Merge pull request #357 from steve-lunarg/intrinsics

HLSL: Add asdouble, fma, & mad intrinsics

glslang/Include/intermediate.h

@@ -524,6 +524,7 @@ enum TOperator {
     EOpF16tof32,                         // HLSL conversion: half of an UnpackHalf2x16
     EOpLit,                              // HLSL lighting coefficient vector
     EOpTextureBias,                      // HLSL texture bias: will be lowered to EOpTexture
+    EOpAsDouble,                         // slightly different from EOpUint64BitsToDouble
 };
 
 class TIntermTraverser;

glslang/MachineIndependent/ShaderLang.cpp

@@ -368,8 +368,8 @@ bool DeduceVersionProfile(TInfoSink& infoSink, EShLanguage stage, bool versionNo
     bool correct = true;
 
     if (source == EShSourceHlsl) {
-        version = 450;         // TODO: GLSL parser is still used for builtins.
-        profile = ENoProfile;
+        version = 450;          // TODO: GLSL parser is still used for builtins.
+        profile = ECoreProfile; // allow doubles in prototype parsing
         return correct;
     }