llvm-project

Commit Graph

Author	SHA1	Message	Date
David Green	8de7d8b2c2	[ARM] Recognize VIDUP from BUILDVECTORs of additions This adds a pattern to recognize VIDUP from BUILD_VECTOR of incrementing adds. This can come up from either geps or adds, and came up recently in D100550. We are just looking for a BUILD_VECTOR where each lane is an add of the first lane with N*i, where i is the lane and N is one of 1, 2, 4, or 8, supported by the VIDUP instruction. Differential Revision: https://reviews.llvm.org/D101263	2021-04-27 19:33:24 +01:00
David Green	268f1963af	[ARM] Additional VIDUP tests. NFC	2021-04-27 19:33:24 +01:00

Author

SHA1

Message

Date

David Green

8de7d8b2c2

[ARM] Recognize VIDUP from BUILDVECTORs of additions

This adds a pattern to recognize VIDUP from BUILD_VECTOR of incrementing
adds. This can come up from either geps or adds, and came up recently in
D100550. We are just looking for a BUILD_VECTOR where each lane is an
add of the first lane with N*i, where i is the lane and N is one of 1,
2, 4, or 8, supported by the VIDUP instruction.

Differential Revision: https://reviews.llvm.org/D101263

2021-04-27 19:33:24 +01:00

David Green

268f1963af

[ARM] Additional VIDUP tests. NFC

2021-04-27 19:33:24 +01:00

2 Commits