[Bug middle-end/79990] New: [CHKP] ICE in expand_expr_addr_expr_1, at expr.c:7790

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79990

            Bug ID: 79990
           Summary: [CHKP] ICE in expand_expr_addr_expr_1, at expr.c:7790
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
  Target Milestone: ---

Starting from GCC 5 (when MPX was introduced), we ICE on:

$ gcc
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/vector-subscript-5.c
-fcheck-pointer-bounds -mmpx
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/vector-subscript-5.c:
In function ‘foo.chkp’:
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/vector-subscript-5.c:6:1:
internal compiler error: in expand_expr_addr_expr_1, at expr.c:7790
 foo (int i)
 ^~~
0x78598d expand_expr_addr_expr_1
        .././../gcc/expr.c:7790
0x77bf8e expand_expr_addr_expr
        .././../gcc/expr.c:7903
0x77bf8e expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        .././../gcc/expr.c:11047
0xc9ea65 expand_normal
        .././../gcc/expr.h:282
0xc9ea65 ix86_expand_builtin
        .././../gcc/config/i386/i386.c:36788
0x67eea9 expand_builtin(tree_node*, rtx_def*, rtx_def*, machine_mode, int)
        .././../gcc/builtins.c:6362
0x77d28e expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        .././../gcc/expr.c:10822
0x785faa store_expr_with_bounds(tree_node*, rtx_def*, int, bool, bool,
tree_node*)
        .././../gcc/expr.c:5552
0x786bbe expand_assignment(tree_node*, tree_node*, bool)
        .././../gcc/expr.c:5321
0x69add5 expand_call_stmt
        .././../gcc/cfgexpand.c:2656
0x69add5 expand_gimple_stmt_1
        .././../gcc/cfgexpand.c:3571
0x69add5 expand_gimple_stmt
        .././../gcc/cfgexpand.c:3737
0x69bf8f expand_gimple_basic_block
        .././../gcc/cfgexpand.c:5744
0x6a0546 execute
        .././../gcc/cfgexpand.c:6357