[Bug fortran/104430] [10 Regression] ICE in gfc_conv_component_ref, at fortran/trans-expr.cc:2742 since r9-3522-gd0477233215e37de

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104430

--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The ICE for comment 7 looks a little different, so a new test does seem
worthwhile:

Bad:  539 /home/remote/jwakely/gcc-bisect-objs/f951.r12-7525
ice.f90:7:30:

    7 |     forall( iix=1:4, iiy=1:4 )
      |                              1
internal compiler error: Segmentation fault
0x1459b77 crash_signal
        ../../gcc/toplev.cc:322
0xf22b21 split_tree
        ../../gcc/fold-const.cc:815
0xf5139c fold_binary_loc(unsigned int, tree_code, tree_node*, tree_node*,
tree_node*)
        ../../gcc/fold-const.cc:11269
0xf5d559 fold_build2_loc(unsigned int, tree_code, tree_node*, tree_node*,
tree_node*)
        ../../gcc/fold-const.cc:13814
0xc21e73 gfc_conv_expr_op
        ../../gcc/fortran/trans-expr.cc:3921
0xc35f01 gfc_conv_expr(gfc_se*, gfc_expr*)
        ../../gcc/fortran/trans-expr.cc:9394
0xc36049 gfc_conv_expr_val(gfc_se*, gfc_expr*)
        ../../gcc/fortran/trans-expr.cc:9451
0xc3f8bf gfc_conv_intrinsic_function_args
        ../../gcc/fortran/trans-intrinsic.cc:237
0xc3face gfc_conv_intrinsic_conversion
        ../../gcc/fortran/trans-intrinsic.cc:295
0xc60a8b gfc_conv_intrinsic_function(gfc_se*, gfc_expr*)
        ../../gcc/fortran/trans-intrinsic.cc:10288
0xc32027 gfc_conv_function_expr
        ../../gcc/fortran/trans-expr.cc:8258
0xc35f19 gfc_conv_expr(gfc_se*, gfc_expr*)
        ../../gcc/fortran/trans-expr.cc:9398
0xc3d718 gfc_trans_assignment_1
        ../../gcc/fortran/trans-expr.cc:11686
0xc3ead6 gfc_trans_assignment(gfc_expr*, gfc_expr*, bool, bool, bool, bool)
        ../../gcc/fortran/trans-expr.cc:12077
0xca2aab gfc_trans_forall_1
        ../../gcc/fortran/trans-stmt.cc:5192
0xca2eb6 gfc_trans_forall(gfc_code*)
        ../../gcc/fortran/trans-stmt.cc:5298
0xbca74c trans_code
        ../../gcc/fortran/trans.cc:2064
0xbcaa4e gfc_trans_code(gfc_code*)
        ../../gcc/fortran/trans.cc:2268
0xc9b362 gfc_trans_block_construct(gfc_code*)
        ../../gcc/fortran/trans-stmt.cc:2314
0xbca631 trans_code
        ../../gcc/fortran/trans.cc:2012
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