re PR rtl-optimization/64671 (s390-linux profiledbootstrap failure)

2015-01-19  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/64671
	* lra-remat.c (operand_to_remat): Don't consider jump and call
	insns.

From-SVN: r219857

gcc/ChangeLog

+2015-01-19  Vladimir Makarov  <vmakarov@redhat.com>
+
+	PR rtl-optimization/64671
+	* lra-remat.c (operand_to_remat): Don't consider jump and call
+	insns.
+
 2015-01-19  David Edelsohn  <dje.gcc@gmail.com>
 
 	* config/rs6000/default64.h: Include rs6000-cpus.def.

gcc/lra-remat.c

@@ -413,6 +413,9 @@ operand_to_remat (rtx_insn *insn)
   struct lra_static_insn_data *static_id = id->insn_static_data;
   struct lra_insn_reg *reg, *found_reg = NULL;
 
+  /* Don't rematerialize insns which can change PC.  */
+  if (JUMP_P (insn) || CALL_P (insn))
+    return -1;
   /* First find a pseudo which can be rematerialized.  */
   for (reg = id->regs; reg != NULL; reg = reg->next)
     /* True FRAME_POINTER_NEEDED might be because we can not follow