[LLVMdev] Compiler warnings with gcc-4.7.1

[Yuri]

I just switched gcc from 4.6.2 to 4.7.1 and see the massive amount of 
warnings, see few examples below.
They mostly didn't exist with gcc-4.6.2.

rev.159224

Yuri

/usr/home/yuri/llvm-2012-06/latest-unpatched/llvm-fix/include/llvm/ADT/PointerUnion.h:56:10: 
warning: enumeral mismatch in conditional expression: 
‘llvm::PointerLikeTypeTraits<llvm::PointerUnion<clang::FunctionTemplateDecl*, 
clang::MemberSpecializationInfo*> >::<anonymous enum>’ vs 
‘llvm::PointerLikeTypeTraits<llvm::PointerUnion<clang::FunctionTemplateSpecializationInfo*, 
clang::DependentFunctionTemplateSpecializationInfo*> >::<anonymous 
enum>’ 
[-Wenum-compare]/usr/home/yuri/llvm-2012-06/latest-unpatched/llvm-fix/include/llvm/ADT/PointerUnion.h:56:10: 
warning: enumeral mismatch in conditional expression: 
‘llvm::PointerLikeTypeTraits<const clang::Type*>::<anonymous enum>’ vs 
‘llvm::PointerLikeTypeTraits<clang::TypeSourceInfo*>::<anonymous enum>’ 
[-Wenum-compare]
/usr/home/yuri/llvm-2012-06/latest-unpatched/llvm-fix/include/llvm/ADT/PointerUnion.h: 
In instantiation of ‘class 
llvm::PointerUnionUIntTraits<llvm::PointerUnion<clang::FunctionTemplateDecl*, 
clang::MemberSpecializationInfo*>, 
llvm::PointerUnion<clang::FunctionTemplateSpecializationInfo*, 
clang::DependentFunctionTemplateSpecializationInfo*> >’:
/usr/home/yuri/llvm-2012-06/latest-unpatched/llvm-fix/include/llvm/ADT/PointerIntPair.h:43:8: 
required from ‘class llvm::PointerIntPair<void*, 1u, bool, 
llvm::PointerUnionUIntTraits<llvm::PointerUnion<clang::FunctionTemplateDecl*, 
clang::MemberSpecializationInfo*>, 
llvm::PointerUnion<clang::FunctionTemplateSpecializationInfo*, 
clang::DependentFunctionTemplateSpecializationInfo*> > >’
/usr/home/yuri/llvm-2012-06/latest-unpatched/llvm-fix/include/llvm/ADT/PointerUnion.h:84:11: 
required from ‘class 
llvm::PointerUnion<llvm::PointerUnion<clang::FunctionTemplateDecl*, 
clang::MemberSpecializationInfo*>, 
llvm::PointerUnion<clang::FunctionTemplateSpecializationInfo*, 
clang::DependentFunctionTemplateSpecializationInfo*> >’
/usr/home/yuri/llvm-2012-06/latest-unpatched/llvm-fix/include/llvm/ADT/PointerUnion.h:347:11: 
required from ‘class llvm::PointerUnion4<clang::FunctionTemplateDecl*, 
clang::MemberSpecializationInfo*, 
clang::FunctionTemplateSpecializationInfo*, 
clang::DependentFunctionTemplateSpecializationInfo*>’
/usr/home/yuri/llvm-2012-06/latest-unpatched/llvm-fix/tools/clang/tools/libclang/../../include/clang/AST/Decl.h:1507:5: 
required from here
/usr/home/yuri/llvm-2012-06/latest-unpatched/llvm-fix/include/llvm/ADT/PointerUnion.h:56:10: 
warning: comparison between ‘enum 
llvm::PointerLikeTypeTraits<llvm::PointerUnion<clang::FunctionTemplateDecl*, 
clang::MemberSpecializationInfo*> >::<anonymous>’ and ‘enum 
llvm::PointerLikeTypeTraits<llvm::PointerUnion<clang::FunctionTemplateSpecializationInfo*, 
clang::DependentFunctionTemplateSpecializationInfo*> >::<anonymous>’ 
[-Wenum-compare]
/usr/home/yuri/llvm-2012-06/latest-unpatched/llvm-fix/include/llvm/ADT/PointerUnion.h:56:10: 
warning: enumeral mismatch in conditional expression: 
‘llvm::PointerLikeTypeTraits<llvm::PointerUnion<clang::FunctionTemplateDecl*, 
clang::MemberSpecializationInfo*> >::<anonymous enum>’ vs 
‘llvm::PointerLikeTypeTraits<llvm::PointerUnion<clang::FunctionTemplateSpecializationInfo*, 
clang::DependentFunctionTemplateSpecializationInfo*> >::<anonymous 
enum>’ [-Wenum-compare]