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[X86] Promote fp_to_sint v16f32->v16i16/v16i8 to avoid scalarization.

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llvm-svn: 319266
This commit is contained in:
Craig Topper 2017-11-29 00:32:09 +00:00
parent 04cc391642
commit 4a0dc124f3
3 changed files with 8 additions and 97 deletions
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2
lib/Target/X86/X86ISelLowering.cpp
View File

@ -1173,6 +1173,8 @@ X86TargetLowering::X86TargetLowering(const X86TargetMachine &TM,
}
setOperationAction(ISD::FP_TO_SINT, MVT::v16i32, Legal);
setOperationAction(ISD::FP_TO_SINT, MVT::v16i16, Promote);
setOperationAction(ISD::FP_TO_SINT, MVT::v16i8, Promote);
setOperationAction(ISD::FP_TO_UINT, MVT::v16i32, Legal);
setOperationAction(ISD::FP_TO_UINT, MVT::v16i8, Promote);
setOperationAction(ISD::FP_TO_UINT, MVT::v16i16, Promote);

4
test/Analysis/CostModel/X86/fptosi.ll
View File

@ -224,7 +224,7 @@ define i32 @fptosi_float_i16(i32 %arg) {
; SSE42: cost of 7 {{.*}} %V16I16 = fptosi
; AVX1: cost of 3 {{.*}} %V16I16 = fptosi
; AVX2: cost of 3 {{.*}} %V16I16 = fptosi
; AVX512: cost of 48 {{.*}} %V16I16 = fptosi
; AVX512: cost of 1 {{.*}} %V16I16 = fptosi
%V16I16 = fptosi <16 x float> undef to <16 x i16>
ret i32 undef
@ -254,7 +254,7 @@ define i32 @fptosi_float_i8(i32 %arg) {
; SSE42: cost of 7 {{.*}} %V16I8 = fptosi
; AVX1: cost of 15 {{.*}} %V16I8 = fptosi
; AVX2: cost of 15 {{.*}} %V16I8 = fptosi
; AVX512: cost of 48 {{.*}} %V16I8 = fptosi
; AVX512: cost of 1 {{.*}} %V16I8 = fptosi
%V16I8 = fptosi <16 x float> undef to <16 x i8>
ret i32 undef

