Sanjoy Das 7ebbc8de2f Fix bug 22641 ...

The bug was a result of getPreStartForExtend interpreting nsw/nuw
flags on an add recurrence more strongly than is legal.  {S,+,X}<nsw>
implies S+X is nsw only if the backedge of the loop is taken at least
once.

Differential Revision: http://reviews.llvm.org/D7808



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230275 91177308-0d34-0410-b5e6-96231b3b80d8

2015-02-23 22:55:13 +00:00

..

AssumptionCache

[PM] Actually add the new pass manager support for the assumption cache.

2015-01-22 21:53:09 +00:00

BasicAA

[BasicAA] Try to disambiguate GEPs through arrays of structs into

2015-02-07 17:04:29 +00:00

BlockFrequencyInfo

IR: Make metadata typeless in assembly

2014-12-15 19:07:53 +00:00

BranchProbabilityInfo

IR: Make metadata typeless in assembly

2014-12-15 19:07:53 +00:00

CallGraph

…

CFLAliasAnalysis

Fixed a bug where CFLAA would crash the compiler.

2015-02-12 03:07:07 +00:00

CostModel

[x86,sdag] Two interrelated changes to the x86 and sdag code.

2015-02-19 10:36:19 +00:00

Delinearization

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DependenceAnalysis

[DependenceAnalysis] Allow subscripts of different types

2014-11-16 16:52:44 +00:00

Dominators

[PM] Port domtree to the new pass manager (at last).

2015-01-14 10:19:28 +00:00

GlobalsModRef

Move the complex address expression out of DIVariable and into an extra

2014-10-01 18:55:02 +00:00

LazyCallGraph

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Lint

Adding support for llvm.eh.begincatch and llvm.eh.endcatch intrinsics and beginning the documentation of native Windows exception handling.

2015-02-10 19:52:43 +00:00

LoopAccessAnalysis

[LoopAccesses] Add -analyze support

2015-02-19 19:15:19 +00:00

LoopInfo

[PM] Port LoopInfo to the new pass manager, adding both a LoopAnalysis

2015-01-20 10:58:50 +00:00

MemoryDependenceAnalysis

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PostDominators

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RegionInfo

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ScalarEvolution

Fix bug 22641

2015-02-23 22:55:13 +00:00

ScopedNoAliasAA

IR: Make metadata typeless in assembly

2014-12-15 19:07:53 +00:00

TypeBasedAliasAnalysis

Re-reapply r221924: "[GVN] Perform Scalar PRE on gep indices that feed loads before

2015-01-09 19:19:56 +00:00

ValueTracking

MemDerefPrinter: Require DataLayoutPass for higher accuracy

2015-02-09 21:50:03 +00:00