From d89ee6dbda67e1e3efd38cecb003bb2e52b52858 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Sat, 10 Dec 2016 09:01:17 +0100 Subject: re PR sanitizer/78708 ([ASAN][LTO] ICE in expand_ASAN_MARK, at internal-fn.c:380 - when compiling but not linking with ASAN) PR sanitizer/78708 * lto-streamer-in.c (input_function): In addition to debug stmts without -g, remove IFN_*SAN_* calls if corresponding flag_sanitize bit is not enabled. From-SVN: r243514 --- gcc/lto-streamer-in.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 46 insertions(+), 2 deletions(-) (limited to 'gcc/lto-streamer-in.c') diff --git a/gcc/lto-streamer-in.c b/gcc/lto-streamer-in.c index 1f39e6b..862e156 100644 --- a/gcc/lto-streamer-in.c +++ b/gcc/lto-streamer-in.c @@ -1110,15 +1110,59 @@ input_function (tree fn_decl, struct data_in *data_in, while (!gsi_end_p (bsi)) { gimple *stmt = gsi_stmt (bsi); + bool remove = false; /* If we're recompiling LTO objects with debug stmts but we're not supposed to have debug stmts, remove them now. We can't remove them earlier because this would cause uid mismatches in fixups, but we can do it at this point, as - long as debug stmts don't require fixups. */ - if (!MAY_HAVE_DEBUG_STMTS && !flag_wpa && is_gimple_debug (stmt)) + long as debug stmts don't require fixups. + Similarly remove all IFN_*SAN_* internal calls */ + if (!flag_wpa) + { + if (!MAY_HAVE_DEBUG_STMTS && is_gimple_debug (stmt)) + remove = true; + if (is_gimple_call (stmt) + && gimple_call_internal_p (stmt)) + { + switch (gimple_call_internal_fn (stmt)) + { + case IFN_UBSAN_NULL: + if ((flag_sanitize + & (SANITIZE_NULL | SANITIZE_ALIGNMENT)) == 0) + remove = true; + break; + case IFN_UBSAN_BOUNDS: + if ((flag_sanitize & SANITIZE_BOUNDS) == 0) + remove = true; + break; + case IFN_UBSAN_VPTR: + if ((flag_sanitize & SANITIZE_VPTR) == 0) + remove = true; + break; + case IFN_UBSAN_OBJECT_SIZE: + if ((flag_sanitize & SANITIZE_OBJECT_SIZE) == 0) + remove = true; + break; + case IFN_ASAN_MARK: + if ((flag_sanitize & SANITIZE_ADDRESS) == 0) + remove = true; + break; + case IFN_TSAN_FUNC_EXIT: + if ((flag_sanitize & SANITIZE_THREAD) == 0) + remove = true; + break; + default: + break; + } + gcc_assert (!remove || gimple_call_lhs (stmt) == NULL_TREE); + } + } + if (remove) { gimple_stmt_iterator gsi = bsi; gsi_next (&bsi); + unlink_stmt_vdef (stmt); + release_defs (stmt); gsi_remove (&gsi, true); } else -- cgit v1.1