Better bundle template selection for IA64

[Bernd Schmidt]

This patch changes template selection not to give any priority to BBB, MBB, and
MMF templates, all of which have some disadvantages (the first two force the
use of a weaker branch prediction even if the slots are filled with NOPs, and
the second one is problematic for instruction issue.


Bernd

	* tc-ia64.c (extra_goodness): Only prefer F in slot 1 and B in slot 2.

Index: tc-ia64.c
===================================================================
RCS file: /cvs/src/src/gas/config/tc-ia64.c,v
retrieving revision 1.23
diff -u -p -r1.23 tc-ia64.c
--- tc-ia64.c	2000/10/05 21:55:24	1.23
+++ tc-ia64.c	2000/10/28 15:18:11
@@ -5711,9 +5711,9 @@ match (int templ, int type, int slot)
 static inline int
 extra_goodness (int templ, int slot)
 {
-  if (match (templ, IA64_TYPE_F, slot))
+  if (slot == 1 && match (templ, IA64_TYPE_F, slot))
     return 2;
-  if (match (templ, IA64_TYPE_B, slot))
+  if (slot == 2 && match (templ, IA64_TYPE_B, slot))
     return 1;
   return 0;
 }