Use a better test for __int128 support, which works on old GCC versions.

llvm-svn: 165912

diff --git a/compiler-rt/lib/ubsan/ubsan_value.h b/compiler-rt/lib/ubsan/ubsan_value.h
index e92b2d6..a855791 100644 (file)
--- a/compiler-rt/lib/ubsan/ubsan_value.h
+++ b/compiler-rt/lib/ubsan/ubsan_value.h
@@ -23,7 +23,7 @@
 #include "sanitizer_common/sanitizer_common.h"
 
 // FIXME: Move this out to a config header.
-#if defined(__clang__) || _LP64
+#if defined(__clang__) || __SIZEOF_INT128__
 typedef __int128 s128;
 typedef unsigned __int128 u128;
 #define HAVE_INT128_T 1