3 Commits

Author	SHA1	Message	Date
Bardia Mahjour	fbc2c5ae27	[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	b7eee47753	Revert "[LV] Epilogue Vectorization with Optimal Control Flow" ... This reverts commit 9c5504adceb544d9954ddb8ff3035a414f4b1423. 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	63b138b338	[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