1 ; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+sse2,-sse4.1 < %s | FileCheck %s
3 ; Verify that we don't emit packed vector shifts instructions if the
4 ; condition used by the vector select is a vector of constants.
6 define <4 x float> @test1(<4 x float> %a, <4 x float> %b) {
9 ; CHECK-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,2],xmm1[1,3]
10 ; CHECK-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,2,1,3]
12 %1 = select <4 x i1> <i1 true, i1 false, i1 true, i1 false>, <4 x float> %a, <4 x float> %b
16 define <4 x float> @test2(<4 x float> %a, <4 x float> %b) {
19 ; CHECK-NEXT: movsd {{.*#+}} xmm1 = xmm0[0],xmm1[1]
20 ; CHECK-NEXT: movapd %xmm1, %xmm0
22 %1 = select <4 x i1> <i1 true, i1 true, i1 false, i1 false>, <4 x float> %a, <4 x float> %b
26 define <4 x float> @test3(<4 x float> %a, <4 x float> %b) {
29 ; CHECK-NEXT: movsd {{.*#+}} xmm0 = xmm1[0],xmm0[1]
31 %1 = select <4 x i1> <i1 false, i1 false, i1 true, i1 true>, <4 x float> %a, <4 x float> %b
35 define <4 x float> @test4(<4 x float> %a, <4 x float> %b) {
38 ; CHECK-NEXT: movaps %xmm1, %xmm0
40 %1 = select <4 x i1> <i1 false, i1 false, i1 false, i1 false>, <4 x float> %a, <4 x float> %b
44 define <4 x float> @test5(<4 x float> %a, <4 x float> %b) {
48 %1 = select <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x float> %a, <4 x float> %b
52 define <8 x i16> @test6(<8 x i16> %a, <8 x i16> %b) {
56 %1 = select <8 x i1> <i1 true, i1 false, i1 true, i1 false, i1 true, i1 false, i1 true, i1 false>, <8 x i16> %a, <8 x i16> %a
60 define <8 x i16> @test7(<8 x i16> %a, <8 x i16> %b) {
63 ; CHECK-NEXT: movsd {{.*#+}} xmm1 = xmm0[0],xmm1[1]
64 ; CHECK-NEXT: movapd %xmm1, %xmm0
66 %1 = select <8 x i1> <i1 true, i1 true, i1 true, i1 true, i1 false, i1 false, i1 false, i1 false>, <8 x i16> %a, <8 x i16> %b
70 define <8 x i16> @test8(<8 x i16> %a, <8 x i16> %b) {
73 ; CHECK-NEXT: movsd {{.*#+}} xmm0 = xmm1[0],xmm0[1]
75 %1 = select <8 x i1> <i1 false, i1 false, i1 false, i1 false, i1 true, i1 true, i1 true, i1 true>, <8 x i16> %a, <8 x i16> %b
79 define <8 x i16> @test9(<8 x i16> %a, <8 x i16> %b) {
82 ; CHECK-NEXT: movaps %xmm1, %xmm0
84 %1 = select <8 x i1> <i1 false, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false>, <8 x i16> %a, <8 x i16> %b
88 define <8 x i16> @test10(<8 x i16> %a, <8 x i16> %b) {
89 ; CHECK-LABEL: test10:
92 %1 = select <8 x i1> <i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true>, <8 x i16> %a, <8 x i16> %b
96 define <8 x i16> @test11(<8 x i16> %a, <8 x i16> %b) {
97 ; CHECK-LABEL: test11:
99 ; CHECK-NEXT: movaps {{.*#+}} xmm2 = [0,65535,65535,0,65535,65535,65535,65535]
100 ; CHECK-NEXT: andps %xmm2, %xmm0
101 ; CHECK-NEXT: andnps %xmm1, %xmm2
102 ; CHECK-NEXT: orps %xmm2, %xmm0
