On Sun, May 29, 2016 at 3:14 PM, H.J. Lu <hjl.to...@gmail.com> wrote:
> 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.
PING.
--
H.J.
