glsl/linker: Fix out variables linking during single stage

Since out variables are copied from shader objects instruction
streams to linked shader instruction steam it should be cloned
at first to keep source instruction steam unaltered.

Fixes: 966a797e433 ("glsl/linker: Link all out vars from a shader
objects on a single stage")

Signed-off-by: Vadym Shovkoplias <vadym.shovkoplias@globallogic.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105731

diff --git a/src/compiler/glsl/linker.cpp b/src/compiler/glsl/linker.cpp
index 7db34eb..8b1b033 100644 (file)
--- a/src/compiler/glsl/linker.cpp
+++ b/src/compiler/glsl/linker.cpp
@@ -2269,10 +2269,11 @@ link_output_variables(struct gl_linked_shader *linked_shader,
          if (ir->ir_type != ir_type_variable)
             continue;
 
-         ir_variable *const var = (ir_variable *) ir;
+         ir_variable *var = (ir_variable *) ir;
 
          if (var->data.mode == ir_var_shader_out &&
                !symbols->get_variable(var->name)) {
+            var = var->clone(linked_shader, NULL);
             symbols->add_variable(var);
             linked_shader->ir->push_head(var);
          }