diff options
Diffstat (limited to 'clang/lib/CodeGen/CGBuiltin.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CGBuiltin.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp index e89997afa1b..177e68e7049 100644 --- a/clang/lib/CodeGen/CGBuiltin.cpp +++ b/clang/lib/CodeGen/CGBuiltin.cpp @@ -199,6 +199,16 @@ RValue CodeGenFunction::EmitBuiltinExpr(unsigned BuiltinID, const CallExpr *E) { Value *F = CGM.getIntrinsic(Intrinsic::bswap, &ArgType, 1); return RValue::get(Builder.CreateCall(F, ArgValue, "tmp")); } + case Builtin::BI__builtin_object_size: { + // FIXME: Implement. For now we just always fail and pretend we + // don't know the object size. + llvm::APSInt TypeArg = + E->getArg(1)->getIntegerConstantExprValue(CGM.getContext()); + const llvm::Type *ResType = ConvertType(E->getType()); + // bool UseSubObject = TypeArg.getZExtValue() & 1; + bool UseMinimum = TypeArg.getZExtValue() & 2; + return RValue::get(ConstantInt::get(ResType, UseMinimum ? 0 : -1LL)); + } case Builtin::BI__builtin_prefetch: { Value *Locality, *RW, *Address = EmitScalarExpr(E->getArg(0)); // FIXME: Technically these constants should of type 'int', yes? |
