[PATCH INSTALLED]: Print sign of Inf in tree dumps

[Kaveh R. GHAZI]

Analogous to this patch:
http://gcc.gnu.org/ml/gcc-patches/2006-10/msg00306.html

Tested on sparc-sun-solaris2.10, no regressions.

Instaled as obvious on mainline.

		--Kaveh


2006-11-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* tree-pretty-print.c (dump_generic_node): Print sign of Inf.

diff -rup orig/egcc-SVN20061021/gcc/tree-pretty-print.c egcc-SVN20061021/gcc/tree-pretty-print.c
--- orig/egcc-SVN20061021/gcc/tree-pretty-print.c	2006-05-10 20:00:34.000000000 -0400
+++ egcc-SVN20061021/gcc/tree-pretty-print.c	2006-10-22 17:06:10.640556109 -0400
@@ -751,7 +751,7 @@ dump_generic_node (pretty_printer *buffe
 #if !defined(REAL_IS_NOT_DOUBLE) || defined(REAL_ARITHMETIC)
 	d = TREE_REAL_CST (node);
 	if (REAL_VALUE_ISINF (d))
-	  pp_string (buffer, " Inf");
+	  pp_string (buffer, REAL_VALUE_NEGATIVE (d) ? " -Inf" : " Inf");
 	else if (REAL_VALUE_ISNAN (d))
 	  pp_string (buffer, " Nan");
 	else