On Fri, May 20, 2016 at 8:04 AM, H.J. Lu <hjl.to...@gmail.com> wrote:
> On Mon, May 9, 2016 at 5:52 AM, H.J. Lu <hjl.to...@gmail.com> wrote:
>> On Mon, May 2, 2016 at 6:46 AM, H.J. Lu <hjl.to...@gmail.com> wrote:
>>> On Mon, Apr 25, 2016 at 1:36 PM, H.J. Lu <hongjiu...@intel.com> wrote:
>>>> If x86 libgomp isn't compiled with -march=i486 or better, append
>>>> -march=i486 XCFLAGS for x86 libgomp build.
>>>>
>>>> Tested on i686 with and without --with-arch=i386. Tested on
>>>> x86-64 with and without --with-arch_32=i386. OK for trunk?
>>>>
>>>>
>>>> H.J.
>>>> ---
>>>> PR target/70454
>>>> * configure.tgt (XCFLAGS): Append -march=i486 to compile x86
>>>> libgomp if needed.
>>>> ---
>>>> libgomp/configure.tgt | 36 ++++++++++++++++--------------------
>>>> 1 file changed, 16 insertions(+), 20 deletions(-)
>>>>
>>>> diff --git a/libgomp/configure.tgt b/libgomp/configure.tgt
>>>> index 77e73f0..c876e80 100644
>>>> --- a/libgomp/configure.tgt
>>>> +++ b/libgomp/configure.tgt
>>>> @@ -67,28 +67,24 @@ if test x$enable_linux_futex = xyes; then
>>>> ;;
>>>>
>>>> # Note that bare i386 is not included here. We need cmpxchg.
>>>> - i[456]86-*-linux*)
>>>> + i[456]86-*-linux* | x86_64-*-linux*)
>>>> config_path="linux/x86 linux posix"
>>>> - case " ${CC} ${CFLAGS} " in
>>>> - *" -m64 "*|*" -mx32 "*)
>>>> - ;;
>>>> - *)
>>>> - if test -z "$with_arch"; then
>>>> - XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
>>>> + # Need i486 or better.
>>>> + cat > conftestx.c <<EOF
>>>> +#if defined __x86_64__ || defined __i486__ || defined __pentium__ \
>>>> + || defined __pentiumpro__ || defined __pentium4__ \
>>>> + || defined __geode__ || defined __SSE__
>>>> +# error Need i486 or better
>>>> +#endif
>>>> +EOF
>>>> + if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1;
>>>> then
>>>> + if test "${target_cpu}" = x86_64; then
>>>> + XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic"
>>>> + else
>>>> + XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
>>>> fi
>>>> - esac
>>>> - ;;
>>>> -
>>>> - # Similar jiggery-pokery for x86_64 multilibs, except here we
>>>> - # can't rely on the --with-arch configure option, since that
>>>> - # applies to the 64-bit side.
>>>> - x86_64-*-linux*)
>>>> - config_path="linux/x86 linux posix"
>>>> - case " ${CC} ${CFLAGS} " in
>>>> - *" -m32 "*)
>>>> - XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic"
>>>> - ;;
>>>> - esac
>>>> + fi
>>>> + rm -f conftestx.c conftestx.o
>>>> ;;
>>>>
>>>> # Note that sparcv7 and sparcv8 is not included here. We need cas.
>>>> --
>>>> 2.5.5
>>>>
>>>
>>> PING.
>>>
>>
>> PING.
>>
>
> PING.
>
PING.
--
H.J.
