Chris Lattner 64daab56c2 Fold A^(B&A) -> (B&A)^A ...

Fold (B&A)^A == ~B & A

This implements InstCombine/xor.ll:test2[56]


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27328 91177308-0d34-0410-b5e6-96231b3b80d8

2006-04-01 08:03:55 +00:00

..

ADCE.cpp

Make iostream #inclusion explicit

2006-01-22 23:32:06 +00:00

BasicBlockPlacement.cpp

…

CondPropagate.cpp

Fix a fixme in CondPropagate.cpp by moving a PhiNode optimization into

2005-08-04 23:24:19 +00:00

ConstantProp.cpp

…

CorrelatedExprs.cpp

Teach cee to propagate through switch statements. This implements

2006-03-19 19:37:24 +00:00

DCE.cpp

…

DeadStoreElimination.cpp

Fix a bug where we didn't realize that vaarg reads memory. This fixes

2005-11-30 19:38:22 +00:00

GCSE.cpp

Switch these to using ETForest instead of DominatorSet to compute itself.

2006-01-11 05:10:20 +00:00

IndVarSimplify.cpp

Fix a crash building 176.gcc due to my recent patch, which only fixed

2005-11-18 18:30:47 +00:00

InstructionCombining.cpp

Fold A^(B&A) -> (B&A)^A

2006-04-01 08:03:55 +00:00

LICM.cpp

Make iostream #inclusion explicit

2006-01-22 23:32:06 +00:00

LoopStrengthReduce.cpp

Fix spello

2006-03-24 07:14:34 +00:00

LoopUnroll.cpp

Make iostream #inclusion explicit

2006-01-22 23:32:06 +00:00

LoopUnswitch.cpp

add the actual cost to the debug info

2006-03-24 07:14:00 +00:00

LowerGC.cpp

FunctionPass's cannot do IPO things.

2006-01-14 19:30:35 +00:00

LowerPacked.cpp

Lowerpacked and SCCP support for the insertelement operation.

2006-01-17 20:06:55 +00:00

Makefile

DONT_BUILD_RELINKED is gone and implied by BUILD_ARCHIVE now

2005-10-24 02:26:13 +00:00

Reassociate.cpp

Implement a FIXME, recusively reassociating

2006-03-14 16:04:29 +00:00

Reg2Mem.cpp

since reg2mem requires it, might as well mention that it preserves it

2005-11-25 16:04:54 +00:00

ScalarReplAggregates.cpp

Fix a miscompilation of 188.ammp with the new CFE. 188.ammp is accessing

2006-03-08 01:05:29 +00:00

SCCP.cpp

Implement some more interesting select sccp cases. This implements:

2006-02-08 02:38:11 +00:00

SimplifyCFG.cpp

…

TailDuplication.cpp

Make iostream #inclusion explicit

2006-01-22 23:32:06 +00:00

TailRecursionElimination.cpp

Implement Transforms/TailCallElim/return-undef.ll, a trivial case

2005-11-05 08:21:11 +00:00