[llvm][AsmWriter] Don't skip zero-valued DwarfEnum MDField when ShouldSkipZero is not set #9962
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…dSkipZero is not set I ran into this whil working on a different patch where I'm emitting a zero-valued DWARF enum field which shouldn't be skipped. This patch checks the (currently unused) `ShouldSkipZero` before deciding to skip printing this field. Based on git history this seems like an oversight from the initial refactor that introduced this. We have a similar check in `printInt`. Wasn't sure how to best test this, but tests in an upcoming patch rely on this functionality (see llvm#126045). Currently the only place `ShouldSkipZero` is set to `false` is when emitting the `DW_LANG_` enum. But the language codes start at `0x1`. So it never exercised this codepath (and we should probably just make it not pass this parameter).
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adrian-prantl
approved these changes
Feb 6, 2025
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I ran into this whil working on a different patch where I'm emitting a zero-valued DWARF enum field which shouldn't be skipped.
This patch checks the (currently unused)
ShouldSkipZerobefore deciding to skip printing this field. Based on git history this seems like an oversight from the initial refactor that introduced this. We have a similar check inprintInt.Wasn't sure how to best test this, but tests in an upcoming patch rely on this functionality (see llvm#126045).
Currently the only place
ShouldSkipZerois set tofalseis when emitting theDW_LANG_enum. But the language codes start at0x1. So it never exercised this codepath (and we should probably just make it not pass this parameter).