diff options
Diffstat (limited to 'gcc/config/bfin/bfin.c')
| -rw-r--r-- | gcc/config/bfin/bfin.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/gcc/config/bfin/bfin.c b/gcc/config/bfin/bfin.c index 4f213062a4f..61da6db38eb 100644 --- a/gcc/config/bfin/bfin.c +++ b/gcc/config/bfin/bfin.c @@ -883,6 +883,17 @@ n_regs_saved_by_prologue (void) return n; } +/* Given FROM and TO register numbers, say whether this elimination is + allowed. Frame pointer elimination is automatically handled. + + All other eliminations are valid. */ + +static bool +bfin_can_eliminate (const int from ATTRIBUTE_UNUSED, const int to) +{ + return (to == STACK_POINTER_REGNUM ? ! frame_pointer_needed : true); +} + /* Return the offset between two registers, one to be eliminated, and the other its replacement, at the start of a routine. */ @@ -6296,12 +6307,8 @@ bfin_expand_builtin (tree exp, rtx target ATTRIBUTE_UNUSED, #undef TARGET_SCHED_ISSUE_RATE #define TARGET_SCHED_ISSUE_RATE bfin_issue_rate -#undef TARGET_PROMOTE_PROTOTYPES -#define TARGET_PROMOTE_PROTOTYPES hook_bool_const_tree_true -#undef TARGET_PROMOTE_FUNCTION_ARGS -#define TARGET_PROMOTE_FUNCTION_ARGS hook_bool_const_tree_true -#undef TARGET_PROMOTE_FUNCTION_RETURN -#define TARGET_PROMOTE_FUNCTION_RETURN hook_bool_const_tree_true +#undef TARGET_PROMOTE_FUNCTION_MODE +#define TARGET_PROMOTE_FUNCTION_MODE default_promote_function_mode_always_promote #undef TARGET_ARG_PARTIAL_BYTES #define TARGET_ARG_PARTIAL_BYTES bfin_arg_partial_bytes @@ -6342,4 +6349,7 @@ bfin_expand_builtin (tree exp, rtx target ATTRIBUTE_UNUSED, #undef TARGET_FRAME_POINTER_REQUIRED #define TARGET_FRAME_POINTER_REQUIRED bfin_frame_pointer_required +#undef TARGET_CAN_ELIMINATE +#define TARGET_CAN_ELIMINATE bfin_can_eliminate + struct gcc_target targetm = TARGET_INITIALIZER; |