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Fix a bug in the MC asm parser evaluating expressions. It was treating:

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A = 9
B = 3 * A - 2 * A + 1 as  B = 3 * A - (2 * A + 1)

rdar://13816516

llvm-svn: 181366
This commit is contained in:
Kevin Enderby 2013-05-07 21:40:58 +00:00
parent 0e8a5b9d09
commit 4562d15159
2 changed files with 2 additions and 1 deletions
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2
lib/MC/MCParser/AsmParser.cpp
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@ -1092,7 +1092,7 @@ bool AsmParser::ParseBinOpRHS(unsigned Precedence, const MCExpr *&Res,
MCBinaryExpr::Opcode Dummy;
unsigned NextTokPrec = getBinOpPrecedence(Lexer.getKind(), Dummy);
if (TokPrec < NextTokPrec) {
if (ParseBinOpRHS(Precedence+1, RHS, EndLoc)) return true;
if (ParseBinOpRHS(TokPrec+1, RHS, EndLoc)) return true;
}
// Merge LHS and RHS according to operator.

1
test/MC/AsmParser/exprs.s
View File

@ -45,6 +45,7 @@ k:
check_expr 0 || 0, 0
check_expr 1 + 2 < 3 + 4, 1
check_expr 1 << 8 - 1, 128
check_expr 3 * 9 - 2 * 9 + 1, 10
.set c, 10
check_expr c + 1, 11