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llvm-mirror/lib/Transforms/InstCombine
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Andrea Di Biagio ebacbba071 [InstCombine] Fix wrong folding of constant comparisons involving ashr and negative values. 
This patch fixes a bug in method InstCombiner::FoldCmpCstShrCst where we
wrongly computed the distance between the highest bits set of two negative
values.

This fixes PR21222.

Differential Revision: http://reviews.llvm.org/D5700

llvm-svn: 219406
2014-10-09 12:41:49 +00:00
..
CMakeLists.txt Tidy up a bit. No functional change. 2013-04-05 21:20:12 +00:00
InstCombine.h Revert "[InstCombine] re-commit r218721 with fix for pr21199" 2014-10-08 16:30:22 +00:00
InstCombineAddSub.cpp Format spacing and remove extra lines to comply with standards. NFC. 2014-10-08 08:37:49 +00:00
InstCombineAndOrXor.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
InstCombineCalls.cpp [InstCombine] Simplify the logic from r219067 using ValueTracking 2014-10-05 00:53:02 +00:00
InstCombineCasts.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
InstCombineCompares.cpp [InstCombine] Fix wrong folding of constant comparisons involving ashr and negative values. 2014-10-09 12:41:49 +00:00
InstCombineLoadStoreAlloca.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
InstCombineMulDivRem.cpp Reformat if statement to comply with LLVM standards. NFC. 2014-10-07 12:04:07 +00:00
InstCombinePHI.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
InstCombineSelect.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
InstCombineShifts.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
InstCombineSimplifyDemanded.cpp Add additional patterns for @llvm.assume in ValueTracking 2014-09-07 19:21:07 +00:00
InstCombineVectorOps.cpp fixed some typos 2014-07-07 22:13:58 +00:00
InstCombineWorklist.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
InstructionCombining.cpp Revert "[InstCombine] re-commit r218721 with fix for pr21199" 2014-10-08 16:30:22 +00:00
LLVMBuild.txt LLVMBuild: Remove trailing newline, which irked me. 2011-12-12 19:48:00 +00:00
Makefile