From 63f99f46e851aecc070496a0e688a0d118c820a4 Mon Sep 17 00:00:00 2001
From: YunQiang Su <yunqiang@isrc.iscas.ac.cn>
Date: Mon, 2 Sep 2024 17:57:52 +0800
Subject: [PATCH] tree-ssa-loop-crc.cc: TARGET_CRC32 may be not defined

TARGET_CRC32 may be not defined on some architectures, RISC-V is one example.
---
 gcc/tree-ssa-loop-crc.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gcc/tree-ssa-loop-crc.cc b/gcc/tree-ssa-loop-crc.cc
index b9c2f71ca..7eee9446d 100644
--- a/gcc/tree-ssa-loop-crc.cc
+++ b/gcc/tree-ssa-loop-crc.cc
@@ -1227,6 +1227,9 @@ convert_to_new_loop (class loop *loop)
 static unsigned int
 tree_ssa_loop_crc ()
 {
+#ifndef TARGET_CRC32
+  return 0;
+#else
   if (TARGET_CRC32 == false)
     {
       warning (OPT____,"The loop-crc optimization is not working." \
@@ -1269,6 +1272,7 @@ tree_ssa_loop_crc ()
       }
   }
   return todo;
+#endif
 }
 
 /* Loop crc.  */
-- 
2.33.0