Chad Rosier 451a188a25 [LV] Use Demanded Bits and ValueTracking for reduction type-shrinking ...

The type-shrinking logic in reduction detection, although narrow in scope, is
also rather ad-hoc, which has led to bugs (e.g., PR35734). This patch modifies
the approach to rely on the demanded bits and value tracking analyses, if
available. We currently perform type-shrinking separately for reductions and
other instructions in the loop. Long-term, we should probably think about
computing minimal bit widths in a more complete way for the loops we want to
vectorize.

PR35734
Differential Revision: https://reviews.llvm.org/D42309

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@324195 91177308-0d34-0410-b5e6-96231b3b80d8

2018-02-04 15:42:24 +00:00

..

CMakeLists.txt

[LV] Fix PR34248 - recommit D32871 after revert r311304

2017-08-27 12:55:46 +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

Add explanatory comment to LoadStoreVectorizer.

2018-01-10 03:02:12 +00:00

LoopVectorizationPlanner.h

Add missing includes

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

LoopVectorize.cpp

[LV] Use Demanded Bits and ValueTracking for reduction type-shrinking

2018-02-04 15:42:24 +00:00

SLPVectorizer.cpp

[SLP] Fix for PR32086: Count InsertElementInstr of the same elements as shuffle.

2018-01-29 16:08:52 +00:00

Vectorize.cpp

Remove redundant includes from lib/Transforms.

2017-12-13 21:31:01 +00:00

VPlan.cpp

[LV] NFC patch for moving VP*Recipe class definitions from LoopVectorize.cpp to VPlan.h

2017-12-16 01:12:50 +00:00

VPlan.h

[LV][VPlan] NFC patch to move LoopVectorizationPlanner class out of LoopVectorize.cpp

2018-01-07 16:02:58 +00:00

VPlanValue.h

[LV] Model masking in VPlan, introducing VPInstructions

2017-11-20 12:01:47 +00:00