From: Jeff Law <jeffreyalaw@gmail.com>
Date: Tue, 27 Sep 2022 05:44:38 +0000 (-0400)
Subject: Fix ICEs due to recent jump-to-return optimization
X-Git-Tag: basepoints/gcc-14~4319
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5da546d7e0561def07c783e6ec897aaa9e7837c6;p=thirdparty%2Fgcc.git

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 90cd6ee56a7b..281a432f6a6c 100644
--- 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);