SpirvShader: Implement GLSLstd450Cosh

src/Pipeline/SpirvShader.cpp

@@ -3349,7 +3349,11 @@ namespace sw
 		}
 		case GLSLstd450Cosh:
 		{
-			UNIMPLEMENTED("GLSLstd450Cosh");
+			auto val = GenericValue(this, routine, insn.word(5));
+			for (auto i = 0u; i < type.sizeInComponents; i++)
+			{
+				dst.move(i, Cosh(val.Float(i)));
+			}
 			break;
 		}
 		case GLSLstd450Tanh:

src/Reactor/LLVMReactor.cpp

@@ -560,6 +560,7 @@ namespace rr
 			func_.emplace("acosf", reinterpret_cast<void*>(acosf));
 			func_.emplace("atanf", reinterpret_cast<void*>(atanf));
 			func_.emplace("sinhf", reinterpret_cast<void*>(sinhf));
+			func_.emplace("coshf", reinterpret_cast<void*>(coshf));
 
 #ifdef __APPLE__
 			// LLVM uses this function on macOS for tan.
@@ -3126,6 +3127,11 @@ namespace rr
 		return TransformFloat4PerElement(v, "sinhf");
 	}
 
+	RValue<Float4> Cosh(RValue<Float4> v)
+	{
+		return TransformFloat4PerElement(v, "coshf");
+	}
+
 	Type *Float4::getType()
 	{
 		return T(llvm::VectorType::get(T(Float::getType()), 4));

src/Reactor/Reactor.hpp

@@ -2215,6 +2215,7 @@ namespace rr
 	RValue<Float4> Acos(RValue<Float4> x);
 	RValue<Float4> Atan(RValue<Float4> x);
 	RValue<Float4> Sinh(RValue<Float4> x);
+	RValue<Float4> Cosh(RValue<Float4> x);
 
 	template<class T>
 	class Pointer : public LValue<Pointer<T>>