glsl: Always copy the index when cloning a variable.

The index is also used for GL_ARB_blend_func_extended.  Cloning in
i965 was dropping a non-ARB_explicit_attrib_location index.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Dave Airlie <airlied@redhat.com>

1 files changed, 1 insertions, 6 deletions

diff --git a/src/glsl/ir_clone.cpp b/src/glsl/ir_clone.cpp
index 5a7a71c..5046ac3 100644
--- a/src/glsl/ir_clone.cpp
+++ b/src/glsl/ir_clone.cpp
@@ -53,6 +53,7 @@ ir_variable::clone(void *mem_ctx, struct hash_table *ht) const
    var->invariant = this->invariant;
    var->interpolation = this->interpolation;
    var->location = this->location;
+   var->index = this->index;
    var->warn_extension = this->warn_extension;
    var->origin_upper_left = this->origin_upper_left;
    var->pixel_center_integer = this->pixel_center_integer;
@@ -72,12 +73,6 @@ ir_variable::clone(void *mem_ctx, struct hash_table *ht) const
 	     sizeof(this->state_slots[0]) * var->num_state_slots);
    }
 
-   if (this->explicit_location)
-      var->location = this->location;
-
-   if (this->explicit_index)
-      var->index = this->index;
-
    if (this->constant_value)
       var->constant_value = this->constant_value->clone(mem_ctx, ht);