diff options
Diffstat (limited to 'sysdeps/s390/configure')
| -rw-r--r-- | sysdeps/s390/configure | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/sysdeps/s390/configure b/sysdeps/s390/configure index 6948cc2190..9e182f7ca1 100644 --- a/sysdeps/s390/configure +++ b/sysdeps/s390/configure @@ -104,5 +104,46 @@ if test "$enable_lock_elision" = yes && test "$libc_cv_gcc_builtin_tbegin" = no 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 + + test -n "$critic_missing" && as_fn_error $? " *** $critic_missing" "$LINENO" 5 |