Error truncation removes helpful information

[davidchisnall]

Bugzilla Link	9729
Resolution	FIXED
Resolved on	Aug 07, 2018 06:49
Version	trunk
OS	All

Extended Description

I recently got this error compiling some code with clang:

CGObjCGNU.cpp:250:9: error: call to 'get' is ambiguous
IdTy = llvm::StructType::get(Context, OpaqueIdTy, NULL);
^~~~~~~~~~~~~~~~~~~~~
/usr/home/theraven/llvm/include/llvm/DerivedTypes.h:246:22: note: candidate function
static StructType *get(LLVMContext &Context,
^
/usr/home/theraven/llvm/include/llvm/DerivedTypes.h:260:22: note: candidate function
static StructType *get(LLVMContext &Context,
^
1 error generated.

From the two error lines, the candidate functions appear identical. In contrast, GCC gives this error:

error: ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second:
/usr/home/theraven/llvm/include/llvm/DerivedTypes.h:248: note: candidate 1: static llvm::StructType* llvm::StructType::get(llvm::LLVMContext&, llvm::ArrayRef<const llvm::Type*>, bool)
/usr/home/theraven/llvm/include/llvm/DerivedTypes.h:261: note: candidate 2: static llvm::StructType* llvm::StructType::get(llvm::LLVMContext&, const llvm::Type*, ...)

While this isn't as pretty, it does actually give me useful information.

[davidchisnall]

This was fixed some time ago.