From 92dc99425b2566e8cc9cba7cec8774911db0c654 Mon Sep 17 00:00:00 2001
From: XingYuShuai <1150775134@qq.com>
Date: Fri, 2 Feb 2024 15:55:07 +0800
Subject: [PATCH 1/3] [Loop CRC] Solving the problem of insufficient CRC table.

---
 gcc/tree-ssa-loop-crc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gcc/tree-ssa-loop-crc.c b/gcc/tree-ssa-loop-crc.c
index 2dd9e1e3b..26f8e64d1 100644
--- a/gcc/tree-ssa-loop-crc.c
+++ b/gcc/tree-ssa-loop-crc.c
@@ -421,7 +421,8 @@ match_crc_table (tree crc_table)
   tree low_bound = array_ref_low_bound (crc_table);
   tree up_bound = array_ref_up_bound (crc_table);
   tree element_size = array_ref_element_size (crc_table);
-  if (low_bound == NULL || up_bound == NULL || element_size == NULL)
+  if (!tree_fits_uhwi_p(low_bound) || !tree_fits_uhwi_p(up_bound) ||
+      !tree_fits_uhwi_p(element_size))
     return false;
   unsigned HOST_WIDE_INT lb = tree_to_uhwi (low_bound);
   unsigned HOST_WIDE_INT ub = tree_to_uhwi (up_bound);
-- 
2.33.0