunc, i16 42
224 %ext = zext i16 %sel to i32
228 define <2 x i32> @trunc_sel_equal_zext_vec(<2 x i32> %a, <2 x i1> %cmp) {
229 ; CHECK-LABEL: @trunc_sel_equal_zext_vec(
230 ; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i32> [[A:%.*]], <i32 65535, i32 65535>
231 ; CHECK-NEXT: [[EXT:%.*]] = select <2 x i1> [[CMP:%.*]], <2 x i32> [[TMP1]], <2 x i32> <i32 42, i32 43>
232 ; CHECK-NEXT: ret <2 x i32> [[EXT]]
234 %trunc = trunc <2 x i32> %a to <2 x i16>
235 %sel = select <2 x i1> %cmp, <2 x i16> %trunc, <2 x i16> <i16 42, i16 43>
236 %ext = zext <2 x i16> %sel to <2 x i32>
240 define double @trunc_sel_larger_fpext(float %a, i1 %cmp) {
241 ; CHECK-LABEL: @trunc_sel_larger_fpext(
242 ; CHECK-NEXT: [[TRUNC:%.*]] = fptrunc float [[A:%.*]] to half
243 ; CHECK-NEXT: [[TMP1:%.*]] = fpext half [[TRUNC]] to double
244 ; CHECK-NEXT: [[EXT:%.*]] = select i1 [[CMP:%.*]], double [[TMP1]], double 4.200000e+01
245 ; CHECK-NEXT: ret double [[EXT]]
247 %trunc = fptrunc float %a to half
248 %sel = select i1 %cmp, half %trunc, half 42.0
249 %ext = fpext half %sel to double
253 define <2 x double> @trunc_sel_larger_fpext_vec(<2 x float> %a, <2 x i1> %cmp) {
254 ; CHECK-LABEL: @trunc_sel_larger_fpext_vec(
255 ; CHECK-NEXT: [[TRUNC:%.*]] = fptrunc <2 x float> [[A:%.*]] to <2 x half>
256 ; CHECK-NEXT: [[TMP1:%.*]] = fpext <2 x half> [[TRUNC]] to <2 x double>
257 ; CHECK-NEXT: [[EXT:%.*]] = select <2 x i1> [[CMP:%.*]], <2 x double> [[TMP1]], <2 x double> <double 4.200000e+01, double 4.300000e+01>
258 ; CHECK-NEXT: ret <2 x double> [[EXT]]
260 %trunc = fptrunc <2 x float> %a to <2 x half>
261 %sel = select <2 x i1> %cmp, <2 x half> %trunc, <2 x half> <half 42.0, half 43.0>
262 %ext = fpext <2 x half> %sel to <2 x double>
263 ret <2 x double> %ext
266 define float @trunc_sel_smaller_fpext(double %a, i1 %cmp) {
267 ; CHECK-LABEL: @trunc_sel_smaller_fpext(
268 ; CHECK-NEXT: [[TRUNC:%.*]] = fptrunc double [[A:%.*]] to half
269 ; CHECK-NEXT: [[TMP1:%.*]] = fpext half [[TRUNC]] to float
270 ; CHECK-NEXT: [[EXT:%.*]] = select i1 [[CMP:%.*]], float [[TMP1]], float 4.200000e+01
271 ; CHECK-NEXT: ret float [[EXT]]
273 %trunc = fptrunc double %a to half
274 %sel = select i1 %cmp, half %trunc, half 42.0
275 %ext = fpext half %sel to float
279 define <2 x float> @trunc_sel_smaller_fpext_vec(<2 x double> %a, <2 x i1> %cmp) {
280 ; CHECK-LABEL: @trunc_sel_smaller_fpext_vec(
