| commit | 23fd760add29042fd6f8fead0f6a2f32631d41aa | |
| author | Szabolcs Nagy <szabolcs.nagy@arm.com> | |
| Tue, 9 Feb 2021 17:56:02 +0000 (9 17:56 +0000) | ||
| committer | Szabolcs Nagy <szabolcs.nagy@arm.com> | |
| Fri, 26 Mar 2021 11:03:06 +0000 (26 11:03 +0000) | ||
| tree | a7b15b0d3d507153ba3f14ab14c4ca3d7d5438fd | treesnapshot (tar.gz zip) |
| parent | 383bc2402879080ed65b7f68789f5ebaf994f896 | commitdiff |
aarch64: Optimize __libc_mtag_tag_region
This is a target hook for memory tagging, the original was a naive
implementation. The optimized version relies on "dc gva" to tag 64
bytes at a time for large allocations and optimizes small cases without
adding too many branches. This was not benchmarked on real cpu, but
expected to be faster than the naive implementation.
This is a target hook for memory tagging, the original was a naive
implementation. The optimized version relies on "dc gva" to tag 64
bytes at a time for large allocations and optimizes small cases without
adding too many branches. This was not benchmarked on real cpu, but
expected to be faster than the naive implementation.
| sysdeps/aarch64/__mtag_tag_region.S | diffblobblamehistory |