GLSL AST -> SPIR-V: Update to explicit enum values for the GLSL extended instruction set.

SPIRV/GLSL450Lib.h

@@ -28,95 +28,95 @@
 namespace GLSL_STD_450 {
 
 enum Entrypoints {
-    Round,
-    RoundEven,
-    Trunc,
-    Abs,
-    Sign,
-    Floor,
-    Ceil,
-    Fract,
-
-    Radians,
-    Degrees,
-    Sin,
-    Cos,
-    Tan,
-    Asin,
-    Acos,
-    Atan,
-    Sinh,
-    Cosh,
-    Tanh,
-    Asinh,
-    Acosh,
-    Atanh,
-    Atan2,
-
-    Pow,
-    Exp,
-    Log,
-    Exp2,
-    Log2,
-    Sqrt,
-    InverseSqrt,
-
-    Determinant,
-    MatrixInverse,
-
-    Modf,            // second argument needs the OpVariable, not an OpLoad
-    Min,
-    Max,
-    Clamp,
-    Mix,
-    Step,
-    SmoothStep,
-
-    FloatBitsToInt,
-    FloatBitsToUint,
-    IntBitsToFloat,
-    UintBitsToFloat,
-
-    Fma,
-    Frexp,
-    Ldexp,
-
-    PackSnorm4x8,
-    PackUnorm4x8,
-    PackSnorm2x16,
-    PackUnorm2x16,
-    PackHalf2x16,
-    PackDouble2x32,
-    UnpackSnorm2x16,
-    UnpackUnorm2x16,
-    UnpackHalf2x16,
-    UnpackSnorm4x8,
-    UnpackUnorm4x8,
-    UnpackDouble2x32,
-
-    Length,
-    Distance,
-    Cross,
-    Normalize,
-    Ftransform,
-    FaceForward,
-    Reflect,
-    Refract,
-
-    UaddCarry,
-    UsubBorrow,
-    UmulExtended,
-    ImulExtended,
-    BitfieldExtract,
-    BitfieldInsert,
-    BitfieldReverse,
-    BitCount,
-    FindLSB,
-    FindMSB,
-
-    InterpolateAtCentroid,
-    InterpolateAtSample,
-    InterpolateAtOffset,
+    Round = 0,
+    RoundEven = 1,
+    Trunc = 2,
+    Abs = 3,
+    Sign = 4,
+    Floor = 5,
+    Ceil = 6,
+    Fract = 7,
+
+    Radians = 8,
+    Degrees = 9,
+    Sin = 10,
+    Cos = 11,
+    Tan = 12,
+    Asin = 13,
+    Acos = 14,
+    Atan = 15,
+    Sinh = 16,
+    Cosh = 17,
+    Tanh = 18,
+    Asinh = 19,
+    Acosh = 20,
+    Atanh = 21,
+    Atan2 = 22,
+
+    Pow = 23,
+    Exp = 24,
+    Log = 25,
+    Exp2 = 26,
+    Log2 = 27,
+    Sqrt = 28,
+    InverseSqrt = 29,
+
+    Determinant = 30,
+    MatrixInverse = 31,
+
+    Modf = 32,            // second argument needs the OpVariable = , not an OpLoad
+    Min = 33,
+    Max = 34,
+    Clamp = 35,
+    Mix = 36,
+    Step = 37,
+    SmoothStep = 38,
+
+    FloatBitsToInt = 39,
+    FloatBitsToUint = 40,
+    IntBitsToFloat = 41,
+    UintBitsToFloat = 42,
+
+    Fma = 43,
+    Frexp = 44,
+    Ldexp = 45,
+
+    PackSnorm4x8 = 46,
+    PackUnorm4x8 = 47,
+    PackSnorm2x16 = 48,
+    PackUnorm2x16 = 49,
+    PackHalf2x16 = 50,
+    PackDouble2x32 = 51,
+    UnpackSnorm2x16 = 52,
+    UnpackUnorm2x16 = 53,
+    UnpackHalf2x16 = 54,
+    UnpackSnorm4x8 = 55,
+    UnpackUnorm4x8 = 56,
+    UnpackDouble2x32 = 57,
+
+    Length = 58,
+    Distance = 59,
+    Cross = 60,
+    Normalize = 61,
+    Ftransform = 62,
+    FaceForward = 63,
+    Reflect = 64,
+    Refract = 65,
+
+    UaddCarry = 66,
+    UsubBorrow = 67,
+    UmulExtended = 68,
+    ImulExtended = 69,
+    BitfieldExtract = 70,
+    BitfieldInsert = 71,
+    BitfieldReverse = 72,
+    BitCount = 73,
+    FindLSB = 74,
+    FindMSB = 75,
+
+    InterpolateAtCentroid = 76,
+    InterpolateAtSample = 77,
+    InterpolateAtOffset = 78,
 
     Count
 };
@@ -178,14 +178,12 @@ inline void GetDebugNames(const char** names)
     names[PackUnorm2x16]           = "packUnorm2x16";
     names[PackHalf2x16]            = "packHalf2x16";
     names[PackDouble2x32]          = "packDouble2x32";
-    names[PackHalf2x16]            = "packHalf2x16";
     names[UnpackSnorm2x16]         = "unpackSnorm2x16";
     names[UnpackUnorm2x16]         = "unpackUnorm2x16";
     names[UnpackHalf2x16]          = "unpackHalf2x16";
     names[UnpackSnorm4x8]          = "unpackSnorm4x8";
     names[UnpackUnorm4x8]          = "unpackUnorm4x8";
     names[UnpackDouble2x32]        = "unpackDouble2x32";
-    names[UnpackHalf2x16]          = "unpackHalf2x16";
     names[Length]                  = "length";
     names[Distance]                = "distance";
     names[Cross]                   = "cross";