maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

MIR Parser: Extract the IR constant parsing code into a new method. NFC. 

This commit extracts the code that parses the IR constant values into a new
method named 'parseIRConstant' in the 'MIParser' class. The new method will
be reused by the code that parses the typed integer immediate machine operands.

llvm-svn: 244093
This commit is contained in:
Alex Lorenz 2015-08-05 18:44:00 +00:00
parent d45c2df4ab
commit 7eaff4c7d6
1 changed files with 14 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
llvm/lib/CodeGen/MIRParser/MIParser.cpp
View File

@ -99,6 +99,7 @@ public:
bool parseSubRegisterIndex(unsigned &SubReg);
bool parseRegisterOperand(MachineOperand &Dest, bool IsDef = false);
bool parseImmediateOperand(MachineOperand &Dest);
bool parseIRConstant(StringRef::iterator Loc, const Constant *&C);
bool parseFPImmediateOperand(MachineOperand &Dest);
bool parseMBBReference(MachineBasicBlock *&MBB);
bool parseMBBOperand(MachineOperand &Dest);
@ -557,18 +558,24 @@ bool MIParser::parseImmediateOperand(MachineOperand &Dest) {
return false;
}
bool MIParser::parseIRConstant(StringRef::iterator Loc, const Constant *&C) {
auto Source = StringRef(Loc, Token.stringValue().end() - Loc).str();
lex();
SMDiagnostic Err;
C = parseConstantValue(Source.c_str(), Err, *MF.getFunction()->getParent());
if (!C)
return error(Loc + Err.getColumnNo(), Err.getMessage());
return false;
}
bool MIParser::parseFPImmediateOperand(MachineOperand &Dest) {
auto Loc = Token.location();
lex();
if (Token.isNot(MIToken::FloatingPointLiteral))
return error("expected a floating point literal");
auto Source = StringRef(Loc, Token.stringValue().end() - Loc).str();
lex();
SMDiagnostic Err;
const Constant *C =
parseConstantValue(Source.c_str(), Err, *MF.getFunction()->getParent());
if (!C)
return error(Loc + Err.getColumnNo(), Err.getMessage());
const Constant *C = nullptr;
if (parseIRConstant(Loc, C))
return true;
Dest = MachineOperand::CreateFPImm(cast<ConstantFP>(C));
return false;
}