From f58dee9f3a5773dfebcd60df60781c12def0f718 Mon Sep 17 00:00:00 2001
From: Jan Vesely <jan.vesely@rutgers.edu>
Date: Fri, 10 Nov 2017 22:16:15 +0000
Subject: [PATCH] native_log2: Switch to generic native intrinsic inc file

v2: Add __CLC_XCONCAT instead of function name redirection
    Use __CLC_XCONCAT for intrinsic functions as well

Reviewer: Jeroen Ketema
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
llvm-svn: 317932
---
 libclc/generic/include/utils.h                        | 10 ++++++++++
 libclc/generic/lib/math/native_log2.cl                |  8 ++------
 .../{native_log2.inc => native_unary_intrinsic.inc}   | 19 +++++++++++++++++--
 3 files changed, 29 insertions(+), 8 deletions(-)
 create mode 100644 libclc/generic/include/utils.h
 rename libclc/generic/lib/math/{native_log2.inc => native_unary_intrinsic.inc} (70%)

diff --git a/libclc/generic/include/utils.h b/libclc/generic/include/utils.h
new file mode 100644
index 0000000..018a7b3
--- /dev/null
+++ b/libclc/generic/include/utils.h
@@ -0,0 +1,10 @@
+#ifndef __CLC_UTILS_H_
+#define __CLC_UTILS_H_
+
+#define __CLC_CONCAT(x, y) x ## y
+#define __CLC_XCONCAT(x, y) __CLC_CONCAT(x, y)
+
+#define __CLC_STR(x) #x
+#define __CLC_XSTR(x) __CLC_STR(x)
+
+#endif
diff --git a/libclc/generic/lib/math/native_log2.cl b/libclc/generic/lib/math/native_log2.cl
index 35ed18b..b610423 100644
--- a/libclc/generic/lib/math/native_log2.cl
+++ b/libclc/generic/lib/math/native_log2.cl
@@ -22,11 +22,7 @@
 
 #include <clc/clc.h>
 
-#define __CLC_FUNCTION __clc_native_log2
-#define __CLC_INTRINSIC "llvm.log2"
-#undef cl_khr_fp64
-#include <clc/math/unary_intrin.inc>
-
-#define __CLC_BODY <native_log2.inc>
+#define __CLC_NATIVE_INTRINSIC log2
+#define __CLC_BODY <native_unary_intrinsic.inc>
 #define __FLOAT_ONLY
 #include <clc/math/gentype.inc>
diff --git a/libclc/generic/lib/math/native_log2.inc b/libclc/generic/lib/math/native_unary_intrinsic.inc
similarity index 70%
rename from libclc/generic/lib/math/native_log2.inc
rename to libclc/generic/lib/math/native_unary_intrinsic.inc
index 0f6a509..dbea288 100644
--- a/libclc/generic/lib/math/native_log2.inc
+++ b/libclc/generic/lib/math/native_unary_intrinsic.inc
@@ -20,6 +20,21 @@
  * THE SOFTWARE.
  */
 
-_CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE native_log2(__CLC_GENTYPE val) {
-  return __clc_native_log2(val);
+#include <utils.h>
+
+#ifdef __CLC_SCALAR
+#define __CLC_FUNCTION __CLC_XCONCAT(__clc_native_, __CLC_NATIVE_INTRINSIC)
+#define __CLC_INTRINSIC "llvm." __CLC_XSTR(__CLC_NATIVE_INTRINSIC)
+
+#undef cl_khr_fp64
+#include <clc/math/unary_intrin.inc>
+
+#endif
+
+#define __CLC_FUNCTION __CLC_XCONCAT(native_, __CLC_NATIVE_INTRINSIC)
+
+_CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE __CLC_FUNCTION(__CLC_GENTYPE val) {
+  return __CLC_XCONCAT(__clc_native_, __CLC_NATIVE_INTRINSIC)(val);
 }
+
+#undef __CLC_FUNCTION
-- 
2.7.4