[Bug c/87927] New: ICE: segmentation fault with patchable_function_entry attribute for msp430-elf -mlarge

["jozef.l at mittosystems dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87927

            Bug ID: 87927
           Summary: ICE: segmentation fault with patchable_function_entry
                    attribute for msp430-elf -mlarge
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jozef.l at mittosystems dot com
  Target Milestone: ---

Use of the patchable_function_entry attribute with msp430-elf in the large
memory model causes a segfault on trunk.

For example in c-c++-common/patchable_function_entry-decl.c:

> extern int a;
> 
> int f3 (void) __attribute__((patchable_function_entry(2)));
> 
> int
> __attribute__((noinline))
> f3 (void)
> {
>   return 5*a;
> }

> gcc -mlarge -fpatchable-function-entry=3,1 -S gcc/testsuite/c-c++-common/patchable_function_entry-decl.c

> gcc/testsuite/c-c++-common/patchable_function_entry-decl.c: In function 'f3':
> gcc/testsuite/c-c++-common/patchable_function_entry-decl.c:18:1: internal compiler error: Segmentation fault
> 0xb5e4af crash_signal
>       ../../gcc/toplev.c:325
> 0xb59d41 default_print_patchable_function_entry(_IO_FILE*, unsigned long, bool)
>       ../../gcc/targhooks.c:1816
> 0xe94d2c assemble_start_function(tree_node*, char const*)
>       ../../gcc/varasm.c:1903
> 0x84188f rest_of_handle_final
>       ../../gcc/final.c:4645
> 0x84188f execute
>       ../../gcc/final.c:4723