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It was much easier in the AST, really.

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Dale Weiler 2013-09-28 06:33:15 -04:00
parent 81df8fa139
commit 7c25af973c
1 changed files with 10 additions and 0 deletions
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10
ast.c
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@ -518,6 +518,16 @@ ast_unary* ast_unary_new(lex_ctx_t ctx, int op,
self->op = op; self->op = op;
self->operand = expr; self->operand = expr;
if (ast_istype(expr, ast_unary)) {
ast_expression *prev = (ast_expression*)((ast_unary*)expr)->operand;
if (ast_istype(prev, ast_unary)) {
ast_expression_delete((ast_expression*)self);
mem_d(self);
++opts_optimizationcount[OPTIM_PEEPHOLE];
return (ast_unary*)prev;
}
}
ast_propagate_effects(self, expr); ast_propagate_effects(self, expr);
if (op >= INSTR_NOT_F && op <= INSTR_NOT_FNC) { if (op >= INSTR_NOT_F && op <= INSTR_NOT_FNC) {