Sigh, I cleaned out my local patches and now I'm tripping over this again:
if ((code == MINUS_EXPR || code == PLUS_EXPR || code == MULT_EXPR)
&& arg0 && arg1 && tt && POINTER_TYPE_P (tt))
gcc_assert (TREE_CODE (arg0) == INTEGER_CST && TREE_CODE (arg1) ==
INTEGER_CST);
I had locally made that assert use || instead of && as in one case
it's passed a pointer type and an integer type for PLUS_EXPR.
Also, convert_to_integer already knows to expand pointers to the
maybe-next-size-bigger integer before converting them.[ gdb ] up
[ gdb ] call debug_tree(arg0)
<indirect_ref 0xb710a440
type <pointer_type 0xb7f23708
type <pointer_type 0xb7f23640 __vtbl_ptr_type type <function_type
0xb7f235dc>
unsigned PSI
size <integer_cst 0xb7e97498 constant invariant 32>
unit size <integer_cst 0xb7e97214 constant invariant 4>
align 8 symtab 0 alias set 32 canonical type 0xb7f23640
pointer_to_this <pointer_type 0xb7f23708>>
public unsigned PSI size <integer_cst 0xb7e97498 32> unit size
<integer_cst 0xb7e97214 4>
align 8 symtab 0 alias set 4 canonical type 0xb7f23708
pointer_to_this <pointer_type 0xb79208fc>>
arg 0 <nop_expr 0xb710a420
type <pointer_type 0xb79208fc type <pointer_type 0xb7f23708>
unsigned PSI size <integer_cst 0xb7e97498 32> unit size
<integer_cst 0xb7e97214 4>
align 8 symtab 0 alias set -1 canonical type 0xb79208fc>
readonly
arg 0 <non_lvalue_expr 0xb710a400 type <pointer_type 0xb7cf10c8>
readonly arg 0 <parm_decl 0xb71b1b40 this>>>>
[ gdb ] call debug_tree(arg1)
<integer_cst 0xb7917f34 type <integer_type 0xb7e9f898> constant invariant -12>
[ gdb ] where
#0 fancy_abort (file=0x896d90c "../../gcc/gcc/tree.c", line=3107,
function=0x896e57f "build2_stat") at ../../gcc/gcc/diagnostic.c:654
#1 0x087204f7 in build2_stat (code=PLUS_EXPR, tt=0xb7f23708, arg0=0xb710a440,
arg1=0xb7917f34)
at ../../gcc/gcc/tree.c:3107
#2 0x08173836 in thunk_adjust (ptr=0xb710a400, this_adjusting=1 '\001',
fixed_offset=0,
virtual_offset=0xb7917f34) at ../../gcc/gcc/cp/method.c:241
#3 0x08175894 in use_thunk (thunk_fndecl=0xb7438a10, emit_p=1 '\001')
at ../../gcc/gcc/cp/method.c:473
#4 0x0818636d in emit_associated_thunks (fn=0xb7438850) at
../../gcc/gcc/cp/semantics.c:3157
#5 0x08781830 in cgraph_expand_function (node=0xb744cc80) at
../../gcc/gcc/cgraphunit.c:1156
#6 0x087845a7 in cgraph_optimize () at ../../gcc/gcc/cgraphunit.c:1220
#7 0x0810a85d in cp_write_global_declarations () at
../../gcc/gcc/cp/decl2.c:3471
#8 0x0853fc3b in toplev_main (argc=23, argv=0xbf8ecf54) at
../../gcc/gcc/toplev.c:971
#9 0x08228ce2 in main (argc=Cannot access memory at address 0x2d
) at ../../gcc/gcc/main.c:35
