Andrew Trick 719339e40f LSR fix: Add isSimplifiedLoopNest to IVUsers analysis. ...

Only record IVUsers that are dominated by simplified loop
headers. Otherwise SCEVExpander will crash while looking for a
preheader.

I previously tried to work around this in LSR itself, but that was
insufficient. This way, LSR can continue to run if some uses are not
in simple loops, as long as we don't attempt to analyze those users.

Fixes <rdar://problem/11049788> Segmentation fault: 11 in LoopStrengthReduce

llvm-svn: 152892

2012-03-16 03:16:56 +00:00

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ADCE

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ArgumentPromotion

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BBVectorize

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BlockPlacement

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BranchFolding

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CodeExtractor

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CodeGenPrepare

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ConstantMerge

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ConstProp

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CorrelatedValuePropagation

Eliminate switch cases that can never match, for example removes all

2012-03-09 13:45:18 +00:00

DeadArgElim

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DeadStoreElimination

Reverted r152620 - DSE: Shorten memset when a later store overwrites the start of it. There were all sorts of buildbot issues

2012-02-28 05:06:24 +00:00

EarlyCSE

Fix regression from r151466: an we can't replace uses of an instruction reachable from the entry block with uses of an instruction not reachable from the entry block. PR12231.

2012-03-13 01:06:07 +00:00

FunctionAttrs

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GlobalDCE

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GlobalOpt

Teach globalopt how to evaluate an invoke with a non-void return type.

2012-03-13 18:01:37 +00:00

GVN

Nick pointed out on IRC that GVN's propagateEquality wasn't propagating

2012-03-04 13:25:19 +00:00

IndVarSimplify

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Inline

Extend the inline cost calculation to account for bonuses due to

2012-03-14 23:19:53 +00:00

InstCombine

In InstCombiner::visitOr, make sure we reverse the operand swap used for checking for or-of-xor operations after those checks; a later check expects that any constant will be in Op1. PR12234.

2012-03-16 00:52:42 +00:00

InstSimplify

Generalize the "trunc(ptrtoint(x)) - trunc(ptrtoint(y)) ->

2012-03-13 14:07:05 +00:00

Internalize

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IPConstantProp

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JumpThreading

enhance jump threading to preserve TBAA information when PRE'ing loads,

2012-03-13 18:07:41 +00:00

LCSSA

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LICM

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LoopDeletion

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LoopIdiom

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LoopRotate

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LoopSimplify

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LoopStrengthReduce

LSR fix: Add isSimplifiedLoopNest to IVUsers analysis.

2012-03-16 03:16:56 +00:00

LoopUnroll

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LoopUnswitch

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LowerAtomic

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LowerExpectIntrinsic

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LowerInvoke

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LowerSwitch

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Mem2Reg

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MemCpyOpt

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MergeFunc

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ObjCARC

Short term fix for pr12270 before we change dominates to handle unreachable

2012-03-15 15:52:59 +00:00

PhaseOrdering

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PruneEH

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Reassociate

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ScalarRepl

line endings

2012-03-15 20:24:29 +00:00

SCCP

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SimplifyCFG

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SimplifyLibCalls

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Sink

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StripSymbols

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TailCallElim

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TailDup

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