From ae15300352b0fa47a533af852f88e7244c2820cc Mon Sep 17 00:00:00 2001
From: Richard Biener <rguenther@suse.de>
Date: Tue, 29 Sep 2020 14:38:06 +0200
Subject: [PATCH 3/3] [Backport] tree-optimization/97238 - fix typo causing ICE

Reference: https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=29aef377d814bd342dd5a306f99e0d614623ce0e

This fixes a typo causing a NULL dereference.

2020-09-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/97238
	* tree-ssa-reassoc.c (ovce_extract_ops): Fix typo.

	* gcc.dg/pr97238.c: New testcase.
---
 gcc/testsuite/gcc.dg/pr97238.c | 12 ++++++++++++
 gcc/tree-ssa-reassoc.c         |  2 +-
 2 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 gcc/testsuite/gcc.dg/pr97238.c

diff --git a/gcc/testsuite/gcc.dg/pr97238.c b/gcc/testsuite/gcc.dg/pr97238.c
new file mode 100644
index 000000000..746e93a97
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr97238.c
@@ -0,0 +1,12 @@
+/* { dg-do compile } */
+/* { dg-options "-O -Wno-psabi -w" } */
+
+typedef int __attribute__ ((__vector_size__ (8))) V;
+int b, c, e;
+V d;
+
+V
+foo (void)
+{
+  return (b || e) | c > d | ((b || e) | c > d);
+}
diff --git a/gcc/tree-ssa-reassoc.c b/gcc/tree-ssa-reassoc.c
index 5f978ac78..62e7c8dca 100644
--- a/gcc/tree-ssa-reassoc.c
+++ b/gcc/tree-ssa-reassoc.c
@@ -3853,7 +3853,7 @@ ovce_extract_ops (tree var, gassign **rets, bool *reti, tree *type,
     return ERROR_MARK;
 
   gassign *assign = dyn_cast<gassign *> (SSA_NAME_DEF_STMT (cond));
-  if (stmt == NULL
+  if (assign == NULL
       || TREE_CODE_CLASS (gimple_assign_rhs_code (assign)) != tcc_comparison)
     return ERROR_MARK;
 
-- 
2.27.0.windows.1