From: Martin Liska <mliska@suse.cz>
Date: Thu, 18 Jun 2020 07:11:31 +0000 (+0200)
Subject: Add missing check for gassign.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d11c9841d54ed74978f8d0e0f352631f90504dd5;p=gcc.git

Add missing check for gassign.

gcc/ChangeLog:

	* tree-vect-generic.c (expand_vector_condition): Check
	for gassign before inspecting RHS.
---

diff --git a/gcc/tree-vect-generic.c b/gcc/tree-vect-generic.c
index fb955bbf3d2..83d399a7898 100644
--- a/gcc/tree-vect-generic.c
+++ b/gcc/tree-vect-generic.c
@@ -957,8 +957,9 @@ expand_vector_condition (gimple_stmt_iterator *gsi)
 
   if (code == SSA_NAME)
     {
-      gimple *assign = SSA_NAME_DEF_STMT (a);
-      if (TREE_CODE_CLASS (gimple_assign_rhs_code (assign)) == tcc_comparison)
+      gassign *assign = dyn_cast<gassign *> (SSA_NAME_DEF_STMT (a));
+      if (assign != NULL
+	  && TREE_CODE_CLASS (gimple_assign_rhs_code (assign)) == tcc_comparison)
 	{
 	  a_is_comparison = true;
 	  a1 = gimple_assign_rhs1 (assign);