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[ms-inline asm] Simplify logic for empty asm statements. 

llvm-svn: 161615
This commit is contained in:
Chad Rosier 2012-08-09 20:52:43 +00:00
parent 11ede938e9
commit 543cb3e93a
1 changed files with 10 additions and 0 deletions
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10
clang/lib/Sema/SemaStmt.cpp
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@ -2888,6 +2888,16 @@ StmtResult Sema::ActOnMSAsmStmt(SourceLocation AsmLoc,
// MS-style inline assembly is not fully supported, so emit a warning.
Diag(AsmLoc, diag::warn_unsupported_msasm);
// Empty asm statements don't need to instantiate the AsmParser, etc.
if (AsmToks.empty()) {
std::string AsmString;
MSAsmStmt *NS =
new (Context) MSAsmStmt(Context, AsmLoc, /* IsSimple */ true,
/* IsVolatile */ true, AsmToks, LineEnds,
AsmString, EndLoc);
return Owned(NS);
}
std::string AsmString = buildMSAsmString(*this, AsmToks, LineEnds);
bool IsSimple;