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[X86][3DNow] Added 3DNow! memory folding patterns + tests 

llvm-svn: 234008
This commit is contained in:
Simon Pilgrim 2015-04-03 11:50:30 +00:00
parent 012e719574
commit 8dba5da06d
2 changed files with 245 additions and 0 deletions
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28
llvm/lib/Target/X86/X86InstrInfo.cpp
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@ -559,6 +559,15 @@ X86InstrInfo::X86InstrInfo(X86Subtarget &STI)
{ X86::MMX_PABSWrr64, X86::MMX_PABSWrm64, 0 },
{ X86::MMX_PSHUFWri, X86::MMX_PSHUFWmi, 0 },
// 3DNow! version of foldable instructions
{ X86::PF2IDrr, X86::PF2IDrm, 0 },
{ X86::PF2IWrr, X86::PF2IWrm, 0 },
{ X86::PFRCPrr, X86::PFRCPrm, 0 },
{ X86::PFRSQRTrr, X86::PFRSQRTrm, 0 },
{ X86::PI2FDrr, X86::PI2FDrm, 0 },
{ X86::PI2FWrr, X86::PI2FWrm, 0 },
{ X86::PSWAPDrr, X86::PSWAPDrm, 0 },
// AVX 128-bit versions of foldable instructions
{ X86::Int_VCOMISDrr, X86::Int_VCOMISDrm, 0 },
{ X86::Int_VCOMISSrr, X86::Int_VCOMISSrm, 0 },
@ -1201,6 +1210,25 @@ X86InstrInfo::X86InstrInfo(X86Subtarget &STI)
{ X86::MMX_PUNPCKLWDirr, X86::MMX_PUNPCKLWDirm, 0 },
{ X86::MMX_PXORirr, X86::MMX_PXORirm, 0 },
// 3DNow! version of foldable instructions
{ X86::PAVGUSBrr, X86::PAVGUSBrm, 0 },
{ X86::PFACCrr, X86::PFACCrm, 0 },
{ X86::PFADDrr, X86::PFADDrm, 0 },
{ X86::PFCMPEQrr, X86::PFCMPEQrm, 0 },
{ X86::PFCMPGErr, X86::PFCMPGErm, 0 },
{ X86::PFCMPGTrr, X86::PFCMPGTrm, 0 },
{ X86::PFMAXrr, X86::PFMAXrm, 0 },
{ X86::PFMINrr, X86::PFMINrm, 0 },
{ X86::PFMULrr, X86::PFMULrm, 0 },
{ X86::PFNACCrr, X86::PFNACCrm, 0 },
{ X86::PFPNACCrr, X86::PFPNACCrm, 0 },
{ X86::PFRCPIT1rr, X86::PFRCPIT1rm, 0 },
{ X86::PFRCPIT2rr, X86::PFRCPIT2rm, 0 },
{ X86::PFRSQIT1rr, X86::PFRSQIT1rm, 0 },
{ X86::PFSUBrr, X86::PFSUBrm, 0 },
{ X86::PFSUBRrr, X86::PFSUBRrm, 0 },
{ X86::PMULHRWrr, X86::PMULHRWrm, 0 },
// AVX 128-bit versions of foldable instructions
{ X86::VCVTSD2SSrr, X86::VCVTSD2SSrm, 0 },
{ X86::Int_VCVTSD2SSrr, X86::Int_VCVTSD2SSrm, 0 },

217
llvm/test/CodeGen/X86/stack-folding-3dnow.ll Normal file
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@ -0,0 +1,217 @@
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+3dnow | FileCheck %s
define x86_mmx @stack_fold_pavgusb(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pavgusb
;CHECK: pavgusb {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pavgusb(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pavgusb(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pf2id(x86_mmx %a) {
;CHECK-LABEL: stack_fold_pf2id
;CHECK: pf2id {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm1},~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pf2id(x86_mmx %a) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pf2id(x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pf2iw(x86_mmx %a) {
;CHECK-LABEL: stack_fold_pf2iw
;CHECK: pf2iw {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm1},~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnowa.pf2iw(x86_mmx %a) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnowa.pf2iw(x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfacc(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pfacc
;CHECK: pfacc {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pfacc(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pfacc(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfadd(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pfadd
;CHECK: pfadd {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pfadd(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pfadd(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfcmpeq(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pfcmpeq
;CHECK: pfcmpeq {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pfcmpeq(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pfcmpeq(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfcmpge(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pfcmpge
;CHECK: pfcmpge {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pfcmpge(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pfcmpge(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfcmpgt(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pfcmpgt
;CHECK: pfcmpgt {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pfcmpgt(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pfcmpgt(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfmax(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pfmax
;CHECK: pfmax {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pfmax(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pfmax(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfmin(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pfmin
;CHECK: pfmin {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pfmin(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pfmin(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfmul(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pfmul
;CHECK: pfmul {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pfmul(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pfmul(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfnacc(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pfnacc
;CHECK: pfnacc {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnowa.pfnacc(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnowa.pfnacc(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfpnacc(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pfpnacc
;CHECK: pfpnacc {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnowa.pfpnacc(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnowa.pfpnacc(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfrcp(x86_mmx %a) {
;CHECK-LABEL: stack_fold_pfrcp
;CHECK: pfrcp {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm1},~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pfrcp(x86_mmx %a) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pfrcp(x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfrcpit1(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pfrcpit1
;CHECK: pfrcpit1 {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pfrcpit1(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pfrcpit1(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfrcpit2(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pfrcpit2
;CHECK: pfrcpit2 {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pfrcpit2(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pfrcpit2(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfrsqit1(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pfrsqit1
;CHECK: pfrsqit1 {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pfrsqit1(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pfrsqit1(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfrsqrt(x86_mmx %a) {
;CHECK-LABEL: stack_fold_pfrsqrt
;CHECK: pfrsqrt {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm1},~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pfrsqrt(x86_mmx %a) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pfrsqrt(x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfsub(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pfsub
;CHECK: pfsub {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pfsub(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pfsub(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pfsubr(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pfsubr
;CHECK: pfsubr {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pfsubr(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pfsubr(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pi2fd(x86_mmx %a) {
;CHECK-LABEL: stack_fold_pi2fd
;CHECK: pi2fd {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm1},~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pi2fd(x86_mmx %a) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pi2fd(x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pi2fw(x86_mmx %a) {
;CHECK-LABEL: stack_fold_pi2fw
;CHECK: pi2fw {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm1},~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnowa.pi2fw(x86_mmx %a) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnowa.pi2fw(x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pmulhrw(x86_mmx %a, x86_mmx %b) {
;CHECK-LABEL: stack_fold_pmulhrw
;CHECK: pmulhrw {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnow.pmulhrw(x86_mmx %a, x86_mmx %b) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnow.pmulhrw(x86_mmx, x86_mmx) nounwind readnone
define x86_mmx @stack_fold_pswapd(x86_mmx %a) {
;CHECK-LABEL: stack_fold_pswapd
;CHECK: pswapd {{-?[0-9]*}}(%rsp), {{%mm[0-7]}} {{.*#+}} 8-byte Folded Reload
%1 = tail call x86_mmx asm sideeffect "nop", "=y,~{mm1},~{mm2},~{mm3},~{mm4},~{mm5},~{mm6},~{mm7}"()
%2 = call x86_mmx @llvm.x86.3dnowa.pswapd(x86_mmx %a) nounwind readnone
ret x86_mmx %2
}
declare x86_mmx @llvm.x86.3dnowa.pswapd(x86_mmx) nounwind readnone