Hi,
the following testcase illustrate problem with the offset. Sadly it ICEs even
w/o
LTO:
evans:/abuild/jh/trunk-3/build-inst12/gcc/:[1]# ./xgcc -B ./ -O2 ~/tt.c
/root/tt.c: In function 'main':
/root/tt.c:24:11: warning: overflow in implicit constant conversion [-Woverflow]
b.b=0xdead;
^
/root/tt.c:25:12: internal compiler error: in assign_stack_temp_for_type, at
function.c:762
a=retframe_block ();
^
0x7ae808 assign_stack_temp_for_type(machine_mode, long, tree_node*)
../../gcc/function.c:762
/* { dg-do run } */
extern void abort (void);
int
main (int argc, char **argv)
{
int size = 10;
typedef struct
{
char val[size];
char b;
}
block;
block a, b;
block __attribute__((noinline))
retframe_block ()
{
if (b.b != 0xdead)
abort ();
return *(block *) &b;
}
b.val[0] = 1;
b.val[9] = 2;
b.b=0xdead;
a=retframe_block ();
if (a.val[0] != 1
|| a.val[9] != 2)
abort ();
return 0;
}
Honza