104 %1 = select <8 x i1> <i1 false, i1 true, i1 true, i1 false, i1 undef, i1 true, i1 true, i1 undef>, <8 x i16> %a, <8 x i16> %b
108 define <8 x i16> @test12(<8 x i16> %a, <8 x i16> %b) {
109 ; CHECK-LABEL: test12:
111 ; CHECK-NEXT: movaps %xmm1, %xmm0
113 %1 = select <8 x i1> <i1 false, i1 false, i1 undef, i1 false, i1 false, i1 false, i1 false, i1 undef>, <8 x i16> %a, <8 x i16> %b
117 define <8 x i16> @test13(<8 x i16> %a, <8 x i16> %b) {
118 ; CHECK-LABEL: test13:
120 ; CHECK-NEXT: movaps %xmm1, %xmm0
122 %1 = select <8 x i1> <i1 undef, i1 undef, i1 undef, i1 undef, i1 undef, i1 undef, i1 undef, i1 undef>, <8 x i16> %a, <8 x i16> %b
126 ; Fold (vselect (build_vector AllOnes), N1, N2) -> N1
127 define <4 x float> @test14(<4 x float> %a, <4 x float> %b) {
128 ; CHECK-LABEL: test14:
131 %1 = select <4 x i1> <i1 true, i1 undef, i1 true, i1 undef>, <4 x float> %a, <4 x float> %b
135 define <8 x i16> @test15(<8 x i16> %a, <8 x i16> %b) {
136 ; CHECK-LABEL: test15:
139 %1 = select <8 x i1> <i1 true, i1 true, i1 true, i1 undef, i1 undef, i1 true, i1 true, i1 undef>, <8 x i16> %a, <8 x i16> %b
143 ; Fold (vselect (build_vector AllZeros), N1, N2) -> N2
144 define <4 x float> @test16(<4 x float> %a, <4 x float> %b) {
145 ; CHECK-LABEL: test16:
147 ; CHECK-NEXT: movaps %xmm1, %xmm0
149 %1 = select <4 x i1> <i1 false, i1 undef, i1 false, i1 undef>, <4 x float> %a, <4 x float> %b
153 define <8 x i16> @test17(<8 x i16> %a, <8 x i16> %b) {
154 ; CHECK-LABEL: test17:
156 ; CHECK-NEXT: movaps %xmm1, %xmm0
158 %1 = select <8 x i1> <i1 false, i1 false, i1 false, i1 undef, i1 undef, i1 false, i1 false, i1 undef>, <8 x i16> %a, <8 x i16> %b
162 define <4 x float> @test18(<4 x float> %a, <4 x float> %b) {
163 ; CHECK-LABEL: test18:
165 ; CHECK-NEXT: movss {{.*#+}} xmm0 = xmm1[0],xmm0[1,2,3]
167 %1 = select <4 x i1> <i1 false, i1 true, i1 true, i1 true>, <4 x float> %a, <4 x float> %b
171 define <4 x i32> @test19(<4 x i32> %a, <4 x i32> %b) {
172 ; CHECK-LABEL: test19:
174 ; CHECK-NEXT: movss {{.*#+}} xmm0 = xmm1[0],xmm0[1,2,3]
176 %1 = select <4 x i1> <i1 false, i1 true, i1 true, i1 true>, <4 x i32> %a, <4 x i32> %b
180 define <2 x double> @test20(<2 x double> %a, <2 x double> %b) {
181 ; CHECK-LABEL: test20:
183 ; CHECK-NEXT: movsd {{.*#+}} xmm0 = xmm1[0],xmm0[1]
185 %1 = select <2 x i1> <i1 false, i1 true>, <2 x double> %a, <2 x double> %b
189 define <2 x i64> @test21(<2 x i64> %a, <2 x i64> %b) {
190 ; CHECK-LABEL: test21:
192 ; CHECK-NEXT: movsd {{.*#+}} xmm0 = xmm1[0],xmm0[1]
194 %1 = select <2 x i1> <i1 false, i1 true>, <2 x i64> %a, <2 x i64> %b
198 define <4 x float> @test22(<4 x float> %a, <4 x float> %b) {
199 ; CHECK-LABEL: test22:
201 ; CHECK-NEXT: movss {{.*#+}} xmm1 = xmm0[0],xmm1[1,2,3]
