[X86][SSE41] Added test cases for improving insertps shuffles

As mentioned on D14261, an upcoming patch will improve combines of insertps instructions. 

llvm-svn: 256706
This commit is contained in:
Simon Pilgrim 2016-01-03 17:14:15 +00:00
parent d17a1df783
commit 569106fe99
1 changed files with 111 additions and 0 deletions

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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+sse4.1 | FileCheck %s --check-prefix=ALL --check-prefix=SSE --check-prefix=SSE41
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+avx | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX1
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+avx2 | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX2
define <4 x float> @shuffle_v4f32_0z27(<4 x float> %x, <4 x float> %a) {
; SSE-LABEL: shuffle_v4f32_0z27:
; SSE: # BB#0:
; SSE-NEXT: xorps %xmm2, %xmm2
; SSE-NEXT: blendps {{.*#+}} xmm0 = xmm0[0],xmm2[1],xmm0[2,3]
; SSE-NEXT: insertps {{.*#+}} xmm0 = xmm0[0,1,2],xmm1[2]
; SSE-NEXT: retq
;
; AVX-LABEL: shuffle_v4f32_0z27:
; AVX: # BB#0:
; AVX-NEXT: vxorps %xmm2, %xmm2, %xmm2
; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm0[0],xmm2[1],xmm0[2,3]
; AVX-NEXT: vinsertps {{.*#+}} xmm0 = xmm0[0,1,2],xmm1[2]
; AVX-NEXT: retq
%vecext = extractelement <4 x float> %x, i32 0
%vecinit = insertelement <4 x float> undef, float %vecext, i32 0
%vecinit1 = insertelement <4 x float> %vecinit, float 0.0, i32 1
%vecinit3 = shufflevector <4 x float> %vecinit1, <4 x float> %x, <4 x i32> <i32 0, i32 1, i32 6, i32 undef>
%vecinit5 = shufflevector <4 x float> %vecinit3, <4 x float> %a, <4 x i32> <i32 0, i32 1, i32 2, i32 6>
ret <4 x float> %vecinit5
}
define <4 x float> @shuffle_v4f32_0zz4(<4 x float> %xyzw, <4 x float> %abcd) {
; SSE-LABEL: shuffle_v4f32_0zz4:
; SSE: # BB#0:
; SSE-NEXT: xorps %xmm2, %xmm2
; SSE-NEXT: blendps {{.*#+}} xmm0 = xmm0[0],xmm2[1,2,3]
; SSE-NEXT: insertps {{.*#+}} xmm0 = xmm0[0,1,2],xmm1[0]
; SSE-NEXT: retq
;
; AVX-LABEL: shuffle_v4f32_0zz4:
; AVX: # BB#0:
; AVX-NEXT: vxorps %xmm2, %xmm2, %xmm2
; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm0[0],xmm2[1,2,3]
; AVX-NEXT: vinsertps {{.*#+}} xmm0 = xmm0[0,1,2],xmm1[0]
; AVX-NEXT: retq
%vecext = extractelement <4 x float> %xyzw, i32 0
%vecinit = insertelement <4 x float> undef, float %vecext, i32 0
%vecinit1 = insertelement <4 x float> %vecinit, float 0.000000e+00, i32 1
%vecinit2 = insertelement <4 x float> %vecinit1, float 0.000000e+00, i32 2
%vecinit4 = shufflevector <4 x float> %vecinit2, <4 x float> %abcd, <4 x i32> <i32 0, i32 1, i32 2, i32 4>
ret <4 x float> %vecinit4
}
define <4 x float> @shuffle_v4f32_0z24(<4 x float> %xyzw, <4 x float> %abcd) {
; SSE-LABEL: shuffle_v4f32_0z24:
; SSE: # BB#0:
; SSE-NEXT: xorps %xmm2, %xmm2
; SSE-NEXT: blendps {{.*#+}} xmm0 = xmm0[0],xmm2[1],xmm0[2,3]
; SSE-NEXT: insertps {{.*#+}} xmm0 = xmm0[0,1,2],xmm1[0]
; SSE-NEXT: retq
;
; AVX-LABEL: shuffle_v4f32_0z24:
; AVX: # BB#0:
; AVX-NEXT: vxorps %xmm2, %xmm2, %xmm2
; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm0[0],xmm2[1],xmm0[2,3]
; AVX-NEXT: vinsertps {{.*#+}} xmm0 = xmm0[0,1,2],xmm1[0]
; AVX-NEXT: retq
%vecext = extractelement <4 x float> %xyzw, i32 0
%vecinit = insertelement <4 x float> undef, float %vecext, i32 0
%vecinit1 = insertelement <4 x float> %vecinit, float 0.000000e+00, i32 1
%vecinit3 = shufflevector <4 x float> %vecinit1, <4 x float> %xyzw, <4 x i32> <i32 0, i32 1, i32 6, i32 undef>
%vecinit5 = shufflevector <4 x float> %vecinit3, <4 x float> %abcd, <4 x i32> <i32 0, i32 1, i32 2, i32 4>
ret <4 x float> %vecinit5
}
define <4 x float> @shuffle_v4f32_0zz0(float %a) {
; SSE-LABEL: shuffle_v4f32_0zz0:
; SSE: # BB#0:
; SSE-NEXT: xorps %xmm1, %xmm1
; SSE-NEXT: blendps {{.*#+}} xmm1 = xmm0[0],xmm1[1,2,3]
; SSE-NEXT: shufps {{.*#+}} xmm1 = xmm1[0,1,1,0]
; SSE-NEXT: movaps %xmm1, %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: shuffle_v4f32_0zz0:
; AVX: # BB#0:
; AVX-NEXT: vxorps %xmm1, %xmm1, %xmm1
; AVX-NEXT: vmovss {{.*#+}} xmm0 = xmm0[0],xmm1[1,2,3]
; AVX-NEXT: vpermilps {{.*#+}} xmm0 = xmm0[0,1,1,0]
; AVX-NEXT: retq
%vecinit = insertelement <4 x float> undef, float %a, i32 0
%vecinit1 = insertelement <4 x float> %vecinit, float 0.000000e+00, i32 1
%vecinit2 = insertelement <4 x float> %vecinit1, float 0.000000e+00, i32 2
%vecinit3 = insertelement <4 x float> %vecinit2, float %a, i32 3
ret <4 x float> %vecinit3
}
define <4 x float> @shuffle_v4f32_0z6z(<4 x float> %A, <4 x float> %B) {
; SSE-LABEL: shuffle_v4f32_0z6z:
; SSE: # BB#0:
; SSE-NEXT: insertps {{.*#+}} xmm0 = xmm0[0],zero,xmm1[2],zero
; SSE-NEXT: retq
;
; AVX-LABEL: shuffle_v4f32_0z6z:
; AVX: # BB#0:
; AVX-NEXT: vinsertps {{.*#+}} xmm0 = xmm0[0],zero,xmm1[2],zero
; AVX-NEXT: retq
%vecext = extractelement <4 x float> %A, i32 0
%vecinit = insertelement <4 x float> undef, float %vecext, i32 0
%vecinit1 = insertelement <4 x float> %vecinit, float 0.000000e+00, i32 1
%vecext2 = extractelement <4 x float> %B, i32 2
%vecinit3 = insertelement <4 x float> %vecinit1, float %vecext2, i32 2
%vecinit4 = insertelement <4 x float> %vecinit3, float 0.000000e+00, i32 3
ret <4 x float> %vecinit4
}