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* Remove irrelevant references to legacy git repositories fromJames Y Knight2019-01-151-2/+2
| | | | | | | | | compiler identification lines in test-cases. (Doing so only because it's then easier to search for references which are actually important and need fixing.) llvm-svn: 351200
* [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.Shiva Chen2018-05-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to set breakpoints on labels and list source code around labels, we need collect debug information for labels, i.e., label name, the function label belong, line number in the file, and the address label located. In order to keep these information in LLVM IR and to allow backend to generate debug information correctly. We create a new kind of metadata for labels, DILabel. The format of DILabel is !DILabel(scope: !1, name: "foo", file: !2, line: 3) We hope to keep debug information as much as possible even the code is optimized. So, we create a new kind of intrinsic for label metadata to avoid the metadata is eliminated with basic block. The intrinsic will keep existing if we keep it from optimized out. The format of the intrinsic is llvm.dbg.label(metadata !1) It has only one argument, that is the DILabel metadata. The intrinsic will follow the label immediately. Backend could get the label metadata through the intrinsic's parameter. We also create DIBuilder API for labels to be used by Frontend. Frontend could use createLabel() to allocate DILabel objects, and use insertLabel() to insert llvm.dbg.label intrinsic in LLVM IR. Differential Revision: https://reviews.llvm.org/D45024 Patch by Hsiangkai Wang. llvm-svn: 331841
* DebugInfo: add bitcode upgrade test for alignment Victor Leschuk2016-10-261-0/+23
| | | | | | Bitcode format was changed in D25073, this adds bitcode upgrade test. llvm-svn: 285179
* DebugInfo: remove broken bitcode upgrade testVictor Leschuk2016-10-201-43/+0
| | | | llvm-svn: 284682
* DebugInfo: preparation to implement DW_AT_alignmentVictor Leschuk2016-10-201-0/+43
- Add alignment attribute to DIVariable family - Modify bitcode format to match new DIVariable representation - Update tests to match these changes (also add bitcode upgrade test) - Expect that frontend passes non-zero align value only when it is not default (was forcibly aligned by alignas()/_Alignas()/__atribute__(aligned()) Differential Revision: https://reviews.llvm.org/D25073 llvm-svn: 284678
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