If we are compiling with -fno-builtin then don't do constant folding of
builtins.
This fixes PR11711.
llvm-svn: 147655
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index 3e5a677..f462ee6 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -175,7 +175,8 @@
unsigned BuiltinID, const CallExpr *E) {
// See if we can constant fold this builtin. If so, don't emit it at all.
Expr::EvalResult Result;
- if (E->EvaluateAsRValue(Result, CGM.getContext()) &&
+ if (!getContext().getLangOptions().NoBuiltin &&
+ E->EvaluateAsRValue(Result, CGM.getContext()) &&
!Result.hasSideEffects()) {
if (Result.Val.isInt())
return RValue::get(llvm::ConstantInt::get(getLLVMContext(),