nir: Remove useless ftrunc inside f2i/f2u.

[mesa.git] / src / glsl / opt_copy_propagation.cpp

diff --git a/src/glsl/opt_copy_propagation.cpp b/src/glsl/opt_copy_propagation.cpp
index 7282b611ebcc9a03afe76ab66cb1caac1416c56e..806027b280ea9d39e80f8b681a0e0bcf2d06460a 100644 (file)
--- a/src/glsl/opt_copy_propagation.cpp
+++ b/src/glsl/opt_copy_propagation.cpp
@@ -128,6 +128,9 @@ ir_copy_propagation_visitor::visit_enter(ir_function_signature *ir)
 
    visit_list_elements(this, &ir->body);
 
+   ralloc_free(this->acp);
+   ralloc_free(this->kills);
+
    this->kills = orig_kills;
    this->acp = orig_acp;
    this->killed_all = orig_killed_all;
@@ -167,9 +170,7 @@ ir_copy_propagation_visitor::visit(ir_dereference_variable *ir)
 
    ir_variable *var = ir->var;
 
-   foreach_iter(exec_list_iterator, iter, *this->acp) {
-      acp_entry *entry = (acp_entry *)iter.get();
-
+   foreach_in_list(acp_entry, entry, this->acp) {
       if (var == entry->lhs) {
         ir->var = entry->rhs;
         this->progress = true;
@@ -185,15 +186,14 @@ ir_visitor_status
 ir_copy_propagation_visitor::visit_enter(ir_call *ir)
 {
    /* Do copy propagation on call parameters, but skip any out params */
-   exec_list_iterator sig_param_iter = ir->callee->parameters.iterator();
-   foreach_iter(exec_list_iterator, iter, ir->actual_parameters) {
-      ir_variable *sig_param = (ir_variable *)sig_param_iter.get();
-      ir_instruction *ir = (ir_instruction *)iter.get();
-      if (sig_param->mode != ir_var_function_out
-          && sig_param->mode != ir_var_function_inout) {
+   foreach_two_lists(formal_node, &ir->callee->parameters,
+                     actual_node, &ir->actual_parameters) {
+      ir_variable *sig_param = (ir_variable *) formal_node;
+      ir_rvalue *ir = (ir_rvalue *) actual_node;
+      if (sig_param->data.mode != ir_var_function_out
+          && sig_param->data.mode != ir_var_function_inout) {
          ir->accept(this);
       }
-      sig_param_iter.next();
    }
 
    /* Since we're unlinked, we don't (necessarily) know the side effects of
@@ -217,9 +217,8 @@ ir_copy_propagation_visitor::handle_if_block(exec_list *instructions)
    this->killed_all = false;
 
    /* Populate the initial acp with a copy of the original */
-   foreach_iter(exec_list_iterator, iter, *orig_acp) {
-      acp_entry *a = (acp_entry *)iter.get();
-      this->acp->push_tail(new(this->mem_ctx) acp_entry(a->lhs, a->rhs));
+   foreach_in_list(acp_entry, a, orig_acp) {
+      this->acp->push_tail(new(this->acp) acp_entry(a->lhs, a->rhs));
    }
 
    visit_list_elements(this, instructions);
@@ -230,13 +229,15 @@ ir_copy_propagation_visitor::handle_if_block(exec_list *instructions)
 
    exec_list *new_kills = this->kills;
    this->kills = orig_kills;
+   ralloc_free(this->acp);
    this->acp = orig_acp;
    this->killed_all = this->killed_all || orig_killed_all;
 
-   foreach_iter(exec_list_iterator, iter, *new_kills) {
-      kill_entry *k = (kill_entry *)iter.get();
+   foreach_in_list(kill_entry, k, new_kills) {
       kill(k->var);
    }
+
+   ralloc_free(new_kills);
 }
 
 ir_visitor_status
@@ -274,14 +275,16 @@ ir_copy_propagation_visitor::visit_enter(ir_loop *ir)
 
    exec_list *new_kills = this->kills;
    this->kills = orig_kills;
+   ralloc_free(this->acp);
    this->acp = orig_acp;
    this->killed_all = this->killed_all || orig_killed_all;
 
-   foreach_iter(exec_list_iterator, iter, *new_kills) {
-      kill_entry *k = (kill_entry *)iter.get();
+   foreach_in_list(kill_entry, k, new_kills) {
       kill(k->var);
    }
 
+   ralloc_free(new_kills);
+
    /* already descended into the children. */
    return visit_continue_with_parent;
 }
@@ -292,9 +295,7 @@ ir_copy_propagation_visitor::kill(ir_variable *var)
    assert(var != NULL);
 
    /* Remove any entries currently in the ACP for this kill. */
-   foreach_iter(exec_list_iterator, iter, *acp) {
-      acp_entry *entry = (acp_entry *)iter.get();
-
+   foreach_in_list_safe(acp_entry, entry, acp) {
       if (entry->lhs == var || entry->rhs == var) {
         entry->remove();
       }
@@ -302,7 +303,7 @@ ir_copy_propagation_visitor::kill(ir_variable *var)
 
    /* Add the LHS variable to the list of killed variables in this block.
     */
-   this->kills->push_tail(new(this->mem_ctx) kill_entry(var));
+   this->kills->push_tail(new(this->kills) kill_entry(var));
 }
 
 /**
@@ -330,7 +331,7 @@ ir_copy_propagation_visitor::add_copy(ir_assignment *ir)
         ir->condition = new(ralloc_parent(ir)) ir_constant(false);
         this->progress = true;
       } else {
-        entry = new(this->mem_ctx) acp_entry(lhs_var, rhs_var);
+        entry = new(this->acp) acp_entry(lhs_var, rhs_var);
         this->acp->push_tail(entry);
       }
    }