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vm: add OP_SEND0 and OP_SSEND0 for zero-argument method calls

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These opcodes use BB format instead of BBB, saving 1 byte per call.
In the standard library, this saves ~790 bytes (568 SEND0 + 222 SSEND0).

Co-authored-by: Claude <noreply@anthropic.com>
This commit is contained in:
Yukihiro "Matz" Matsumoto
2026-01-25 07:42:40 +09:00
parent f7988c9339
commit 9123ef46eb
4 changed files with 30 additions and 3 deletions
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src/codedump.c
+6
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@@ -336,6 +336,9 @@ codedump(mrb_state *mrb, const mrb_irep *irep, FILE *out)
fprintf(out, "SSEND\t\tR%d\t:%s\t", a, mrb_sym_dump(mrb, irep->syms[b]));
print_args(c, out);
break;
CASE(OP_SSEND0, BB):
fprintf(out, "SSEND0\tR%d\t:%s\n", a, mrb_sym_dump(mrb, irep->syms[b]));
break;
CASE(OP_SSENDB, BBB):
fprintf(out, "SSENDB\tR%d\t:%s\t", a, mrb_sym_dump(mrb, irep->syms[b]));
print_args(c, out);
@@ -344,6 +347,9 @@ codedump(mrb_state *mrb, const mrb_irep *irep, FILE *out)
fprintf(out, "SEND\t\tR%d\t:%s\t", a, mrb_sym_dump(mrb, irep->syms[b]));
print_args(c, out);
break;
CASE(OP_SEND0, BB):
fprintf(out, "SEND0\t\tR%d\t:%s\n", a, mrb_sym_dump(mrb, irep->syms[b]));
break;
CASE(OP_SENDB, BBB):
fprintf(out, "SENDB\t\tR%d\t:%s\t", a, mrb_sym_dump(mrb, irep->syms[b]));
print_args(c, out);