re PR rtl-optimization/26232 (cc0 targets broken; loop-invariants-move code doesn...

	PR rtl-optimization/26232
	* loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.

From-SVN: r110897

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 095c6d6..90192ea 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
+
+       PR rtl-optimization/26232
+       * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
+
 2006-02-11  Jason Merrill  <jason@redhat.com>
 
        PR tree-opt/24365

diff --git a/gcc/loop-invariant.c b/gcc/loop-invariant.c
index 3ecf9d6..f703747 100644 (file)
--- a/gcc/loop-invariant.c
+++ b/gcc/loop-invariant.c
@@ -730,6 +730,12 @@ find_invariant_insn (rtx insn, bool always_reached, bool always_executed)
       || find_reg_note (insn, REG_NO_CONFLICT, NULL_RTX))
     return;
 
+#ifdef HAVE_cc0
+  /* We can't move a CC0 setter without the user.  */
+  if (sets_cc0_p (insn))
+    return;
+#endif
+
   set = single_set (insn);
   if (!set)
     return;