Chris Lattner 3bb4657488 Don't attempt to split subloops out of a loop with a huge number of backedges. ...

Not only will this take huge amounts of compile time, the resultant loop nests
won't be useful for optimization.  This reduces loopsimplify time on
Transforms/LoopSimplify/2006-08-11-LoopSimplifyLongTime.ll from ~32s to ~0.4s
with a debug build of llvm on a 2.7Ghz G5.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29647 91177308-0d34-0410-b5e6-96231b3b80d8

2006-08-12 05:25:00 +00:00

..

BasicBlockUtils.cpp

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BreakCriticalEdges.cpp

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CloneFunction.cpp

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CloneModule.cpp

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CloneTrace.cpp

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CodeExtractor.cpp

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DemoteRegToStack.cpp

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InlineFunction.cpp

silence warnings in a release build

2006-07-18 21:48:57 +00:00

LCSSA.cpp

Add special check to avoid isLoop call. Simple, but doesn't seem to speed

2006-08-02 00:16:47 +00:00

Local.cpp

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LoopSimplify.cpp

Don't attempt to split subloops out of a loop with a huge number of backedges.

2006-08-12 05:25:00 +00:00

LowerAllocations.cpp

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LowerInvoke.cpp

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LowerSelect.cpp

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LowerSwitch.cpp

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Makefile

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Mem2Reg.cpp

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PromoteMemoryToRegister.cpp

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SimplifyCFG.cpp

Fix PR867 (and maybe 868) and testcsae:

2006-08-03 21:40:24 +00:00

UnifyFunctionExitNodes.cpp

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ValueMapper.cpp

eliminate some ugly code, using ConstantExpr::getWithOperands instead.

2006-07-14 22:21:31 +00:00

ValueMapper.h

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