dblaikie added a comment.
In D94391#2494316 <https://reviews.llvm.org/D94391#2494316>, @MaskRay wrote:
> I removed `CurLoc` from call sites and tried a stage 2 build. There is such a
> difference:
>
> 0x00062228: DW_TAG_structure_type
> DW_AT_calling_convention (DW_CC_pass_by_value)
> DW_AT_name ("__va_list_tag")
> DW_AT_byte_size (0x18)
> DW_AT_decl_file
> ("/home/maskray/llvm/clang/tools/driver/driver.cpp")
> DW_AT_decl_line (23)
>
> driver.cpp:23 is a `#include`. So this looks strange. The
> DW_AT_decl_file/DW_AT_decl_line attributes are undesired due to `CurLoc`
> getLineNumber.
I don't understand what you're describing - could you describe it in more
detail/help me connect the dots?
It sounds like you're saying you removed the CurLoc fallback and then did a
stage 2 build of clang and found an example of worse debug info (I'm not sure
what file/line this struct was attributed to currently/without the change you
were experimenting with) - that would suggest to me that the CurLoc fallback is
helping, by providing a better location than the one you've mentioned here?
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D94391/new/
https://reviews.llvm.org/D94391
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