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Less work in invert_truthvalue


 Hi,

  I noticed in fold-const.c (invert_truthvalue) we were calling build_int_cst
with no type, the using fold_convert on it.  This seems like extra work, so
I removed the call to fold_convert.  I have not attempted to see if there is
any speed up with this patch.

  This patch has been bootstrapped and regtested on powerpc-linux.  Ok for
mainline?

-- 
Thanks,
Jim

http://www.student.cs.uwaterloo.ca/~ja2morri/
http://phython.blogspot.com
http://open.nit.ca/wiki/?page=jim

2005-02-15  James A. Morrison  <phython@gcc.gnu.org>

	* fold-const.c (invert_truthvalue): <INTEGER_CST>: Call 
	build_int_cst.

Index: fold-const.c
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/fold-const.c,v
retrieving revision 1.511
diff -u -p -r1.511 fold-const.c
--- fold-const.c	14 Feb 2005 16:07:08 -0000	1.511
+++ fold-const.c	15 Feb 2005 14:00:34 -0000
@@ -2936,8 +2936,7 @@ invert_truthvalue (tree arg)
   switch (code)
     {
     case INTEGER_CST:
-      return fold_convert (type,
-			   build_int_cst (NULL_TREE, integer_zerop (arg)));
+      return build_int_cst (type, integer_zerop (arg));
 
     case TRUTH_AND_EXPR:
       return build2 (TRUTH_OR_EXPR, type,

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