[X86][XOP] Add placeholder VPERMIL2 combining tests

llvm-svn: 268450

1 files changed, 62 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/X86/vector-shuffle-combining-xop.ll b/llvm/test/CodeGen/X86/vector-shuffle-combining-xop.ll
index dda93aca9b8..bf547bd1577 100644
--- a/llvm/test/CodeGen/X86/vector-shuffle-combining-xop.ll
+++ b/llvm/test/CodeGen/X86/vector-shuffle-combining-xop.ll
@@ -10,6 +10,68 @@ declare <8 x float> @llvm.x86.xop.vpermil2ps.256(<8 x float>, <8 x float>, <8 x
 
 declare <16 x i8> @llvm.x86.xop.vpperm(<16 x i8>, <16 x i8>, <16 x i8>) nounwind readnone
 
+define <2 x double> @combine_vpermil2pd_identity(<2 x double> %a0, <2 x double> %a1) {
+; CHECK-LABEL: combine_vpermil2pd_identity:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    vmovsd {{.*#+}} xmm2 = mem[0],zero
+; CHECK-NEXT:    vpermil2pd $0, %xmm2, %xmm0, %xmm1, %xmm0
+; CHECK-NEXT:    vpermil2pd $0, %xmm2, %xmm0, %xmm0, %xmm0
+; CHECK-NEXT:    retq
+  %mask = bitcast <2 x i64> <i64 2, i64 0> to <2 x double>
+  %res0 = call <2 x double> @llvm.x86.xop.vpermil2pd(<2 x double> %a1, <2 x double> %a0, <2 x double> %mask, i8 0)
+  %res1 = call <2 x double> @llvm.x86.xop.vpermil2pd(<2 x double> %res0, <2 x double> undef, <2 x double> %mask, i8 0)
+  ret <2 x double> %res1
+}
+
+define <4 x double> @combine_vpermil2pd256_identity(<4 x double> %a0, <4 x double> %a1) {
+; CHECK-LABEL: combine_vpermil2pd256_identity:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    vmovapd {{.*#+}} ymm2 = [9.881313e-324,0.000000e+00,9.881313e-324,0.000000e+00]
+; CHECK-NEXT:    vpermil2pd $0, %ymm2, %ymm0, %ymm1, %ymm0
+; CHECK-NEXT:    vpermil2pd $0, %ymm2, %ymm0, %ymm0, %ymm0
+; CHECK-NEXT:    retq
+  %mask = bitcast <4 x i64> <i64 2, i64 0, i64 2, i64 0> to <4 x double>
+  %res0 = call <4 x double> @llvm.x86.xop.vpermil2pd.256(<4 x double> %a1, <4 x double> %a0, <4 x double> %mask, i8 0)
+  %res1 = call <4 x double> @llvm.x86.xop.vpermil2pd.256(<4 x double> %res0, <4 x double> undef, <4 x double> %mask, i8 0)
+  ret <4 x double> %res1
+}
+
+define <4 x float> @combine_vpermil2ps_identity(<4 x float> %a0, <4 x float> %a1) {
+; CHECK-LABEL: combine_vpermil2ps_identity:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    vmovaps {{.*#+}} xmm2 = [4.203895e-45,2.802597e-45,1.401298e-45,0.000000e+00]
+; CHECK-NEXT:    vpermil2ps $0, %xmm2, %xmm0, %xmm1, %xmm0
+; CHECK-NEXT:    vpermil2ps $0, %xmm2, %xmm0, %xmm0, %xmm0
+; CHECK-NEXT:    retq
+  %mask = bitcast <4 x i32> <i32 3, i32 2, i32 1, i32 0> to <4 x float>
+  %res0 = call <4 x float> @llvm.x86.xop.vpermil2ps(<4 x float> %a1, <4 x float> %a0, <4 x float> %mask, i8 0)
+  %res1 = call <4 x float> @llvm.x86.xop.vpermil2ps(<4 x float> %res0, <4 x float> undef, <4 x float> %mask, i8 0)
+  ret <4 x float> %res1
+}
+
+define <8 x float> @combine_vpermil2ps256_identity(<8 x float> %a0, <8 x float> %a1) {
+; CHECK-LABEL: combine_vpermil2ps256_identity:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    vmovaps {{.*#+}} ymm2 = [4.203895e-45,2.802597e-45,1.401298e-45,0.000000e+00,1.401298e-45,0.000000e+00,4.203895e-45,2.802597e-45]
+; CHECK-NEXT:    vpermil2ps $0, %ymm2, %ymm0, %ymm1, %ymm0
+; CHECK-NEXT:    vpermil2ps $0, %ymm2, %ymm0, %ymm0, %ymm0
+; CHECK-NEXT:    retq
+  %mask = bitcast <8 x i32> <i32 3, i32 2, i32 1, i32 0, i32 1, i32 0, i32 3, i32 2> to <8 x float>
+  %res0 = call <8 x float> @llvm.x86.xop.vpermil2ps.256(<8 x float> %a1, <8 x float> %a0, <8 x float> %mask, i8 0)
+  %res1 = call <8 x float> @llvm.x86.xop.vpermil2ps.256(<8 x float> %res0, <8 x float> undef, <8 x float> %mask, i8 0)
+  ret <8 x float> %res1
+}
+
+define <4 x float> @combine_vpermil2ps_blend_with_zero(<4 x float> %a0, <4 x float> %a1) {
+; CHECK-LABEL: combine_vpermil2ps_blend_with_zero:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    vpermil2ps $2, {{.*}}(%rip), %xmm1, %xmm0, %xmm0
+; CHECK-NEXT:    retq
+  %mask = bitcast <4 x i32> <i32 8, i32 1, i32 2, i32 3> to <4 x float>
+  %res0 = call <4 x float> @llvm.x86.xop.vpermil2ps(<4 x float> %a0, <4 x float> %a1, <4 x float> %mask, i8 2)
+  ret <4 x float> %res0
+}
+
 define <16 x i8> @combine_vpperm_identity(<16 x i8> %a0, <16 x i8> %a1) {
 ; CHECK-LABEL: combine_vpperm_identity:
 ; CHECK:       # BB#0: