From: Francisco Jerez <currojerez@riseup.net>
Date: Thu, 14 Jul 2016 19:57:14 +0000 (-0700)
Subject: glsl/linker: Allow fragment output overlap for gl_LastFragData.
X-Git-Tag: upstream/17.1.0~7056
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=913ae618c6bdb42366f4d87265a6e35a88656e70;p=platform%2Fupstream%2Fmesa.git

glsl/linker: Allow fragment output overlap for gl_LastFragData.

gl_LastFragData overlaps gl_FragData by definition.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
---

diff --git a/src/compiler/glsl/linker.cpp b/src/compiler/glsl/linker.cpp
index a1a65ef..4b404ff 100644
--- a/src/compiler/glsl/linker.cpp
+++ b/src/compiler/glsl/linker.cpp
@@ -2673,6 +2673,9 @@ assign_attribute_or_color_locations(void *mem_ctx,
          }
       }
 
+      if (strcmp(var->name, "gl_LastFragData") == 0)
+         continue;
+
       /* From GL4.5 core spec, section 15.2 (Shader Execution):
        *
        *     "Output binding assignments will cause LinkProgram to fail: