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add a bunch more common shuffles to the instprinter.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112397 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-08-29 03:08:08 +00:00
parent c19b9477c9
commit 4644a936dc
1 changed files with 178 additions and 6 deletions
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184
lib/Target/X86/AsmPrinter/X86InstComments.cpp
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@ -50,6 +50,64 @@ static void DecodeINSERTPSMask(unsigned Imm,
if (ZMask & 8) ShuffleMask[3] = SM_SentinelZero;
}
static void DecodeMOVHLPSMask(SmallVectorImpl<unsigned> &ShuffleMask) {
ShuffleMask.push_back(3);
ShuffleMask.push_back(1);
}
static void DecodeMOVLHPSMask(SmallVectorImpl<unsigned> &ShuffleMask) {
ShuffleMask.push_back(0);
ShuffleMask.push_back(2);
}
static void DecodePSHUFMask(unsigned NElts, unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask) {
for (unsigned i = 0; i != NElts; ++i) {
ShuffleMask.push_back(Imm % NElts);
Imm /= NElts;
}
}
static void DecodePSHUFHWMask(unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask) {
ShuffleMask.push_back(0);
ShuffleMask.push_back(1);
ShuffleMask.push_back(2);
ShuffleMask.push_back(3);
for (unsigned i = 0; i != 4; ++i) {
ShuffleMask.push_back(4+(Imm & 3));
Imm >>= 2;
}
}
static void DecodePSHUFLWMask(unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask) {
for (unsigned i = 0; i != 4; ++i) {
ShuffleMask.push_back((Imm & 3));
Imm >>= 2;
}
ShuffleMask.push_back(4);
ShuffleMask.push_back(5);
ShuffleMask.push_back(6);
ShuffleMask.push_back(7);
}
static void DecodePUNPCKLMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask) {
for (unsigned i = 0; i != NElts/2; ++i) {
ShuffleMask.push_back(i);
ShuffleMask.push_back(i+NElts);
}
}
static void DecodePUNPCKHMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask) {
for (unsigned i = 0; i != NElts/2; ++i) {
ShuffleMask.push_back(i+NElts/2);
ShuffleMask.push_back(i+NElts+NElts/2);
}
}
static void DecodeSHUFPSMask(unsigned NElts, unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask) {
// Part that reads from dest.
@ -64,14 +122,15 @@ static void DecodeSHUFPSMask(unsigned NElts, unsigned Imm,
}
}
static void DecodePSHUFMask(unsigned NElts, unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask) {
for (unsigned i = 0; i != NElts; ++i) {
ShuffleMask.push_back(Imm % NElts);
Imm /= NElts;
static void DecodeUNPCKHPMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask) {
for (unsigned i = 0; i != NElts/2; ++i) {
ShuffleMask.push_back(i+NElts/2); // Reads from dest
ShuffleMask.push_back(i+NElts+NElts/2); // Reads from src
}
}
/// DecodeUNPCKLPMask - This decodes the shuffle masks for unpcklps/unpcklpd
/// etc. NElts indicates the number of elements in the vector allowing it to
/// handle different datatypes and vector widths.
@ -103,6 +162,19 @@ void llvm::EmitAnyX86InstComments(const MCInst *MI, raw_ostream &OS,
Src2Name = getRegName(MI->getOperand(2).getReg());
DecodeINSERTPSMask(MI->getOperand(3).getImm(), ShuffleMask);
break;
case X86::MOVLHPSrr:
Src2Name = getRegName(MI->getOperand(2).getReg());
Src1Name = getRegName(MI->getOperand(0).getReg());
DecodeMOVLHPSMask(ShuffleMask);
break;
case X86::MOVHLPSrr:
Src2Name = getRegName(MI->getOperand(2).getReg());
Src1Name = getRegName(MI->getOperand(0).getReg());
DecodeMOVHLPSMask(ShuffleMask);
break;
case X86::PSHUFDri:
Src1Name = getRegName(MI->getOperand(1).getReg());
// FALL THROUGH.
