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Add support for parsing a Real value. It stores the Real value as its binary

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encoding. It's up to the individual back-ends to convert it to their preferred
representation when printing.

llvm-svn: 124229
This commit is contained in:
Bill Wendling 2011-01-25 21:26:41 +00:00
parent 29e8317caa
commit 195d8c3988
1 changed files with 7 additions and 1 deletions
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8
lib/MC/MCParser/AsmParser.cpp
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@ -563,6 +563,13 @@ bool AsmParser::ParsePrimaryExpr(const MCExpr *&Res, SMLoc &EndLoc) {
}
return false;
}
case AsmToken::Real: {
APFloat RealVal(APFloat::IEEEdouble, getTok().getString());
int64_t IntVal = RealVal.bitcastToAPInt().getSExtValue();
Res = MCConstantExpr::Create(IntVal, getContext());
Lex(); // Eat token.
return false;
}
case AsmToken::Dot: {
// This is a '.' reference, which references the current PC. Emit a
// temporary label to the streamer and refer to it.
@ -573,7 +580,6 @@ bool AsmParser::ParsePrimaryExpr(const MCExpr *&Res, SMLoc &EndLoc) {
Lex(); // Eat identifier.
return false;
}
case AsmToken::LParen:
Lex(); // Eat the '('.
return ParseParenExpr(Res, EndLoc);