diff options
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/CGBuiltin.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp index 987cd24e2c..29b46611e2 100644 --- a/lib/CodeGen/CGBuiltin.cpp +++ b/lib/CodeGen/CGBuiltin.cpp @@ -199,6 +199,16 @@ RValue CodeGenFunction::EmitBuiltinExpr(const FunctionDecl *FD, return RValue::get(Builder.CreateCall(F, ArgValue, "tmp")); } case Builtin::BI__builtin_object_size: { + // FIXME: We're awaiting the llvm intrincis. +#if 0 + // We pass this builtin onto the optimizer so that it can + // figure out the object size in more complex cases. + Value *F = CGM.getIntrinsic(Intrinsic::objectsize, 0, 0); + Builder.CreateCall2(F, + EmitScalarExpr(E->getArg(0))); + EmitScalarExpr(E->getArg(1))); + return RValue::get(Address); +#else // FIXME: Implement. For now we just always fail and pretend we // don't know the object size. llvm::APSInt TypeArg = E->getArg(1)->EvaluateAsInt(CGM.getContext()); @@ -207,6 +217,7 @@ RValue CodeGenFunction::EmitBuiltinExpr(const FunctionDecl *FD, bool UseMinimum = TypeArg.getZExtValue() & 2; return RValue::get( llvm::ConstantInt::get(ResType, UseMinimum ? 0 : -1LL)); +#endif } case Builtin::BI__builtin_prefetch: { Value *Locality, *RW, *Address = EmitScalarExpr(E->getArg(0)); |