commit a04026232ea2b65e9adb7bdd608f461b5fff41b3
author Kuba Mracek <mracek@apple.com> Fri Apr 21 22:58:55 2017 +0000
committer Kuba Mracek <mracek@apple.com> Fri Apr 21 22:58:55 2017 +0000
tree be7abfd3ec3ec739831500140fe106c8547aba5d
parent d78597ec08b9f8ebc7b9ea6627815b05647ec86d

Fixup for r301054: Only use __attribute__((no_sanitize("memory"))) when it's available.

llvm-svn: 301058

llvm/lib/Fuzzer/FuzzerDefs.h

diff --git a/llvm/lib/Fuzzer/FuzzerDefs.h b/llvm/lib/Fuzzer/FuzzerDefs.h
index 939b92f..27f5719 100644
--- a/llvm/lib/Fuzzer/FuzzerDefs.h
+++ b/llvm/lib/Fuzzer/FuzzerDefs.h
@@ -54,7 +54,11 @@
 
 
 #ifdef __clang__  // avoid gcc warning.
-#  define ATTRIBUTE_NO_SANITIZE_MEMORY __attribute__((no_sanitize("memory")))
+#  if __has_attribute(no_sanitize)
+#    define ATTRIBUTE_NO_SANITIZE_MEMORY __attribute__((no_sanitize("memory")))
+#  else
+#    define ATTRIBUTE_NO_SANITIZE_MEMORY
+#  endif
 #  define ALWAYS_INLINE __attribute__((always_inline))
 #else
 #  define ATTRIBUTE_NO_SANITIZE_MEMORY