[clang] [llvm] Non constant size and offset in DWARF (PR #141106)

[LLVM Continuous Integration via cfe-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-nvptx64-nvidia-win` running on `as-builder-8` while building `clang,llvm` at step 7 "test-build-unified-tree-check-llvm".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/155/builds/10442

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 7 (test-build-unified-tree-check-llvm) failure: test (failure)
******************** TEST 'LLVM :: DebugInfo/dynamic-bitfield.ll' FAILED ********************
Exit Code: 2

Command Output (stdout):
--
# RUN: at line 1
c:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\build\bin\llc.exe -O0 -filetype=obj -o - C:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\llvm-project\llvm\test\DebugInfo\dynamic-bitfield.ll | c:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\build\bin\llvm-dwarfdump.exe -v -debug-info - | c:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\build\bin\filecheck.exe C:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\llvm-project\llvm\test\DebugInfo\dynamic-bitfield.ll
# executed command: 'c:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\build\bin\llc.exe' -O0 -filetype=obj -o - 'C:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\llvm-project\llvm\test\DebugInfo\dynamic-bitfield.ll'
# .---command stderr------------
# | c:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\build\bin\llc.exe: error: createMCCodeEmitter failed
# `-----------------------------
# error: command failed with exit status: 1
# executed command: 'c:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\build\bin\llvm-dwarfdump.exe' -v -debug-info -
# .---command stderr------------
# | error: -: The file was not recognized as a valid object file
# `-----------------------------
# error: command failed with exit status: 1
# executed command: 'c:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\build\bin\filecheck.exe' 'C:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\llvm-project\llvm\test\DebugInfo\dynamic-bitfield.ll'
# .---command stderr------------
# | FileCheck error: '<stdin>' is empty.
# | FileCheck command line:  c:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\build\bin\filecheck.exe C:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\llvm-project\llvm\test\DebugInfo\dynamic-bitfield.ll
# `-----------------------------
# error: command failed with exit status: 2

--

********************


```

</details>

https://github.com/llvm/llvm-project/pull/141106