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Author	SHA1	Message	Date
Scott Linder	354944d675	[DebugInfo] Fully implement DWARF issue 180201.1 (#149226 ) Finish making LLVM's implementation of `DW_LNCT_LLVM_source` conform to the final accepted version of `DW_LNCT_source` from https://dwarfstd.org/issues/180201.1.html This is effectively a continuation of a few commits which have moved in this direction already, including: * c9cb4fc761cd7 [DebugInfo] Store optional DIFile::Source as pointer * 87e22bdd2bd6d Allow for mixing source/no-source DIFiles in one CU This patch: * Teaches LLParser that there is a distinction between an empty and an absent "source:" field on DIFile. * Makes printing the "source:" field in AsmWriter conditional on it being present, instead of being conditional on it being non-empty. * Teaches MC to map an empty-but-present source field to "\n" (which is ambiguous, making the source strings "" and "\n" indistinguishable, but that's what the DWARF issue specifies). Add a test for round-tripping an empty source field through assembler/bitcode. Extend the test for the actual DWARF generation so it covers all of the cases (absent, present-but-empty, present-and-ambiguously-single-newline, present).	2025-07-21 18:42:21 -04:00
Jake Egan	70187ebadf	[AIX][tests] Disable mixed-source.ll test using debug_addr section AIX doesn't support the `debug_addr` section. See related PR: #71814	2023-12-01 13:51:23 -05:00
Adrian Prantl	87e22bdd2b	Allow for mixing source/no-source DIFiles in one CU The DWARF proposal that the DW_LNCT_LLVM_source extension is based on (https://dwarfstd.org/issues/180201.1.html) allows to mix source and non-source files in the same CU by storing an empty string as a sentinel value. This patch implements this feature. Review in https://github.com/llvm/llvm-project/pull/73877	2023-11-30 15:09:24 -08:00

Author

SHA1

Message

Date

Scott Linder

354944d675

[DebugInfo] Fully implement DWARF issue 180201.1 (#149226 )

Finish making LLVM's implementation of `DW_LNCT_LLVM_source` conform to
the final accepted version of `DW_LNCT_source` from
https://dwarfstd.org/issues/180201.1.html

This is effectively a continuation of a few commits which have moved in
this direction already, including:

* c9cb4fc761cd7 [DebugInfo] Store optional DIFile::Source as pointer
* 87e22bdd2bd6d Allow for mixing source/no-source DIFiles in one CU

This patch:

* Teaches LLParser that there is a distinction between an empty and an
absent "source:" field on DIFile.
* Makes printing the "source:" field in AsmWriter conditional on it
being present, instead of being conditional on it being non-empty.
* Teaches MC to map an empty-but-present source field to "\n" (which is
ambiguous, making the source strings "" and "\n" indistinguishable, but
that's what the DWARF issue specifies).

Add a test for round-tripping an empty source field through
assembler/bitcode.

Extend the test for the actual DWARF generation so it covers all of the
cases (absent, present-but-empty,
present-and-ambiguously-single-newline, present).

2025-07-21 18:42:21 -04:00

Jake Egan

70187ebadf

[AIX][tests] Disable mixed-source.ll test using debug_addr section

AIX doesn't support the `debug_addr` section.

See related PR: #71814

2023-12-01 13:51:23 -05:00

Adrian Prantl

87e22bdd2b

Allow for mixing source/no-source DIFiles in one CU

The DWARF proposal that the DW_LNCT_LLVM_source extension is based on
(https://dwarfstd.org/issues/180201.1.html) allows to mix source and
non-source files in the same CU by storing an empty string as a
sentinel value.

This patch implements this feature.

Review in https://github.com/llvm/llvm-project/pull/73877

2023-11-30 15:09:24 -08:00

3 Commits