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llvm-6502/lib/Transforms/InstCombine
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Hal Finkel 1c0c67a007 Check for all known bits on ret in InstCombine 
From a combination of @llvm.assume calls (and perhaps through other means, such
as range metadata), it is possible that all bits of a return value might be
known. Previously, InstCombine did not check for this (which is understandable
given assumptions of constant propagation), but means that we'd miss simple
cases where assumptions are involved.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217346 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-07 21:28:34 +00:00
..
CMakeLists.txt Tidy up a bit. No functional change. 2013-04-05 21:20:12 +00:00
InstCombine.h Check for all known bits on ret in InstCombine 2014-09-07 21:28:34 +00:00
InstCombineAddSub.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
InstCombineAndOrXor.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
InstCombineCalls.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
InstCombineCasts.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
InstCombineCompares.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
InstCombineLoadStoreAlloca.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +00:00
InstCombineMulDivRem.cpp Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.) 2014-09-07 18:57:58 +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 Check for all known bits on ret in InstCombine 2014-09-07 21:28:34 +00:00
LLVMBuild.txt LLVMBuild: Remove trailing newline, which irked me. 2011-12-12 19:48:00 +00:00
Makefile