Don't combine calls into i3, it wouldn't be changed into a CALL_INSN.

	* combine.c (try_combine): Don't allow a call as one of the source
	insns.

From-SVN: r217197

gcc/ChangeLog

 2014-11-06  Bernd Schmidt  <bernds@codesourcery.com>
 
+	* combine.c (try_combine): Don't allow a call as one of the source
+	insns.
+
 	* target.def (decl_end): New hook.
 	* varasm.c (assemble_variable_contents, assemble_constant_contents):
 	Use it.

gcc/combine.c

@@ -2553,7 +2553,10 @@ try_combine (rtx_insn *i3, rtx_insn *i2, rtx_insn *i1, rtx_insn *i0,
 
   /* Exit early if one of the insns involved can't be used for
      combinations.  */
-  if (cant_combine_insn_p (i3)
+  if (CALL_P (i2)
+      || (i1 && CALL_P (i1))
+      || (i0 && CALL_P (i0))
+      || cant_combine_insn_p (i3)
       || cant_combine_insn_p (i2)
       || (i1 && cant_combine_insn_p (i1))
       || (i0 && cant_combine_insn_p (i0))