diff options
Diffstat (limited to 'libgcc/configure')
| -rw-r--r-- | libgcc/configure | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/libgcc/configure b/libgcc/configure index 78708c7f407..de8c13c4ba3 100644 --- a/libgcc/configure +++ b/libgcc/configure @@ -4766,6 +4766,61 @@ esac ;; esac +case ${host} in +powerpc*-*-linux*) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the PowerPC compiler can do __float128" >&5 +$as_echo_n "checking whether the PowerPC compiler can do __float128... " >&6; } +if test "${libgcc_cv_powerpc_float128+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#pragma GCC target ("vsx,float128") + __float128 add (__float128 *a) { return *a + *(a+1); } +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + libgcc_cv_powerpc_float128=yes +else + libgcc_cv_powerpc_float128=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libgcc_cv_powerpc_float128" >&5 +$as_echo "$libgcc_cv_powerpc_float128" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the PowerPC compiler can do hardware __float128" >&5 +$as_echo_n "checking whether the PowerPC compiler can do hardware __float128... " >&6; } +if test "${libgcc_cv_powerpc_float128_hw+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#pragma GCC target ("cpu=power9,float128,float128-hardware") + #include <sys/auxv.h> + #ifndef AT_PLATFORM + #error "AT_PLATFORM is not defined" + #endif + __float128 add (__float128 a, __float128 b) + { + __float128 ret; + __asm__ ("xsaddqp %0,%1,%2" : "=v" (ret) : "v" (a), "v" (b)); + return ret; + } + void *add_resolver (void) { return (void *) add; } + __float128 add_ifunc (__float128, __float128) + __attribute__ ((__ifunc__ ("add_resolver"))); +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + libgcc_cv_powerpc_float128_hw=yes +else + libgcc_cv_powerpc_float128_hw=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libgcc_cv_powerpc_float128_hw" >&5 +$as_echo "$libgcc_cv_powerpc_float128_hw" >&6; } +esac + # Collect host-machine-specific information. . ${srcdir}/config.host |