From: Andrew Pinski <pinskia@gmail.com>
Date: Mon, 5 Dec 2022 08:09:52 +0000 (+0100)
Subject: tree-optimization/107956 - ICE with NULL call LHS
X-Git-Tag: release-12.2.mpacbti-rel1~235
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=16debfadbd759f9933b4a62029661f01188ad928;p=thirdparty%2Fgcc.git

tree-optimization/107956 - ICE with NULL call LHS

The following adds a missing check for a NULL call LHS in the
vector pattern recognizer.

	PR tree-optimization/107956
	* tree-vect-patterns.cc (vect_recog_mask_conversion_pattern):
	Check for NULL LHS on masked loads.

(cherry picked from commit 5c11d748564c7ce3b096e87ad350fcddd493e45e)
---

diff --git a/gcc/tree-vect-patterns.cc b/gcc/tree-vect-patterns.cc
index 217bdfd7045a..6c157b93eb17 100644
--- a/gcc/tree-vect-patterns.cc
+++ b/gcc/tree-vect-patterns.cc
@@ -4603,6 +4603,8 @@ vect_recog_mask_conversion_pattern (vec_info *vinfo,
       else
 	{
 	  lhs = gimple_call_lhs (last_stmt);
+	  if (!lhs)
+	    return NULL;
 	  vectype1 = get_vectype_for_scalar_type (vinfo, TREE_TYPE (lhs));
 	}