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Commit 607795ff authored by Yukihiro "Matz" Matsumoto's avatar Yukihiro "Matz" Matsumoto
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more OP_MOVE swap detection in peephole optimization

parent 3c4cd542
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Showing with 3 additions and 3 deletions
src/codegen.c
View file @ 607795ff
......@@ -188,13 +188,13 @@ genop_peep(codegen_scope *s, mrb_code i, int val)
if (val) break;
switch (c0) {
case OP_MOVE:
if (GETARG_B(i) == GETARG_A(i0) && GETARG_A(i) == GETARG_B(i0) && GETARG_A(i) >= s->nlocals) {
if (GETARG_B(i) == GETARG_A(i0) && GETARG_A(i) == GETARG_B(i0)) {
/* skip swapping OP_MOVE */
return 0;
}
if (GETARG_B(i) == GETARG_A(i0) && GETARG_A(i0) >= s->nlocals) {
s->iseq[s->pc-1] = MKOP_AB(OP_MOVE, GETARG_A(i), GETARG_B(i0));
return 0;
s->pc--;
return genop_peep(s, MKOP_AB(OP_MOVE, GETARG_A(i), GETARG_B(i0)), val);
}
break;
case OP_LOADI:
......
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