281 ; CHECK-NEXT: [[TRUNC:%.*]] = fptrunc <2 x double> [[A:%.*]] to <2 x half>
282 ; CHECK-NEXT: [[TMP1:%.*]] = fpext <2 x half> [[TRUNC]] to <2 x float>
283 ; CHECK-NEXT: [[EXT:%.*]] = select <2 x i1> [[CMP:%.*]], <2 x float> [[TMP1]], <2 x float> <float 4.200000e+01, float 4.300000e+01>
284 ; CHECK-NEXT: ret <2 x float> [[EXT]]
286 %trunc = fptrunc <2 x double> %a to <2 x half>
287 %sel = select <2 x i1> %cmp, <2 x half> %trunc, <2 x half> <half 42.0, half 43.0>
288 %ext = fpext <2 x half> %sel to <2 x float>
292 define float @trunc_sel_equal_fpext(float %a, i1 %cmp) {
293 ; CHECK-LABEL: @trunc_sel_equal_fpext(
294 ; CHECK-NEXT: [[TRUNC:%.*]] = fptrunc float [[A:%.*]] to half
295 ; CHECK-NEXT: [[TMP1:%.*]] = fpext half [[TRUNC]] to float
296 ; CHECK-NEXT: [[EXT:%.*]] = select i1 [[CMP:%.*]], float [[TMP1]], float 4.200000e+01
297 ; CHECK-NEXT: ret float [[EXT]]
299 %trunc = fptrunc float %a to half
300 %sel = select i1 %cmp, half %trunc, half 42.0
301 %ext = fpext half %sel to float
305 define <2 x float> @trunc_sel_equal_fpext_vec(<2 x float> %a, <2 x i1> %cmp) {
306 ; CHECK-LABEL: @trunc_sel_equal_fpext_vec(
307 ; CHECK-NEXT: [[TRUNC:%.*]] = fptrunc <2 x float> [[A:%.*]] to <2 x half>
308 ; CHECK-NEXT: [[TMP1:%.*]] = fpext <2 x half> [[TRUNC]] to <2 x float>
309 ; CHECK-NEXT: [[EXT:%.*]] = select <2 x i1> [[CMP:%.*]], <2 x float> [[TMP1]], <2 x float> <float 4.200000e+01, float 4.300000e+01>
310 ; CHECK-NEXT: ret <2 x float> [[EXT]]
312 %trunc = fptrunc <2 x float> %a to <2 x half>
313 %sel = select <2 x i1> %cmp, <2 x half> %trunc, <2 x half> <half 42.0, half 43.0>
314 %ext = fpext <2 x half> %sel to <2 x float>
318 define i32 @test_sext1(i1 %cca, i1 %ccb) {
319 ; CHECK-LABEL: @test_sext1(
320 ; CHECK-NEXT: [[NARROW:%.*]] = and i1 [[CCB:%.*]], [[CCA:%.*]]
321 ; CHECK-NEXT: [[R:%.*]] = sext i1 [[NARROW]] to i32
322 ; CHECK-NEXT: ret i32 [[R]]
324 %ccax = sext i1 %cca to i32
325 %r = select i1 %ccb, i32 %ccax, i32 0
329 define i32 @test_sext2(i1 %cca, i1 %ccb) {
330 ; CHECK-LABEL: @test_sext2(
331 ; CHECK-NEXT: [[NARROW:%.*]] = or i1 [[CCB:%.*]], [[CCA:%.*]]
332 ; CHECK-NEXT: [[R:%.*]] = sext i1 [[NARROW]] to i32
333 ; CHECK-NEXT: ret i32 [[R]]
335 %ccax = sext i1 %cca to i32
336 %r = select i1 %ccb, i32 -1, i32 %ccax
340 define i32 @test_sext3(i1 %cca, i1 %ccb) {
341 ; CHECK-LABEL: @test_sext3(
342 ; CHECK-NEXT: [[NOT_CCB:%.*]] = xor i1 [[CCB:%.*]], true
