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Reapply r291025 ("AMDGPU: Remove unneccessary intermediate vector") 

llvm-svn: 291460
This commit is contained in:
Matt Arsenault 2017-01-09 18:44:11 +00:00
parent 8f1f3c40f6
commit 5f45e7890a
1 changed files with 33 additions and 19 deletions
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50
llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
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@ -822,6 +822,7 @@ public:
bool isForcedVOP3() const { return ForcedEncodingSize == 64; }
bool isForcedDPP() const { return ForcedDPP; }
bool isForcedSDWA() const { return ForcedSDWA; }
ArrayRef<unsigned> getMatchedVariants() const;
std::unique_ptr<AMDGPUOperand> parseRegister();
bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc) override;
@ -1630,31 +1631,44 @@ unsigned AMDGPUAsmParser::checkTargetMatchPredicate(MCInst &Inst) {
return Match_Success;
}
// What asm variants we should check
ArrayRef<unsigned> AMDGPUAsmParser::getMatchedVariants() const {
if (getForcedEncodingSize() == 32) {
static const unsigned Variants[] = {AMDGPUAsmVariants::DEFAULT};
return makeArrayRef(Variants);
}
if (isForcedVOP3()) {
static const unsigned Variants[] = {AMDGPUAsmVariants::VOP3};
return makeArrayRef(Variants);
}
if (isForcedSDWA()) {
static const unsigned Variants[] = {AMDGPUAsmVariants::SDWA};
return makeArrayRef(Variants);
}
if (isForcedDPP()) {
static const unsigned Variants[] = {AMDGPUAsmVariants::DPP};
return makeArrayRef(Variants);
}
static const unsigned Variants[] = {
AMDGPUAsmVariants::DEFAULT, AMDGPUAsmVariants::VOP3,
AMDGPUAsmVariants::SDWA, AMDGPUAsmVariants::DPP
};
return makeArrayRef(Variants);
}
bool AMDGPUAsmParser::MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
OperandVector &Operands,
MCStreamer &Out,
uint64_t &ErrorInfo,
bool MatchingInlineAsm) {
// What asm variants we should check
std::vector<unsigned> MatchedVariants;
if (getForcedEncodingSize() == 32) {
MatchedVariants = {AMDGPUAsmVariants::DEFAULT};
} else if (isForcedVOP3()) {
MatchedVariants = {AMDGPUAsmVariants::VOP3};
} else if (isForcedSDWA()) {
MatchedVariants = {AMDGPUAsmVariants::SDWA};
} else if (isForcedDPP()) {
MatchedVariants = {AMDGPUAsmVariants::DPP};
} else {
MatchedVariants = {AMDGPUAsmVariants::DEFAULT,
AMDGPUAsmVariants::VOP3,
AMDGPUAsmVariants::SDWA,
AMDGPUAsmVariants::DPP};
}
MCInst Inst;
unsigned Result = Match_Success;
for (auto Variant : MatchedVariants) {
for (auto Variant : getMatchedVariants()) {
uint64_t EI;
auto R = MatchInstructionImpl(Operands, Inst, EI, MatchingInlineAsm,
Variant);