commit d7c5b0aa8f3cc8d948f6f2e88509d7952ce5ce5e
author Martin Radev <mradev@nvidia.com> Wed Jul 27 14:04:43 2016 +0300
committer Commit Bot <commit-bot@chromium.org> Mon Jan 02 10:56:09 2017 +0000
tree 9ad002ba1f375f33dab66a27cd496c992a478381
parent f165f0b4c63562221f994d6430483612ebe5bf61

Add support for barriers in the compiler

The patch adds support for barriers in vertex, fragment and compute
shaders.

BUG:angleproject:1442
TEST:angle_unittests

Change-Id: Ic85c3337911851a93a3f56bd935774181600eddd
Reviewed-on: https://chromium-review.googlesource.com/380641
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

src/compiler/translator/Initialize.cpp

diff --git a/src/compiler/translator/Initialize.cpp b/src/compiler/translator/Initialize.cpp
index c787883..9f288db 100644
--- a/src/compiler/translator/Initialize.cpp
+++ b/src/compiler/translator/Initialize.cpp
@@ -589,6 +589,25 @@
     symbolTable.insertBuiltIn(ESSL3_1_BUILTINS, int3, "imageSize", gimage2DArray);
     symbolTable.insertBuiltIn(ESSL3_1_BUILTINS, int2, "imageSize", gimageCube);
 
+    symbolTable.insertBuiltInFunctionNoParameters(ESSL3_1_BUILTINS, EOpMemoryBarrier, voidType,
+                                                  "memoryBarrier");
+    symbolTable.insertBuiltInFunctionNoParameters(ESSL3_1_BUILTINS, EOpMemoryBarrierAtomicCounter,
+                                                  voidType, "memoryBarrierAtomicCounter");
+    symbolTable.insertBuiltInFunctionNoParameters(ESSL3_1_BUILTINS, EOpMemoryBarrierBuffer,
+                                                  voidType, "memoryBarrierBuffer");
+    symbolTable.insertBuiltInFunctionNoParameters(ESSL3_1_BUILTINS, EOpMemoryBarrierImage, voidType,
+                                                  "memoryBarrierImage");
+
+    if (type == GL_COMPUTE_SHADER)
+    {
+        symbolTable.insertBuiltInFunctionNoParameters(ESSL3_1_BUILTINS, EOpBarrier, voidType,
+                                                      "barrier");
+        symbolTable.insertBuiltInFunctionNoParameters(ESSL3_1_BUILTINS, EOpMemoryBarrierShared,
+                                                      voidType, "memoryBarrierShared");
+        symbolTable.insertBuiltInFunctionNoParameters(ESSL3_1_BUILTINS, EOpGroupMemoryBarrier,
+                                                      voidType, "groupMemoryBarrier");
+    }
+
     //
     // Depth range in window coordinates
     //