[llvm] [BOLT][DWARF] Get DWO file via relative path if the CompilationDir does not exist (PR #154515)

[Jinjie Huang via llvm-commits]

Jinjie-Huang wrote:

@ayermolo Currently, it also switched to using make_absolute() to join DWOCompDir and DWOName. This is helpful when DWOName is an absolute path (it prevents any concatenation). Otherwise, if a .dwp file is specified, directly concatenating DWOCompDir and DWOName could trigger an asserting crash when emitting.

PTAL, thanks.

https://github.com/llvm/llvm-project/pull/154515