From: Vadym Shovkoplias <vadim.shovkoplias@gmail.com>
Date: Wed, 24 Oct 2018 10:28:23 +0000 (+0300)
Subject: glsl/linker: Fix out variables linking during single stage
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7d66eddbbdec98df21dc9d8286f8e047d575b52d;p=mesa.git

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 7db34ebf95b..8b1b03322a0 100644
--- 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);
          }