On Thu, 22 Nov 2018 at 14:09, Rainer Orth <r...@cebitec.uni-bielefeld.de> wrote:
>
> Hi Christophe,
>
> > On Sat, 10 Nov 2018 at 00:43, Martin Sebor <mse...@gmail.com> wrote:
> >>
> >> On 11/09/2018 12:59 PM, Jeff Law wrote:
> >> > On 10/31/18 10:27 AM, Martin Sebor wrote:
> >> >> Ping: https://gcc.gnu.org/ml/gcc-patches/2018-10/msg01473.html
> >> >>
> >> >> With the C++ bits approved I'm still looking for a review/approval
> >> >> of the remaining changes: the C front end and the shared c-family
> >> >> handling of the new built-in.
> >> > I thought I acked those with just a couple minor doc nits:
> >>
> >> I don't see a formal approval for the rest in my Inbox or in
> >> the archive.
> >>
> >> >> diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
> >> >> index 8ffb0cd..dcf4747 100644
> >> >> --- a/gcc/doc/extend.texi
> >> >> +++ b/gcc/doc/extend.texi
> >> >> @@ -2649,8 +2649,9 @@ explicit @code{externally_visible} attributes
> >> > are still necessary.
> >> >>  @cindex @code{flatten} function attribute
> >> >>  Generally, inlining into a function is limited.  For a function
> >> > marked with
> >> >>  this attribute, every call inside this function is inlined, if 
> >> >> possible.
> >> >> -Whether the function itself is considered for inlining depends on its
> >> > size and
> >> >> -the current inlining parameters.
> >> >> +Functions declared with attribute @code{noinline} and similar are not
> >> >> +inlined.  Whether the function itself is considered for inlining 
> >> >> depends
> >> >> +on its size and the current inlining parameters.
> >> > Guessing this was from another doc patch that I think has already been
> >> > approved
> >>
> >> Yes.  It shouldn't be in the latest patch at the link above.
> >>
> >> >> @@ -11726,6 +11728,33 @@ check its compatibility with @var{size}.
> >> >>
> >> >>  @end deftypefn
> >> >>
> >> >> +@deftypefn {Built-in Function} bool __builtin_has_attribute
> >> > (@var{type-or-expression}, @var{attribute})
> >> >> +The @code{__builtin_has_attribute} function evaluates to an integer
> >> > constant
> >> >> +expression equal to @code{true} if the symbol or type referenced by
> >> >> +the @var{type-or-expression} argument has been declared with
> >> >> +the @var{attribute} referenced by the second argument.  Neither 
> >> >> argument
> >> >> +is valuated.  The @var{type-or-expression} argument is subject to the
> >> > same
> >> > s/valuated/evaluated/ ?
> >>
> >> This should also be fixed in the latest patch at the link above.
> >>
> >> > Did the implementation change significantly requiring another review
> >> > iteration?
> >>
> >> I don't think it changed too significantly between the last two
> >> revisions but I don't have a record of anyone having approved
> >> the C FE and the middle-end bits.  (Sorry if I missed it.) Other
> >> than this response from you all I see in the archive is this:
> >>
> >>    https://gcc.gnu.org/ml/gcc-patches/2018-10/msg00606.html
> >>
> >> Please let me if the last revision is okay to commit.
> >>
> >
> > Hi,
> >
> > It seems you committed this yesterday as r266335, and I have noticed
> > new failures:
> > on both aarch64 and arm:
> > FAIL: c-c++-common/builtin-has-attribute-3.c  -Wc++-compat  (test for
> > excess errors)
> >
> > gcc.log says:
> > Excess errors:
> > /gcc/testsuite/c-c++-common/builtin-has-attribute-3.c:11:25: error:
> > alignment for 'faligned_1' must be at least 4
> > /gcc/testsuite/c-c++-common/builtin-has-attribute-3.c:12:25: error:
> > alignment for 'faligned_2' must be at least 4
> > /gcc/testsuite/c-c++-common/builtin-has-attribute-3.c:39:3: error:
> > alignment for '__builtin_has_attribute_tmp.' must be at least 4
> > /gcc/testsuite/c-c++-common/builtin-has-attribute-3.c:40:3: error:
> > alignment for '__builtin_has_attribute_tmp.' must be at least 4
> > /gcc/testsuite/c-c++-common/builtin-has-attribute-3.c:47:3: error:
> > alignment for '__builtin_has_attribute_tmp.' must be at least 4
> > /gcc/testsuite/c-c++-common/builtin-has-attribute-3.c:48:3: error:
> > alignment for '__builtin_has_attribute_tmp.' must be at least 4
> > /gcc/testsuite/c-c++-common/builtin-has-attribute-3.c:50:3: error:
> > size of array 'Assert' is negative
> > /gcc/testsuite/c-c++-common/builtin-has-attribute-3.c:52:3: error:
> > alignment for '__builtin_has_attribute_tmp.' must be at least 4
> > /gcc/testsuite/c-c++-common/builtin-has-attribute-3.c:52:3: error:
> > size of array 'Assert' is negative
> > /gcc/testsuite/c-c++-common/builtin-has-attribute-3.c:53:3: error:
> > alignment for '__builtin_has_attribute_tmp.' must be at least 4
> > /gcc/testsuite/c-c++-common/builtin-has-attribute-3.c:56:3: error:
> > size of array 'Assert' is negative
> > /gcc/testsuite/c-c++-common/builtin-has-attribute-3.c:58:3: error:
> > alignment for '__builtin_has_attribute_tmp.' must be at least 4
> > /gcc/testsuite/c-c++-common/builtin-has-attribute-3.c:59:3: error:
> > alignment for '__builtin_has_attribute_tmp.' must be at least 4
> > /gcc/testsuite/c-c++-common/builtin-has-attribute-3.c:59:3: error:
> > size of array 'Assert' is negative
> >
> > on arm only:
> > gcc.dg/builtin-has-attribute.c (test for excess errors)
> > gdb.log says:
> > Excess errors:
> > /gcc/testsuite/gcc.dg/builtin-has-attribute.c:12:15: error: size of
> > array 'Assert' is negative
>
> I'm seeing the same on sparc-sun-solaris2.11, plus
>
> +FAIL: c-c++-common/builtin-has-attribute-3.c  -std=gnu++14 (test for excess 
> errors)
> +FAIL: c-c++-common/builtin-has-attribute-3.c  -std=gnu++17 (test for excess 
> errors)
> +FAIL: c-c++-common/builtin-has-attribute-3.c  -std=gnu++98 (test for excess 
> errors)
>

Right, me too.

As I split reports in one column for gcc, one for g++, one for
libstdc++ and one for gfortran,
I forgot to report the g++ regressions.
Thanks

> According to gcc-testresults postings, several other targets are also
> affected:
>
>         aarch64-unknown-linux-gnu
>         armv8l-unknown-linux-gnueabihf
>         m68k-unknown-linux-gnu
>         mips64el-unknown-linux-gnu
>         moxie-unknown-elf
>         powerpc64-unknown-linux-gnu
>         powerpc64le-unknown-linux-gnu
>
>         Rainer
>
> --
> -----------------------------------------------------------------------------
> Rainer Orth, Center for Biotechnology, Bielefeld University

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