3 Commits

Author	SHA1	Message	Date
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