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 7db34ebf95b1205a958b746b2c3338905a8674ad..8b1b03322a0eba7c910a999231e476fcb7df2a0b 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);
          }