On Tue, Jun 25, 2019 at 2:20 AM Jeff Law <l...@redhat.com> wrote: > > These are some minor improvements to tree-ssa-dse, in particular it adds > handling of the _CHK variants of the supported functions (memcpy, > memmove, memset). It's just something I noticed while poking at 90883. > > These don't trigger during bootstraps, but do in the testsuite. The > tests that were changed were verified to make sure that the > removal/trimming of *_CHK calls were correct. For example, some tests > in the c-torture/builtins directory do things like > > __builtin_memset_chk (...); > abort (); > > Since the memory locations are never read, DSE just removes the call. > This happened with enough regularity in the c-torture/execute/builtins > tests that I changed the .exp driver to add the -fno-tree-dse flag. In > the other cases I just changed the affected tests. > > Bootstrapped and regression tested on x86_64, ppc64le, sparc64, others > will follow (aarch, ppc64, i686, etc). It's built toolchains & > libraries and regression tested on a wide variety of other platforms as > well. > > > OK for the trunk?
OK. Thanks, Richard. > jeff
