From 259fc505454ea6a67aeacf6cdebf1398d9947759 Mon Sep 17 00:00:00 2001
From: Ian Romanick <ian.d.romanick@intel.com>
Date: Tue, 24 May 2016 12:04:53 -0700
Subject: [PATCH] glsl/linker: Fail linking on ES if uniform precision
 qualifiers don't match

When GL_OES_geometry_shader is enabled, this fixes
dEQP-GLES31.functional.shaders.linkage.geometry.uniform.rules.type_mismatch_1.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
---
 src/compiler/glsl/linker.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/compiler/glsl/linker.cpp b/src/compiler/glsl/linker.cpp
index 436b452f7d9..c95edf3e63d 100644
--- a/src/compiler/glsl/linker.cpp
+++ b/src/compiler/glsl/linker.cpp
@@ -1153,6 +1153,13 @@ cross_validate_globals(struct gl_shader_program *prog,
                          mode_string(var), var->name);
             return;
          }
+
+         if (prog->IsES && existing->data.precision != var->data.precision) {
+            linker_error(prog, "declarations for %s `%s` have "
+                         "mismatching precision qualifiers\n",
+                         mode_string(var), var->name);
+            return;
+         }
       } else
          variables->add_variable(var);
    }
-- 
2.30.2