Re: [PATCH] PR 65138, Fix PowerPC little endian -flto bugs

[David Edelsohn <dje.gcc@gmail.com>]

On Mon, Mar 2, 2015 at 6:55 PM, Michael Meissner
<meissner@linux.vnet.ibm.com> wrote:
> This patch fixes PR 65138, which shows up when you configure a compiler on a
> 64-bit PowerPC little endian system without using the --with-cpu=power8
> configuration option, and run tests involve -flto.
>
> The following tests now run when I build a configuration without the
> --with-cpu=power8 option:
>
>         c-c++-common/torture/vector-compare-1.c
>         gcc.c-torture/execute/20050604-1.c
>         gcc.c-torture/execute/20060420-1.c
>         gcc.dg/torture/pr45678-1.c
>         gcc.dg/torture/pr45678-2.c
>         gcc.dg/torture/vector-1.c
>         gcc.dg/torture/vector-2.c
>
> There were no regressions in the run.
>
> Is it ok to install in the trunk and to back port to GCC 4.9 (and GCC 4.8 if it
> is still active)?
>
> 2015-03-02  Michael Meissner  <meissner@linux.vnet.ibm.com>
>
>         PR 65138/target
>         * config/rs6000/rs6000-cpus.def (powerpc64le): Add new generic
>         processor type for 64-bit little endian PowerPC.
>
>         * config/rs6000/rs6000.c (rs6000_option_override_internal): If
>         -mdebug=reg, print TARGET_DEFAULT.  Fix logic to use
>         TARGET_DEFAULT if there is no default cpu.  Fix -mdebug=reg
>         printing built-in mask so it does not pass NULL pointers.
>
>         * doc/invoke.texi (IBM RS/6000 and PowerPC options): Document
>         -mcpu=powerpc64le.

Okay in trunk, 4.9 and 4.8.

Thanks, David