[llvm-bugs] [Bug 41365] New: [codeview] Clang should use a better DISubprogram name for dynamic initializer functions

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=41365

            Bug ID: 41365
           Summary: [codeview] Clang should use a better DISubprogram name
                    for dynamic initializer functions
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: LLVM Codegen
          Assignee: unassignedclangbugs at nondot.org
          Reporter: rnk at google.com
                CC: llvm-bugs at lists.llvm.org, neeilans at live.com,
                    richard-llvm at metafoo.co.uk

Otherwise the IDE will display the mangled name, which is silly.

Today, in VS, I see this stack frame:
>	llvm-tblgen.exe!??__EMatchPrefix@@YAXXZ() Line 129	C++

Which is because we emit S_LPROC32_ID like this:
       0 | S_LPROC32_ID [size = 56] `??__Ef@@YAXXZ`
           parent = 0, end = 0, addr = 0000:0000, code size = 26
           type = `0x1004 (??__Ef@@YAXXZ)`, debug start = 0, debug end = 0,
flags = none

Which is because we emit the DISubprogram like this:
!33 = distinct !DISubprogram(name: "??__Ef@@YAXXZ", scope: !3, file: !3, line:
12, type: !34, isLocal: true, isDefinition: true, scopeLine: 12, flags:
DIFlagPrototyped, isO
ptimized: false, unit: !2, retainedNodes: !4)

That "name:" field should be something human friendly instead of the mangled
name.

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