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| author | Jakub Jelinek <jakub@gcc.gnu.org> | 2016-12-10 09:01:17 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2016-12-10 09:01:17 +0100 |
| commit | d89ee6dbda67e1e3efd38cecb003bb2e52b52858 (patch) | |
| tree | 91c4ebe2cfe5c929b6d00b17de216d017d23dbfe /gcc/lto-streamer-in.c | |
| parent | 991dde0a4fe8b15b8edecd0028b1c8c795d0891c (diff) | |
| download | gcc-d89ee6dbda67e1e3efd38cecb003bb2e52b52858.zip gcc-d89ee6dbda67e1e3efd38cecb003bb2e52b52858.tar.gz gcc-d89ee6dbda67e1e3efd38cecb003bb2e52b52858.tar.bz2 | |
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
Diffstat (limited to 'gcc/lto-streamer-in.c')
| -rw-r--r-- | gcc/lto-streamer-in.c | 48 |
1 files changed, 46 insertions, 2 deletions
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 |