[libclc] Move prefetch to clc library (llvm#141721)

llvm-diff shows no change to amdgcn--amdhsa.bc

Author: wenju-he

libclc/clc/include/clc/async/clc_prefetch.h

@@ -0,0 +1,18 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef __CLC_ASYNC_CLC_PREFETCH_H__
+#define __CLC_ASYNC_CLC_PREFETCH_H__
+
+#define __CLC_BODY <clc/async/clc_prefetch.inc>
+#include <clc/integer/gentype.inc>
+
+#define __CLC_BODY <clc/async/clc_prefetch.inc>
+#include <clc/math/gentype.inc>
+
+#endif // __CLC_ASYNC_CLC_PREFETCH_H__

libclc/clc/include/clc/async/clc_prefetch.inc

@@ -0,0 +1,10 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+_CLC_OVERLOAD _CLC_DECL void __clc_prefetch(const global __CLC_GENTYPE *p,
+                                            size_t num_gentypes);

libclc/clc/lib/generic/SOURCES

@@ -1,3 +1,4 @@
+async/clc_prefetch.cl
 common/clc_degrees.cl
 common/clc_radians.cl
 common/clc_sign.cl

libclc/clc/lib/generic/async/clc_prefetch.cl

@@ -0,0 +1,16 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <clc/async/clc_prefetch.h>
+#include <clc/internal/clc.h>
+
+#define __CLC_BODY <clc_prefetch.inc>
+#include <clc/integer/gentype.inc>
+
+#define __CLC_BODY <clc_prefetch.inc>
+#include <clc/math/gentype.inc>

libclc/clc/lib/generic/async/clc_prefetch.inc

@@ -0,0 +1,10 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+_CLC_OVERLOAD _CLC_DEF void __clc_prefetch(const global __CLC_GENTYPE *p,
+                                           size_t num_gentypes) {}

libclc/opencl/lib/generic/async/prefetch.cl

@@ -6,6 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include <clc/async/clc_prefetch.h>
 #include <clc/opencl/clc.h>
 
 #define __CLC_BODY <prefetch.inc>

libclc/opencl/lib/generic/async/prefetch.inc

@@ -7,4 +7,6 @@
 //===----------------------------------------------------------------------===//
 
 _CLC_OVERLOAD _CLC_DEF void prefetch(const global __CLC_GENTYPE *p,
-                                     size_t num_gentypes) {}
+                                     size_t num_gentypes) {
+  __clc_prefetch(p, num_gentypes);
+}