diff options
Diffstat (limited to 'clang/lib/CodeGen/CGBuiltin.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CGBuiltin.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp index 005c824024f..817589064a3 100644 --- a/clang/lib/CodeGen/CGBuiltin.cpp +++ b/clang/lib/CodeGen/CGBuiltin.cpp @@ -470,10 +470,13 @@ CodeGenFunction::emitBuiltinObjectSize(const Expr *E, unsigned Type, assert(Ptr->getType()->isPointerTy() && "Non-pointer passed to __builtin_object_size?"); - // LLVM only supports 0 and 2, make sure that we pass along that as a boolean. - auto *CI = ConstantInt::get(Builder.getInt1Ty(), (Type & 2) >> 1); Value *F = CGM.getIntrinsic(Intrinsic::objectsize, {ResType, Ptr->getType()}); - return Builder.CreateCall(F, {Ptr, CI}); + + // LLVM only supports 0 and 2, make sure that we pass along that as a boolean. + Value *Min = Builder.getInt1((Type & 2) != 0); + // For GCC compatability, __builtin_object_size treat NULL as unknown size. + Value *NullIsUnknown = Builder.getTrue(); + return Builder.CreateCall(F, {Ptr, Min, NullIsUnknown}); } // Many of MSVC builtins are on both x64 and ARM; to avoid repeating code, we |
