commit 823fc656445946b805f46024a4499ee354b5824c
author John Kessenich <cepheus@frii.com> Thu May 19 18:26:42 2016 -0600
committer John Kessenich <cepheus@frii.com> Thu May 19 18:26:42 2016 -0600
tree 83efb499b011eda116037446f336dc05ca45c7b5
parent eb6d9507899448e06d59899d603dc5db48eb3045

SPV: Don't emit memory barrier for ESSL barrier(), but still do for GLSL barrier().

Addresses issue #205.
Current open Khronos bug for finalizing this.

SPIRV/GlslangToSpv.cpp

diff --git a/SPIRV/GlslangToSpv.cpp b/SPIRV/GlslangToSpv.cpp
index 8971470..ec63d63 100755
--- a/SPIRV/GlslangToSpv.cpp
+++ b/SPIRV/GlslangToSpv.cpp
@@ -3881,7 +3881,8 @@
         builder.createNoResultOp(spv::OpEndPrimitive);
         return 0;
     case glslang::EOpBarrier:
-        builder.createMemoryBarrier(spv::ScopeDevice, spv::MemorySemanticsAllMemory);
+        if (glslangIntermediate->getProfile() != EEsProfile)
+            builder.createMemoryBarrier(spv::ScopeDevice, spv::MemorySemanticsAllMemory);
         builder.createControlBarrier(spv::ScopeDevice, spv::ScopeDevice, spv::MemorySemanticsMaskNone);
         return 0;
     case glslang::EOpMemoryBarrier: