зеркало из https://github.com/github/ruby.git
only add the trailing nop if the catch table is not break / next / redo
We don't need nop padding when the catch tables are only for break / next / redo, so lets avoid them. This eliminates nop padding in many lambdas. Co-authored-by: Alan Wu <XrXr@users.noreply.github.com>
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@ -1413,6 +1413,13 @@ iseq_insert_nop_between_end_and_cont(rb_iseq_t *iseq)
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LINK_ELEMENT *end = (LINK_ELEMENT *)(ptr[2] & ~1);
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LINK_ELEMENT *cont = (LINK_ELEMENT *)(ptr[4] & ~1);
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LINK_ELEMENT *e;
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enum catch_type ct = (enum catch_type)(ptr[0] & 0xffff);
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if (ct != CATCH_TYPE_BREAK
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&& ct != CATCH_TYPE_NEXT
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&& ct != CATCH_TYPE_REDO) {
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for (e = end; e && (IS_LABEL(e) || IS_TRACE(e)); e = e->next) {
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if (e == cont) {
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INSN *nop = new_insn_core(iseq, 0, BIN(nop), 0, 0);
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@ -1422,6 +1429,7 @@ iseq_insert_nop_between_end_and_cont(rb_iseq_t *iseq)
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}
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}
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}
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}
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static int
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iseq_setup_insn(rb_iseq_t *iseq, LINK_ANCHOR *const anchor)
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