[Bug c/67338] New: fold-const sanitizer runtime error in roundup_loc

["zeccav at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67338

            Bug ID: 67338
           Summary: fold-const sanitizer runtime error  in roundup_loc
           Product: gcc
           Version: 5.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zeccav at gmail dot com
  Target Milestone: ---

Running a sanitized version of gcc 5.2.0 I get the following: 

// ../../gcc-5.2.0/gcc/fold-const.c:16036:8: runtime error: negation of
-2147483648 cannot be represented in type 'int'; cast to an unsigned type to
negate this value to itself
// fold-const.c:16036 "val &= - (int) divisor;"
// int should be wide_int?
// Target: x86_64-unknown-linux-gnu
// COLLECT_GCC_OPTIONS='-mtune=generic' '-march=x86-64'
struct { __attribute__((aligned (1 << 28))) double a; };