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Recommit "[mips] Add names and tests for the hardware registers"

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The original commit r221299 was reverted in r221307.  I removed the name
"hrw_ulr" ($29) from the original commit because two tests were failing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221681 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Vasileios Kalintiris
2014-11-11 10:31:31 +00:00
parent 1dd631fe02
commit d3da72c5b3
7 changed files with 253 additions and 4 deletions
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30
lib/Target/Mips/AsmParser/MipsAsmParser.cpp
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@@ -221,6 +221,8 @@ class MipsAsmParser : public MCTargetAsmParser {
int matchCPURegisterName(StringRef Symbol);
int matchHWRegsRegisterName(StringRef Symbol);
int matchRegisterByNumber(unsigned RegNum, unsigned RegClass);
int matchFPURegisterName(StringRef Name);
@@ -857,6 +859,14 @@ public:
return CreateReg(Index, RegKind_FGR, RegInfo, S, E, Parser);
}
/// Create a register that is definitely a HWReg.
/// This is typically only used for named registers such as $hwr_cpunum.
static std::unique_ptr<MipsOperand>
createHWRegsReg(unsigned Index, const MCRegisterInfo *RegInfo,
SMLoc S, SMLoc E, MipsAsmParser &Parser) {
return CreateReg(Index, RegKind_HWRegs, RegInfo, S, E, Parser);
}
/// Create a register that is definitely an FCC.
/// This is typically only used for named registers such as $fcc0.
static std::unique_ptr<MipsOperand>
@@ -1803,6 +1813,19 @@ int MipsAsmParser::matchCPURegisterName(StringRef Name) {
return CC;
}
int MipsAsmParser::matchHWRegsRegisterName(StringRef Name) {
int CC;
CC = StringSwitch<unsigned>(Name)
.Case("hwr_cpunum", 0)
.Case("hwr_synci_step", 1)
.Case("hwr_cc", 2)
.Case("hwr_ccres", 3)
.Default(-1);
return CC;
}
int MipsAsmParser::matchFPURegisterName(StringRef Name) {
if (Name[0] == 'f') {
@@ -2290,6 +2313,13 @@ MipsAsmParser::matchAnyRegisterNameWithoutDollar(OperandVector &Operands,
return MatchOperand_Success;
}
Index = matchHWRegsRegisterName(Identifier);
if (Index != -1) {
Operands.push_back(MipsOperand::createHWRegsReg(
Index, getContext().getRegisterInfo(), S, getLexer().getLoc(), *this));
return MatchOperand_Success;
}
Index = matchFPURegisterName(Identifier);
if (Index != -1) {
Operands.push_back(MipsOperand::createFGRReg(