Sanjoy Das d23e55c402 [IndVars] Preserve LCSSA in eliminateIdentitySCEV ...

Summary:
After r249211, SCEV can see through some LCSSA phis.  Add a
`replacementPreservesLCSSAForm` check before replacing uses of these phi
nodes with a simplified use of the induction variable to avoid breaking
LCSSA.

Fixes 25047.

Depends on D13460.

Reviewers: atrick, hfinkel

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D13461

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249575 91177308-0d34-0410-b5e6-96231b3b80d8

2015-10-07 17:38:31 +00:00

..

AddDiscriminators.cpp

IR: Give 'DI' prefix to debug info metadata

2015-04-29 16:38:44 +00:00

ASanStackFrameLayout.cpp

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

BasicBlockUtils.cpp

Convert a bunch of loops to foreach. NFC.

2015-08-06 20:22:46 +00:00

BreakCriticalEdges.cpp

Drive-by fixes for LandingPad -> EHPad

2015-08-04 08:21:40 +00:00

BuildLibCalls.cpp

Simplify IRBuilder::CreateCall* by using ArrayRef+initializer_list/braced init only

2015-05-18 22:13:54 +00:00

BypassSlowDivision.cpp

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

CloneFunction.cpp

Fix some comment typos.

2015-08-08 18:27:36 +00:00

CloneModule.cpp

[opaque pointer types] Switch a few cases of getElementType over, since I had them lying around anyway

2015-09-14 20:29:26 +00:00

CMakeLists.txt

TransformUtils: Introduce module splitter.

2015-08-21 02:48:20 +00:00

CmpInstAnalysis.cpp

[C++] Use 'nullptr'. Transforms edition.

2014-04-25 05:29:35 +00:00

CodeExtractor.cpp

[IR] Give catchret an optional 'return value' operand

2015-08-15 02:46:08 +00:00

CtorUtils.cpp

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

DemoteRegToStack.cpp

[WinEHPrepare] Add rudimentary support for the new EH instructions

2015-08-11 01:15:26 +00:00

FlattenCFG.cpp

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

GlobalStatus.cpp

[CallSite] Make construction from Value* (or Instruction*) explicit.

2015-04-10 14:50:08 +00:00

InlineFunction.cpp

Fix Clang-tidy modernize-use-nullptr warnings in source directories and generated files; other minor cleanups.

2015-10-06 23:24:35 +00:00

InstructionNamer.cpp

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

IntegerDivision.cpp

Simplify IRBuilder::CreateCall* by using ArrayRef+initializer_list/braced init only

2015-05-18 22:13:54 +00:00

LCSSA.cpp

[PM/AA] Rebuild LLVM's alias analysis infrastructure in a way compatible

2015-09-09 17:55:00 +00:00

LLVMBuild.txt

[PM/AA] Remove the last relics of the separate IPA library from LLVM,

2015-08-18 17:51:53 +00:00

Local.cpp

inariant.group handling in GVN

2015-10-02 22:12:22 +00:00

LoopSimplify.cpp

[PM/AA] Rebuild LLVM's alias analysis infrastructure in a way compatible

2015-09-09 17:55:00 +00:00

LoopUnroll.cpp

[IndVars] Don't break dominance in eliminateIdentitySCEV

2015-10-06 21:44:49 +00:00

LoopUnrollRuntime.cpp

Fix Clang-tidy modernize-use-nullptr warnings in source directories and generated files; other minor cleanups.

2015-10-06 23:24:35 +00:00

LoopUtils.cpp

[LoopUtils,LV] Propagate fast-math flags on generated FCmp instructions

2015-09-21 19:41:19 +00:00

LoopVersioning.cpp

[LVer] Fix FIXME: hide addPHINodes, NFC

2015-08-20 17:22:29 +00:00

LowerInvoke.cpp

[Modules] Fix potential ODR violations by sinking the DEBUG_TYPE

2014-04-22 02:55:47 +00:00

LowerSwitch.cpp

don't repeat function names in comments; NFC

2015-09-16 16:21:08 +00:00

Makefile

…

Mem2Reg.cpp

[PM] Split the AssumptionTracker immutable pass into two separate APIs:

2015-01-04 12:03:27 +00:00

MetaRenamer.cpp

Whoops, remove trailing whitespace.

2015-08-27 05:37:12 +00:00

ModuleUtils.cpp

[asan] Rename the ABI versioning symbol to '__asan_version_mismatch_check' instead of abusing '__asan_init'

2015-07-23 10:54:06 +00:00

PromoteMemoryToRegister.cpp

Fix mem2reg to correctly handle allocas only used in a single block

2015-07-22 10:29:29 +00:00

SimplifyCFG.cpp

inariant.group handling in GVN

2015-10-02 22:12:22 +00:00

SimplifyIndVar.cpp

[IndVars] Preserve LCSSA in eliminateIdentitySCEV

2015-10-07 17:38:31 +00:00

SimplifyInstructions.cpp

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

SimplifyLibCalls.cpp

[SimplifyLibCalls] Fix instruction misplacement in string/memory libcall optimization

2015-10-01 22:43:53 +00:00

SplitModule.cpp

TransformUtils: Introduce module splitter.

2015-08-21 02:48:20 +00:00

SSAUpdater.cpp

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

SymbolRewriter.cpp

Remove unnecessary includes

2015-08-08 00:41:53 +00:00

UnifyFunctionExitNodes.cpp

[LPM] Stop using the string based preservation API. It is an

2015-01-28 04:57:56 +00:00

Utils.cpp

Pass to emit DWARF path discriminators.

2014-03-03 20:06:11 +00:00

ValueMapper.cpp

[opaque pointer type]: Pass explicit pointee type when building a constant GEP.

2015-08-21 20:16:51 +00:00