Convert to Pmode if needed.

[pf3gnuchains/gcc-fork.git] / gcc / libgcc2.c

diff --git a/gcc/libgcc2.c b/gcc/libgcc2.c
index 5312a10..57c40c5 100644 (file)
--- 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, 2003, 2004, 2005, 2007, 2008, 2009, 2010
+   2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
 
 This file is part of GCC.
@@ -762,7 +762,50 @@ __ctzDI2 (UDWtype x)
   return ret + add;
 }
 #endif
+\f
+#ifdef L_clrsbsi2
+#undef int
+int
+__clrsbSI2 (Wtype x)
+{
+  Wtype ret;
+
+  if (x < 0)
+    x = ~x;
+  if (x == 0)
+    return W_TYPE_SIZE - 1;
+  count_leading_zeros (ret, x);
+  return ret - 1;
+}
+#endif
+\f
+#ifdef L_clrsbdi2
+#undef int
+int
+__clrsbDI2 (DWtype x)
+{
+  const DWunion uu = {.ll = x};
+  UWtype word;
+  Wtype ret, add;
+
+  if (uu.s.high == 0)
+    word = uu.s.low, add = W_TYPE_SIZE;
+  else if (uu.s.high == -1)
+    word = ~uu.s.low, add = W_TYPE_SIZE;
+  else if (uu.s.high >= 0)
+    word = uu.s.high, add = 0;
+  else
+    word = ~uu.s.high, add = 0;
+
+  if (word == 0)
+    ret = W_TYPE_SIZE;
+  else
+    count_leading_zeros (ret, word);
 
+  return ret + add - 1;
+}
+#endif
+\f
 #ifdef L_popcount_tab
 const UQItype __popcount_tab[256] =
 {
@@ -2027,24 +2070,12 @@ __clear_cache (char *beg __attribute__((__unused__)),
 
 #endif /* L_clear_cache */
 \f
-#ifdef L_enable_execute_stack
-/* Attempt to turn on execute permission for the stack.  */
-
-#ifdef ENABLE_EXECUTE_STACK
-  ENABLE_EXECUTE_STACK
-#else
-void
-__enable_execute_stack (void *addr __attribute__((__unused__)))
-{}
-#endif /* ENABLE_EXECUTE_STACK */
-
-#endif /* L_enable_execute_stack */
-\f
 #ifdef L_trampoline
 
 /* Jump to a trampoline, loading the static chain address.  */
 
 #if defined(WINNT) && ! defined(__CYGWIN__)
+#include <windows.h>
 int getpagesize (void);
 int mprotect (char *,int, int);