diff options
| author | Sanjay Patel <spatel@rotateright.com> | 2018-12-19 20:35:28 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2018-12-19 20:35:28 +0000 |
| commit | ca6434de37db723c9d6158394b30dc9c863f0a2b (patch) | |
| tree | b811f722806ab64d306f7daa92b878bb8ae32da8 | |
| parent | 610453e418cfdc9026b30f7b7f338fe3066afd3c (diff) | |
| download | bcm5719-llvm-ca6434de37db723c9d6158394b30dc9c863f0a2b.tar.gz bcm5719-llvm-ca6434de37db723c9d6158394b30dc9c863f0a2b.zip | |
[x86] add test to show ddup hole; NFC (PR37502)
llvm-svn: 349680
| -rw-r--r-- | llvm/test/CodeGen/X86/build-vector-128.ll | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/build-vector-128.ll b/llvm/test/CodeGen/X86/build-vector-128.ll index 6c0c2d30c31..9702e4be22a 100644 --- a/llvm/test/CodeGen/X86/build-vector-128.ll +++ b/llvm/test/CodeGen/X86/build-vector-128.ll @@ -507,3 +507,68 @@ define <4 x i32> @test_buildvector_v4i32_splat_zext_i8(i8 %in) { %splat = shufflevector <4 x i32> %insert, <4 x i32> undef, <4 x i32> zeroinitializer ret <4 x i32> %splat } + +; PR37502 - https://bugs.llvm.org/show_bug.cgi?id=37502 +; Don't use a series of insertps when movddup will do. + +define <4 x float> @PR37502(float %x, float %y) { +; SSE2-32-LABEL: PR37502: +; SSE2-32: # %bb.0: +; SSE2-32-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero +; SSE2-32-NEXT: movlhps {{.*#+}} xmm0 = xmm0[0,0] +; SSE2-32-NEXT: retl +; +; SSE2-64-LABEL: PR37502: +; SSE2-64: # %bb.0: +; SSE2-64-NEXT: unpcklps {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1] +; SSE2-64-NEXT: movlhps {{.*#+}} xmm0 = xmm0[0,0] +; SSE2-64-NEXT: retq +; +; SSE41-32-LABEL: PR37502: +; SSE41-32: # %bb.0: +; SSE41-32-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero +; SSE41-32-NEXT: insertps {{.*#+}} xmm0 = xmm0[0,1],mem[0],xmm0[3] +; SSE41-32-NEXT: insertps {{.*#+}} xmm0 = xmm0[0,1,2],mem[0] +; SSE41-32-NEXT: retl +; +; SSE41-64-LABEL: PR37502: +; SSE41-64: # %bb.0: +; SSE41-64-NEXT: movaps %xmm0, %xmm2 +; SSE41-64-NEXT: insertps {{.*#+}} xmm2 = xmm2[0],xmm1[0],xmm2[2,3] +; SSE41-64-NEXT: insertps {{.*#+}} xmm2 = xmm2[0,1],xmm0[0],xmm2[3] +; SSE41-64-NEXT: insertps {{.*#+}} xmm2 = xmm2[0,1,2],xmm1[0] +; SSE41-64-NEXT: movaps %xmm2, %xmm0 +; SSE41-64-NEXT: retq +; +; AVX1-32-LABEL: PR37502: +; AVX1-32: # %bb.0: +; AVX1-32-NEXT: vmovsd {{.*#+}} xmm0 = mem[0],zero +; AVX1-32-NEXT: vinsertps {{.*#+}} xmm0 = xmm0[0,1],mem[0],xmm0[3] +; AVX1-32-NEXT: vinsertps {{.*#+}} xmm0 = xmm0[0,1,2],mem[0] +; AVX1-32-NEXT: retl +; +; AVX1-64-LABEL: PR37502: +; AVX1-64: # %bb.0: +; AVX1-64-NEXT: vinsertps {{.*#+}} xmm2 = xmm0[0],xmm1[0],xmm0[2,3] +; AVX1-64-NEXT: vinsertps {{.*#+}} xmm0 = xmm2[0,1],xmm0[0],xmm2[3] +; AVX1-64-NEXT: vinsertps {{.*#+}} xmm0 = xmm0[0,1,2],xmm1[0] +; AVX1-64-NEXT: retq +; +; AVX2-32-LABEL: PR37502: +; AVX2-32: # %bb.0: +; AVX2-32-NEXT: vmovsd {{.*#+}} xmm0 = mem[0],zero +; AVX2-32-NEXT: vmovddup {{.*#+}} xmm0 = xmm0[0,0] +; AVX2-32-NEXT: retl +; +; AVX2-64-LABEL: PR37502: +; AVX2-64: # %bb.0: +; AVX2-64-NEXT: vunpcklps {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1] +; AVX2-64-NEXT: vmovddup {{.*#+}} xmm0 = xmm0[0,0] +; AVX2-64-NEXT: retq + %i0 = insertelement <4 x float> undef, float %x, i32 0 + %i1 = insertelement <4 x float> %i0, float %y, i32 1 + %i2 = insertelement <4 x float> %i1, float %x, i32 2 + %i3 = insertelement <4 x float> %i2, float %y, i32 3 + ret <4 x float> %i3 +} + |
