commit 0165437302448d210742cc3def362d1de0413621
author Richard Henderson <rth@twiddle.net> Wed Feb 13 17:47:34 2013 -0800
committer Blue Swirl <blauwirbel@gmail.com> Sat Feb 16 11:09:05 2013 +0000
tree 121ccfde5426fe56c88b2e26144e8261d4e0fd05
parent 38dad9e574746981dfbac52b3bbbd6d894f31d26

host-utils: Add host long specific aliases for clz, ctz, ctpop

We will standardize on these names, rather than the similar routines
currently residing in qemu/bitops.h.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

include/qemu/host-utils.h

diff --git a/include/qemu/host-utils.h b/include/qemu/host-utils.h
index 81c9a75..d72b72d 100644
--- a/include/qemu/host-utils.h
+++ b/include/qemu/host-utils.h
@@ -26,6 +26,7 @@
 #define HOST_UTILS_H 1
 
 #include "qemu/compiler.h"   /* QEMU_GNUC_PREREQ */
+#include <limits.h>
 
 #if defined(__x86_64__)
 #define __HAVE_FAST_MULU64__
@@ -237,4 +238,22 @@
 #endif
 }
 
+/* Host type specific sizes of these routines.  */
+
+#if ULONG_MAX == UINT32_MAX
+# define clzl   clz32
+# define ctzl   ctz32
+# define clol   clo32
+# define ctol   cto32
+# define ctpopl ctpop32
+#elif ULONG_MAX == UINT64_MAX
+# define clzl   clz64
+# define ctzl   ctz64
+# define clol   clo64
+# define ctol   cto64
+# define ctpopl ctpop64
+#else
+# error Unknown sizeof long
+#endif
+
 #endif