@ -111,16 +183,102 @@ void llvm::EmitAnyX86InstComments(const MCInst *MI, raw_ostream &OS,
DecodePSHUFMask(4, MI->getOperand(MI->getNumOperands()-1).getImm(),
ShuffleMask);
break;
case X86::PSHUFHWri:
Src1Name = getRegName(MI->getOperand(1).getReg());
// FALL THROUGH.
case X86::PSHUFHWmi:
DestName = getRegName(MI->getOperand(0).getReg());
DecodePSHUFHWMask(MI->getOperand(MI->getNumOperands()-1).getImm(),
ShuffleMask);
break;
case X86::PSHUFLWri:
Src1Name = getRegName(MI->getOperand(1).getReg());
// FALL THROUGH.
case X86::PSHUFLWmi:
DestName = getRegName(MI->getOperand(0).getReg());
DecodePSHUFLWMask(MI->getOperand(MI->getNumOperands()-1).getImm(),
ShuffleMask);
break;
case X86::PUNPCKHBWrr:
Src2Name = getRegName(MI->getOperand(2).getReg());
// FALL THROUGH.
case X86::PUNPCKHBWrm:
Src1Name = getRegName(MI->getOperand(0).getReg());
DecodePUNPCKHMask(16, ShuffleMask);
break;
case X86::PUNPCKHWDrr:
Src2Name = getRegName(MI->getOperand(2).getReg());
// FALL THROUGH.
case X86::PUNPCKHWDrm:
Src1Name = getRegName(MI->getOperand(0).getReg());
DecodePUNPCKHMask(8, ShuffleMask);
break;
case X86::PUNPCKHDQrr:
Src2Name = getRegName(MI->getOperand(2).getReg());
// FALL THROUGH.
case X86::PUNPCKHDQrm:
Src1Name = getRegName(MI->getOperand(0).getReg());
DecodePUNPCKHMask(4, ShuffleMask);
break;
case X86::PUNPCKHQDQrr:
Src2Name = getRegName(MI->getOperand(2).getReg());
// FALL THROUGH.
case X86::PUNPCKHQDQrm:
Src1Name = getRegName(MI->getOperand(0).getReg());
DecodePUNPCKHMask(2, ShuffleMask);
break;
case X86::PUNPCKLBWrr:
Src2Name = getRegName(MI->getOperand(2).getReg());
// FALL THROUGH.
case X86::PUNPCKLBWrm:
Src1Name = getRegName(MI->getOperand(0).getReg());
DecodePUNPCKLMask(16, ShuffleMask);
break;
case X86::PUNPCKLWDrr:
Src2Name = getRegName(MI->getOperand(2).getReg());
// FALL THROUGH.
case X86::PUNPCKLWDrm:
Src1Name = getRegName(MI->getOperand(0).getReg());
DecodePUNPCKLMask(8, ShuffleMask);
break;
case X86::PUNPCKLDQrr:
Src2Name = getRegName(MI->getOperand(2).getReg());
// FALL THROUGH.
case X86::PUNPCKLDQrm:
Src1Name = getRegName(MI->getOperand(0).getReg());
DecodePUNPCKLMask(4, ShuffleMask);
break;
case X86::PUNPCKLQDQrr:
Src2Name = getRegName(MI->getOperand(2).getReg());
// FALL THROUGH.
case X86::PUNPCKLQDQrm:
Src1Name = getRegName(MI->getOperand(0).getReg());
DecodePUNPCKLMask(2, ShuffleMask);
break;
case X86::SHUFPDrri:
DecodeSHUFPSMask(2, MI->getOperand(3).getImm(), ShuffleMask);
Src1Name = getRegName(MI->getOperand(0).getReg());
Src2Name = getRegName(MI->getOperand(2).getReg());
break;
case X86::SHUFPSrri:
Src2Name = getRegName(MI->getOperand(2).getReg());
// FALL THROUGH.
case X86::SHUFPSrmi:
DecodeSHUFPSMask(4, MI->getOperand(3).getImm(), ShuffleMask);
Src1Name = getRegName(MI->getOperand(0).getReg());
break;
case X86::UNPCKLPDrr:
Src2Name = getRegName(MI->getOperand(2).getReg());
// FALL THROUGH.
case X86::UNPCKLPDrm:
DecodeUNPCKLPMask(2, ShuffleMask);
Src1Name = getRegName(MI->getOperand(0).getReg());
break;
case X86::UNPCKLPSrr:
Src2Name = getRegName(MI->getOperand(2).getReg());
@ -129,6 +287,20 @@ void llvm::EmitAnyX86InstComments(const MCInst *MI, raw_ostream &OS,
DecodeUNPCKLPMask(4, ShuffleMask);
Src1Name = getRegName(MI->getOperand(0).getReg());
break;
case X86::UNPCKHPDrr:
Src2Name = getRegName(MI->getOperand(2).getReg());
// FALL THROUGH.
case X86::UNPCKHPDrm:
DecodeUNPCKHPMask(2, ShuffleMask);
Src1Name = getRegName(MI->getOperand(0).getReg());
break;
case X86::UNPCKHPSrr:
Src2Name = getRegName(MI->getOperand(2).getReg());
// FALL THROUGH.
case X86::UNPCKHPSrm:
DecodeUNPCKHPMask(4, ShuffleMask);
Src1Name = getRegName(MI->getOperand(0).getReg());
break;
}