1 files changed, 1 insertions, 102 deletions

diff --git a/gcc/libgcc2.c b/gcc/libgcc2.c
index 069aedb..a9d8e68 100644
--- a/gcc/libgcc2.c
+++ b/gcc/libgcc2.c
@@ -1,7 +1,7 @@
 /* More subroutines needed by GCC output code on some machines.  */
 /* Compile this one with gcc.  */
 /* Copyright (C) 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001, 2002  Free Software Foundation, Inc.
+   2000, 2001, 2002, 2003  Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -1436,113 +1436,12 @@ __eprintf (const char *string, const char *expression,
 #ifdef L_clear_cache
 /* Clear part of an instruction cache.  */
 
-#define INSN_CACHE_PLANE_SIZE (INSN_CACHE_SIZE / INSN_CACHE_DEPTH)
-
 void
 __clear_cache (char *beg __attribute__((__unused__)),
 	       char *end __attribute__((__unused__)))
 {
 #ifdef CLEAR_INSN_CACHE
   CLEAR_INSN_CACHE (beg, end);
-#else
-#ifdef INSN_CACHE_SIZE
-  static char array[INSN_CACHE_SIZE + INSN_CACHE_PLANE_SIZE + INSN_CACHE_LINE_WIDTH];
-  static int initialized;
-  int offset;
-  void *start_addr
-  void *end_addr;
-  typedef (*function_ptr) (void);
-
-#if (INSN_CACHE_SIZE / INSN_CACHE_LINE_WIDTH) < 16
-  /* It's cheaper to clear the whole cache.
-     Put in a series of jump instructions so that calling the beginning
-     of the cache will clear the whole thing.  */
-
-  if (! initialized)
-    {
-      int ptr = (((int) array + INSN_CACHE_LINE_WIDTH - 1)
-		 & -INSN_CACHE_LINE_WIDTH);
-      int end_ptr = ptr + INSN_CACHE_SIZE;
-
-      while (ptr < end_ptr)
-	{
-	  *(INSTRUCTION_TYPE *)ptr
-	    = JUMP_AHEAD_INSTRUCTION + INSN_CACHE_LINE_WIDTH;
-	  ptr += INSN_CACHE_LINE_WIDTH;
-	}
-      *(INSTRUCTION_TYPE *) (ptr - INSN_CACHE_LINE_WIDTH) = RETURN_INSTRUCTION;
-
-      initialized = 1;
-    }
-
-  /* Call the beginning of the sequence.  */
-  (((function_ptr) (((int) array + INSN_CACHE_LINE_WIDTH - 1)
-		    & -INSN_CACHE_LINE_WIDTH))
-   ());
-
-#else /* Cache is large.  */
-
-  if (! initialized)
-    {
-      int ptr = (((int) array + INSN_CACHE_LINE_WIDTH - 1)
-		 & -INSN_CACHE_LINE_WIDTH);
-
-      while (ptr < (int) array + sizeof array)
-	{
-	  *(INSTRUCTION_TYPE *)ptr = RETURN_INSTRUCTION;
-	  ptr += INSN_CACHE_LINE_WIDTH;
-	}
-
-      initialized = 1;
-    }
-
-  /* Find the location in array that occupies the same cache line as BEG.  */
-
-  offset = ((int) beg & -INSN_CACHE_LINE_WIDTH) & (INSN_CACHE_PLANE_SIZE - 1);
-  start_addr = (((int) (array + INSN_CACHE_PLANE_SIZE - 1)
-		 & -INSN_CACHE_PLANE_SIZE)
-		+ offset);
-
-  /* Compute the cache alignment of the place to stop clearing.  */
-#if 0  /* This is not needed for gcc's purposes.  */
-  /* If the block to clear is bigger than a cache plane,
-     we clear the entire cache, and OFFSET is already correct.  */
-  if (end < beg + INSN_CACHE_PLANE_SIZE)
-#endif
-    offset = (((int) (end + INSN_CACHE_LINE_WIDTH - 1)
-	       & -INSN_CACHE_LINE_WIDTH)
-	      & (INSN_CACHE_PLANE_SIZE - 1));
-
-#if INSN_CACHE_DEPTH > 1
-  end_addr = (start_addr & -INSN_CACHE_PLANE_SIZE) + offset;
-  if (end_addr <= start_addr)
-    end_addr += INSN_CACHE_PLANE_SIZE;
-
-  for (plane = 0; plane < INSN_CACHE_DEPTH; plane++)
-    {
-      int addr = start_addr + plane * INSN_CACHE_PLANE_SIZE;
-      int stop = end_addr + plane * INSN_CACHE_PLANE_SIZE;
-
-      while (addr != stop)
-	{
-	  /* Call the return instruction at ADDR.  */
-	  ((function_ptr) addr) ();
-
-	  addr += INSN_CACHE_LINE_WIDTH;
-	}
-    }
-#else /* just one plane */
-  do
-    {
-      /* Call the return instruction at START_ADDR.  */
-      ((function_ptr) start_addr) ();
-
-      start_addr += INSN_CACHE_LINE_WIDTH;
-    }
-  while ((start_addr % INSN_CACHE_SIZE) != offset);
-#endif /* just one plane */
-#endif /* Cache is large */
-#endif /* Cache exists */
 #endif /* CLEAR_INSN_CACHE */
 }