PR middle-end/23199

	* cfgrtl.c (safe_insert_insn_on_edge): Use can_copy_p to detect
	whether registers live on the edge can be saved/restored.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@105618 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 2 insertions, 8 deletions

diff --git a/gcc/cfgrtl.c b/gcc/cfgrtl.c
index 00a219d4802..f49eceb1657 100644
--- a/gcc/cfgrtl.c
+++ b/gcc/cfgrtl.c
@@ -1456,16 +1456,9 @@ safe_insert_insn_on_edge (rtx insn, edge e)
   regset killed;
   rtx save_regs = NULL_RTX;
   unsigned regno;
-  int noccmode;
   enum machine_mode mode;
   reg_set_iterator rsi;
 
-#ifdef AVOID_CCMODE_COPIES
-  noccmode = true;
-#else
-  noccmode = false;
-#endif
-
   killed = ALLOC_REG_SET (&reg_obstack);
 
   for (x = insn; x; x = NEXT_INSN (x))
@@ -1491,7 +1484,8 @@ safe_insert_insn_on_edge (rtx insn, edge e)
       if (mode == VOIDmode)
 	return false;
 
-      if (noccmode && mode == CCmode)
+      /* Avoid copying in CCmode if we can't.  */
+      if (!can_copy_p (mode))
 	return false;
 	
       save_regs = alloc_EXPR_LIST (0,