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ZJIT: Break out patchpoint exit reasons (#14858)

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We have a lot of patchpoint exits on some applications and this helps
pin down why.
This commit is contained in:
Max Bernstein 2025-10-16 15:16:47 -04:00 committed by GitHub
parent 190a3cd475
commit 037b6e24ea
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GPG Key ID: B5690EEEBB952194
Notes: git 2025-10-16 19:17:16 +00:00 
Merged-By: tekknolagi <donotemailthisaddress@bernsteinbear.com>
1 changed files with 22 additions and 2 deletions
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24
zjit/src/stats.rs
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@ -141,7 +141,13 @@ make_counters! {
exit_guard_type_not_failure,
exit_guard_bit_equals_failure,
exit_guard_shape_failure,
exit_patchpoint,
exit_patchpoint_bop_redefined,
exit_patchpoint_method_redefined,
exit_patchpoint_stable_constant_names,
exit_patchpoint_no_tracepoint,
exit_patchpoint_no_ep_escape,
exit_patchpoint_single_ractor_mode,
exit_patchpoint_no_singleton_class,
exit_callee_side_exit,
exit_obj_to_string_fallback,
exit_interrupt,
@ -312,6 +318,7 @@ pub fn exit_counter_for_compile_error(compile_error: &CompileError) -> Counter {
pub fn side_exit_counter(reason: crate::hir::SideExitReason) -> Counter {
use crate::hir::SideExitReason::*;
use crate::hir::CallType::*;
use crate::hir::Invariant;
use crate::stats::Counter::*;
match reason {
UnknownNewarraySend(_) => exit_unknown_newarray_send,
@ -328,13 +335,26 @@ pub fn side_exit_counter(reason: crate::hir::SideExitReason) -> Counter {
GuardTypeNot(_) => exit_guard_type_not_failure,
GuardBitEquals(_) => exit_guard_bit_equals_failure,
GuardShape(_) => exit_guard_shape_failure,
PatchPoint(_) => exit_patchpoint,
CalleeSideExit => exit_callee_side_exit,
ObjToStringFallback => exit_obj_to_string_fallback,
Interrupt => exit_interrupt,
StackOverflow => exit_stackoverflow,
BlockParamProxyModified => exit_block_param_proxy_modified,
BlockParamProxyNotIseqOrIfunc => exit_block_param_proxy_not_iseq_or_ifunc,
PatchPoint(Invariant::BOPRedefined { .. })
=> exit_patchpoint_bop_redefined,
PatchPoint(Invariant::MethodRedefined { .. })
=> exit_patchpoint_method_redefined,
PatchPoint(Invariant::StableConstantNames { .. })
=> exit_patchpoint_stable_constant_names,
PatchPoint(Invariant::NoTracePoint)
=> exit_patchpoint_no_tracepoint,
PatchPoint(Invariant::NoEPEscape(_))
=> exit_patchpoint_no_ep_escape,
PatchPoint(Invariant::SingleRactorMode)
=> exit_patchpoint_single_ractor_mode,
PatchPoint(Invariant::NoSingletonClass { .. })
=> exit_patchpoint_no_singleton_class,
}
}