202 ; CHECK-NEXT: movaps %xmm1, %xmm0
204 %1 = select <4 x i1> <i1 true, i1 false, i1 false, i1 false>, <4 x float> %a, <4 x float> %b
208 define <4 x i32> @test23(<4 x i32> %a, <4 x i32> %b) {
209 ; CHECK-LABEL: test23:
211 ; CHECK-NEXT: movss {{.*#+}} xmm1 = xmm0[0],xmm1[1,2,3]
212 ; CHECK-NEXT: movaps %xmm1, %xmm0
214 %1 = select <4 x i1> <i1 true, i1 false, i1 false, i1 false>, <4 x i32> %a, <4 x i32> %b
218 define <2 x double> @test24(<2 x double> %a, <2 x double> %b) {
219 ; CHECK-LABEL: test24:
221 ; CHECK-NEXT: movsd {{.*#+}} xmm1 = xmm0[0],xmm1[1]
222 ; CHECK-NEXT: movapd %xmm1, %xmm0
224 %1 = select <2 x i1> <i1 true, i1 false>, <2 x double> %a, <2 x double> %b
228 define <2 x i64> @test25(<2 x i64> %a, <2 x i64> %b) {
229 ; CHECK-LABEL: test25:
231 ; CHECK-NEXT: movsd {{.*#+}} xmm1 = xmm0[0],xmm1[1]
232 ; CHECK-NEXT: movapd %xmm1, %xmm0
234 %1 = select <2 x i1> <i1 true, i1 false>, <2 x i64> %a, <2 x i64> %b
238 define <4 x float> @select_of_shuffles_0(<2 x float> %a0, <2 x float> %b0, <2 x float> %a1, <2 x float> %b1) {
239 ; CHECK-LABEL: select_of_shuffles_0:
241 ; CHECK-NEXT: unpcklpd {{.*#+}} xmm0 = xmm0[0],xmm2[0]
242 ; CHECK-NEXT: unpcklpd {{.*#+}} xmm1 = xmm1[0],xmm3[0]
243 ; CHECK-NEXT: subps %xmm1, %xmm0
245 %1 = shufflevector <2 x float> %a0, <2 x float> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
246 %2 = shufflevector <2 x float> %a1, <2 x float> undef, <4 x i32> <i32 undef, i32 undef, i32 0, i32 1>
247 %3 = select <4 x i1> <i1 false, i1 false, i1 true, i1 true>, <4 x float> %2, <4 x float> %1
248 %4 = shufflevector <2 x float> %b0, <2 x float> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
249 %5 = shufflevector <2 x float> %b1, <2 x float> undef, <4 x i32> <i32 undef, i32 undef, i32 0, i32 1>
250 %6 = select <4 x i1> <i1 false, i1 false, i1 true, i1 true>, <4 x float> %5, <4 x float> %4
251 %7 = fsub <4 x float> %3, %6
256 define <16 x double> @select_illegal(<16 x double> %a, <16 x double> %b) {
257 ; CHECK-LABEL: select_illegal:
259 ; CHECK-NEXT: movaps {{[0-9]+}}(%rsp), %xmm4
260 ; CHECK-NEXT: movaps {{[0-9]+}}(%rsp), %xmm5
261 ; CHECK-NEXT: movaps {{[0-9]+}}(%rsp), %xmm6
262 ; CHECK-NEXT: movaps {{[0-9]+}}(%rsp), %xmm7
263 ; CHECK-NEXT: movaps %xmm7, 112(%rdi)
264 ; CHECK-NEXT: movaps %xmm6, 96(%rdi)
265 ; CHECK-NEXT: movaps %xmm5, 80(%rdi)
266 ; CHECK-NEXT: movaps %xmm4, 64(%rdi)
267 ; CHECK-NEXT: movaps %xmm3, 48(%rdi)
268 ; CHECK-NEXT: movaps %xmm2, 32(%rdi)
269 ; CHECK-NEXT: movaps %xmm1, 16(%rdi)
270 ; CHECK-NEXT: movaps %xmm0, (%rdi)
271 ; CHECK-NEXT: movq %rdi, %rax
273 %sel = select <16 x i1> <i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false>, <16 x double> %a, <16 x double> %b
274 ret <16 x double> %sel