Florian Hahn d4c070d801 [VectorCombine] Freeze index unless it is known to be non-poison. ...

If the index itself is already poison, the poison propagates through
instructions clamping the index to a valid range. This still causes
introducing a load of poison, as flagged by Alive2 and pointed out
at 575e2aff55.

This patch updates the code to freeze the index, unless it is proven to
not be poison.

Reviewed By: nlopes

Differential Revision: https://reviews.llvm.org/D103378

2021-06-01 10:40:57 +01:00

..

CMakeLists.txt

llvmbuildectomy - replace llvm-build by plain cmake

2020-11-13 10:35:24 +01:00

LoadStoreVectorizer.cpp

Change the context instruction for computeKnownBits in LoadStoreVectorizer pass

2021-05-12 15:29:29 -07:00

LoopVectorizationLegality.cpp

[LoopVectorize] Enable strict reductions when allowReordering() returns false

2021-05-26 13:59:12 +01:00

LoopVectorizationPlanner.h

[LV] Try to sink users recursively for first-order recurrences.

2021-05-31 19:55:33 +01:00

LoopVectorize.cpp

[LV] Try to sink users recursively for first-order recurrences.

2021-05-31 19:55:33 +01:00

SLPVectorizer.cpp

[SLP]Fix vectorization of insertelements with multiple uses.

2021-05-26 09:42:18 -07:00

VectorCombine.cpp

[VectorCombine] Freeze index unless it is known to be non-poison.

2021-06-01 10:40:57 +01:00

Vectorize.cpp

…

VPlan.cpp

[VPlan] Add mayReadOrWriteMemory & friends.

2021-05-24 13:11:32 +01:00

VPlan.h

[VPlan] Add mayReadOrWriteMemory & friends.

2021-05-24 13:11:32 +01:00

VPlanDominatorTree.h

Revert multiple patches based on "Introduce CfgTraits abstraction"

2020-10-27 20:33:30 +01:00

VPlanHCFGBuilder.cpp

[VPlan] Manage pairs of incoming (VPValue, VPBB) in VPWidenPHIRecipe.

2021-02-22 09:44:25 +00:00

VPlanHCFGBuilder.h

…

VPlanLoopInfo.h

…

VPlanPredicator.cpp

[llvm] Drop unnecessary make_range (NFC)

2021-01-09 09:25:00 -08:00

VPlanPredicator.h

…

VPlanSLP.cpp

[NFC][VPlan] Guard print routines with "#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)"

2021-03-19 10:50:12 -07:00

VPlanTransforms.cpp

[VPlan] Do not sink uniform recipes in sinkScalarOperands.

2021-05-27 14:07:48 +01:00

VPlanTransforms.h

[VPlan] Add first VPlan version of sinkScalarOperands.

2021-05-24 15:29:58 +01:00

VPlanValue.h

[VPlan] Add VPUserID to distinguish between recipes and others.

2021-05-18 09:17:28 +01:00

VPlanVerifier.cpp

…

VPlanVerifier.h

…

VPRecipeBuilder.h

[VPlan] Representing backedge def-use feeding reduction phis.

2021-05-04 16:33:22 +01:00