343 ; CHECK-NEXT: [[NARROW:%.*]] = and i1 [[NOT_CCB]], [[CCA:%.*]]
344 ; CHECK-NEXT: [[R:%.*]] = sext i1 [[NARROW]] to i32
345 ; CHECK-NEXT: ret i32 [[R]]
347 %ccax = sext i1 %cca to i32
348 %r = select i1 %ccb, i32 0, i32 %ccax
352 define i32 @test_sext4(i1 %cca, i1 %ccb) {
353 ; CHECK-LABEL: @test_sext4(
354 ; CHECK-NEXT: [[NOT_CCB:%.*]] = xor i1 [[CCB:%.*]], true
355 ; CHECK-NEXT: [[NARROW:%.*]] = or i1 [[NOT_CCB]], [[CCA:%.*]]
356 ; CHECK-NEXT: [[R:%.*]] = sext i1 [[NARROW]] to i32
357 ; CHECK-NEXT: ret i32 [[R]]
359 %ccax = sext i1 %cca to i32
360 %r = select i1 %ccb, i32 %ccax, i32 -1
364 define i32 @test_zext1(i1 %cca, i1 %ccb) {
365 ; CHECK-LABEL: @test_zext1(
366 ; CHECK-NEXT: [[NARROW:%.*]] = and i1 [[CCB:%.*]], [[CCA:%.*]]
367 ; CHECK-NEXT: [[R:%.*]] = zext i1 [[NARROW]] to i32
368 ; CHECK-NEXT: ret i32 [[R]]
370 %ccax = zext i1 %cca to i32
371 %r = select i1 %ccb, i32 %ccax, i32 0
375 define i32 @test_zext2(i1 %cca, i1 %ccb) {
376 ; CHECK-LABEL: @test_zext2(
377 ; CHECK-NEXT: [[NARROW:%.*]] = or i1 [[CCB:%.*]], [[CCA:%.*]]
378 ; CHECK-NEXT: [[R:%.*]] = zext i1 [[NARROW]] to i32
379 ; CHECK-NEXT: ret i32 [[R]]
381 %ccax = zext i1 %cca to i32
382 %r = select i1 %ccb, i32 1, i32 %ccax
386 define i32 @test_zext3(i1 %cca, i1 %ccb) {
387 ; CHECK-LABEL: @test_zext3(
388 ; CHECK-NEXT: [[NOT_CCB:%.*]] = xor i1 [[CCB:%.*]], true
389 ; CHECK-NEXT: [[NARROW:%.*]] = and i1 [[NOT_CCB]], [[CCA:%.*]]
390 ; CHECK-NEXT: [[R:%.*]] = zext i1 [[NARROW]] to i32
391 ; CHECK-NEXT: ret i32 [[R]]
393 %ccax = zext i1 %cca to i32
394 %r = select i1 %ccb, i32 0, i32 %ccax
398 define i32 @test_zext4(i1 %cca, i1 %ccb) {
399 ; CHECK-LABEL: @test_zext4(
400 ; CHECK-NEXT: [[NOT_CCB:%.*]] = xor i1 [[CCB:%.*]], true
401 ; CHECK-NEXT: [[NARROW:%.*]] = or i1 [[NOT_CCB]], [[CCA:%.*]]
402 ; CHECK-NEXT: [[R:%.*]] = zext i1 [[NARROW]] to i32
403 ; CHECK-NEXT: ret i32 [[R]]
405 %ccax = zext i1 %cca to i32
406 %r = select i1 %ccb, i32 %ccax, i32 1
410 define i32 @test_negative_sext(i1 %a, i1 %cc) {
411 ; CHECK-LABEL: @test_negative_sext(
412 ; CHECK-NEXT: [[A_EXT:%.*]] = sext i1 [[A:%.*]] to i32
413 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CC:%.*]], i32 [[A_EXT]], i32 1
414 ; CHECK-NEXT: ret i32 [[R]]
416 %a.ext = sext i1 %a to i32
417 %r = select i1 %cc, i32 %a.ext, i32 1
421 define i32 @test_negative_zext(i1 %a, i1 %cc) {
