ast_binary* ast_binary_new(lex_ctx_t ctx, int op,
ast_expression* left, ast_expression* right)
{
- ast_binary *fold;
ast_instantiate(ast_binary, ctx, ast_binary_delete);
ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_binary_codegen);
+ if (ast_istype(right, ast_unary) && OPTS_OPTIMIZATION(OPTIM_PEEPHOLE)) {
+ ast_expression *normal = ((ast_unary*)right)->operand;
+
+ /* make a-(-b) => a + b */
+ if (op == INSTR_SUB_F) {
+ op = INSTR_ADD_F;
+ right = normal;
+ ++opts_optimizationcount[OPTIM_PEEPHOLE];
+ } else if (op == INSTR_SUB_V) {
+ op = INSTR_ADD_V;
+ right = normal;
+ ++opts_optimizationcount[OPTIM_PEEPHOLE];
+ }
+ }
+
self->op = op;
self->left = left;
self->right = right;
ast_propagate_effects(self, left);
ast_propagate_effects(self, right);
- if (OPTS_OPTIMIZATION(OPTIM_PEEPHOLE) && (fold = (ast_binary*)fold_superfluous(left, right, op))) {
- ast_binary_delete(self);
- return fold;
- }
-
if (op >= INSTR_EQ_F && op <= INSTR_GT)
self->expression.vtype = TYPE_FLOAT;
else if (op == INSTR_AND || op == INSTR_OR) {
ast_unary *prev = (ast_unary*)((ast_unary*)expr)->operand;
/* Handle for double negation */
- if ((((ast_unary*)expr)->op == op))
+ if (((ast_unary*)expr)->op == op)
prev = (ast_unary*)((ast_unary*)expr)->operand;
if (ast_istype(prev, ast_unary)) {
self->fixedparams = NULL;
self->return_value = NULL;
+ self->static_names = NULL;
+ self->static_count = 0;
+
return self;
cleanup:
*/
ast_unref(self->vtype);
}
+ for (i = 0; i < vec_size(self->static_names); ++i)
+ mem_d(self->static_names[i]);
+ vec_free(self->static_names);
for (i = 0; i < vec_size(self->blocks); ++i)
ast_delete(self->blocks[i]);
vec_free(self->blocks);
ir_value *dummy;
ast_expression *ec;
ast_expression_codegen *cgen;
+
size_t i;
(void)ir;