[llvm-commits] [compiler-rt] r172613 - /compiler-rt/trunk/lib/sanitizer_common/sanitizer_internal_defs.h

[Dmitry Vyukov]

Author: dvyukov
Date: Wed Jan 16 08:35:13 2013
New Revision: 172613

URL: http://llvm.org/viewvc/llvm-project?rev=172613&view=rev
Log:
asan: fix ARM build

Modified:
    compiler-rt/trunk/lib/sanitizer_common/sanitizer_internal_defs.h

Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_internal_defs.h
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_internal_defs.h?rev=172613&r1=172612&r2=172613&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_internal_defs.h (original)
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_internal_defs.h Wed Jan 16 08:35:13 2013
@@ -52,7 +52,12 @@
 # define UNLIKELY(x)   __builtin_expect(!!(x), 0)
 # define UNUSED __attribute__((unused))
 # define USED __attribute__((used))
-# define PREFETCH(x) __asm__("prefetchnta (%0)" : : "r" (x))
+# if defined(__i386__) || defined(__x86_64__)
+// __builtin_prefetch(x) generates prefetchnt0 on x86
+#  define PREFETCH(x) __asm__("prefetchnta (%0)" : : "r" (x))
+# else
+#  define PREFETCH(x) __builtin_prefetch(x)
+# endif
 #endif  // _MSC_VER
 
 #if defined(_WIN32)