Ayal Zaks 6d0de65682 [LV] Avoid vectorizing loops under opt for size that involve SCEV checks ...

Fix PR39417, PR39497

The loop vectorizer may generate runtime SCEV checks for overflow and stride==1
cases, leading to execution of original scalar loop. The latter is forbidden
when optimizing for size. An assert introduced in r344743 triggered the above
PR's showing it does happen. This patch fixes this behavior by preventing
vectorization in such cases.

Differential Revision: https://reviews.llvm.org/D53612


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@345959 91177308-0d34-0410-b5e6-96231b3b80d8

2018-11-02 09:16:12 +00:00

..

CMakeLists.txt

[VPlan] Add VPInstruction to VPRecipe transformation.

2018-06-18 18:28:49 +00:00

LLVMBuild.txt

Update libdeps since TLI was moved from Target to Analysis in r226078.

2015-01-15 05:21:00 +00:00

LoadStoreVectorizer.cpp

LSV: Fix adjust alloca alignment trick for AMDGPU

2018-09-18 02:05:44 +00:00

LoopVectorizationLegality.cpp

[LV] Fold tail by masking to vectorize loops of arbitrary trip count under opt for size

2018-10-18 15:03:15 +00:00

LoopVectorizationPlanner.h

[VPlan] Move recipe construction to VPRecipeBuilder.

2018-06-08 17:30:45 +00:00

LoopVectorize.cpp

[LV] Avoid vectorizing loops under opt for size that involve SCEV checks

2018-11-02 09:16:12 +00:00

SLPVectorizer.cpp

[SLPVectorizer] Add basic support for mul/and/or/xor horizontal reductions

2018-10-23 15:13:09 +00:00

Vectorize.cpp

[LLVM-C] [OCaml] Remove LLVMAddBBVectorizePass

2018-05-28 16:58:10 +00:00

VPlan.cpp

[LV] Fold tail by masking to vectorize loops of arbitrary trip count under opt for size

2018-10-18 15:03:15 +00:00

VPlan.h

[LV] Fold tail by masking to vectorize loops of arbitrary trip count under opt for size

2018-10-18 15:03:15 +00:00

VPlanDominatorTree.h

[VPlan] Introduce VPlan-based dominator analysis.

2018-07-30 21:33:31 +00:00

VPlanHCFGBuilder.cpp

[TI removal] Make variables declared as TerminatorInst and initialized

2018-10-15 10:04:59 +00:00

VPlanHCFGBuilder.h

[VPlan] Introduce VPlan-based dominator analysis.

2018-07-30 21:33:31 +00:00

VPlanHCFGTransforms.cpp

Fix for the buildbot failure http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/23635

2018-09-14 02:02:57 +00:00

VPlanHCFGTransforms.h

[VPlan] Add VPInstruction to VPRecipe transformation.

2018-06-18 18:28:49 +00:00

VPlanLoopInfo.h

[VPlan] Introduce VPLoopInfo analysis.

2018-07-31 01:57:29 +00:00

VPlanValue.h

[VPlan] Implement initial vector code generation support for simple outer loops.

2018-09-14 00:36:00 +00:00

VPlanVerifier.cpp

[VPlan][LV] Introduce condition bit in VPBlockBase

2018-07-09 15:57:09 +00:00

VPlanVerifier.h

[VPlan] Reland r332654 and silence unused func warning

2018-05-21 18:14:23 +00:00

VPRecipeBuilder.h

recommit 344472 after fixing build failure on ARM and PPC.

2018-10-14 08:50:06 +00:00