422 ; CHECK-LABEL: @test_negative_zext(
423 ; CHECK-NEXT: [[A_EXT:%.*]] = zext i1 [[A:%.*]] to i32
424 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CC:%.*]], i32 [[A_EXT]], i32 -1
425 ; CHECK-NEXT: ret i32 [[R]]
427 %a.ext = zext i1 %a to i32
428 %r = select i1 %cc, i32 %a.ext, i32 -1
432 define i32 @test_bits_sext(i8 %a, i1 %cc) {
433 ; CHECK-LABEL: @test_bits_sext(
434 ; CHECK-NEXT: [[A_EXT:%.*]] = sext i8 [[A:%.*]] to i32
435 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CC:%.*]], i32 [[A_EXT]], i32 -128
436 ; CHECK-NEXT: ret i32 [[R]]
438 %a.ext = sext i8 %a to i32
439 %r = select i1 %cc, i32 %a.ext, i32 -128
443 define i32 @test_bits_zext(i8 %a, i1 %cc) {
444 ; CHECK-LABEL: @test_bits_zext(
445 ; CHECK-NEXT: [[A_EXT:%.*]] = zext i8 [[A:%.*]] to i32
446 ; CHECK-NEXT: [[R:%.*]] = select i1 [[CC:%.*]], i32 [[A_EXT]], i32 255
447 ; CHECK-NEXT: ret i32 [[R]]
449 %a.ext = zext i8 %a to i32
450 %r = select i1 %cc, i32 %a.ext, i32 255
454 define i32 @test_op_op(i32 %a, i32 %b, i32 %c) {
455 ; CHECK-LABEL: @test_op_op(
456 ; CHECK-NEXT: [[CCA:%.*]] = icmp sgt i32 [[A:%.*]], 0
457 ; CHECK-NEXT: [[CCB:%.*]] = icmp sgt i32 [[B:%.*]], 0
458 ; CHECK-NEXT: [[CCC:%.*]] = icmp sgt i32 [[C:%.*]], 0
459 ; CHECK-NEXT: [[R_V:%.*]] = select i1 [[CCC]], i1 [[CCA]], i1 [[CCB]]
460 ; CHECK-NEXT: [[R:%.*]] = sext i1 [[R_V]] to i32
461 ; CHECK-NEXT: ret i32 [[R]]
463 %cca = icmp sgt i32 %a, 0
464 %ccax = sext i1 %cca to i32
465 %ccb = icmp sgt i32 %b, 0
466 %ccbx = sext i1 %ccb to i32
467 %ccc = icmp sgt i32 %c, 0
468 %r = select i1 %ccc, i32 %ccax, i32 %ccbx
472 define <2 x i32> @test_vectors_sext(<2 x i1> %cca, <2 x i1> %ccb) {
473 ; CHECK-LABEL: @test_vectors_sext(
474 ; CHECK-NEXT: [[NARROW:%.*]] = and <2 x i1> [[CCB:%.*]], [[CCA:%.*]]
475 ; CHECK-NEXT: [[R:%.*]] = sext <2 x i1> [[NARROW]] to <2 x i32>
476 ; CHECK-NEXT: ret <2 x i32> [[R]]
478 %ccax = sext <2 x i1> %cca to <2 x i32>
479 %r = select <2 x i1> %ccb, <2 x i32> %ccax, <2 x i32> <i32 0, i32 0>
483 define <2 x i32> @test_vectors_sext_nonsplat(<2 x i1> %cca, <2 x i1> %ccb) {
484 ; CHECK-LABEL: @test_vectors_sext_nonsplat(
485 ; CHECK-NEXT: [[NARROW:%.*]] = select <2 x i1> [[CCB:%.*]], <2 x i1> [[CCA:%.*]], <2 x i1> <i1 false, i1 true>
486 ; CHECK-NEXT: [[R:%.*]] = sext <2 x i1> [[NARROW]] to <2 x i32>
487 ; CHECK-NEXT: ret <2 x i32> [[R]]
489 %ccax = sext <2 x i1> %cca to <2 x i32>
