[libclc] Move round to CLC library (#128721)

Author: frasercrmck

libclc/clc/include/clc/math/clc_round.h

@@ -0,0 +1,12 @@
+#ifndef __CLC_MATH_CLC_ROUND_H__
+#define __CLC_MATH_CLC_ROUND_H__
+
+#define __CLC_BODY <clc/math/unary_decl.inc>
+#define __CLC_FUNCTION __clc_round
+
+#include <clc/math/gentype.inc>
+
+#undef __CLC_BODY
+#undef __CLC_FUNCTION
+
+#endif // __CLC_MATH_CLC_ROUND_H__

libclc/clc/lib/generic/SOURCES

@@ -31,6 +31,7 @@ math/clc_modf.cl
 math/clc_nan.cl
 math/clc_nextafter.cl
 math/clc_rint.cl
+math/clc_round.cl
 math/clc_sw_fma.cl
 math/clc_trunc.cl
 relational/clc_all.cl

libclc/clc/lib/generic/math/clc_round.cl

@@ -0,0 +1,6 @@
+#include <clc/internal/clc.h>
+
+#undef __CLC_FUNCTION
+#define __CLC_FUNCTION __clc_round
+#define __CLC_BUILTIN __builtin_elementwise_round
+#include <clc/math/unary_builtin.inc>

libclc/generic/lib/math/round.cl

@@ -1,9 +1,6 @@
 #include <clc/clc.h>
-
-// Map the llvm intrinsic to an OpenCL function.
-#define __CLC_FUNCTION __clc_round
-#define __CLC_INTRINSIC "llvm.round"
-#include <clc/math/unary_intrin.inc>
+#include <clc/clcmacro.h>
+#include <clc/math/clc_round.h>
 
 #undef __CLC_FUNCTION
 #define __CLC_FUNCTION round