Connecting the dots for some built-in functions

- Completed implementation of round
  and hyperbolic trigonometry operations
- Added a few more cases in op to string
  functions

Change-Id: Ic09d228de8e4446a66152b70edc6a6bba511288a
Reviewed-on: https://swiftshader-review.googlesource.com/2891
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

src/Shader/Shader.hpp

diff --git a/src/Shader/Shader.hpp b/src/Shader/Shader.hpp
index 898e96e..8c4fe3d 100644
--- a/src/Shader/Shader.hpp
+++ b/src/Shader/Shader.hpp
@@ -52,6 +52,8 @@
 			OPCODE_ATT,   // D3DSIO_DST

 			OPCODE_LRP,

 			OPCODE_FRC,

+			OPCODE_ISNAN,

+			OPCODE_ISINF,

 			OPCODE_M4X4,

 			OPCODE_M4X3,

 			OPCODE_M3X4,

@@ -147,10 +149,18 @@
 			OPCODE_ASIN,

 			OPCODE_ATAN,

 			OPCODE_ATAN2,

+			OPCODE_COSH,

+			OPCODE_SINH,

+			OPCODE_TANH,

+			OPCODE_ACOSH,

+			OPCODE_ASINH,

+			OPCODE_ATANH,

 			OPCODE_DP1,

 			OPCODE_DP2,

 			OPCODE_TRUNC,

 			OPCODE_FLOOR,

+			OPCODE_ROUND,

+			OPCODE_ROUNDEVEN,

 			OPCODE_CEIL,

 			OPCODE_SQRT,

 			OPCODE_RSQ,

@@ -180,6 +190,16 @@
 			OPCODE_AND,

 			OPCODE_STEP,

 			OPCODE_SMOOTH,

+			OPCODE_FLOATBITSTOINT,

+			OPCODE_FLOATBITSTOUINT,

+			OPCODE_INTBITSTOFLOAT,

+			OPCODE_UINTBITSTOFLOAT,

+			OPCODE_PACKSNORM2x16,

+			OPCODE_PACKUNORM2x16,

+			OPCODE_PACKHALF2x16,

+			OPCODE_UNPACKSNORM2x16,

+			OPCODE_UNPACKUNORM2x16,

+			OPCODE_UNPACKHALF2x16,

 			OPCODE_FORWARD1,

 			OPCODE_FORWARD2,

 			OPCODE_FORWARD3,