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* Revert revisions r234755, r234759, r234760Jan Vesely2015-04-131-1/+3
| | | | | | | | | | | Revert "Remove default in fully-covered switch (to fix Clang -Werror -Wcovered-switch-default)" Revert "R600: Add carry and borrow instructions. Use them to implement UADDO/USUBO" Revert "LegalizeDAG: Try to use Overflow operations when expanding ADD/SUB" Using overflow operations fails CodeGen/Generic/2011-07-07-ScheduleDAGCrash.ll on hexagon, nvptx, and r600. Revert while I investigate. llvm-svn: 234768
* LegalizeDAG: Try to use Overflow operations when expanding ADD/SUBJan Vesely2015-04-131-3/+1
| | | | | | | | | | v2: consider BooleanContents when processing overflow Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu> Reviewers: resistor, jholewinsky (nvidia parts) Differential Revision: http://reviews.llvm.org/D6340 llvm-svn: 234755
* [NVPTX] 64-bit ADDC/ADDE are not legalJustin Holewinski2013-07-011-0/+19
llvm-svn: 185333
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