Benjamin Kramer 9822b869fc InstCombine: Add a few missing combines for ANDs and ORs of sign bit tests. ...

On x86 we now compile "if (a < 0 && b < 0)" into
	testl	%edi, %esi
	js	IF.THEN

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128496 91177308-0d34-0410-b5e6-96231b3b80d8

2011-03-29 22:06:41 +00:00

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ADCE

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ArgumentPromotion

fix PR8932, a case where arg promotion could infinitely promote.

2011-01-16 08:09:24 +00:00

BlockPlacement

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BranchFolding

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CodeExtractor

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CodeGenPrepare

Roll r127459 back in:

2011-03-11 21:52:04 +00:00

ConstantMerge

Don't merge two constants if we care about the address of both.

2011-01-16 17:05:09 +00:00

ConstProp

Constant folding support for calls to umul.with.overflow(), basically identical to the smul.with.overflow() code.

2011-03-27 14:26:13 +00:00

CorrelatedValuePropagation

Test for lazy value info's ability to prove the absense of NULLs in pointers.

2011-01-16 21:57:20 +00:00

DeadArgElim

Add an obvious missing safety check to DAE::RemoveDeadArgumentsFromCallers.

2011-03-01 00:33:47 +00:00

DeadStoreElimination

PR9561: A store with a negative offset (via GEP) could erroniously say that it

2011-03-26 01:20:37 +00:00

EarlyCSE

Duncan deftly points out that readnone functions aren't

2011-01-03 23:38:13 +00:00

FunctionAttrs

Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis

2010-11-10 01:02:18 +00:00

GlobalDCE

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GlobalOpt

Add an optimization to GlobalOpt that eliminates calls to __cxa_atexit, if the function passed is empty.

2011-03-20 17:59:11 +00:00

GVN

Give GVN back the ability to perform simple conditional propagation on conditional branch values.

2010-12-21 23:54:34 +00:00

IndVarSimplify

Avoid creating canonical induction variables for non-native types.

2011-03-18 16:50:32 +00:00

Inline

relax testcase a bit.

2011-01-14 07:46:33 +00:00

InstCombine

InstCombine: Add a few missing combines for ANDs and ORs of sign bit tests.

2011-03-29 22:06:41 +00:00

InstSimplify

Teach ComputeMaskedBits about sub nsw.

2011-03-12 17:18:11 +00:00

Internalize

Add test for r127138.

2011-03-07 21:28:14 +00:00

IPConstantProp

more test cleanup

2010-09-02 22:38:56 +00:00

JumpThreading

Fix PR9331. Simplified version of a patch by Jakub Staszak.

2011-03-08 12:39:03 +00:00

LCSSA

Do not add PHIs with no users when creating LCSSA form. Patch by Andrew Clinton.

2011-03-15 07:41:25 +00:00

LICM

While sinking an instruction, do not lose llvm.dbg.value intrinsic.

2011-03-08 03:06:19 +00:00

LoopDeletion

Make LoopDeletion work on loops with multiple edges, as long as the incoming

2011-02-22 22:25:39 +00:00

LoopIdiom

Preserve line no. info.

2011-03-07 22:43:45 +00:00

LoopRotate

Do not hoist @llvm.dbg.value. Here, @llvm.dbg.value is "referring" a value that is modified inside loop.

2011-02-14 23:03:23 +00:00

LoopSimplify

Avoid creating canonical induction variables for non-native types.

2011-03-18 16:50:32 +00:00

LoopStrengthReduce

Avoid creating canonical induction variables for non-native types.

2011-03-18 16:50:32 +00:00

LoopUnroll

add a testcase for r125827

2011-02-18 05:05:01 +00:00

LoopUnswitch

Factor code for testing whether replacing one value with another

2010-11-18 19:59:41 +00:00

LowerAtomic

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LowerInvoke

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LowerSetJmp

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LowerSwitch

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Mem2Reg

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MemCpyOpt

Actually check memcpy lengths, instead of just commenting about

2011-01-21 22:07:57 +00:00

MergeFunc

When removing a function from the function set and adding it to deferred, we

2011-02-09 06:32:02 +00:00

PruneEH

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Reassociate

Fix reassociate to postpone certain instruction deletions until

2011-03-10 19:51:54 +00:00

ScalarRepl

Do some simple copy propagation through integer loads and stores when promoting

2011-03-29 05:19:52 +00:00

SCCP

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SimplifyCFG

PR9450: Make switch optimization in SimplifyCFG not dependent on the ordering

2011-03-15 02:23:35 +00:00

SimplifyLibCalls

Preserve line number information while simplifying libcalls.

2011-03-09 21:27:52 +00:00

Sink

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

SRETPromotion

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StripSymbols

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TailCallElim

Add a test for TCE return duplication.

2011-01-29 04:53:35 +00:00

TailDup

The output of opt -stats must be sent to stderr. Patch by NAKAMURA Takumi!

2010-09-01 18:32:56 +00:00