Add HLSL memory barrier intrinsics, fix dst, add lit & EvaluateAttributeSnapped

glslang/Include/intermediate.h

@@ -515,7 +515,14 @@ enum TOperator {
     EOpInterlockedMin,      // ...
     EOpInterlockedOr,       // ...
     EOpInterlockedXor,      // ...
-
+    EOpAllMemoryBarrierWithGroupSync,    // memory barriers without non-hlsl AST equivalents
+    EOpGroupMemoryBarrierWithGroupSync,  // ...
+    EOpWorkgroupMemoryBarrier,           // ...
+    EOpWorkgroupMemoryBarrierWithGroupSync, // ...
+    EOpEvaluateAttributeSnapped,         // InterpolateAtOffset with int position on 16x16 grid
+    EOpF32tof16,                         // HLSL conversion: half of a PackHalf2x16
+    EOpF16tof32,                         // HLSL conversion: half of an UnpackHalf2x16
+    EOpLit,                              // HLSL lighting coefficient vector
 };
 
 class TIntermTraverser;