ref: 906fb08c99904b7530efa13b2529a60a2e9c034c
parent: effb6ade9692c5ca019344b501d2c178b5bbaefd
author: Roberto E. Vargas Caballero <k0ga@shike2.com>
date: Mon May 9 13:06:11 EDT 2016
[cc2-qbe] Fix error in load() oad() can receive indication of loading a NULL child, so we have to test that the child is different of NULL (it happens mainly in ORET, where the expression is optional).
--- a/cc2/arch/qbe/cgen.c
+++ b/cc2/arch/qbe/cgen.c
@@ -123,6 +123,8 @@
Node *child;
child = (flags & LOADL) ? np->left : np->right;
+ if (!child)
+ return NULL;
tp = &child->type;
if ((flags & FORCE) || !(child->flags & (ISTMP|ISCONS))) {