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YJIT: add an assert for branch_stub_hit() #6505

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merged 1 commit into from Oct 6, 2022
Merged

YJIT: add an assert for branch_stub_hit() #6505

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5 changes: 4 additions & 1 deletion yjit/src/core.rs
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Expand Up @@ -1647,9 +1647,12 @@ fn branch_stub_hit_body(branch_ptr: *const c_void, target_idx: u32, ec: EcPtr) -
let cfp = get_ec_cfp(ec);
let original_interp_sp = get_cfp_sp(cfp);

let reconned_pc = rb_iseq_pc_at_idx(rb_cfp_get_iseq(cfp), target.idx);
let running_iseq = rb_cfp_get_iseq(cfp);
let reconned_pc = rb_iseq_pc_at_idx(running_iseq, target.idx);
let reconned_sp = original_interp_sp.offset(target_ctx.sp_offset.into());

assert_eq!(running_iseq, target.iseq as _, "each stub expects a particular iseq");

// Update the PC in the current CFP, because it may be out of sync in JITted code
rb_set_cfp_pc(cfp, reconned_pc);

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