2002-09-29 10:38:40 +00:00
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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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2012-03-19 19:58:05 +00:00
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# Local configure fragment for sysdeps/x86_64.
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2016-07-01 12:54:43 +00:00
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dnl Accept as 2.24 or newer for AVX512 load and store.
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AC_CHECK_PROG_VER(AS, $AS, --version,
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[GNU assembler.* \([0-9]*\.[0-9.]*\)],
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[2.2[4-9]*|2.[3-9][0-9]*|[3-9].*|[1-9][0-9]*],
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critic_missing="$critic_missing The program AS is required in version >= 2.24 for target x86_64.")
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dnl Check if asm supports AVX512DQ.
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AC_CACHE_CHECK(for AVX512DQ support in assembler, libc_cv_asm_avx512dq, [dnl
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2014-03-13 18:10:22 +00:00
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cat > conftest.s <<\EOF
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2015-06-11 10:50:07 +00:00
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vandpd (%rax), %zmm6, %zmm1
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2014-03-13 18:10:22 +00:00
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EOF
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if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
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2016-07-01 12:54:43 +00:00
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libc_cv_asm_avx512dq=yes
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2014-03-13 18:10:22 +00:00
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else
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2016-07-01 12:54:43 +00:00
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libc_cv_asm_avx512dq=no
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2014-03-13 18:10:22 +00:00
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fi
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rm -f conftest*])
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2016-07-01 12:54:43 +00:00
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if test $libc_cv_asm_avx512dq = yes; then
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AC_DEFINE(HAVE_AVX512DQ_ASM_SUPPORT)
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2014-03-13 18:10:22 +00:00
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fi
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2014-03-14 15:51:25 +00:00
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dnl Check if -mavx512f works.
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AC_CACHE_CHECK(for AVX512 support, libc_cv_cc_avx512, [dnl
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2016-07-01 12:54:43 +00:00
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LIBC_TRY_CC_OPTION([-mavx512f], [libc_cv_cc_avx512=$libc_cv_asm_avx512dq], [libc_cv_cc_avx512=no])
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2014-03-14 15:51:25 +00:00
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])
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if test $libc_cv_cc_avx512 = yes; then
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AC_DEFINE(HAVE_AVX512_SUPPORT)
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fi
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LIBC_CONFIG_VAR([config-cflags-avx512], [$libc_cv_cc_avx512])
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2014-04-01 17:16:04 +00:00
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dnl Check whether asm supports Intel MPX
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AC_CACHE_CHECK(for Intel MPX support, libc_cv_asm_mpx, [dnl
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cat > conftest.s <<\EOF
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bndmov %bnd0,(%rsp)
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EOF
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if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
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libc_cv_asm_mpx=yes
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else
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libc_cv_asm_mpx=no
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fi
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rm -f conftest*])
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2016-04-10 00:02:48 +00:00
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if test $libc_cv_asm_mpx = yes; then
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2014-04-01 17:16:04 +00:00
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AC_DEFINE(HAVE_MPX_SUPPORT)
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fi
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2015-06-09 11:25:49 +00:00
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if test x"$build_mathvec" = xnotset; then
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build_mathvec=yes
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fi
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2002-09-29 10:38:40 +00:00
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dnl It is always possible to access static and hidden symbols in an
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dnl position independent way.
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AC_DEFINE(PI_STATIC_AND_HIDDEN)
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2016-07-01 12:54:43 +00:00
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test -n "$critic_missing" && AC_MSG_ERROR([
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*** $critic_missing])
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