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codegen.c: refactor NODE_WHILE and NODE_UNTIL.

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This commit is contained in:
Yukihiro "Matz" Matsumoto
2021-09-24 11:39:00 +09:00
parent 7c6c4ebb56
commit ab54ca272a
1 changed files with 11 additions and 18 deletions
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mrbgems/mruby-compiler/core/codegen.c
+11 -18
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@@ -2268,10 +2268,7 @@ codegen(codegen_scope *s, node *tree, int val)
if (!val) lp->reg = -1;
lp->pc0 = new_label(s);
switch (nint(tree->car->car)) {
case NODE_TRUE:
case NODE_INT:
case NODE_STR:
if (true_always(tree->car)) {
if (nt == NODE_UNTIL) {
if (val) {
genop_1(s, OP_LOADNIL, cursp());
@@ -2279,9 +2276,8 @@ codegen(codegen_scope *s, node *tree, int val)
}
goto exit;
}
break;
case NODE_FALSE:
case NODE_NIL:
}
else if (false_always(tree->car)) {
if (nt == NODE_WHILE) {
if (val) {
genop_1(s, OP_LOADNIL, cursp());
@@ -2289,17 +2285,14 @@ codegen(codegen_scope *s, node *tree, int val)
}
goto exit;
}
break;
default:
codegen(s, tree->car, VAL);
pop();
if (nt == NODE_WHILE) {
pos = genjmp2_0(s, OP_JMPNOT, cursp(), NOVAL);
}
else {
pos = genjmp2_0(s, OP_JMPIF, cursp(), NOVAL);
}
break;
}
codegen(s, tree->car, VAL);
pop();
if (nt == NODE_WHILE) {
pos = genjmp2_0(s, OP_JMPNOT, cursp(), NOVAL);
}
else {
pos = genjmp2_0(s, OP_JMPIF, cursp(), NOVAL);
}
lp->pc1 = new_label(s);
codegen(s, tree->cdr, NOVAL);