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[AVX-512] Teach LowerFormalArguments to use the extended register class when available. Fix the avx512vl stack folding tests to clobber more registers or otherwise they use xmm16 after this change. 

llvm-svn: 287971
This commit is contained in:
Craig Topper 2016-11-26 07:20:57 +00:00
parent 39265bb1ce
commit 6677bb4e50
3 changed files with 16 additions and 16 deletions
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8
llvm/lib/Target/X86/X86ISelLowering.cpp
View File

@ -2815,9 +2815,9 @@ SDValue X86TargetLowering::LowerFormalArguments(
else if (Is64Bit && RegVT == MVT::i64)
RC = &X86::GR64RegClass;
else if (RegVT == MVT::f32)
RC = &X86::FR32RegClass;
RC = Subtarget.hasAVX512() ? &X86::FR32XRegClass : &X86::FR32RegClass;
else if (RegVT == MVT::f64)
RC = &X86::FR64RegClass;
RC = Subtarget.hasAVX512() ? &X86::FR64XRegClass : &X86::FR64RegClass;
else if (RegVT == MVT::f80)
RC = &X86::RFP80RegClass;
else if (RegVT == MVT::f128)
@ -2825,9 +2825,9 @@ SDValue X86TargetLowering::LowerFormalArguments(
else if (RegVT.is512BitVector())
RC = &X86::VR512RegClass;
else if (RegVT.is256BitVector())
RC = &X86::VR256RegClass;
RC = Subtarget.hasVLX() ? &X86::VR256XRegClass : &X86::VR256RegClass;
else if (RegVT.is128BitVector())
RC = &X86::VR128RegClass;
RC = Subtarget.hasVLX() ? &X86::VR128XRegClass : &X86::VR128RegClass;
else if (RegVT == MVT::x86mmx)
RC = &X86::VR64RegClass;
else if (RegVT == MVT::i1)

