GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
static HARD_REG_SET pending_dead_regs;
\f
-static void update_live_status (rtx, rtx, void *);
+static void update_live_status (rtx, const_rtx, void *);
static int find_basic_block (rtx, int);
static rtx next_insn_no_annul (rtx);
static rtx find_dead_or_set_registers (rtx, struct resources*,
It deadens any CLOBBERed registers and livens any SET registers. */
static void
-update_live_status (rtx dest, rtx x, void *data ATTRIBUTE_UNUSED)
+update_live_status (rtx dest, const_rtx x, void *data ATTRIBUTE_UNUSED)
{
int first_regno, last_regno;
int i;
case CONST:
case CONST_INT:
case CONST_DOUBLE:
+ case CONST_FIXED:
case CONST_VECTOR:
case PC:
case SYMBOL_REF:
return;
case UNSPEC_VOLATILE:
+ case TRAP_IF:
case ASM_INPUT:
/* Traditional asm's are always volatile. */
res->volatil = 1;
- return;
-
- case TRAP_IF:
- res->volatil = 1;
break;
case ASM_OPERANDS:
case USE:
case CONST_INT:
case CONST_DOUBLE:
+ case CONST_FIXED:
case CONST_VECTOR:
case LABEL_REF:
case SYMBOL_REF:
rtx link;
res->cc = res->memory = 1;
- for (r = 0; r < FIRST_PSEUDO_REGISTER; r++)
- if (call_used_regs[r] || global_regs[r])
- SET_HARD_REG_BIT (res->regs, r);
+
+ IOR_HARD_REG_SET (res->regs, regs_invalidated_by_call);
for (link = CALL_INSN_FUNCTION_USAGE (x);
link; link = XEXP (link, 1))
/* Return TRUE if INSN is a return, possibly with a filled delay slot. */
static bool
-return_insn_p (rtx insn)
+return_insn_p (const_rtx insn)
{
if (JUMP_P (insn) && GET_CODE (PATTERN (insn)) == RETURN)
return true;
TARGET. Otherwise, we must assume everything is live. */
if (b != -1)
{
- regset regs_live = df_get_live_in (BASIC_BLOCK (b));
+ regset regs_live = DF_LR_IN (BASIC_BLOCK (b));
rtx start_insn, stop_insn;
- reg_set_iterator rsi;
/* Compute hard regs live at start of block -- this is the real hard regs
marked live, plus live pseudo regs that have been renumbered to
REG_SET_TO_HARD_REG_SET (current_live_regs, regs_live);
- EXECUTE_IF_SET_IN_REG_SET (regs_live, FIRST_PSEUDO_REGISTER, i, rsi)
- {
- if (reg_renumber[i] >= 0)
- add_to_hard_reg_set (¤t_live_regs, PSEUDO_REGNO_MODE (i),
- reg_renumber[i]);
- }
-
/* Get starting and ending insn, handling the case where each might
be a SEQUENCE. */
start_insn = (b == ENTRY_BLOCK_PTR->next_bb->index ?
else
SET_HARD_REG_BIT (end_of_function_needs.regs, STACK_POINTER_REGNUM);
- if (current_function_return_rtx != 0)
- mark_referenced_resources (current_function_return_rtx,
+ if (crtl->return_rtx != 0)
+ mark_referenced_resources (crtl->return_rtx,
&end_of_function_needs, 1);
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)