This appears to be present in compiler-rt upstream, but as part of more intrusive changes.

This appears to be present in compiler-rt upstream, but as part
of more intrusive changes.  For gcc, the lack of this results in
a fatal warning (-Werror) at build-time.

	* sanitizer_common/sanitizer_atomic_clang_other.h [_MIPS_SIM
	&& _MIPS_SIM == _ABIO32] (lock): Add initializer for .pad member.

From-SVN: r259663

libsanitizer/ChangeLog

+2018-04-26  Hans-Peter Nilsson  <hp@axis.com>
+
+	* sanitizer_common/sanitizer_atomic_clang_other.h [_MIPS_SIM
+	&& _MIPS_SIM == _ABIO32] (lock): Add initializer for .pad member.
+
 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* configure: Regenerated.

libsanitizer/sanitizer_common/sanitizer_atomic_clang_other.h

@@ -35,7 +35,7 @@ static void __spin_unlock(volatile int *lock) { __sync_lock_release(lock); }
 static struct {
   int lock;
   char pad[32 - sizeof(int)];
-} __attribute__((aligned(32))) lock = {0};
+} __attribute__((aligned(32))) lock = {0, {0}};
 
 template <class T>
 T __mips_sync_fetch_and_add(volatile T *ptr, T val) {