490 %r = select <2 x i1> %ccb, <2 x i32> %ccax, <2 x i32> <i32 0, i32 -1>
494 define <2 x i32> @test_vectors_zext(<2 x i1> %cca, <2 x i1> %ccb) {
495 ; CHECK-LABEL: @test_vectors_zext(
496 ; CHECK-NEXT: [[NARROW:%.*]] = and <2 x i1> [[CCB:%.*]], [[CCA:%.*]]
497 ; CHECK-NEXT: [[R:%.*]] = zext <2 x i1> [[NARROW]] to <2 x i32>
498 ; CHECK-NEXT: ret <2 x i32> [[R]]
500 %ccax = zext <2 x i1> %cca to <2 x i32>
501 %r = select <2 x i1> %ccb, <2 x i32> %ccax, <2 x i32> <i32 0, i32 0>
505 define <2 x i32> @test_vectors_zext_nonsplat(<2 x i1> %cca, <2 x i1> %ccb) {
506 ; CHECK-LABEL: @test_vectors_zext_nonsplat(
507 ; CHECK-NEXT: [[NARROW:%.*]] = select <2 x i1> [[CCB:%.*]], <2 x i1> [[CCA:%.*]], <2 x i1> <i1 true, i1 false>
508 ; CHECK-NEXT: [[R:%.*]] = zext <2 x i1> [[NARROW]] to <2 x i32>
509 ; CHECK-NEXT: ret <2 x i32> [[R]]
511 %ccax = zext <2 x i1> %cca to <2 x i32>
512 %r = select <2 x i1> %ccb, <2 x i32> %ccax, <2 x i32> <i32 1, i32 0>
516 define <2 x i32> @scalar_select_of_vectors_sext(<2 x i1> %cca, i1 %ccb) {
517 ; CHECK-LABEL: @scalar_select_of_vectors_sext(
518 ; CHECK-NEXT: [[NARROW:%.*]] = select i1 [[CCB:%.*]], <2 x i1> [[CCA:%.*]], <2 x i1> zeroinitializer
519 ; CHECK-NEXT: [[R:%.*]] = sext <2 x i1> [[NARROW]] to <2 x i32>
520 ; CHECK-NEXT: ret <2 x i32> [[R]]
522 %ccax = sext <2 x i1> %cca to <2 x i32>
523 %r = select i1 %ccb, <2 x i32> %ccax, <2 x i32> <i32 0, i32 0>
527 define <2 x i32> @scalar_select_of_vectors_zext(<2 x i1> %cca, i1 %ccb) {
528 ; CHECK-LABEL: @scalar_select_of_vectors_zext(
529 ; CHECK-NEXT: [[NARROW:%.*]] = select i1 [[CCB:%.*]], <2 x i1> [[CCA:%.*]], <2 x i1> zeroinitializer
530 ; CHECK-NEXT: [[R:%.*]] = zext <2 x i1> [[NARROW]] to <2 x i32>
531 ; CHECK-NEXT: ret <2 x i32> [[R]]
533 %ccax = zext <2 x i1> %cca to <2 x i32>
534 %r = select i1 %ccb, <2 x i32> %ccax, <2 x i32> <i32 0, i32 0>
538 define i32 @sext_true_val_must_be_all_ones(i1 %x) {
539 ; CHECK-LABEL: @sext_true_val_must_be_all_ones(
540 ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[X:%.*]], i32 -1, i32 42, !prof !0
541 ; CHECK-NEXT: ret i32 [[SEL]]
543 %ext = sext i1 %x to i32
544 %sel = select i1 %x, i32 %ext, i32 42, !prof !0
548 define <2 x i32> @sext_true_val_must_be_all_ones_vec(<2 x i1> %x) {
549 ; CHECK-LABEL: @sext_true_val_must_be_all_ones_vec(
550 ; CHECK-NEXT: [[SEL:%.*]] = select <2 x i1> [[X:%.*]], <2 x i32> <i32 -1, i32 -1>, <2 x i32> <i32 42, i32 12>, !prof !0
