Benjamin Kramer 4fc719e607 instcombine: fold (x & y) | (~x & z) and (x & y) ^ (~x & z) into ((y ^ z) & x) ^ z which is one instruction shorter. (PR6773) ...

before:
  %and = and i32 %y, %x
  %neg = xor i32 %x, -1
  %and4 = and i32 %z, %neg
  %xor = xor i32 %and4, %and

after:
  %xor1 = xor i32 %z, %y
  %and2 = and i32 %xor1, %x
  %xor = xor i32 %and2, %z


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108136 91177308-0d34-0410-b5e6-96231b3b80d8

2010-07-12 11:54:45 +00:00

..

CMakeLists.txt

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InstCombine.h

use ArgOperand API, also tighten the type of visitFree to make this work out smoothly

2010-06-24 12:21:15 +00:00

InstCombineAddSub.cpp

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InstCombineAndOrXor.cpp

instcombine: fold (x & y) | (~x & z) and (x & y) ^ (~x & z) into ((y ^ z) & x) ^ z which is one instruction shorter. (PR6773)

2010-07-12 11:54:45 +00:00

InstCombineCalls.cpp

use getArgOperand (corrected by CallInst::ArgOffset) instead of getOperand

2010-06-30 12:38:26 +00:00

InstCombineCasts.cpp

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InstCombineCompares.cpp

Convert some tab stops into spaces.

2010-07-12 08:16:59 +00:00

InstCombineLoadStoreAlloca.cpp

do not repeatedly dereference use_iterator

2010-07-09 12:23:50 +00:00

InstCombineMulDivRem.cpp

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InstCombinePHI.cpp

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InstCombineSelect.cpp

Teach instcombine to transform

2010-07-08 11:39:10 +00:00

InstCombineShifts.cpp

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InstCombineSimplifyDemanded.cpp

use ArgOperand API

2010-06-28 16:45:00 +00:00

InstCombineVectorOps.cpp

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InstCombineWorklist.h

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InstructionCombining.cpp

cache result of operator*

2010-07-09 15:01:36 +00:00

Makefile

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