trunc: Remove llvm intrinsic from the header.

Reviewer: Aaron Watry
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>

git-svn-id: https://llvm.org/svn/llvm-project/libclc/trunk@356018 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/generic/include/clc/math/trunc.h b/generic/include/clc/math/trunc.h
index d34f661..e8cc1f8 100644
--- a/generic/include/clc/math/trunc.h
+++ b/generic/include/clc/math/trunc.h
@@ -1,9 +1,7 @@
-#undef trunc
-#define trunc __clc_trunc
+#define __CLC_BODY <clc/math/unary_decl.inc>
+#define __CLC_FUNCTION trunc
 
-#define __CLC_FUNCTION __clc_trunc
-#define __CLC_INTRINSIC "llvm.trunc"
-#include <clc/math/unary_intrin.inc>
+#include <clc/math/gentype.inc>
 
+#undef __CLC_BODY
 #undef __CLC_FUNCTION
-#undef __CLC_INTRINSIC
diff --git a/generic/lib/SOURCES b/generic/lib/SOURCES
index a54aa8a..df7f68f 100644
--- a/generic/lib/SOURCES
+++ b/generic/lib/SOURCES
@@ -189,6 +189,7 @@
 math/clc_tanpi.cl
 math/tanpi.cl
 math/tgamma.cl
+math/trunc.cl
 misc/shuffle.cl
 misc/shuffle2.cl
 relational/all.cl
diff --git a/generic/lib/math/trunc.cl b/generic/lib/math/trunc.cl
new file mode 100644
index 0000000..930bf78
--- /dev/null
+++ b/generic/lib/math/trunc.cl
@@ -0,0 +1,10 @@
+#include <clc/clc.h>
+
+// Map the llvm intrinsic to an OpenCL function.
+#define __CLC_FUNCTION __clc_trunc
+#define __CLC_INTRINSIC "llvm.trunc"
+#include <clc/math/unary_intrin.inc>
+
+#undef __CLC_FUNCTION
+#define __CLC_FUNCTION trunc
+#include "unary_builtin.inc"