https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118198
Andi Kleen <andi-gcc at firstfloor dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |andi-gcc at firstfloor dot org
--- Comment #4 from Andi Kleen <andi-gcc at firstfloor dot org> ---
Actually assuming the culprit is tail-merge it already has a black list of
functions it won't merge:
if (is_gimple_call (stmt1)
&& gimple_call_internal_p (stmt1))
switch (gimple_call_internal_fn (stmt1))
{
case IFN_UBSAN_NULL:
case IFN_UBSAN_BOUNDS:
case IFN_UBSAN_VPTR:
case IFN_UBSAN_CHECK_ADD:
case IFN_UBSAN_CHECK_SUB:
case IFN_UBSAN_CHECK_MUL:
case IFN_UBSAN_OBJECT_SIZE:
case IFN_UBSAN_PTR:
case IFN_ASAN_CHECK:
/* For these internal functions, gimple_location is an implicit
parameter, which will be used explicitly after expansion.
Merging these statements may cause confusing line numbers in
sanitizer messages. */
return gimple_location (stmt1) == gimple_location (stmt2);
default:
break;
}
Would just need to add __builtin_abort there too?
