[gcc/ChangeLog]

[pf3gnuchains/gcc-fork.git] / gcc / local-alloc.c

diff --git a/gcc/local-alloc.c b/gcc/local-alloc.c
index f3caba4..d71acab 100644 (file)
--- a/gcc/local-alloc.c
+++ b/gcc/local-alloc.c
@@ -1,6 +1,6 @@
 /* Allocate registers within a basic block, for GNU compiler.
    Copyright (C) 1987, 1988, 1991, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+   1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -538,7 +538,7 @@ equiv_init_varies_p (rtx x)
       if (MEM_VOLATILE_P (x))
        return 1;
 
-      /* FALLTHROUGH */
+      /* Fall through.  */
 
     default:
       break;
@@ -603,7 +603,7 @@ equiv_init_movable_p (rtx x, int regno)
       if (MEM_VOLATILE_P (x))
        return 0;
 
-      /* FALLTHROUGH */
+      /* Fall through.  */
 
     default:
       break;
@@ -1392,9 +1392,7 @@ block_alloc (int b)
 
              /* Here we care if the operation to be computed is
                 commutative.  */
-             else if ((GET_CODE (XEXP (note, 0)) == EQ
-                       || GET_CODE (XEXP (note, 0)) == NE
-                       || GET_RTX_CLASS (GET_CODE (XEXP (note, 0))) == 'c')
+             else if (COMMUTATIVE_P (XEXP (note, 0))
                       && (r1 = XEXP (XEXP (note, 0), 1),
                           (GET_CODE (r1) == REG || GET_CODE (r1) == SUBREG))
                       && no_conflict_p (insn, r0, r1))
@@ -1799,7 +1797,7 @@ combine_regs (rtx usedreg, rtx setreg, int may_save_copy, int insn_number,
 
   ureg = REGNO (usedreg);
   if (ureg < FIRST_PSEUDO_REGISTER)
-    usize = HARD_REGNO_NREGS (ureg, GET_MODE (usedreg));
+    usize = hard_regno_nregs[ureg][GET_MODE (usedreg)];
   else
     usize = ((GET_MODE_SIZE (GET_MODE (usedreg))
              + (REGMODE_NATURAL_SIZE (GET_MODE (usedreg)) - 1))
@@ -1832,7 +1830,7 @@ combine_regs (rtx usedreg, rtx setreg, int may_save_copy, int insn_number,
 
   sreg = REGNO (setreg);
   if (sreg < FIRST_PSEUDO_REGISTER)
-    ssize = HARD_REGNO_NREGS (sreg, GET_MODE (setreg));
+    ssize = hard_regno_nregs[sreg][GET_MODE (setreg)];
   else
     ssize = ((GET_MODE_SIZE (GET_MODE (setreg))
              + (REGMODE_NATURAL_SIZE (GET_MODE (setreg)) - 1))
@@ -2217,7 +2215,7 @@ find_free_reg (enum reg_class class, enum machine_mode mode, int qtyno,
              || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
        {
          int j;
-         int size1 = HARD_REGNO_NREGS (regno, mode);
+         int size1 = hard_regno_nregs[regno][mode];
          for (j = 1; j < size1 && ! TEST_HARD_REG_BIT (used, regno + j); j++);
          if (j == size1)
            {
@@ -2275,7 +2273,7 @@ find_free_reg (enum reg_class class, enum machine_mode mode, int qtyno,
 static void
 mark_life (int regno, enum machine_mode mode, int life)
 {
-  int j = HARD_REGNO_NREGS (regno, mode);
+  int j = hard_regno_nregs[regno][mode];
   if (life)
     while (--j >= 0)
       SET_HARD_REG_BIT (regs_live, regno + j);
@@ -2292,7 +2290,7 @@ static void
 post_mark_life (int regno, enum machine_mode mode, int life, int birth,
                int death)
 {
-  int j = HARD_REGNO_NREGS (regno, mode);
+  int j = hard_regno_nregs[regno][mode];
   HARD_REG_SET this_reg;
 
   CLEAR_HARD_REG_SET (this_reg);
@@ -2412,7 +2410,7 @@ requires_inout (const char *p)
          if (REG_CLASS_FROM_CONSTRAINT (c, p) == NO_REGS
              && !EXTRA_ADDRESS_CONSTRAINT (c, p))
            break;
-         /* FALLTHRU */
+         /* Fall through.  */
        case 'p':
        case 'g': case 'r':
          reg_allowed = 1;