Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

x64: Implement some minor optimizations related to SIMD lowerings #8839

Merged
merged 3 commits into from
Jun 19, 2024
Merged

x64: Implement some minor optimizations related to SIMD lowerings #8839

merged 3 commits into from
Jun 19, 2024

Commits on Jun 19, 2024

  1. Add tests for patterns I'm about to optimize

    @alexcrichton
    alexcrichton committed Jun 19, 2024
    Configuration menu
    Copy the full SHA
    a0ac271 View commit details
    Browse the repository at this point in the history

  2. x64: Optimize vector compare-and-branch 

    This commit implements lowering optimizations for the `vall_true` and
`vany_true` CLIF instructions when combined with `brif`. This is in the
same manner as `icmp` and `fcmp` combined with `brif` where the result
of the comparison is never materialized into a general purpose register
which helps lower register pressure and remove some instructions.
    @alexcrichton
    alexcrichton committed Jun 19, 2024
    Configuration menu
    Copy the full SHA
    c1bad76 View commit details
    Browse the repository at this point in the history

  3. x64: Optimize vconst with an all-ones pattern 

    This has a single-instruction lowering which doesn't load from memory so
it's probably cheaper than loading all-ones from memory.
    @alexcrichton
    alexcrichton committed Jun 19, 2024
    Configuration menu
    Copy the full SHA
    3eb0d53 View commit details
    Browse the repository at this point in the history