Chris Lattner 95a959dc1a Teach instcombine to increase the alignment of memset/memcpy/memmove when ...

the pointer is known to come from either a global variable, alloca or
malloc.  This allows us to compile this:

  P = malloc(28);
  memset(P, 0, 28);

into explicit stores on PPC instead of a memset call.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26577 91177308-0d34-0410-b5e6-96231b3b80d8

2006-03-06 20:18:44 +00:00

..

ADCE.cpp

Make iostream #inclusion explicit

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

BasicBlockPlacement.cpp

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CondPropagate.cpp

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ConstantProp.cpp

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CorrelatedExprs.cpp

Improve compatibility with VC2005, patch by Morten Ofstad!

2006-01-26 20:41:32 +00:00

DCE.cpp

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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

Teach instcombine to increase the alignment of memset/memcpy/memmove when

2006-03-06 20:18:44 +00:00

LICM.cpp

Make iostream #inclusion explicit

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

LoopStrengthReduce.cpp

Use SCEVExpander::InsertCastOfTo instead of our own code. This reduces

2006-02-04 09:52:43 +00:00

LoopUnroll.cpp

Make iostream #inclusion explicit

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

LoopUnswitch.cpp

Fix Regression/Transforms/LoopUnswitch/2006-02-22-UnswitchCrash.ll, which

2006-02-22 23:55:00 +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

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Reassociate.cpp

Add factoring of multiplications, e.g. turning A*A+A*B into A*(A+B).

2006-03-04 09:31:13 +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 Regression/Transforms/ScalarRepl/2006-01-24-IllegalUnionPromoteCrash.ll

2006-01-24 19:36:27 +00:00

SCCP.cpp

Implement some more interesting select sccp cases. This implements:

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

SimplifyCFG.cpp

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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