llvm-project

Commit Graph

Author	SHA1	Message	Date
Sander de Smalen	b1ff20fd35	[LV] Enable scalable vectorization by default for SVE cores. The availability of SVE should be sufficient to enable scalable auto-vectorization. This patch adds a new TTI interface to query the target what style of vectorization it wants when scalable vectors are available. For other targets than AArch64, this currently defaults to 'FixedWidthOnly'. Differential Revision: https://reviews.llvm.org/D115651	2021-12-20 16:23:29 +00:00
Kerry McLaughlin	49d73130ca	[LV] Avoid scalable vectorization for loops containing alloca This patch returns an Invalid cost from getInstructionCost() for alloca instructions if the VF is scalable, as otherwise loops which contain these instructions will crash when attempting to scalarize the alloca. Reviewed By: sdesmalen Differential Revision: https://reviews.llvm.org/D105824	2021-07-16 11:47:13 +01:00

Author

SHA1

Message

Date

Sander de Smalen

b1ff20fd35

[LV] Enable scalable vectorization by default for SVE cores.

The availability of SVE should be sufficient to enable scalable
auto-vectorization.

This patch adds a new TTI interface to query the target what style of
vectorization it wants when scalable vectors are available. For other
targets than AArch64, this currently defaults to 'FixedWidthOnly'.

Differential Revision: https://reviews.llvm.org/D115651

2021-12-20 16:23:29 +00:00

Kerry McLaughlin

49d73130ca

[LV] Avoid scalable vectorization for loops containing alloca

This patch returns an Invalid cost from getInstructionCost() for alloca
instructions if the VF is scalable, as otherwise loops which contain
these instructions will crash when attempting to scalarize the alloca.

Reviewed By: sdesmalen

Differential Revision: https://reviews.llvm.org/D105824

2021-07-16 11:47:13 +01:00

2 Commits