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path: root/llvm/lib/Transforms/Utils/AddDiscriminators.cpp
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* Use DILexicalBlockFile, rather than DILexicalBlock, to track discriminator ↵David Blaikie2014-08-211-4/+2
| | | | | | | | | | | | | | | changes to ensure discriminator changes don't introduce new DWARF DW_TAG_lexical_blocks. Somewhat unnoticed in the original implementation of discriminators, but it could cause instructions to end up in new, small, DW_TAG_lexical_blocks due to the use of DILexicalBlock to track discriminator changes. Instead, use DILexicalBlockFile which we already use to track file changes without introducing new scopes, so it works well to track discriminator changes in the same way. llvm-svn: 216239
* [C++] Use 'nullptr'. Transforms edition.Craig Topper2014-04-251-1/+1
| | | | llvm-svn: 207196
* [Modules] Fix potential ODR violations by sinking the DEBUG_TYPEChandler Carruth2014-04-221-2/+2
| | | | | | | | | | | | | | | | | definition below all of the header #include lines, lib/Transforms/... edition. This one is tricky for two reasons. We again have a couple of passes that define something else before the includes as well. I've sunk their name macros with the DEBUG_TYPE. Also, InstCombine contains headers that need DEBUG_TYPE, so now those headers #define and #undef DEBUG_TYPE around their code, leaving them well formed modular headers. Fixing these headers was a large motivation for all of these changes, as "leaky" macros of this form are hard on the modules implementation. llvm-svn: 206844
* Fix bug 19437 - Only add discriminators for DWARF 4 and above.Diego Novillo2014-04-171-2/+7
| | | | | | | | | | | | | | Summary: This prevents the discriminator generation pass from triggering if the DWARF version being used in the module is prior to 4. Reviewers: echristo, dblaikie CC: llvm-commits Differential Revision: http://reviews.llvm.org/D3413 llvm-svn: 206507
* [Layering] Move DebugInfo.h into the IR library where its implementationChandler Carruth2014-03-061-1/+1
| | | | | | already lives. llvm-svn: 203046
* [Layering] Move DIBuilder.h into the IR library where its implementationChandler Carruth2014-03-061-1/+1
| | | | | | already lives. llvm-svn: 203038
* [C++11] Add 'override' keyword to virtual methods that override their base ↵Craig Topper2014-03-051-1/+1
| | | | | | class. llvm-svn: 202953
* [cleanup] Re-sort all the includes with utils/sort_includes.py.Chandler Carruth2014-03-041-2/+2
| | | | llvm-svn: 202811
* Pass to emit DWARF path discriminators.Diego Novillo2014-03-031-0/+217
DWARF discriminators are used to distinguish multiple control flow paths on the same source location. When this happens, instructions across basic block boundaries will share the same debug location. This pass detects this situation and creates a new lexical scope to one of the two instructions. This lexical scope is a child scope of the original and contains a new discriminator value. This discriminator is then picked up from MCObjectStreamer::EmitDwarfLocDirective to be written on the object file. This fixes http://llvm.org/bugs/show_bug.cgi?id=18270. llvm-svn: 202752
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