diff options
Diffstat (limited to 'sysdeps/x86_64/configure.ac')
| -rw-r--r-- | sysdeps/x86_64/configure.ac | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/sysdeps/x86_64/configure.ac b/sysdeps/x86_64/configure.ac index b39309e456..7d8aaafc0c 100644 --- a/sysdeps/x86_64/configure.ac +++ b/sysdeps/x86_64/configure.ac @@ -1,25 +1,30 @@ GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. # Local configure fragment for sysdeps/x86_64. -dnl Check if asm supports AVX512. -AC_CACHE_CHECK(for AVX512 support in assembler, libc_cv_asm_avx512, [dnl +dnl Accept as 2.24 or newer for AVX512 load and store. +AC_CHECK_PROG_VER(AS, $AS, --version, + [GNU assembler.* \([0-9]*\.[0-9.]*\)], + [2.2[4-9]*|2.[3-9][0-9]*|[3-9].*|[1-9][0-9]*], + critic_missing="$critic_missing The program AS is required in version >= 2.24 for target x86_64.") + +dnl Check if asm supports AVX512DQ. +AC_CACHE_CHECK(for AVX512DQ support in assembler, libc_cv_asm_avx512dq, [dnl cat > conftest.s <<\EOF - vmovdqu64 %zmm0, (%rsp) vandpd (%rax), %zmm6, %zmm1 EOF if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then - libc_cv_asm_avx512=yes + libc_cv_asm_avx512dq=yes else - libc_cv_asm_avx512=no + libc_cv_asm_avx512dq=no fi rm -f conftest*]) -if test $libc_cv_asm_avx512 = yes; then - AC_DEFINE(HAVE_AVX512_ASM_SUPPORT) +if test $libc_cv_asm_avx512dq = yes; then + AC_DEFINE(HAVE_AVX512DQ_ASM_SUPPORT) fi dnl Check if -mavx512f works. AC_CACHE_CHECK(for AVX512 support, libc_cv_cc_avx512, [dnl -LIBC_TRY_CC_OPTION([-mavx512f], [libc_cv_cc_avx512=$libc_cv_asm_avx512], [libc_cv_cc_avx512=no]) +LIBC_TRY_CC_OPTION([-mavx512f], [libc_cv_cc_avx512=$libc_cv_asm_avx512dq], [libc_cv_cc_avx512=no]) ]) if test $libc_cv_cc_avx512 = yes; then AC_DEFINE(HAVE_AVX512_SUPPORT) @@ -48,4 +53,6 @@ fi dnl It is always possible to access static and hidden symbols in an dnl position independent way. AC_DEFINE(PI_STATIC_AND_HIDDEN) -# work around problem with autoconf and empty lines at the end of files + +test -n "$critic_missing" && AC_MSG_ERROR([ +*** $critic_missing]) |