[Bug sanitizer/79993] New: ICE in tree_to_uhwi, at tree.c:7344

["marxin at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79993

            Bug ID: 79993
           Summary: ICE in tree_to_uhwi, at tree.c:7344
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: sanitizer
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin 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
  Target Milestone: ---

Starting from 4.9 we ICE on:

./xgcc -B. /home/marxin/Programming/gcc/gcc/testsuite/g++.dg/opt/pr78201.C -c
-fsanitize=address
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/opt/pr78201.C:13:1: internal
compiler error: in tree_to_uhwi, at tree.c:7344
 }
 ^
0x150f970 tree_to_uhwi(tree_node const*)
        ../../gcc/tree.c:7344
0x11c1818 asan_add_global
        ../../gcc/asan.c:2422
0x11c56ee add_string_csts(constant_descriptor_tree**,
asan_add_string_csts_data*)
        ../../gcc/asan.c:2637
0x11c7f26 void hash_table<tree_descriptor_hasher,
xcallocator>::traverse<asan_add_string_csts_data*,
&(add_string_csts(constant_descriptor_tree**,
asan_add_string_csts_data*))>(asan_add_string_csts_data*)
        ../../gcc/hash-table.h:987
0x11c5a7d asan_finish_file()
        ../../gcc/asan.c:2709