[libclc] 172/291: Implement prefetch builtin

[Andreas Beckmann]

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anbe pushed a commit to branch master
in repository libclc.

commit 24a7d52240cd7c5fdc589707c323b344d8aba6ec
Author: Tom Stellard <thomas.stellard at amd.com>
Date:   Wed Aug 20 21:23:03 2014 +0000

    Implement prefetch builtin
    
    The default implementation is a no-op.  Targets should override this
    with their own implementations.
    
    git-svn-id: https://llvm.org/svn/llvm-project/libclc/trunk@216127 91177308-0d34-0410-b5e6-96231b3b80d8
---
 generic/include/clc/async/prefetch.h   | 3 +++
 generic/include/clc/async/prefetch.inc | 1 +
 generic/include/clc/clc.h              | 3 +++
 generic/lib/SOURCES                    | 1 +
 generic/lib/async/prefetch.cl          | 9 +++++++++
 generic/lib/async/prefetch.inc         | 1 +
 6 files changed, 18 insertions(+)

diff --git a/generic/include/clc/async/prefetch.h b/generic/include/clc/async/prefetch.h
new file mode 100644
index 0000000..f64bc20
--- /dev/null
+++ b/generic/include/clc/async/prefetch.h
@@ -0,0 +1,3 @@
+#define __CLC_BODY <clc/async/prefetch.inc>
+#include <clc/async/gentype.inc>
+#undef __CLC_BODY
diff --git a/generic/include/clc/async/prefetch.inc b/generic/include/clc/async/prefetch.inc
new file mode 100644
index 0000000..f817a66
--- /dev/null
+++ b/generic/include/clc/async/prefetch.inc
@@ -0,0 +1 @@
+_CLC_OVERLOAD _CLC_DECL void prefetch(const global __CLC_GENTYPE *p, size_t num_gentypes);
diff --git a/generic/include/clc/clc.h b/generic/include/clc/clc.h
index 9815c56..84b25ac 100644
--- a/generic/include/clc/clc.h
+++ b/generic/include/clc/clc.h
@@ -126,6 +126,9 @@
 #include <clc/synchronization/cl_mem_fence_flags.h>
 #include <clc/synchronization/barrier.h>
 
+/* 6.11.10 Async Copy and Prefetch Functions */
+#include <clc/async/prefetch.h>
+
 /* 6.11.11 Atomic Functions */
 #include <clc/atomic/atomic_add.h>
 #include <clc/atomic/atomic_dec.h>
diff --git a/generic/lib/SOURCES b/generic/lib/SOURCES
index 1307661..21fc7ca 100644
--- a/generic/lib/SOURCES
+++ b/generic/lib/SOURCES
@@ -1,3 +1,4 @@
+async/prefetch.cl
 atomic/atomic_impl.ll
 cl_khr_global_int32_base_atomics/atom_add.cl
 cl_khr_global_int32_base_atomics/atom_dec.cl
diff --git a/generic/lib/async/prefetch.cl b/generic/lib/async/prefetch.cl
new file mode 100644
index 0000000..45af21b
--- /dev/null
+++ b/generic/lib/async/prefetch.cl
@@ -0,0 +1,9 @@
+#include <clc/clc.h>
+
+#ifdef cl_khr_fp64
+#pragma OPENCL EXTENSION cl_khr_fp64 : enable
+#endif
+
+#define __CLC_BODY <prefetch.inc>
+#include <clc/async/gentype.inc>
+#undef __CLC_BODY
diff --git a/generic/lib/async/prefetch.inc b/generic/lib/async/prefetch.inc
new file mode 100644
index 0000000..6747e4c
--- /dev/null
+++ b/generic/lib/async/prefetch.inc
@@ -0,0 +1 @@
+_CLC_OVERLOAD _CLC_DEF void prefetch(const global __CLC_GENTYPE *p, size_t num_gentypes) { }

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