551 ; CHECK-NEXT: ret <2 x i32> [[SEL]]
553 %ext = sext <2 x i1> %x to <2 x i32>
554 %sel = select <2 x i1> %x, <2 x i32> %ext, <2 x i32> <i32 42, i32 12>, !prof !0
558 define i32 @zext_true_val_must_be_one(i1 %x) {
559 ; CHECK-LABEL: @zext_true_val_must_be_one(
560 ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[X:%.*]], i32 1, i32 42, !prof !0
561 ; CHECK-NEXT: ret i32 [[SEL]]
563 %ext = zext i1 %x to i32
564 %sel = select i1 %x, i32 %ext, i32 42, !prof !0
568 define <2 x i32> @zext_true_val_must_be_one_vec(<2 x i1> %x) {
569 ; CHECK-LABEL: @zext_true_val_must_be_one_vec(
570 ; CHECK-NEXT: [[SEL:%.*]] = select <2 x i1> [[X:%.*]], <2 x i32> <i32 1, i32 1>, <2 x i32> <i32 42, i32 12>, !prof !0
571 ; CHECK-NEXT: ret <2 x i32> [[SEL]]
573 %ext = zext <2 x i1> %x to <2 x i32>
574 %sel = select <2 x i1> %x, <2 x i32> %ext, <2 x i32> <i32 42, i32 12>, !prof !0
578 define i32 @sext_false_val_must_be_zero(i1 %x) {
579 ; CHECK-LABEL: @sext_false_val_must_be_zero(
580 ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[X:%.*]], i32 42, i32 0, !prof !0
581 ; CHECK-NEXT: ret i32 [[SEL]]
583 %ext = sext i1 %x to i32
584 %sel = select i1 %x, i32 42, i32 %ext, !prof !0
588 define <2 x i32> @sext_false_val_must_be_zero_vec(<2 x i1> %x) {
589 ; CHECK-LABEL: @sext_false_val_must_be_zero_vec(
590 ; CHECK-NEXT: [[SEL:%.*]] = select <2 x i1> [[X:%.*]], <2 x i32> <i32 42, i32 12>, <2 x i32> zeroinitializer, !prof !0
591 ; CHECK-NEXT: ret <2 x i32> [[SEL]]
593 %ext = sext <2 x i1> %x to <2 x i32>
594 %sel = select <2 x i1> %x, <2 x i32> <i32 42, i32 12>, <2 x i32> %ext, !prof !0
598 define i32 @zext_false_val_must_be_zero(i1 %x) {
599 ; CHECK-LABEL: @zext_false_val_must_be_zero(
600 ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[X:%.*]], i32 42, i32 0, !prof !0
601 ; CHECK-NEXT: ret i32 [[SEL]]
603 %ext = zext i1 %x to i32
604 %sel = select i1 %x, i32 42, i32 %ext, !prof !0
608 define <2 x i32> @zext_false_val_must_be_zero_vec(<2 x i1> %x) {
609 ; CHECK-LABEL: @zext_false_val_must_be_zero_vec(
610 ; CHECK-NEXT: [[SEL:%.*]] = select <2 x i1> [[X:%.*]], <2 x i32> <i32 42, i32 12>, <2 x i32> zeroinitializer, !prof !0
611 ; CHECK-NEXT: ret <2 x i32> [[SEL]]
613 %ext = zext <2 x i1> %x to <2 x i32>
614 %sel = select <2 x i1> %x, <2 x i32> <i32 42, i32 12>, <2 x i32> %ext, !prof !0
618 !0 = !{!"branch_weights", i32 3, i32 5}