Nick Lewycky 5dcc41f5b3 Fix overzealous optimization. Thanks to Duncan Sands for pointing out my error! ...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53393 91177308-0d34-0410-b5e6-96231b3b80d8

2008-07-10 05:51:40 +00:00

..

ADCE.cpp

Remove the ability for ADCE to remove unreachable blocks in loop nests, because, as Eli pointed out, SimplifyCFG already does this.

2008-07-03 17:21:41 +00:00

BasicBlockPlacement.cpp

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CodeGenPrepare.cpp

Remove comparison methods for MVT. The main cause

2008-06-08 20:54:56 +00:00

CondPropagate.cpp

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ConstantProp.cpp

Use Instruction::eraseFromParent().

2008-06-21 22:08:46 +00:00

DCE.cpp

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DeadStoreElimination.cpp

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GCSE.cpp

Use Instruction::eraseFromParent().

2008-06-21 22:08:46 +00:00

GVN.cpp

Use information already present in the ValueTable to fast-fail when we know there won't be a value number match. This speeds up GVN on a case where there are very few redundancies by ~25%.

2008-07-03 17:44:33 +00:00

GVNPRE.cpp

Update comments and documentation to reflect that GCSE and ValueNumbering are

2008-06-05 07:55:49 +00:00

IndVarSimplify.cpp

Use Loop::block_iterator.

2008-06-22 20:18:58 +00:00

InstructionCombining.cpp

Fix overzealous optimization. Thanks to Duncan Sands for pointing out my error!

2008-07-10 05:51:40 +00:00

JumpThreading.cpp

Fix some constructs that gcc-4.4 warns about.

2008-05-27 11:50:51 +00:00

LICM.cpp

Use Loop::block_iterator.

2008-06-22 20:18:58 +00:00

LoopDeletion.cpp

Use use_empty() instead of getNumUses(), avoiding a use list traversal.

2008-06-23 23:23:49 +00:00

LoopIndexSplit.cpp

If loop induction variable's start value is less then its exit value then do not split the loop.

2008-07-09 00:12:01 +00:00

LoopRotation.cpp

Avoid using BasicBlock::getInstList directly in a few places.

2008-06-19 17:37:25 +00:00

LoopStrengthReduce.cpp

Fix two serious LSR bugs.

2008-07-07 19:51:32 +00:00

LoopUnroll.cpp

Preserve dom info.

2008-07-03 07:04:22 +00:00

LoopUnswitch.cpp

Do not try to update dominator info while manipulating CFG. This code does not handle all cases and keeps invalid dom info around some cases, which misleads other passes down stream.

2008-07-03 17:37:52 +00:00

Makefile

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MemCpyOptimizer.cpp

Fix two issues that Eli Friedman pointed out, where would misoptimized code like:

2008-06-01 22:26:26 +00:00

PredicateSimplifier.cpp

InequalityGraph::node() can create new nodes, invalidating iterators across

2008-05-27 00:59:05 +00:00

Reassociate.cpp

API change for {BinaryOperator|CmpInst|CastInst}::create*() --> Create. Legacy interfaces will be in place for some time. (Merge from use-diet branch.)

2008-05-16 19:29:10 +00:00

Reg2Mem.cpp

API change for {BinaryOperator|CmpInst|CastInst}::create*() --> Create. Legacy interfaces will be in place for some time. (Merge from use-diet branch.)

2008-05-16 19:29:10 +00:00

Scalar.cpp

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ScalarReplAggregates.cpp

minor tidying of comments.

2008-06-23 17:11:23 +00:00

SCCP.cpp

Tidy up some commments and use the getAggregateOperand and

2008-06-20 16:41:17 +00:00

SimplifyCFGPass.cpp

rename SimplifyCFG.cpp -> SimplifyCFGPass.cpp

2008-05-14 20:38:44 +00:00

SimplifyLibCalls.cpp

- Re-apply 52748 and friends with fix. GetConstantStringInfo() returns an empty string for ConstantAggregateZero case which surprises selectiondag.

2008-06-30 07:31:25 +00:00

TailDuplication.cpp

Revert 52223.

2008-06-12 20:55:39 +00:00

TailRecursionElimination.cpp

Fix a case where tailcallelim wouldn't set the changed bit when it made a change.

2008-06-14 00:49:48 +00:00