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This patch allows AVX blend instructions to handle insertion into the low element of a 256-bit vector for the appropriate data types. For f32, instead of: vblendps $1, %xmm1, %xmm0, %xmm1 ## xmm1 = xmm1[0],xmm0[1,2,3] vblendps $15, %ymm1, %ymm0, %ymm0 ## ymm0 = ymm1[0,1,2,3],ymm0[4,5,6,7] we get: vblendps $1, %ymm1, %ymm0, %ymm0 ## ymm0 = ymm1[0],ymm0[1,2,3,4,5,6,7] For f64, instead of: vmovsd %xmm1, %xmm0, %xmm1 ## xmm1 = xmm1[0],xmm0[1] vblendpd $3, %ymm1, %ymm0, %ymm0 ## ymm0 = ymm1[0,1],ymm0[2,3] we get: vblendpd $1, %ymm1, %ymm0, %ymm0 ## ymm0 = ymm1[0],ymm0[1,2,3] For the hardware-neglected integer data types, I left a TODO comment in the code and added regression tests for a follow-on patch. Differential Revision: http://reviews.llvm.org/D8609 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233199 91177308-0d34-0410-b5e6-96231b3b80d8
84 lines
2.7 KiB
LLVM
84 lines
2.7 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=ALL --check-prefix=AVX
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefix=ALL --check-prefix=AVX2
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define <8 x float> @insert_f32(<8 x float> %y, float %f, <8 x float> %x) {
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; ALL-LABEL: insert_f32:
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; ALL: vblendps {{.*#+}} ymm0 = ymm1[0],ymm0[1,2,3,4,5,6,7]
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; ALL-NEXT: retq
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%i0 = insertelement <8 x float> %y, float %f, i32 0
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ret <8 x float> %i0
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}
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define <4 x double> @insert_f64(<4 x double> %y, double %f, <4 x double> %x) {
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; ALL-LABEL: insert_f64:
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; ALL: vblendpd {{.*#+}} ymm0 = ymm1[0],ymm0[1,2,3]
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; ALL-NEXT: retq
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%i0 = insertelement <4 x double> %y, double %f, i32 0
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ret <4 x double> %i0
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}
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define <32 x i8> @insert_i8(<32 x i8> %y, i8 %f, <32 x i8> %x) {
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; AVX-LABEL: insert_i8:
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; AVX: # BB#0:
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; AVX-NEXT: vpinsrb $0, %edi, %xmm0, %xmm1
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; AVX-NEXT: vblendps {{.*#+}} ymm0 = ymm1[0,1,2,3],ymm0[4,5,6,7]
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; AVX-NEXT: retq
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;
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; AVX2-LABEL: insert_i8:
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; AVX2: # BB#0:
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; AVX2-NEXT: vpinsrb $0, %edi, %xmm0, %xmm1
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; AVX2-NEXT: vpblendd {{.*#+}} ymm0 = ymm1[0,1,2,3],ymm0[4,5,6,7]
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; AVX2-NEXT: retq
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%i0 = insertelement <32 x i8> %y, i8 %f, i32 0
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ret <32 x i8> %i0
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}
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define <16 x i16> @insert_i16(<16 x i16> %y, i16 %f, <16 x i16> %x) {
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; AVX-LABEL: insert_i16:
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; AVX: # BB#0:
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; AVX-NEXT: vpinsrw $0, %edi, %xmm0, %xmm1
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; AVX-NEXT: vblendps {{.*#+}} ymm0 = ymm1[0,1,2,3],ymm0[4,5,6,7]
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; AVX-NEXT: retq
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;
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; AVX2-LABEL: insert_i16:
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; AVX2: # BB#0:
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; AVX2-NEXT: vpinsrw $0, %edi, %xmm0, %xmm1
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; AVX2-NEXT: vpblendd {{.*#+}} ymm0 = ymm1[0,1,2,3],ymm0[4,5,6,7]
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; AVX2-NEXT: retq
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%i0 = insertelement <16 x i16> %y, i16 %f, i32 0
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ret <16 x i16> %i0
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}
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define <8 x i32> @insert_i32(<8 x i32> %y, i32 %f, <8 x i32> %x) {
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; AVX-LABEL: insert_i32:
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; AVX: # BB#0:
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; AVX-NEXT: vpinsrd $0, %edi, %xmm0, %xmm1
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; AVX-NEXT: vblendps {{.*#+}} ymm0 = ymm1[0,1,2,3],ymm0[4,5,6,7]
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; AVX-NEXT: retq
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;
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; AVX2-LABEL: insert_i32:
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; AVX2: # BB#0:
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; AVX2-NEXT: vmovd %edi, %xmm1
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; AVX2-NEXT: vpblendd {{.*#+}} ymm0 = ymm1[0],ymm0[1,2,3,4,5,6,7]
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; AVX2-NEXT: retq
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%i0 = insertelement <8 x i32> %y, i32 %f, i32 0
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ret <8 x i32> %i0
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}
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define <4 x i64> @insert_i64(<4 x i64> %y, i64 %f, <4 x i64> %x) {
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; AVX-LABEL: insert_i64:
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; AVX: # BB#0:
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; AVX-NEXT: vpinsrq $0, %rdi, %xmm0, %xmm1
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; AVX-NEXT: vblendps {{.*#+}} ymm0 = ymm1[0,1,2,3],ymm0[4,5,6,7]
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; AVX-NEXT: retq
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;
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; AVX2-LABEL: insert_i64:
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; AVX2: # BB#0:
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; AVX2-NEXT: vpinsrq $0, %rdi, %xmm0, %xmm1
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; AVX2-NEXT: vpblendd {{.*#+}} ymm0 = ymm1[0,1,2,3],ymm0[4,5,6,7]
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; AVX2-NEXT: retq
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%i0 = insertelement <4 x i64> %y, i64 %f, i32 0
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ret <4 x i64> %i0
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}
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