diff options
Diffstat (limited to 'gcc/config/m68k/m68k.c')
| -rw-r--r-- | gcc/config/m68k/m68k.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/config/m68k/m68k.c b/gcc/config/m68k/m68k.c index 1027d1c..033872c 100644 --- a/gcc/config/m68k/m68k.c +++ b/gcc/config/m68k/m68k.c @@ -132,6 +132,7 @@ static void m68k_sched_dfa_pre_advance_cycle (void); static void m68k_sched_dfa_post_advance_cycle (void); static int m68k_sched_first_cycle_multipass_dfa_lookahead (void); +static bool m68k_can_eliminate (const int, const int); static bool m68k_legitimate_address_p (enum machine_mode, rtx, bool); static bool m68k_handle_option (size_t, const char *, int); static rtx find_addr_reg (rtx); @@ -263,6 +264,9 @@ const char *m68k_library_id_string = "_current_shared_library_a5_offset_"; #undef TARGET_LEGITIMATE_ADDRESS_P #define TARGET_LEGITIMATE_ADDRESS_P m68k_legitimate_address_p +#undef TARGET_CAN_ELIMINATE +#define TARGET_CAN_ELIMINATE m68k_can_eliminate + static const struct attribute_spec m68k_attribute_table[] = { /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ @@ -866,6 +870,14 @@ m68k_compute_frame_layout (void) current_frame.funcdef_no = current_function_funcdef_no; } +/* Worker function for TARGET_CAN_ELIMINATE. */ + +bool +m68k_can_eliminate (const int from ATTRIBUTE_UNUSED, const int to) +{ + return (to == STACK_POINTER_REGNUM ? ! frame_pointer_needed : true); +} + HOST_WIDE_INT m68k_initial_elimination_offset (int from, int to) { |