Fix ICEs due to recent jump-to-return optimization

gcc/
	* cfgrtl.cc (fixup_reorder_chain): Verify that simple_return
	and return are available before trying to use them.

diff --git a/gcc/cfgrtl.cc b/gcc/cfgrtl.cc
index 90cd6ee56a7bdda2d6b06b7580e5ec6f3db32db3..281a432f6a6c151673c5532941184c41e8100a64 100644 (file)
--- a/gcc/cfgrtl.cc
+++ b/gcc/cfgrtl.cc
@@ -4049,7 +4049,8 @@ fixup_reorder_chain (void)
       rtx_insn *ret, *use;
       basic_block dest;
       if (bb_is_just_return (e_fall->dest, &ret, &use)
-         && (PATTERN (ret) == simple_return_rtx || PATTERN (ret) == ret_rtx))
+         && ((PATTERN (ret) == simple_return_rtx && targetm.have_simple_return ())
+             || (PATTERN (ret) == ret_rtx && targetm.have_return ())))
        {
          ret_label = PATTERN (ret);
          dest = EXIT_BLOCK_PTR_FOR_FN (cfun);