[Bug sanitizer/60745] Many ICEs running libstdc++ testsuite with ubsan, maybe due to PCH

[mpolacek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60745

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |mpolacek at gcc dot 
gnu.org

--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
This should fix it, we just need to make sure sanitizer builtins are
initialized.

diff --git a/gcc/c-family/c-ubsan.c b/gcc/c-family/c-ubsan.c
index dc4d981..9d2403c 100644
--- a/gcc/c-family/c-ubsan.c
+++ b/gcc/c-family/c-ubsan.c
@@ -29,6 +29,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "ubsan.h"
 #include "c-family/c-common.h"
 #include "c-family/c-ubsan.h"
+#include "asan.h"

 /* Instrument division by zero and INT_MIN / -1.  If not instrumenting,
    return NULL_TREE.  */
@@ -185,6 +186,8 @@ ubsan_instrument_vla (location_t loc, tree size)
 tree
 ubsan_instrument_return (location_t loc)
 {
+  initialize_sanitizer_builtins ();
+
   tree data = ubsan_create_data ("__ubsan_missing_return_data", &loc,
                                 NULL, NULL_TREE);
   tree t = builtin_decl_explicit (BUILT_IN_UBSAN_HANDLE_MISSING_RETURN);