* java/util/zip/ZipEntry.java (setCompressedSize): Allow any

[pf3gnuchains/gcc-fork.git] / gcc / loop.c

diff --git a/gcc/loop.c b/gcc/loop.c
index 08b8529..7a446ea 100644 (file)
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -1,6 +1,7 @@
 /* Perform various loop optimizations, including strength reduction.
-   Copyright (C) 1987, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
-   1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 1987, 1988, 1989, 1991, 1992, 1993, 1994, 1995,
+   1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+   Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -1119,6 +1120,9 @@ scan_loop (struct loop *loop, int flags)
        in_libcall--;
       if (NONJUMP_INSN_P (p))
        {
+         /* Do not scan past an optimization barrier.  */
+         if (GET_CODE (PATTERN (p)) == ASM_INPUT)
+           break;
          temp = find_reg_note (p, REG_LIBCALL, NULL_RTX);
          if (temp)
            in_libcall++;
@@ -4113,7 +4117,7 @@ emit_prefetch_instructions (struct loop *loop)
   struct prefetch_info info[MAX_PREFETCHES];
   struct loop_ivs *ivs = LOOP_IVS (loop);
 
-  if (!HAVE_prefetch)
+  if (!HAVE_prefetch || PREFETCH_BLOCK == 0)
     return;
 
   /* Consider only loops w/o calls.  When a call is done, the loop is probably
@@ -9202,7 +9206,9 @@ product_cheap_p (rtx a, rtx b)
   end_sequence ();
 
   win = 1;
-  if (INSN_P (tmp))
+  if (tmp == NULL_RTX)
+    ;
+  else if (INSN_P (tmp))
     {
       n_insns = 0;
       while (tmp != NULL_RTX)
@@ -10929,7 +10935,7 @@ load_mems (const struct loop *loop)
          cselib_val *e = cselib_lookup (mem, VOIDmode, 0);
          rtx set;
          rtx best = mem;
-         int j;
+         unsigned j;
          struct elt_loc_list *const_equiv = 0;
          reg_set_iterator rsi;