[all-commits] [llvm/llvm-project] ce17c6: [BOLT][DWARF] Fix --dwarf-output-path (#71886)

[Alexander Yermolovich via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ce17c6d3bac5e27212a17b4534d09d97ab40c386
      https://github.com/llvm/llvm-project/commit/ce17c6d3bac5e27212a17b4534d09d97ab40c386
  Author: Alexander Yermolovich <43973793+ayermolo at users.noreply.github.com>
  Date:   2023-11-10 (Fri, 10 Nov 2023)

  Changed paths:
    M bolt/lib/Rewrite/DWARFRewriter.cpp
    A bolt/test/X86/Inputs/dwarf5-df-output-dir-same-name-helper.s
    A bolt/test/X86/Inputs/dwarf5-df-output-dir-same-name-main.s
    A bolt/test/X86/dwarf5-df-output-dir-same-name.test

  Log Message:
  -----------
  [BOLT][DWARF] Fix --dwarf-output-path (#71886)

Fixed a bug where when --dwarf-output-path is specified
and DW_AT_dwo_name contains part of the path the output path would
contain both.
Which lead to llvm-bolt crash, because the path didn't exist.
Example:
llvm-bolt .... --dwarf-output-path=/some/path/ 
DW_AT_dwo_name  ("objects/o1/split.dwo")

It would try to write .dwo file to /some/path/objects/o1/split.dwo.dwo
instead of to
/some/path/split.dwo.dwo