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| author | Alan Wu <XrXr@users.noreply.github.com> | 2021-09-10 11:22:36 -0400 |
|---|---|---|
| committer | Alan Wu <XrXr@users.noreply.github.com> | 2021-10-20 18:19:40 -0400 |
| commit | cbb0271dd6256601aa6aea669ceac4f82fdb75fe (patch) | |
| tree | 5a0becaad690d4fcd5c85c840f79a2ca899b07c0 /yjit_codegen.h | |
| parent | 6e1f2519cc851961939c4de61613161de3caf998 (diff) | |
Deduplicate side exits
Send instructions currently generate the exact same side exit twice.
Cache the exit the first time we generate it. Also add a comment
explaining what side exits do.
Closes GH-117.
Diffstat (limited to 'yjit_codegen.h')
| -rw-r--r-- | yjit_codegen.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/yjit_codegen.h b/yjit_codegen.h index 66740a30f5..16c2211656 100644 --- a/yjit_codegen.h +++ b/yjit_codegen.h @@ -13,7 +13,7 @@ extern uint32_t yjit_codepage_frozen_bytes; typedef struct JITState { // Block version being compiled - block_t* block; + block_t *block; // Instruction sequence this is associated with const rb_iseq_t *iseq; @@ -27,9 +27,12 @@ typedef struct JITState // PC of the instruction being compiled VALUE *pc; + // Side exit to the instruction being compiled. See :side-exit:. + uint8_t *side_exit_for_pc; + // Execution context when compilation started // This allows us to peek at run-time values - rb_execution_context_t* ec; + rb_execution_context_t *ec; // Whether we need to record the code address at // the end of this bytecode instruction for global invalidation |