diff options
Diffstat (limited to 'gcc/function.c')
| -rw-r--r-- | gcc/function.c | 53 |
1 files changed, 2 insertions, 51 deletions
diff --git a/gcc/function.c b/gcc/function.c index 941021e..9e36af7 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -2894,22 +2894,9 @@ assign_parms (tree fndecl) { struct assign_parm_data_all all; tree fnargs, parm; - rtx internal_arg_pointer; - /* If the reg that the virtual arg pointer will be translated into is - not a fixed reg or is the stack pointer, make a copy of the virtual - arg pointer, and address parms via the copy. The frame pointer is - considered fixed even though it is not marked as such. - - The second time through, simply use ap to avoid generating rtx. */ - - if ((ARG_POINTER_REGNUM == STACK_POINTER_REGNUM - || ! (fixed_regs[ARG_POINTER_REGNUM] - || ARG_POINTER_REGNUM == FRAME_POINTER_REGNUM))) - internal_arg_pointer = copy_to_reg (virtual_incoming_args_rtx); - else - internal_arg_pointer = virtual_incoming_args_rtx; - current_function_internal_arg_pointer = internal_arg_pointer; + current_function_internal_arg_pointer + = targetm.calls.internal_arg_pointer (); assign_parms_initialize_all (&all); fnargs = assign_parms_augmented_arg_list (&all); @@ -3916,42 +3903,6 @@ struct tree_opt_pass pass_init_function = void expand_main_function (void) { -#ifdef FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN - if (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN) - { - int align = PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT; - rtx tmp, seq; - - start_sequence (); - /* Forcibly align the stack. */ -#ifdef STACK_GROWS_DOWNWARD - tmp = expand_simple_binop (Pmode, AND, stack_pointer_rtx, GEN_INT(-align), - stack_pointer_rtx, 1, OPTAB_WIDEN); -#else - tmp = expand_simple_binop (Pmode, PLUS, stack_pointer_rtx, - GEN_INT (align - 1), NULL_RTX, 1, OPTAB_WIDEN); - tmp = expand_simple_binop (Pmode, AND, tmp, GEN_INT (-align), - stack_pointer_rtx, 1, OPTAB_WIDEN); -#endif - if (tmp != stack_pointer_rtx) - emit_move_insn (stack_pointer_rtx, tmp); - - /* Enlist allocate_dynamic_stack_space to pick up the pieces. */ - tmp = force_reg (Pmode, const0_rtx); - allocate_dynamic_stack_space (tmp, NULL_RTX, BIGGEST_ALIGNMENT); - seq = get_insns (); - end_sequence (); - - for (tmp = get_last_insn (); tmp; tmp = PREV_INSN (tmp)) - if (NOTE_P (tmp) && NOTE_LINE_NUMBER (tmp) == NOTE_INSN_FUNCTION_BEG) - break; - if (tmp) - emit_insn_before (seq, tmp); - else - emit_insn (seq); - } -#endif - #if (defined(INVOKE__main) \ || (!defined(HAS_INIT_SECTION) \ && !defined(INIT_SECTION_ASM_OP) \ |