20
llvm/test/CodeGen/X86/stack-folding-fp-avx512vl.ll
View File

@ -43,7 +43,7 @@ define <8 x float> @stack_fold_addps_ymm(<8 x float> %a0, <8 x float> %a1) {
define <2 x double> @stack_fold_andnpd(<2 x double> %a0, <2 x double> %a1) {
;CHECK-LABEL: stack_fold_andnpd
;CHECK: vandnpd {{-?[0-9]*}}(%rsp), {{%xmm[0-9][0-9]*}}, {{%xmm[0-9][0-9]*}} {{.*#+}} 16-byte Folded Reload
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"()
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{xmm16},~{xmm17},~{xmm18},~{xmm19},~{xmm20},~{xmm21},~{xmm22},~{xmm23},~{xmm24},~{xmm25},~{xmm26},~{xmm27},~{xmm28},~{xmm29},~{xmm30},~{xmm31},~{flags}"()
%2 = bitcast <2 x double> %a0 to <2 x i64>
%3 = bitcast <2 x double> %a1 to <2 x i64>
%4 = xor <2 x i64> %2, <i64 -1, i64 -1>
@ -57,7 +57,7 @@ define <2 x double> @stack_fold_andnpd(<2 x double> %a0, <2 x double> %a1) {
define <4 x double> @stack_fold_andnpd_ymm(<4 x double> %a0, <4 x double> %a1) {
;CHECK-LABEL: stack_fold_andnpd_ymm
;CHECK: vandnpd {{-?[0-9]*}}(%rsp), {{%ymm[0-9][0-9]*}}, {{%ymm[0-9][0-9]*}} {{.*#+}} 32-byte Folded Reload
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"()
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{xmm16},~{xmm17},~{xmm18},~{xmm19},~{xmm20},~{xmm21},~{xmm22},~{xmm23},~{xmm24},~{xmm25},~{xmm26},~{xmm27},~{xmm28},~{xmm29},~{xmm30},~{xmm31},~{flags}"()
%2 = bitcast <4 x double> %a0 to <4 x i64>
%3 = bitcast <4 x double> %a1 to <4 x i64>
%4 = xor <4 x i64> %2, <i64 -1, i64 -1, i64 -1, i64 -1>
@ -71,7 +71,7 @@ define <4 x double> @stack_fold_andnpd_ymm(<4 x double> %a0, <4 x double> %a1) {
define <4 x float> @stack_fold_andnps(<4 x float> %a0, <4 x float> %a1) {
;CHECK-LABEL: stack_fold_andnps
;CHECK: vandnps {{-?[0-9]*}}(%rsp), {{%xmm[0-9][0-9]*}}, {{%xmm[0-9][0-9]*}} {{.*#+}} 16-byte Folded Reload
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"()
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{xmm16},~{xmm17},~{xmm18},~{xmm19},~{xmm20},~{xmm21},~{xmm22},~{xmm23},~{xmm24},~{xmm25},~{xmm26},~{xmm27},~{xmm28},~{xmm29},~{xmm30},~{xmm31},~{flags}"()
%2 = bitcast <4 x float> %a0 to <2 x i64>
%3 = bitcast <4 x float> %a1 to <2 x i64>
%4 = xor <2 x i64> %2, <i64 -1, i64 -1>
@ -85,7 +85,7 @@ define <4 x float> @stack_fold_andnps(<4 x float> %a0, <4 x float> %a1) {
define <8 x float> @stack_fold_andnps_ymm(<8 x float> %a0, <8 x float> %a1) {
;CHECK-LABEL: stack_fold_andnps_ymm
;CHECK: vandnps {{-?[0-9]*}}(%rsp), {{%ymm[0-9][0-9]*}}, {{%ymm[0-9][0-9]*}} {{.*#+}} 32-byte Folded Reload
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"()
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{xmm16},~{xmm17},~{xmm18},~{xmm19},~{xmm20},~{xmm21},~{xmm22},~{xmm23},~{xmm24},~{xmm25},~{xmm26},~{xmm27},~{xmm28},~{xmm29},~{xmm30},~{xmm31},~{flags}"()
%2 = bitcast <8 x float> %a0 to <4 x i64>
%3 = bitcast <8 x float> %a1 to <4 x i64>
%4 = xor <4 x i64> %2, <i64 -1, i64 -1, i64 -1, i64 -1>
@ -287,7 +287,7 @@ define <8 x float> @stack_fold_maxps_ymm_commutable(<8 x float> %a0, <8 x float>
define <4 x float> @stack_fold_minps(<4 x float> %a0, <4 x float> %a1) #0 {
;CHECK-LABEL: stack_fold_minps
;CHECK: vminps {{-?[0-9]*}}(%rsp), {{%xmm[0-9][0-9]*}}, {{%xmm[0-9][0-9]*}} {{.*#+}} 16-byte Folded Reload
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"()
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{xmm16},~{xmm17},~{xmm18},~{xmm19},~{xmm20},~{xmm21},~{xmm22},~{xmm23},~{xmm24},~{xmm25},~{xmm26},~{xmm27},~{xmm28},~{xmm29},~{xmm30},~{xmm31},~{flags}"()
%2 = call <4 x float> @llvm.x86.sse.min.ps(<4 x float> %a0, <4 x float> %a1)
ret <4 x float> %2
}
@ -296,7 +296,7 @@ declare <4 x float> @llvm.x86.sse.min.ps(<4 x float>, <4 x float>) nounwind read
define <4 x float> @stack_fold_minps_commutable(<4 x float> %a0, <4 x float> %a1) #1 {
;CHECK-LABEL: stack_fold_minps_commutable
;CHECK: vminps {{-?[0-9]*}}(%rsp), {{%xmm[0-9][0-9]*}}, {{%xmm[0-9][0-9]*}} {{.*#+}} 16-byte Folded Reload
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"()
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{xmm16},~{xmm17},~{xmm18},~{xmm19},~{xmm20},~{xmm21},~{xmm22},~{xmm23},~{xmm24},~{xmm25},~{xmm26},~{xmm27},~{xmm28},~{xmm29},~{xmm30},~{xmm31},~{flags}"()
%2 = call <4 x float> @llvm.x86.sse.min.ps(<4 x float> %a0, <4 x float> %a1)
ret <4 x float> %2
}
@ -304,7 +304,7 @@ define <4 x float> @stack_fold_minps_commutable(<4 x float> %a0, <4 x float> %a1
define <8 x float> @stack_fold_minps_ymm(<8 x float> %a0, <8 x float> %a1) #0 {
;CHECK-LABEL: stack_fold_minps_ymm
;CHECK: vminps {{-?[0-9]*}}(%rsp), {{%ymm[0-9][0-9]*}}, {{%ymm[0-9][0-9]*}} {{.*#+}} 32-byte Folded Reload
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"()
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{xmm16},~{xmm17},~{xmm18},~{xmm19},~{xmm20},~{xmm21},~{xmm22},~{xmm23},~{xmm24},~{xmm25},~{xmm26},~{xmm27},~{xmm28},~{xmm29},~{xmm30},~{xmm31},~{flags}"()
%2 = call <8 x float> @llvm.x86.avx.min.ps.256(<8 x float> %a0, <8 x float> %a1)
ret <8 x float> %2
}
@ -313,7 +313,7 @@ declare <8 x float> @llvm.x86.avx.min.ps.256(<8 x float>, <8 x float>) nounwind
define <8 x float> @stack_fold_minps_ymm_commutable(<8 x float> %a0, <8 x float> %a1) #1 {
;CHECK-LABEL: stack_fold_minps_ymm_commutable
;CHECK: vminps {{-?[0-9]*}}(%rsp), {{%ymm[0-9][0-9]*}}, {{%ymm[0-9][0-9]*}} {{.*#+}} 32-byte Folded Reload
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"()
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{xmm16},~{xmm17},~{xmm18},~{xmm19},~{xmm20},~{xmm21},~{xmm22},~{xmm23},~{xmm24},~{xmm25},~{xmm26},~{xmm27},~{xmm28},~{xmm29},~{xmm30},~{xmm31},~{flags}"()
%2 = call <8 x float> @llvm.x86.avx.min.ps.256(<8 x float> %a0, <8 x float> %a1)
ret <8 x float> %2
}
@ -505,7 +505,7 @@ define <2 x double> @stack_fold_extractf64x2(<4 x double> %a0, <4 x double> %a1)
define <8 x float> @stack_fold_insertf32x4(<4 x float> %a0, <4 x float> %a1) {
;CHECK-LABEL: stack_fold_insertf32x4
;CHECK: vinsertf32x4 $1, {{-?[0-9]*}}(%rsp), {{%ymm[0-9][0-9]*}}, {{%ymm[0-9][0-9]*}} {{.*#+}} 16-byte Folded Reload
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"()
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{xmm16},~{xmm17},~{xmm18},~{xmm19},~{xmm20},~{xmm21},~{xmm22},~{xmm23},~{xmm24},~{xmm25},~{xmm26},~{xmm27},~{xmm28},~{xmm29},~{xmm30},~{xmm31},~{flags}"()
%2 = shufflevector <4 x float> %a0, <4 x float> %a1, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
ret <8 x float> %2
}
@ -513,7 +513,7 @@ define <8 x float> @stack_fold_insertf32x4(<4 x float> %a0, <4 x float> %a1) {
define <4 x double> @stack_fold_insertf64x2(<2 x double> %a0, <2 x double> %a1) {
;CHECK-LABEL: stack_fold_insertf64x2
;CHECK: vinsertf64x2 $1, {{-?[0-9]*}}(%rsp), {{%ymm[0-9][0-9]*}}, {{%ymm[0-9][0-9]*}} {{.*#+}} 16-byte Folded Reload
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"()
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{xmm16},~{xmm17},~{xmm18},~{xmm19},~{xmm20},~{xmm21},~{xmm22},~{xmm23},~{xmm24},~{xmm25},~{xmm26},~{xmm27},~{xmm28},~{xmm29},~{xmm30},~{xmm31},~{flags}"()
%2 = shufflevector <2 x double> %a0, <2 x double> %a1, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
ret <4 x double> %2
}

