google3/third_party/grte/v5_src/glibc-2.27/sysdeps/s390/configure

# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
 # Local configure fragment for sysdeps/s390.

$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_tbegin" >&5
$as_echo_n "checking for __builtin_tbegin... " >&6; }
if ${libc_cv_gcc_builtin_tbegin+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat > conftest.c <<\EOF
#include <htmintrin.h>
void testtransaction ()
{
  if (__builtin_tbegin (0) == _HTM_TBEGIN_STARTED)
    {
      __builtin_tend ();
    }
}
EOF
if { ac_try='${CC-cc} -mhtm -O2 -S conftest.c -o - | grep -w tbegin > /dev/null'
  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; } ;
then
  libc_cv_gcc_builtin_tbegin=yes
else
  libc_cv_gcc_builtin_tbegin=no
fi
rm -f conftest*
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_builtin_tbegin" >&5
$as_echo "$libc_cv_gcc_builtin_tbegin" >&6; }

if test "$libc_cv_gcc_builtin_tbegin" = no ; then
   critic_missing="$critic_missing The used GCC has no support for __builtin_tbegin, which is needed for lock-elision on target S390."
fi


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 vector instruction support" >&5
$as_echo_n "checking for S390 vector instruction support... " >&6; }
if ${libc_cv_asm_s390_vx+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat > conftest.c <<\EOF
void testvecinsn ()
{
    __asm__ (".machine \"z13\" \n\t"
	     ".machinemode \"zarch_nohighgprs\" \n\t"
	     "vistrbs %%v16,%%v17 \n\t"
	     "locghie %%r1,0" : :);
}
EOF
if { ac_try='${CC-cc} --shared conftest.c -o conftest.o &> /dev/null'
  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; } ;
then
  libc_cv_asm_s390_vx=yes
else
  libc_cv_asm_s390_vx=no
fi
rm -f conftest*
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_vx" >&5
$as_echo "$libc_cv_asm_s390_vx" >&6; }

if test "$libc_cv_asm_s390_vx" = yes ;
then
  $as_echo "#define HAVE_S390_VX_ASM_SUPPORT 1" >>confdefs.h

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Use binutils with vector-support in order to use optimized implementations." >&5
$as_echo "$as_me: WARNING: Use binutils with vector-support in order to use optimized implementations." >&2;}
fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 vector support in gcc" >&5
$as_echo_n "checking for S390 vector support in gcc... " >&6; }
if ${libc_cv_gcc_s390_vx+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat > conftest.c <<\EOF
void testvecclobber ()
{
  __asm__ ("" : : : "v16");
}
EOF
if { ac_try='${CC-cc} --shared conftest.c -o conftest.o &> /dev/null'
  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; } ;
then
  libc_cv_gcc_s390_vx=yes
else
  libc_cv_gcc_s390_vx=no
fi
rm -f conftest*
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_s390_vx" >&5
$as_echo "$libc_cv_gcc_s390_vx" >&6; }

if test "$libc_cv_gcc_s390_vx" = yes ;
then
  $as_echo "#define HAVE_S390_VX_GCC_SUPPORT 1" >>confdefs.h

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 z196 zarch instruction support as default" >&5
$as_echo_n "checking for S390 z196 zarch instruction support as default... " >&6; }
if ${libc_cv_asm_s390_min_z196_zarch+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat > conftest.c <<\EOF
float testinsn (double e)
{
    float d;
    __asm__ ("ledbra %0,5,%1,4" : "=f" (d) : "f" (e) );
    return d;
}
EOF
if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
			-o conftest.o &> /dev/null'
  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; } ;
then
  libc_cv_asm_s390_min_z196_zarch=yes
else
  libc_cv_asm_s390_min_z196_zarch=no
fi
rm -f conftest*
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_min_z196_zarch" >&5
$as_echo "$libc_cv_asm_s390_min_z196_zarch" >&6; }

if test "$libc_cv_asm_s390_min_z196_zarch" = yes ;
then
  $as_echo "#define HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT 1" >>confdefs.h

fi

test -n "$critic_missing" && as_fn_error $? "
*** $critic_missing" "$LINENO" 5