[LLVMbugs] [Bug 18175] New: [-cxx-abi microsoft] bad mangling given for large constants

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=18175

            Bug ID: 18175
           Summary: [-cxx-abi microsoft] bad mangling given for large
                    constants
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: LLVM Codegen
          Assignee: unassignedclangbugs at nondot.org
          Reporter: david.majnemer at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

consider:
enum class A : unsigned long long {
  z = (unsigned long long)-1
};
const A c{ A::z };
template <enum A : unsigned long long > struct Q {};
Q<c> j;

we get:
?j@@3U?$Q@$0PPPPPPPPPPPPPPPP@@@A

we should get:
?j@@3U?$Q@$0?0@@A

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