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Make CallExpr::isBuiltinConstantExpr slightly more efficient. 

llvm-svn: 46594
This commit is contained in:
Anders Carlsson 2008-01-31 02:13:57 +00:00
parent f6e3b32964
commit fbcf676a65
1 changed files with 10 additions and 3 deletions
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13
clang/AST/Expr.cpp
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@ -130,9 +130,16 @@ bool CallExpr::isBuiltinConstantExpr() const {
if (!DRE)
return false;
// We have a DeclRefExpr.
if (strcmp(DRE->getDecl()->getName(),
"__builtin___CFStringMakeConstantString") == 0)
const FunctionDecl *FDecl = dyn_cast<FunctionDecl>(DRE->getDecl());
if (!FDecl)
return false;
unsigned builtinID = FDecl->getIdentifier()->getBuiltinID();
if (!builtinID)
return false;
// We have a builtin that is a constant expression
if (builtinID == Builtin::BI__builtin___CFStringMakeConstantString)
return true;
return false;
}