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* Enhance bool simplifcation in X86 to handle more casesMichael Liao2013-04-11
| | | | | | | | | | | | | | This patch is revised based on patch from Victor Umansky <victor.umansky@intel.com>. More cases are handled in X86's bool simplification, i.e. - SETCC_CARRY - value is truncated to i1 with AND As a by-product, PR5443 is also fixed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179265 91177308-0d34-0410-b5e6-96231b3b80d8
* Reverted commit #147601 upon Evan's request.Victor Umansky2012-01-08
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147748 91177308-0d34-0410-b5e6-96231b3b80d8
* Peephole optimization of ptest-conditioned branch in X86 arch. Performs ↵Victor Umansky2012-01-05
instruction combining of sequences generated by ptestz/ptestc intrinsics to ptest+jcc pair for SSE and AVX. Testing: passed 'make check' including LIT tests for all sequences being handled (both SSE and AVX) Reviewers: Evan Cheng, David Blaikie, Bruno Lopes, Elena Demikhovsky, Chad Rosier, Anton Korobeynikov git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147601 91177308-0d34-0410-b5e6-96231b3b80d8
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