[llvm-bugs] [Bug 32042] New: conflicting debug info for argument in windows chromium build after r295749

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=32042

            Bug ID: 32042
           Summary: conflicting debug info for argument in windows
                    chromium build after r295749
           Product: new-bugs
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: hans at chromium.org
                CC: aprantl at apple.com, llvm-bugs at lists.llvm.org

$ bin/clang -cc1 -triple x86_64-pc-windows-msvc19.0.0 -emit-obj
-mconstructor-aliases -munwind-tables -target-cpu x86-64  -fno-rtti-data
-gcodeview -gcodeview -debug-info-kind=limited -debugger-tuning=gdb
-ffunction-sections -fdata-sections  -Os -fdeprecated-macro -fms-extensions
-fms-compatibility -fms-compatibility-version=19.0 -std=c++14
-fdelayed-template-parsing -finline-functions -vectorize-loops -vectorize-slp
-x c++ a.ii -w
conflicting debug info for argument
  call void @llvm.dbg.declare(metadata %"class.password_manager::(anonymous
namespace)::MockFormFetcherImpl"** %this.addr, metadata !24506, metadata
!22235), !dbg !24509
!24505 = !DILocalVariable(name: "args", arg: 1, scope: !24487, file: !3, line:
119, type: !9722)
!24506 = !DILocalVariable(name: "this", arg: 1, scope: !24487, type: !14549,
flags: DIFlagArtificial | DIFlagObjectPointer)
clang: ../lib/IR/Verifier.cpp:4552: virtual bool
{anonymous}::VerifierLegacyPass::doFinalization(llvm::Module&): Assertion
`!V->hasBrokenDebugInfo() && "Module contains invalid debug info"' failed.

Reverting r295749 makes it go away.

(And does that have any relation to r295486, which got merged to 4.0?

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