llvm-project

Author SHA1 Message Date

Author	SHA1	Message	Date
Fangrui Song	5c29ffda90	Revert "[Driver][test] Replace ^//$ with empty string" This reverts commit `4817b7729a`. It caused some `^/\n` and had some objection about its readability improvement.	2022-06-24 13:52:27 -07:00
Fangrui Song	4817b7729a	[Driver][test] Replace ^//$ with empty string The convention does not add //\n. Having all RUN/CHECK lines separated by //\n makes editor movement difficult (e.g. { } in Vim).	2022-06-24 11:25:03 -07:00
Archibald Elliott	3a24df992c	[ARM] Pass for Cortex-A57 and Cortex-A72 Fused AES Erratum This adds a late Machine Pass to work around a Cortex CPU Erratum affecting Cortex-A57 and Cortex-A72: - Cortex-A57 Erratum 1742098 - Cortex-A72 Erratum 1655431 The pass inserts instructions to make the inputs to the fused AES instruction pairs no longer trigger the erratum. Here the pass errs on the side of caution, inserting the instructions wherever we cannot prove that the inputs came from a safe instruction. The pass is used: - for Cortex-A57 and Cortex-A72, - for "generic" cores (which are used when using `-march=`), - when the user specifies `-mfix-cortex-a57-aes-1742098` or `mfix-cortex-a72-aes-1655431` in the command-line arguments to clang. Reviewed By: dmgreen, simon_tatham Differential Revision: https://reviews.llvm.org/D119720	2022-05-13 10:47:33 +01:00

Fangrui Song

5c29ffda90

Revert "[Driver][test] Replace ^//$ with empty string"

This reverts commit 4817b7729a.

It caused some `^/\n` and had some objection about its readability improvement.

2022-06-24 13:52:27 -07:00

Fangrui Song

4817b7729a

[Driver][test] Replace ^//$ with empty string

The convention does not add //\n. Having all RUN/CHECK lines separated by //\n
makes editor movement difficult (e.g. { } in Vim).

2022-06-24 11:25:03 -07:00

Archibald Elliott

3a24df992c

[ARM] Pass for Cortex-A57 and Cortex-A72 Fused AES Erratum

This adds a late Machine Pass to work around a Cortex CPU Erratum
affecting Cortex-A57 and Cortex-A72:
- Cortex-A57 Erratum 1742098
- Cortex-A72 Erratum 1655431

The pass inserts instructions to make the inputs to the fused AES
instruction pairs no longer trigger the erratum. Here the pass errs on
the side of caution, inserting the instructions wherever we cannot prove
that the inputs came from a safe instruction.

The pass is used:
- for Cortex-A57 and Cortex-A72,
- for "generic" cores (which are used when using `-march=`),
- when the user specifies `-mfix-cortex-a57-aes-1742098` or
  `mfix-cortex-a72-aes-1655431` in the command-line arguments to clang.

Reviewed By: dmgreen, simon_tatham

Differential Revision: https://reviews.llvm.org/D119720

2022-05-13 10:47:33 +01:00

3 Commits