[Bug sanitizer/85663] New: gcc-8.0.1 regression: sanitizer fails to build on mips-unknown-linux-gnu

["slyfox at inbox dot ru" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85663

            Bug ID: 85663
           Summary: gcc-8.0.1 regression: sanitizer fails to build on
                    mips-unknown-linux-gnu
           Product: gcc
           Version: 8.0.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: sanitizer
          Assignee: unassigned at gcc dot gnu.org
          Reporter: slyfox at inbox dot ru
                CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
                    jakub at gcc dot gnu.org, kcc at gcc dot gnu.org, marxin at gcc dot gnu.org
  Target Milestone: ---

In file included from
/tmp/portage/cross-mips-unknown-linux-gnu/gcc-8.1.0-r1/work/gcc-8.1.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cc:20:
/tmp/portage/cross-mips-unknown-linux-gnu/gcc-8.1.0-r1/work/gcc-8.1.0/libsanitizer/sanitizer_common/sanitizer_internal_defs.h:317:72:
error: size of array ‘assertion_failed__71’ is negative
     typedef char IMPL_PASTE(assertion_failed_##_, line)[2*(int)(pred)-1]
                                                                        ^
/tmp/portage/cross-mips-unknown-linux-gnu/gcc-8.1.0-r1/work/gcc-8.1.0/libsanitizer/sanitizer_common/sanitizer_internal_defs.h:311:30:
note: in expansion of macro ‘IMPL_COMPILER_ASSERT’
 #define COMPILER_CHECK(pred) IMPL_COMPILER_ASSERT(pred, __LINE__)
                              ^~~~~~~~~~~~~~~~~~~~
/tmp/portage/cross-mips-unknown-linux-gnu/gcc-8.1.0-r1/work/gcc-8.1.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cc:71:1:
note: in expansion of macro ‘COMPILER_CHECK’
 COMPILER_CHECK(struct_kernel_stat_sz == sizeof(struct stat));
 ^~~~~~~~~~~~~~

I think it is caused by this patch:

https://github.com/gcc-mirror/gcc/commit/36093749ff955d9e8cf208b04724c3a1a2ac9b04

libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h

 #elif defined(__mips__)
   const unsigned struct_kernel_stat_sz =
                  SANITIZER_ANDROID ? FIRST_32_SECOND_64(104, 128) :
-                                     FIRST_32_SECOND_64(144, 216);
+                                     FIRST_32_SECOND_64(160, 216);