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| author | Jemma Issroff <jemmaissroff@gmail.com> | 2022-12-06 14:52:11 -0500 |
|---|---|---|
| committer | Aaron Patterson <aaron.patterson@gmail.com> | 2022-12-06 13:43:42 -0800 |
| commit | 40a9964b893fee5680b455d0e905155be3360685 (patch) | |
| tree | 69b6fbc7355cbef1cf311d50fbc496773b94bda7 /yjit | |
| parent | 64cdf8bae7cd85bc2911b39074d5710616c7ec73 (diff) | |
| download | ruby-40a9964b893fee5680b455d0e905155be3360685.tar.gz | |
Set max_iv_count (used for object shapes) based on inline caches
With this change, we're storing the iv name on an inline cache on
setinstancevariable instructions. This allows us to check the inline
cache to count instance variables set in initialize and give us an
estimate of iv capacity for an object.
For the purpose of estimating the number of instance variables required
for an object, we're assuming that all initialize methods will call
`super`.
This change allows us to estimate the number of instance variables
required without disassembling instruction sequences.
Co-Authored-By: Aaron Patterson <tenderlove@ruby-lang.org>
Diffstat (limited to 'yjit')
| -rw-r--r-- | yjit/src/cruby_bindings.inc.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/yjit/src/cruby_bindings.inc.rs b/yjit/src/cruby_bindings.inc.rs index 470b6d0a5b..1555196a06 100644 --- a/yjit/src/cruby_bindings.inc.rs +++ b/yjit/src/cruby_bindings.inc.rs @@ -853,6 +853,7 @@ pub struct iseq_inline_constant_cache { #[derive(Debug, Copy, Clone)] pub struct iseq_inline_iv_cache_entry { pub value: usize, + pub iv_set_name: ID, } #[repr(C)] #[derive(Debug, Copy, Clone)] |