libclc/generic/include/clc/math/sin.h - third_party/github.com/llvm/llvm-project - Git at Google

 #undef sin
 #define sin __clc_sin

 #define __CLC_FUNCTION __clc_sin
 #define __CLC_INTRINSIC "llvm.sin"
 #include <clc/math/unary_intrin.inc>
	#undef sin
	#define sin __clc_sin

	#define __CLC_FUNCTION __clc_sin
	#define __CLC_INTRINSIC "llvm.sin"
	#include <clc/math/unary_intrin.inc>