Alexey Bataev 3aadace193 [SLP] Fix for PR6246: vectorization for scalar ops on vector elements. ...

When trying to vectorize trees that start at insertelement instructions
function tryToVectorizeList() uses vectorization factor calculated as
MinVecRegSize/ScalarTypeSize. But sometimes it does not work as tree
cost for this fixed vectorization factor is too high.
Patch tries to improve the situation. It tries different vectorization
factors from max(PowerOf2Floor(NumberOfVectorizedValues),
MinVecRegSize/ScalarTypeSize) to MinVecRegSize/ScalarTypeSize and tries
to choose the best one.

Differential Revision: https://reviews.llvm.org/D27215

llvm-svn: 289043

2016-12-08 11:57:51 +00:00

..

AArch64

[SLP] Avoid signed integer overflow

2016-08-23 20:48:50 +00:00

AMDGPU

[SLPVectorizer] Try different vectorization factors for store chains

2015-07-08 23:40:55 +00:00

ARM

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

PowerPC

[SLP] Pass in correct alignment when query memory access cost

2016-05-31 20:41:19 +00:00

X86

[SLP] Fix for PR6246: vectorization for scalar ops on vector elements.

2016-12-08 11:57:51 +00:00

XCore

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00