llvm/lib/Transforms/Vectorize at 879e2ef2a6771a2f8a6285977142be5871de265d - llvm

RPCS3/llvm

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T

Dorit Nuzman c7a8ddb849 [IAI,LV] Avoid creating a scalar epilogue due to gaps in interleave-groups when

optimizing for size

LV is careful to respect -Os and not to create a scalar epilog in all cases
(runtime tests, trip-counts that require a remainder loop) except for peeling
due to gaps in interleave-groups. This patch fixes that; -Os will now have us
invalidate such interleave-groups and vectorize without an epilog.

The patch also removes a related FIXME comment that is now obsolete, and was
also inaccurate:
"FIXME: return None if loop requiresScalarEpilog(<MaxVF>), or look for a smaller
MaxVF that does not require a scalar epilog."
(requiresScalarEpilog() has nothing to do with VF).

Reviewers: Ayal, hsaito, dcaballe, fhahn

Reviewed By: Ayal

Differential Revision: https://reviews.llvm.org/D53420



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@344883 91177308-0d34-0410-b5e6-96231b3b80d8

2018-10-22 06:17:09 +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