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| author | David Chisnall <csdavec@swan.ac.uk> | 2012-01-06 12:20:19 +0000 |
|---|---|---|
| committer | David Chisnall <csdavec@swan.ac.uk> | 2012-01-06 12:20:19 +0000 |
| commit | 843cc5aaed8c1b2e750aeef3ba13959f0ee117cc (patch) | |
| tree | dc233edc58465f31890ed4b1af6180934ec4034c /lib/CodeGen | |
| parent | 092beef87b367e62f96c0057118ba540777de452 (diff) | |
If we are compiling with -fno-builtin then don't do constant folding of
builtins.
This fixes PR11711.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147655 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/CGBuiltin.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp index 3e5a6772eb..f462ee62ad 100644 --- a/lib/CodeGen/CGBuiltin.cpp +++ b/lib/CodeGen/CGBuiltin.cpp @@ -175,7 +175,8 @@ RValue CodeGenFunction::EmitBuiltinExpr(const FunctionDecl *FD, 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(), |