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[Bug sanitizer/81223] [8 Regression] ICE in instrument_null at gcc/ubsan.c:1230
- From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 27 Jun 2017 09:07:08 +0000
- Subject: [Bug sanitizer/81223] [8 Regression] ICE in instrument_null at gcc/ubsan.c:1230
- Auto-submitted: auto-generated
- References: <bug-81223-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81223
--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
I.e.
--- a/gcc/ubsan.c
+++ b/gcc/ubsan.c
@@ -1228,7 +1228,8 @@ instrument_null (gimple_stmt_iterator gsi, tree t, bool
is_lhs)
if (TREE_CODE (t) == ADDR_EXPR)
t = TREE_OPERAND (t, 0);
tree base = get_base_address (t);
- if (TREE_CODE (base) == MEM_REF
+ if (base != NULL_TREE
+ && TREE_CODE (base) == MEM_REF
&& TREE_CODE (TREE_OPERAND (base, 0)) == SSA_NAME)
instrument_mem_ref (t, base, &gsi, is_lhs);
}