Chris Lattner 41dc0fcb68 Teach masked value is zero about add and sub, and use MVIZ to ...

simplify things like (X & 4) >> 1 == 2  --> (X & 4) == 4.

since it is obvious that the shift doesn't remove any bits.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48631 91177308-0d34-0410-b5e6-96231b3b80d8

2008-03-21 05:19:58 +00:00

..

ADCE.cpp

Remove attribution from file headers, per discussion on llvmdev.

2007-12-29 20:36:04 +00:00

BasicBlockPlacement.cpp

Remove attribution from file headers, per discussion on llvmdev.

2007-12-29 20:36:04 +00:00

CodeGenPrepare.cpp

Remove dead options.

2008-03-19 22:02:26 +00:00

CondPropagate.cpp

Remove attribution from file headers, per discussion on llvmdev.

2007-12-29 20:36:04 +00:00

ConstantProp.cpp

Remove attribution from file headers, per discussion on llvmdev.

2007-12-29 20:36:04 +00:00

DCE.cpp

Remove attribution from file headers, per discussion on llvmdev.

2007-12-29 20:36:04 +00:00

DeadStoreElimination.cpp

Be more precise when eliminating pointers bue to memcpy's. This allows more

2008-02-04 04:53:00 +00:00

GCSE.cpp

Remove attribution from file headers, per discussion on llvmdev.

2007-12-29 20:36:04 +00:00

GVN.cpp

Fix a bug in GVN that Duncan noticed, where we potentially need to insert a

2008-03-13 22:07:10 +00:00

GVNPRE.cpp

Make Transforms to be 4.3 warnings-clean

2008-02-20 11:26:25 +00:00

IndVarSimplify.cpp

Remove attribution from file headers, per discussion on llvmdev.

2007-12-29 20:36:04 +00:00

InstructionCombining.cpp

Teach masked value is zero about add and sub, and use MVIZ to

2008-03-21 05:19:58 +00:00

LICM.cpp

Use empty() instead of comparing size() with zero.

2008-01-29 13:02:09 +00:00

LoopIndexSplit.cpp

If loop header is also loop exiting block then OrigPN is incoming value for B loop header.

2008-02-14 23:18:47 +00:00

LoopRotation.cpp

Fix PR2028

2008-02-15 01:24:49 +00:00

LoopStrengthReduce.cpp

Remove dead options.

2008-03-19 22:02:26 +00:00

LoopUnroll.cpp

Add comment.

2008-03-19 23:05:52 +00:00

LoopUnswitch.cpp

Update the block cloner which fixes bugpoint on code using unwind_to (phew!)

2008-03-09 05:24:34 +00:00

Makefile

remove attribution from lib Makefiles.

2007-12-29 20:09:26 +00:00

PredicateSimplifier.cpp

De-tabify.

2008-02-26 10:53:30 +00:00

Reassociate.cpp

simplify some code, BreakUpSubtract always returns nonnull now.

2008-02-18 02:18:25 +00:00

Reg2Mem.cpp

Remove attribution from file headers, per discussion on llvmdev.

2007-12-29 20:36:04 +00:00

Scalar.cpp

C and Objective Caml bindings for mem2reg and reg2mem.

2008-03-20 17:16:03 +00:00

ScalarReplAggregates.cpp

fix a bug Anders ran into where scalarrepl would crash when promoting

2008-02-29 07:12:06 +00:00

SCCP.cpp

Add TODO reminder.

2008-03-11 17:32:05 +00:00

SimplifyCFG.cpp

simplify code, no functionality change.

2008-02-14 07:39:01 +00:00

TailDuplication.cpp

Remove attribution from file headers, per discussion on llvmdev.

2007-12-29 20:36:04 +00:00

TailRecursionElimination.cpp

Become multiple return value aware.

2008-03-11 17:33:32 +00:00