From 2cfe523be931f26aa9988fa4d0b8ca57be548517 Mon Sep 17 00:00:00 2001 From: HongboLiu Date: Mon, 6 Jun 2022 16:49:32 +0800 Subject: [PATCH] [PATCH] c++ bugfix: inconsistent logic when have -O2 --- gcc/gimple.cc | 3 +++ 1 file changed, 3 insertions(+) diff --git a/gcc/gimple.cc b/gcc/gimple.cc index b70ab4d..d9593aa 100644 --- a/gcc/gimple.cc +++ b/gcc/gimple.cc @@ -1566,6 +1566,9 @@ gimple_call_arg_flags (const gcall *stmt, unsigned arg) attr_fnspec fnspec = gimple_call_fnspec (stmt); int flags = 0; + if (!fnspec.known_p ()) + return 0; + if (fnspec.known_p ()) flags = fnspec.arg_eaf_flags (arg); tree callee = gimple_call_fndecl (stmt); -- 2.7.4