4
llvm/test/CodeGen/X86/stack-folding-int-avx512vl.ll
View File

@ -422,7 +422,7 @@ define <2 x i64> @stack_fold_extracti64x2(<4 x i64> %a0, <4 x i64> %a1) {
define <8 x i32> @stack_fold_inserti32x4(<4 x i32> %a0, <4 x i32> %a1) {
;CHECK-LABEL: stack_fold_inserti32x4
;CHECK: vinserti32x4 $1, {{-?[0-9]*}}(%rsp), {{%ymm[0-9][0-9]*}}, {{%ymm[0-9][0-9]*}} {{.*#+}} 16-byte Folded Reload
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"()
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{xmm16},~{xmm17},~{xmm18},~{xmm19},~{xmm20},~{xmm21},~{xmm22},~{xmm23},~{xmm24},~{xmm25},~{xmm26},~{xmm27},~{xmm28},~{xmm29},~{xmm30},~{xmm31},~{flags}"()
%2 = shufflevector <4 x i32> %a0, <4 x i32> %a1, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
; add forces execution domain
%3 = add <8 x i32> %2, <i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1>
@ -432,7 +432,7 @@ define <8 x i32> @stack_fold_inserti32x4(<4 x i32> %a0, <4 x i32> %a1) {
define <4 x i64> @stack_fold_inserti64x2(<2 x i64> %a0, <2 x i64> %a1) {
;CHECK-LABEL: stack_fold_inserti64x2
;CHECK: vinserti64x2 $1, {{-?[0-9]*}}(%rsp), {{%ymm[0-9][0-9]*}}, {{%ymm[0-9][0-9]*}} {{.*#+}} 16-byte Folded Reload
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"()
%1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{xmm16},~{xmm17},~{xmm18},~{xmm19},~{xmm20},~{xmm21},~{xmm22},~{xmm23},~{xmm24},~{xmm25},~{xmm26},~{xmm27},~{xmm28},~{xmm29},~{xmm30},~{xmm31},~{flags}"()
%2 = shufflevector <2 x i64> %a0, <2 x i64> %a1, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
; add forces execution domain
%3 = add <4 x i64> %2, <i64 1, i64 1, i64 1, i64 1>