soft-fp updated

["Joseph S. Myers" <joseph@codesourcery.com>]

I've updated soft-fp on mainline and 4.2 branch from glibc CVS where these 
changes needed for PowerPC soft-float long double have now been committed.

Hopefully now the rest of the soft-float long double patches can be 
committed to mainline and 4.2 branch, and then my E500 long double patch 
can be reviewed for mainline.

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 120805)
+++ ChangeLog	(working copy)
@@ -1,3 +1,8 @@
+2007-01-15  Joseph S. Myers  <joseph@codesourcery.com>
+
+	* config/soft-fp/op-common.h, config/soft-fp/op-4.h: Update from
+	glibc CVS.
+
 2007-01-15  Tom Tromey  <tromey@redhat.com>
 
 	* doc/sourcebuild.texi (libgcj Tests): Don't mention jacks.
Index: config/soft-fp/op-common.h
===================================================================
--- config/soft-fp/op-common.h	(revision 120805)
+++ config/soft-fp/op-common.h	(working copy)
@@ -1,5 +1,5 @@
 /* Software floating-point emulation. Common operations.
-   Copyright (C) 1997,1998,1999,2006 Free Software Foundation, Inc.
+   Copyright (C) 1997,1998,1999,2006,2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Richard Henderson (rth@cygnus.com),
 		  Jakub Jelinek (jj@ultra.linux.cz),
@@ -99,10 +99,10 @@
   else							\
     {							\
       X##_e = _FP_EXPMAX_##fs - 1;			\
-      FP_SET_EXCEPTION(FP_EX_OVERFLOW);			\
-      FP_SET_EXCEPTION(FP_EX_INEXACT);			\
       _FP_FRAC_SET_##wc(X, _FP_MAXFRAC_##wc);		\
     }							\
+    FP_SET_EXCEPTION(FP_EX_INEXACT);			\
+    FP_SET_EXCEPTION(FP_EX_OVERFLOW);			\
 } while (0)
 
 /* Check for a semi-raw value being a signaling NaN and raise the
@@ -1252,6 +1252,9 @@
 	      _FP_FRAC_SRL_##swc(S, (_FP_WFRACBITS_##sfs		     \
 				     - _FP_WFRACBITS_##dfs));		     \
 	      _FP_FRAC_COPY_##dwc##_##swc(D, S);			     \
+	      /* Semi-raw NaN must have all workbits cleared.  */	     \
+	      _FP_FRAC_LOW_##dwc(D)					     \
+		&= ~(_FP_W_TYPE) ((1 << _FP_WORKBITS) - 1);		     \
 	      _FP_FRAC_HIGH_##dfs(D) |= _FP_QNANBIT_SH_##dfs;		     \
 	    }								     \
 	}								     \
Index: config/soft-fp/op-4.h
===================================================================
--- config/soft-fp/op-4.h	(revision 120805)
+++ config/soft-fp/op-4.h	(working copy)
@@ -564,7 +564,7 @@
     r1 = x1 - y1;						\
     _c2 = r1 > x1;						\
     r1 -= _c1;							\
-    _c2 |= r1 > _c1;						\
+    _c2 |= _c1 && (y1 == x1);					\
     r2 = x2 - y2 - _c2;						\
   } while (0)
 #endif
@@ -578,11 +578,11 @@
     r1 = x1 - y1;						\
     _c2 = r1 > x1;						\
     r1 -= _c1;							\
-    _c2 |= r1 > _c1;						\
+    _c2 |= _c1 && (y1 == x1);					\
     r2 = x2 - y2;						\
     _c3 = r2 > x2;						\
     r2 -= _c2;							\
-    _c3 |= r2 > _c2;						\
+    _c3 |= _c2 && (y2 == x2);					\
     r3 = x3 - y3 - _c3;						\
   } while (0)
 #endif

-- 
Joseph S. Myers
joseph@codesourcery.com