99
test/CodeGen/X86/avx512-cvt.ll
View File

@ -433,53 +433,8 @@ define <16 x i32> @f64to16si(<16 x float> %a) nounwind {
define <16 x i8> @f32to16sc(<16 x float> %f) {
; ALL-LABEL: f32to16sc:
; ALL: # BB#0:
; ALL-NEXT: vmovshdup {{.*#+}} xmm1 = xmm0[1,1,3,3]
; ALL-NEXT: vcvttss2si %xmm1, %eax
; ALL-NEXT: vcvttss2si %xmm0, %ecx
; ALL-NEXT: vmovd %ecx, %xmm1
; ALL-NEXT: vpinsrb $1, %eax, %xmm1, %xmm1
; ALL-NEXT: vpermilpd {{.*#+}} xmm2 = xmm0[1,0]
; ALL-NEXT: vcvttss2si %xmm2, %eax
; ALL-NEXT: vpinsrb $2, %eax, %xmm1, %xmm1
; ALL-NEXT: vpermilps {{.*#+}} xmm2 = xmm0[3,1,2,3]
; ALL-NEXT: vcvttss2si %xmm2, %eax
; ALL-NEXT: vpinsrb $3, %eax, %xmm1, %xmm1
; ALL-NEXT: vextractf128 $1, %ymm0, %xmm2
; ALL-NEXT: vcvttss2si %xmm2, %eax
; ALL-NEXT: vpinsrb $4, %eax, %xmm1, %xmm1
; ALL-NEXT: vmovshdup {{.*#+}} xmm3 = xmm2[1,1,3,3]
; ALL-NEXT: vcvttss2si %xmm3, %eax
; ALL-NEXT: vpinsrb $5, %eax, %xmm1, %xmm1
; ALL-NEXT: vpermilpd {{.*#+}} xmm3 = xmm2[1,0]
; ALL-NEXT: vcvttss2si %xmm3, %eax
; ALL-NEXT: vpinsrb $6, %eax, %xmm1, %xmm1
; ALL-NEXT: vpermilps {{.*#+}} xmm2 = xmm2[3,1,2,3]
; ALL-NEXT: vcvttss2si %xmm2, %eax
; ALL-NEXT: vpinsrb $7, %eax, %xmm1, %xmm1
; ALL-NEXT: vextractf32x4 $2, %zmm0, %xmm2
; ALL-NEXT: vcvttss2si %xmm2, %eax
; ALL-NEXT: vpinsrb $8, %eax, %xmm1, %xmm1
; ALL-NEXT: vmovshdup {{.*#+}} xmm3 = xmm2[1,1,3,3]
; ALL-NEXT: vcvttss2si %xmm3, %eax
; ALL-NEXT: vpinsrb $9, %eax, %xmm1, %xmm1
; ALL-NEXT: vpermilpd {{.*#+}} xmm3 = xmm2[1,0]
; ALL-NEXT: vcvttss2si %xmm3, %eax
; ALL-NEXT: vpinsrb $10, %eax, %xmm1, %xmm1
; ALL-NEXT: vpermilps {{.*#+}} xmm2 = xmm2[3,1,2,3]
; ALL-NEXT: vcvttss2si %xmm2, %eax
; ALL-NEXT: vpinsrb $11, %eax, %xmm1, %xmm1
; ALL-NEXT: vextractf32x4 $3, %zmm0, %xmm0
; ALL-NEXT: vcvttss2si %xmm0, %eax
; ALL-NEXT: vpinsrb $12, %eax, %xmm1, %xmm1
; ALL-NEXT: vmovshdup {{.*#+}} xmm2 = xmm0[1,1,3,3]
; ALL-NEXT: vcvttss2si %xmm2, %eax
; ALL-NEXT: vpinsrb $13, %eax, %xmm1, %xmm1
; ALL-NEXT: vpermilpd {{.*#+}} xmm2 = xmm0[1,0]
; ALL-NEXT: vcvttss2si %xmm2, %eax
; ALL-NEXT: vpinsrb $14, %eax, %xmm1, %xmm1
; ALL-NEXT: vpermilps {{.*#+}} xmm0 = xmm0[3,1,2,3]
; ALL-NEXT: vcvttss2si %xmm0, %eax
; ALL-NEXT: vpinsrb $15, %eax, %xmm1, %xmm0
; ALL-NEXT: vcvttps2dq %zmm0, %zmm0
; ALL-NEXT: vpmovdb %zmm0, %xmm0
; ALL-NEXT: vzeroupper
; ALL-NEXT: retq
%res = fptosi <16 x float> %f to <16 x i8>
@ -489,54 +444,8 @@ define <16 x i8> @f32to16sc(<16 x float> %f) {
define <16 x i16> @f32to16ss(<16 x float> %f) {
; ALL-LABEL: f32to16ss:
; ALL: # BB#0:
; ALL-NEXT: vextractf32x4 $2, %zmm0, %xmm1
; ALL-NEXT: vmovshdup {{.*#+}} xmm2 = xmm1[1,1,3,3]
; ALL-NEXT: vcvttss2si %xmm2, %eax
; ALL-NEXT: vcvttss2si %xmm1, %ecx
; ALL-NEXT: vmovd %ecx, %xmm2
; ALL-NEXT: vpinsrw $1, %eax, %xmm2, %xmm2
; ALL-NEXT: vpermilpd {{.*#+}} xmm3 = xmm1[1,0]
; ALL-NEXT: vcvttss2si %xmm3, %eax
; ALL-NEXT: vpinsrw $2, %eax, %xmm2, %xmm2
; ALL-NEXT: vpermilps {{.*#+}} xmm1 = xmm1[3,1,2,3]
; ALL-NEXT: vcvttss2si %xmm1, %eax
; ALL-NEXT: vpinsrw $3, %eax, %xmm2, %xmm1
; ALL-NEXT: vextractf32x4 $3, %zmm0, %xmm2
; ALL-NEXT: vcvttss2si %xmm2, %eax
; ALL-NEXT: vpinsrw $4, %eax, %xmm1, %xmm1
; ALL-NEXT: vmovshdup {{.*#+}} xmm3 = xmm2[1,1,3,3]
; ALL-NEXT: vcvttss2si %xmm3, %eax
; ALL-NEXT: vpinsrw $5, %eax, %xmm1, %xmm1
; ALL-NEXT: vpermilpd {{.*#+}} xmm3 = xmm2[1,0]
; ALL-NEXT: vcvttss2si %xmm3, %eax
; ALL-NEXT: vpinsrw $6, %eax, %xmm1, %xmm1
; ALL-NEXT: vpermilps {{.*#+}} xmm2 = xmm2[3,1,2,3]
; ALL-NEXT: vcvttss2si %xmm2, %eax
; ALL-NEXT: vpinsrw $7, %eax, %xmm1, %xmm1
; ALL-NEXT: vmovshdup {{.*#+}} xmm2 = xmm0[1,1,3,3]
; ALL-NEXT: vcvttss2si %xmm2, %eax
; ALL-NEXT: vcvttss2si %xmm0, %ecx
; ALL-NEXT: vmovd %ecx, %xmm2
; ALL-NEXT: vpinsrw $1, %eax, %xmm2, %xmm2
; ALL-NEXT: vpermilpd {{.*#+}} xmm3 = xmm0[1,0]
; ALL-NEXT: vcvttss2si %xmm3, %eax
; ALL-NEXT: vpinsrw $2, %eax, %xmm2, %xmm2
; ALL-NEXT: vpermilps {{.*#+}} xmm3 = xmm0[3,1,2,3]
; ALL-NEXT: vcvttss2si %xmm3, %eax
; ALL-NEXT: vpinsrw $3, %eax, %xmm2, %xmm2
; ALL-NEXT: vextractf128 $1, %ymm0, %xmm0
; ALL-NEXT: vcvttss2si %xmm0, %eax
; ALL-NEXT: vpinsrw $4, %eax, %xmm2, %xmm2
; ALL-NEXT: vmovshdup {{.*#+}} xmm3 = xmm0[1,1,3,3]
; ALL-NEXT: vcvttss2si %xmm3, %eax
; ALL-NEXT: vpinsrw $5, %eax, %xmm2, %xmm2
; ALL-NEXT: vpermilpd {{.*#+}} xmm3 = xmm0[1,0]
; ALL-NEXT: vcvttss2si %xmm3, %eax
; ALL-NEXT: vpinsrw $6, %eax, %xmm2, %xmm2
; ALL-NEXT: vpermilps {{.*#+}} xmm0 = xmm0[3,1,2,3]
; ALL-NEXT: vcvttss2si %xmm0, %eax
; ALL-NEXT: vpinsrw $7, %eax, %xmm2, %xmm0
; ALL-NEXT: vinserti128 $1, %xmm1, %ymm0, %ymm0
; ALL-NEXT: vcvttps2dq %zmm0, %zmm0
; ALL-NEXT: vpmovdw %zmm0, %ymm0
; ALL-NEXT: retq
%res = fptosi <16 x float> %f to <16 x i16>
ret <16 x i16> %res