Commit Graph

7 Commits

Author SHA1 Message Date
Arthur Eubanks 6699029b67 [NewPM][opt] Run the "default" AA pipeline by default
We tend to assume that the AA pipeline is by default the default AA
pipeline and it's confusing when it's empty instead.

PR48779

Initially reverted due to BasicAA running analyses in an unspecified
order (multiple function calls as parameters), fixed by fetching
analyses before the call to construct BasicAA.

Reviewed By: asbirlea

Differential Revision: https://reviews.llvm.org/D95117
2021-01-21 21:08:54 -08:00
Arthur Eubanks ba9b4ea4ee Revert "[NewPM][opt] Run the "default" AA pipeline by default"
This reverts commit be611431cd.

Other/new-pm-lto-defaults.ll failing
2021-01-21 20:16:34 -08:00
Arthur Eubanks be611431cd [NewPM][opt] Run the "default" AA pipeline by default
We tend to assume that the AA pipeline is by default the default AA
pipeline and it's confusing when it's empty instead.

PR48779

Reviewed By: asbirlea

Differential Revision: https://reviews.llvm.org/D95117
2021-01-21 19:46:38 -08:00
Juneyoung Lee 278aa65cc4 [IR] Let IRBuilder's CreateVectorSplat/CreateShuffleVector use poison as placeholder
This patch updates IRBuilder to create insertelement/shufflevector using poison as a placeholder.

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D93793
2020-12-30 04:21:04 +09:00
Bardia Mahjour a7e2c26939 [LV] Epilogue Vectorization with Optimal Control Flow (Recommit)
This is yet another attempt at providing support for epilogue
vectorization following discussions raised in RFC http://llvm.1065342.n5.nabble.com/llvm-dev-Proposal-RFC-Epilog-loop-vectorization-tt106322.html#none
and reviews D30247 and D88819.

Similar to D88819, this patch achieve epilogue vectorization by
executing a single vplan twice: once on the main loop and a second
time on the epilogue loop (using a different VF). However it's able
to handle more loops, and generates more optimal control flow for
cases where the trip count is too small to execute any code in vector
form.

Reviewed By: SjoerdMeijer

Differential Revision: https://reviews.llvm.org/D89566
2020-12-02 10:09:56 -05:00
Bardia Mahjour c94af03f7f Revert "[LV] Epilogue Vectorization with Optimal Control Flow"
This reverts commit 9c5504adce.
Reverting to investigate build failure in http://lab.llvm.org:8011/#/builders/98/builds/1461/steps/9
2020-12-01 12:50:36 -05:00
Bardia Mahjour 9c5504adce [LV] Epilogue Vectorization with Optimal Control Flow
This is yet another attempt at providing support for epilogue
vectorization following discussions raised in RFC http://llvm.1065342.n5.nabble.com/llvm-dev-Proposal-RFC-Epilog-loop-vectorization-tt106322.html#none
and reviews D30247 and D88819.

Similar to D88819, this patch achieve epilogue vectorization by
executing a single vplan twice: once on the main loop and a second
time on the epilogue loop (using a different VF). However it's able
to handle more loops, and generates more optimal control flow for
cases where the trip count is too small to execute any code in vector
form.

Reviewed By: SjoerdMeijer

Differential Revision: https://reviews.llvm.org/D89566
2020-12-01 12:04:29 -05:00