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* Revert "debuginfo: Use symbol difference for CU length to simplify assembly ↵Jordan Rupprecht2018-12-111-9/+2
| | | | | | | | reading/editing" Temporarily reverts commit r348806 due to strange asm compilation issues in certain modes (combination of asan+cuda+other things). Will provide repro soon. llvm-svn: 348898
* debuginfo: Use symbol difference for CU length to simplify assembly ↵David Blaikie2018-12-101-2/+9
| | | | | | | | | | | | reading/editing Mucking about simplifying a test case ( https://reviews.llvm.org/D55261 ) I stumbled across something I've hit before - that LLVM's (GCC's does too, FWIW) assembly output includes a hardcode length for a DWARF unit in its header. Instead we could emit a label difference - making the assembly easier to read/edit (though potentially at a slight (I haven't tried to observe it) performance cost of delaying/sinking the length computation into the MC layer). Reviewers: JDevlieghere, probinson, ABataev Differential Revision: https://reviews.llvm.org/D55281 llvm-svn: 348806
* DebugInfo: Remove command line (& target-based) disabling of pubnames in ↵David Blaikie2018-08-161-3/+3
| | | | | | | | | favor of metadata Now that Clang disables NVPTX pubnames via metadata there's no need for this fallback to target detection in the backend. llvm-svn: 339970
* [DEBUGINFO] Add flag for DWARF2 to use sections as references.Alexey Bataev2018-03-231-0/+54
| | | | | | | | | | | | | | | Summary: Some targets does not support labels inside debug sections, but support references in form `section+offset`. Patch adds initial support for this. Reviewers: echristo, probinson, jlebar Subscribers: llvm-commits, JDevlieghere Differential Revision: https://reviews.llvm.org/D43943 llvm-svn: 328314
* Revert "[DEBUGINFO] Add flag for DWARF2 or less to use sections as references."Alexey Bataev2018-03-011-54/+0
| | | | | | | This reverts commit r326328 to remove checks for emission of certain sections after discussion with Eric Christofer. llvm-svn: 326436
* [DEBUGINFO] Add flag for DWARF2 or less to use sections as references.Alexey Bataev2018-02-281-0/+54
Summary: Some targets does not support labels inside debug sections, but support references in form `section +|- offset`. Patch adds initial support for this. Also, this patch disables emission of all additional debug sections that may have labels inside of it (like pub sections and string tables). Reviewers: probinson, echristo Subscribers: JDevlieghere, llvm-commits Differential Revision: https://reviews.llvm.org/D43627 llvm-svn: 326328
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