[Bug sanitizer/60557] New: UBSAN: ICE after ubsan_expand_null_ifn

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60557

            Bug ID: 60557
           Summary: UBSAN: ICE after ubsan_expand_null_ifn
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: sanitizer
          Assignee: unassigned at gcc dot gnu.org
          Reporter: burnus at gcc dot gnu.org
                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,
                    mpolacek at gcc dot gnu.org

Compiling the following syntactically valid program ICEs with UBSAN:

$ gfortran -fsanitize=undefined bar.f90
bar.f90: In function 'ribm':
bar.f90:15:0: internal compiler error: Segmentation fault
   subroutine ribm(rndm,ial)
 ^
0xa0d9af crash_signal
        ../../gcc/toplev.c:337
0x836ba4 gimple_build_call(tree_node*, unsigned int, ...)
        ../../gcc/gimple.c:249
0xa2a1b8 ubsan_expand_null_ifn(gimple_stmt_iterator)
        ../../gcc/ubsan.c:590
0xa1dc27 execute_sanopt
        ../../gcc/asan.c:2587