From ca24d352e98e357f4f7b8f0d262201765705a08a Mon Sep 17 00:00:00 2001
From: Pronin Alexander <pronin.alexander@huawei.com>
Date: Thu, 31 Oct 2024 16:31:33 +0800
Subject: [PATCH 4/6] Add required check for iteration through uses

Signed-off-by: Pronin Alexander  <pronin.alexander@huawei.com>
---
 gcc/tree-ssa-math-opts.cc | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/gcc/tree-ssa-math-opts.cc b/gcc/tree-ssa-math-opts.cc
index 2c06b8a60..80c06fa01 100644
--- a/gcc/tree-ssa-math-opts.cc
+++ b/gcc/tree-ssa-math-opts.cc
@@ -4938,8 +4938,13 @@ convert_double_size_mul (gimple_stmt_iterator *gsi, gimple *stmt)
 
   /* Find the mult low part getter.  */
   FOR_EACH_IMM_USE_STMT (use_stmt, use_iter, match[3])
-    if (gimple_assign_rhs_code (use_stmt) == REALPART_EXPR)
-      break;
+    {
+      if (!is_gimple_assign (use_stmt))
+	continue;
+
+      if (gimple_assign_rhs_code (use_stmt) == REALPART_EXPR)
+	break;
+    }
 
   /* Create high and low (if needed) parts extractors.  */
   /* Low part.  */
-- 
2.33.0