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I'm in a state of confusion as to why constant folding was never done on comparisions, now it is ;)

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This commit is contained in:
Dale Weiler 2013-07-30 17:27:54 +00:00
parent d6ca5673dc
commit 2c975fe48f
1 changed files with 6 additions and 2 deletions
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8
parser.c
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@ -1326,7 +1326,9 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy)
type_name[exprs[1]->vtype]); type_name[exprs[1]->vtype]);
return false; return false;
} }
out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->vtype], exprs[0], exprs[1]); out = CanConstFold(exprs[0], exprs[1])
? (ast_expression*)parser_const_float(parser, ConstF(0) != ConstF(1))
: (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->vtype], exprs[0], exprs[1]);
break; break;
case opid2('=', '='): case opid2('=', '='):
if (exprs[0]->vtype != exprs[1]->vtype) { if (exprs[0]->vtype != exprs[1]->vtype) {
@ -1335,7 +1337,9 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy)
type_name[exprs[1]->vtype]); type_name[exprs[1]->vtype]);
return false; return false;
} }
out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->vtype], exprs[0], exprs[1]); out = CanConstFold(exprs[0], exprs[1])
? (ast_expression*)parser_const_float(parser, ConstF(0) == ConstF(1))
: (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->vtype], exprs[0], exprs[1]);
break; break;
case opid1('='): case opid1('='):