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unary NOT operator for float and vector

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This commit is contained in:
Wolfgang (Blub) Bumiller 2012-08-16 16:21:19 +02:00
parent 1a3a0014c5
commit 31a8cd80c8
1 changed files with 22 additions and 0 deletions
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22
parser.c
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@ -549,6 +549,28 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy)
}
break;
case opid2('!','P'):
switch (exprs[0]->expression.vtype) {
case TYPE_FLOAT:
if (CanConstFold1(exprs[0]))
out = (ast_expression*)parser_const_float(parser, !ConstF(0));
else
out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
break;
case TYPE_VECTOR:
if (CanConstFold1(exprs[0]))
out = (ast_expression*)parser_const_float(parser,
(!ConstV(0).x && !ConstV(0).y && !ConstV(0).z));
else
out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[0]);
break;
default:
parseerror(parser, "invalid types used in expression: cannot logically negate type %s",
type_name[exprs[0]->expression.vtype]);
return false;
}
break;
case opid1('+'):
if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
(exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )