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[RISCV][NFC] Use NoRegister instead of 0 literal 

Summary: Trivial cleanup.

Reviewers: asb, lenary

Reviewed By: lenary

Subscribers: hiraditya, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, kito-cheng, shiva0217, jrtc27, MaskRay, zzheng, edward-jones, rogfer01, MartinMosbeck, brucehoult, the_o, rkruppe, PkmX, jocewei, psnobl, benna, Jim, s.egerton, pzheng, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D67526

llvm-svn: 372120
This commit is contained in:
Luis Marques 2019-09-17 13:34:17 +00:00
parent 47e95ff813
commit 6cf896b284
1 changed files with 4 additions and 4 deletions
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8
llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp
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@ -986,11 +986,11 @@ bool RISCVAsmParser::MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
static bool matchRegisterNameHelper(bool IsRV32E, Register &RegNo,
StringRef Name) {
RegNo = MatchRegisterName(Name);
if (RegNo == 0)
if (RegNo == NoRegister)
RegNo = MatchRegisterAltName(Name);
if (IsRV32E && RegNo >= RISCV::X16 && RegNo <= RISCV::X31)
RegNo = 0;
return RegNo == 0;
RegNo = NoRegister;
return RegNo == NoRegister;
}
bool RISCVAsmParser::ParseRegister(unsigned &RegNo, SMLoc &StartLoc,
@ -1036,7 +1036,7 @@ OperandMatchResultTy RISCVAsmParser::parseRegister(OperandVector &Operands,
Register RegNo;
matchRegisterNameHelper(isRV32E(), RegNo, Name);
if (RegNo == 0) {
if (RegNo == NoRegister) {
if (HadParens)
getLexer().UnLex(LParen);
return MatchOperand_NoMatch;