X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fglsl%2Fopt_constant_folding.cpp;h=74b855e5e948ebbc822d4d8b7413dde21517aa32;hb=400b833592d9aad7b2c4627a897380642d52189f;hp=072fefe9ab818c9b52de08dc9817dbed02f63000;hpb=42a29d89fd85c86387f0d119950e243b6de76d79;p=mesa.git

diff --git a/src/glsl/opt_constant_folding.cpp b/src/glsl/opt_constant_folding.cpp
index 072fefe9ab8..74b855e5e94 100644
--- a/src/glsl/opt_constant_folding.cpp
+++ b/src/glsl/opt_constant_folding.cpp
@@ -79,6 +79,11 @@ ir_constant_folding_visitor::handle_rvalue(ir_rvalue **rvalue)
       }
    }
 
+   /* Ditto for swizzles. */
+   ir_swizzle *swiz = (*rvalue)->as_swizzle();
+   if (swiz && !swiz->val->as_constant())
+      return;
+
    ir_constant *constant = (*rvalue)->constant_expression_value();
    if (constant) {
       *rvalue = constant;
@@ -122,13 +127,13 @@ ir_visitor_status
 ir_constant_folding_visitor::visit_enter(ir_call *ir)
 {
    /* Attempt to constant fold parameters */
-   exec_list_iterator sig_iter = ir->callee->parameters.iterator();
-   foreach_iter(exec_list_iterator, iter, *ir) {
-      ir_rvalue *param_rval = (ir_rvalue *)iter.get();
-      ir_variable *sig_param = (ir_variable *)sig_iter.get();
+   foreach_two_lists(formal_node, &ir->callee->parameters,
+                     actual_node, &ir->actual_parameters) {
+      ir_rvalue *param_rval = (ir_rvalue *) actual_node;
+      ir_variable *sig_param = (ir_variable *) formal_node;
 
-      if (sig_param->mode == ir_var_function_in
-          || sig_param->mode == ir_var_const_in) {
+      if (sig_param->data.mode == ir_var_function_in
+          || sig_param->data.mode == ir_var_const_in) {
 	 ir_rvalue *new_param = param_rval;
 
 	 handle_rvalue(&new_param);
@@ -136,7 +141,6 @@ ir_constant_folding_visitor::visit_enter(ir_call *ir)
 	    param_rval->replace_with(new_param);
 	 }
       }
-      sig_iter.next();
    }
 
    /* Next, see if the call can be replaced with an assignment of a constant */