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YJIT: Chain guard classes on instance_of #8209

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Aug 14, 2023
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YJIT: Chain guard classes on instance_of #8209

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11 changes: 9 additions & 2 deletions yjit/src/codegen.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -4264,7 +4264,7 @@ fn jit_rb_kernel_is_a(
fn jit_rb_kernel_instance_of(
jit: &mut JITState,
asm: &mut Assembler,
_ocb: &mut OutlinedCb,
ocb: &mut OutlinedCb,
_ci: *const rb_callinfo,
_cme: *const rb_callable_method_entry_t,
_block: Option<BlockHandler>,
Expand Down Expand Up @@ -4305,7 +4305,14 @@ fn jit_rb_kernel_instance_of(

asm.comment("Kernel#instance_of?");
asm.cmp(asm.stack_opnd(0), sample_rhs.into());
asm.jne(Target::side_exit(Counter::guard_send_instance_of_class_mismatch));
jit_chain_guard(
JCC_JNE,
jit,
asm,
ocb,
SEND_MAX_CHAIN_DEPTH,
Counter::guard_send_instance_of_class_mismatch,
);

asm.stack_pop(2);

Expand Down