[Flang][debug] conflicting debug info for argument

[k-arrows]

Reproducible on Godbolt:
https://godbolt.org/z/c8e9ob5Gb

Reproducer:

function s(x)
    character(len=2) :: x, s, ss

    s = x

    entry ss()

end function s

Error message:

conflicting debug info for argument
#dbg_declare(ptr %0, !15, !DIExpression(), !11)
!12 = !DILocalVariable(name: "s", arg: 1, scope: !4, file: !2, line: 2, type: !9)
!15 = !DILocalVariable(name: "ss", arg: 1, scope: !4, file: !2, line: 2, type: !9)
conflicting debug info for argument
#dbg_declare(ptr %0, !25, !DIExpression(), !23)
!22 = !DILocalVariable(name: "s", arg: 1, scope: !18, file: !2, line: 2, type: !9)
!25 = !DILocalVariable(name: "ss", arg: 1, scope: !18, file: !2, line: 2, type: !9)
error: failed to create the LLVM module

[llvmbot]

@llvm/issue-subscribers-debuginfo

Author: None (k-arrows)

Reproducible on Godbolt: https://godbolt.org/z/c8e9ob5Gb

Reproducer:

function s(x)
    character(len=2) :: x, s, ss

    s = x

    entry ss()

end function s

Error message:

conflicting debug info for argument
#dbg_declare(ptr %0, !15, !DIExpression(), !11)
!12 = !DILocalVariable(name: "s", arg: 1, scope: !4, file: !2, line: 2, type: !9)
!15 = !DILocalVariable(name: "ss", arg: 1, scope: !4, file: !2, line: 2, type: !9)
conflicting debug info for argument
#dbg_declare(ptr %0, !25, !DIExpression(), !23)
!22 = !DILocalVariable(name: "s", arg: 1, scope: !18, file: !2, line: 2, type: !9)
!25 = !DILocalVariable(name: "ss", arg: 1, scope: !18, file: !2, line: 2, type: !9)
error: failed to create the LLVM module

[llvmbot]

@llvm/issue-subscribers-flang-ir

Author: None (k-arrows)

Reproducible on Godbolt: https://godbolt.org/z/c8e9ob5Gb

Reproducer:

function s(x)
    character(len=2) :: x, s, ss

    s = x

    entry ss()

end function s

Error message:

conflicting debug info for argument
#dbg_declare(ptr %0, !15, !DIExpression(), !11)
!12 = !DILocalVariable(name: "s", arg: 1, scope: !4, file: !2, line: 2, type: !9)
!15 = !DILocalVariable(name: "ss", arg: 1, scope: !4, file: !2, line: 2, type: !9)
conflicting debug info for argument
#dbg_declare(ptr %0, !25, !DIExpression(), !23)
!22 = !DILocalVariable(name: "s", arg: 1, scope: !18, file: !2, line: 2, type: !9)
!25 = !DILocalVariable(name: "ss", arg: 1, scope: !18, file: !2, line: 2, type: !9)
error: failed to create the LLVM module

[jiel-nv]

I came across this issue while testing flang recently. And the mojority of the test failures are hittting this problem. @abidh, would you mind taking a look at this when you get a chance? Thanks!

[abidh]

I came across this issue while testing flang recently. And the mojority of the test failures are hittting this problem. @abidh, would you mind taking a look at this when you get a chance? Thanks!

Thanks for pointing me to it. I will investigate.

[abidh]

Hi @jieljiel

I have opened #120726 to fix this issue. I could not add you as a reviewer as your name would not come in the list. But please have a look and see if this fixes your issue.