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SUSE:SLE-12-SP4:Update
glibc-testsuite.3527
0008-S390-configure-check-for-vector-instructio...
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File 0008-S390-configure-check-for-vector-instruction-support-.patch of Package glibc-testsuite.3527
2015-08-26 Stefan Liebler <stli@linux.vnet.ibm.com> * config.h.in (HAVE_S390_VX_ASM_SUPPORT): New macro undefine. * sysdeps/s390/configure.ac: Add test for S390 vector instruction assembler support. * sysdeps/s390/configure: Regenerated. Index: glibc-2.22/config.h.in =================================================================== --- glibc-2.22.orig/config.h.in +++ glibc-2.22/config.h.in @@ -91,6 +91,9 @@ /* Define if assembler supports AVX512. */ #undef HAVE_AVX512_ASM_SUPPORT +/* Define if assembler supports vector instructions on S390. */ +#undef HAVE_S390_VX_ASM_SUPPORT + /* Define if assembler supports Intel MPX. */ #undef HAVE_MPX_SUPPORT Index: glibc-2.22/sysdeps/s390/configure =================================================================== --- glibc-2.22.orig/sysdeps/s390/configure +++ glibc-2.22/sysdeps/s390/configure @@ -104,5 +104,44 @@ if test "$enable_lock_elision" = yes && critic_missing="$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 Index: glibc-2.22/sysdeps/s390/configure.ac =================================================================== --- glibc-2.22.orig/sysdeps/s390/configure.ac +++ glibc-2.22/sysdeps/s390/configure.ac @@ -36,5 +36,32 @@ if test "$enable_lock_elision" = yes && critic_missing="$critic_missing The used GCC has no support for __builtin_tbegin, which is needed for lock-elision on target S390." fi +AC_CACHE_CHECK(for S390 vector instruction support, libc_cv_asm_s390_vx, [dnl +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 +dnl +dnl test, if assembler supports S390 vector instructions +if AC_TRY_COMMAND([${CC-cc} --shared conftest.c -o conftest.o &> /dev/null]) ; +then + libc_cv_asm_s390_vx=yes +else + libc_cv_asm_s390_vx=no +fi +rm -f conftest* ]) + +if test "$libc_cv_asm_s390_vx" = yes ; +then + AC_DEFINE(HAVE_S390_VX_ASM_SUPPORT) +else + AC_MSG_WARN([Use binutils with vector-support in order to use optimized implementations.]) +fi + test -n "$critic_missing" && AC_MSG_ERROR([ *** $critic_missing])
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