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Fold for div op

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This commit is contained in:
Dale Weiler 2013-07-31 11:48:43 +00:00
parent 8dd125c8f3
commit b0460de935
1 changed files with 17 additions and 1 deletions
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18
fold.c
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@ -357,6 +357,22 @@ static GMQCC_INLINE ast_expression *fold_op_mul(fold_t *fold, ast_value *a, ast_
return NULL;
}
static GMQCC_INLINE ast_expression *fold_op_div(fold_t *fold, ast_value *a, ast_value *b) {
if (isfloatonly(a)) {
return (fold_possible(a) && fold_possible(b))
? fold_constgen_float(fold, fold_immvalue_float(a) / fold_immvalue_float(b))
: NULL;
}
if (isvectoronly(a)) {
if (fold_possible(a) && fold_possible(b))
return fold_constgen_vector(fold, vec3_mulvf(fold_immvalue_vector(a), 1.0f / fold_immvalue_float(b)));
else if (fold_possible(b))
return fold_constgen_float (fold, 1.0f / fold_immvalue_float(b));
}
return NULL;
}
ast_expression *fold_op(fold_t *fold, const oper_info *info, ast_expression **opexprs) {
ast_value *a = (ast_value*)opexprs[0];
ast_value *b = (ast_value*)opexprs[1];
@ -423,7 +439,7 @@ ast_expression *fold_op(fold_t *fold, const oper_info *info, ast_expression **op
: NULL;
case opid1('*'): return fold_op_mul(fold, a, b);
case opid1('/'):
case opid1('/'): return fold_op_div(fold, a, b);
/* TODO: seperate function for this case */
return NULL;
case opid2('|','|'):