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.

diff --git a/gcc/tree-vect-patterns.cc b/gcc/tree-vect-patterns.cc
index f6c34bb32631cdb7885dbcae18b1b79836cc17fe..d9fdb24ee6200c013155169a54d09ae3fb315bb2 100644 (file)
--- a/gcc/tree-vect-patterns.cc
+++ b/gcc/tree-vect-patterns.cc
@@ -4964,6 +4964,8 @@ 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));
        }