diff options
Diffstat (limited to 'gcc/expr.c')
| -rwxr-xr-x | gcc/expr.c | 90 |
1 files changed, 6 insertions, 84 deletions
@@ -49,13 +49,6 @@ Boston, MA 02111-1307, USA. */ They should if the stack and args grow in opposite directions, but only if we have push insns. */ -#ifdef PUSH_ROUNDING - -#if defined (STACK_GROWS_DOWNWARD) != defined (ARGS_GROW_DOWNWARD) -#define PUSH_ARGS_REVERSED /* If it's last to first */ -#endif - -#endif #ifndef STACK_PUSH_CODE #ifdef STACK_GROWS_DOWNWARD @@ -2663,16 +2656,6 @@ emit_move_insn_1 (x, y) { rtx last_insn = 0; -#ifdef PUSH_ROUNDING - - /* If X is a push on the stack, do the push now and replace - X with a reference to the stack pointer. */ - if (push_operand (x, GET_MODE (x))) - { - anti_adjust_stack (GEN_INT (GET_MODE_SIZE (GET_MODE (x)))); - x = change_address (x, VOIDmode, stack_pointer_rtx); - } -#endif /* Show the output dies here. This is necessary for pseudos; hard regs shouldn't appear here except as return values. @@ -2889,56 +2872,6 @@ emit_push_insn (x, mode, type, size, align, partial, reg, extra, by setting SKIP to 0. */ skip = (reg_parm_stack_space == 0) ? 0 : used; -#ifdef PUSH_ROUNDING - /* Do it with several push insns if that doesn't take lots of insns - and if there is no difficulty with push insns that skip bytes - on the stack for alignment purposes. */ - if (args_addr == 0 - && GET_CODE (size) == CONST_INT - && skip == 0 - && (MOVE_BY_PIECES_P ((unsigned) INTVAL (size) - used, align)) - /* Here we avoid the case of a structure whose weak alignment - forces many pushes of a small amount of data, - and such small pushes do rounding that causes trouble. */ - && ((! SLOW_UNALIGNED_ACCESS) - || align >= BIGGEST_ALIGNMENT / BITS_PER_UNIT - || PUSH_ROUNDING (align) == align) - && PUSH_ROUNDING (INTVAL (size)) == INTVAL (size)) - { - /* Push padding now if padding above and stack grows down, - or if padding below and stack grows up. - But if space already allocated, this has already been done. */ - if (extra && args_addr == 0 - && where_pad != none && where_pad != stack_direction) - anti_adjust_stack (GEN_INT (extra)); - - move_by_pieces (gen_rtx_MEM (BLKmode, gen_push_operand ()), xinner, - INTVAL (size) - used, align); - - if (current_function_check_memory_usage && ! in_check_memory_usage) - { - rtx temp; - - in_check_memory_usage = 1; - temp = get_push_address (INTVAL(size) - used); - if (GET_CODE (x) == MEM && type && AGGREGATE_TYPE_P (type)) - emit_library_call (chkr_copy_bitmap_libfunc, 1, VOIDmode, 3, - temp, ptr_mode, - XEXP (xinner, 0), ptr_mode, - GEN_INT (INTVAL(size) - used), - TYPE_MODE (sizetype)); - else - emit_library_call (chkr_set_right_libfunc, 1, VOIDmode, 3, - temp, ptr_mode, - GEN_INT (INTVAL(size) - used), - TYPE_MODE (sizetype), - GEN_INT (MEMORY_USE_RW), - TYPE_MODE (integer_type_node)); - in_check_memory_usage = 0; - } - } - else -#endif /* PUSH_ROUNDING */ { /* Otherwise make space on the stack and copy the data to the address of that space. */ @@ -3143,11 +3076,6 @@ emit_push_insn (x, mode, type, size, align, partial, reg, extra, && where_pad != none && where_pad != stack_direction) anti_adjust_stack (GEN_INT (extra)); -#ifdef PUSH_ROUNDING - if (args_addr == 0) - addr = gen_push_operand (); - else -#endif { if (GET_CODE (args_so_far) == CONST_INT) addr @@ -4092,7 +4020,6 @@ store_constructor (exp, target, cleared) RTX_UNCHANGING_P (to_rtx) = 1; } -#ifdef WORD_REGISTER_OPERATIONS /* If this initializes a field that is smaller than a word, at the start of a word, try to widen it to a full word. This special case allows us to output C++ member function @@ -4119,7 +4046,6 @@ store_constructor (exp, target, cleared) bitsize = BITS_PER_WORD; mode = word_mode; } -#endif store_constructor_field (to_rtx, bitsize, bitpos, mode, value, type, cleared); } @@ -8410,7 +8336,7 @@ expand_builtin_setjmp (buf_addr, target, first_label, next_label) /* Clobber the FP when we get here, so we have to make sure it's marked as used by this function. */ - emit_insn (gen_rtx_USE (VOIDmode, hard_frame_pointer_rtx)); + emit_insn (gen_rtx_USE (VOIDmode, frame_pointer_rtx)); /* Mark the static chain as clobbered here so life information doesn't get messed up for it. */ @@ -8422,22 +8348,19 @@ expand_builtin_setjmp (buf_addr, target, first_label, next_label) #ifdef HAVE_nonlocal_goto if (! HAVE_nonlocal_goto) #endif - emit_move_insn (virtual_stack_vars_rtx, hard_frame_pointer_rtx); + emit_move_insn (virtual_stack_vars_rtx, frame_pointer_rtx); -#if ARG_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM if (fixed_regs[ARG_POINTER_REGNUM]) { -#ifdef ELIMINABLE_REGS size_t i; static struct elims {int from, to;} elim_regs[] = ELIMINABLE_REGS; for (i = 0; i < sizeof elim_regs / sizeof elim_regs[0]; i++) if (elim_regs[i].from == ARG_POINTER_REGNUM - && elim_regs[i].to == HARD_FRAME_POINTER_REGNUM) + && elim_regs[i].to == FRAME_POINTER_REGNUM) break; if (i == sizeof elim_regs / sizeof elim_regs [0]) -#endif { /* Now restore our arg pointer from the address at which it was saved in our stack frame. @@ -8450,7 +8373,6 @@ expand_builtin_setjmp (buf_addr, target, first_label, next_label) copy_to_reg (arg_pointer_save_area)); } } -#endif #ifdef HAVE_builtin_setjmp_receiver if (HAVE_builtin_setjmp_receiver) @@ -8520,10 +8442,10 @@ expand_builtin_longjmp (buf_addr, value) { lab = copy_to_reg (lab); - emit_move_insn (hard_frame_pointer_rtx, fp); + emit_move_insn (frame_pointer_rtx, fp); emit_stack_restore (SAVE_NONLOCAL, stack, NULL_RTX); - emit_insn (gen_rtx_USE (VOIDmode, hard_frame_pointer_rtx)); + emit_insn (gen_rtx_USE (VOIDmode, frame_pointer_rtx)); emit_insn (gen_rtx_USE (VOIDmode, stack_pointer_rtx)); emit_indirect_jump (lab); } @@ -9059,7 +8981,7 @@ expand_builtin (exp, target, subtarget, mode, ignore) { rtx tem = expand_builtin_return_addr (DECL_FUNCTION_CODE (fndecl), TREE_INT_CST_LOW (TREE_VALUE (arglist)), - hard_frame_pointer_rtx); + frame_pointer_rtx); /* Some ports cannot access arbitrary stack frames. */ if (tem == NULL) |