llvm-project

Commit Graph

Author	SHA1	Message	Date
Florian Hahn	1ed7f8ede5	[LAA] Support pointer phis in loop by analyzing each incoming pointer. SCEV does not look through non-header PHIs inside the loop. Such phis can be analyzed by adding separate accesses for each incoming pointer value. This results in 2 more loops vectorized in SPEC2000/186.crafty and avoids regressions when sinking instructions before vectorizing. Reviewed By: Meinersbur Differential Revision: https://reviews.llvm.org/D101286	2021-04-28 20:19:40 +01:00
Florian Hahn	a950f66de2	[LV,LAA] Add test cases with pointer phis in loops. Pre-commits tests for D101286.	2021-04-27 13:49:32 +01:00

Author

SHA1

Message

Date

Florian Hahn

1ed7f8ede5

[LAA] Support pointer phis in loop by analyzing each incoming pointer.

SCEV does not look through non-header PHIs inside the loop. Such phis
can be analyzed by adding separate accesses for each incoming pointer
value.

This results in 2 more loops vectorized in SPEC2000/186.crafty and
avoids regressions when sinking instructions before vectorizing.

Reviewed By: Meinersbur

Differential Revision: https://reviews.llvm.org/D101286

2021-04-28 20:19:40 +01:00

Florian Hahn

a950f66de2

[LV,LAA] Add test cases with pointer phis in loops.

Pre-commits tests for D101286.

2021-04-27 13:49:32 +01:00

2 Commits