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| author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
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| committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
| commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
| tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/sysdeps/x86_64/configure.ac | |
| parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
| download | glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.tar.gz glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.tar.xz glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.zip | |
Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/sysdeps/x86_64/configure.ac')
| -rw-r--r-- | REORG.TODO/sysdeps/x86_64/configure.ac | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/x86_64/configure.ac b/REORG.TODO/sysdeps/x86_64/configure.ac new file mode 100644 index 0000000000..7d8aaafc0c --- /dev/null +++ b/REORG.TODO/sysdeps/x86_64/configure.ac @@ -0,0 +1,58 @@ +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. +# Local configure fragment for sysdeps/x86_64. + +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="$critic_missing The program AS is required in version >= 2.24 for target x86_64.") + +dnl Check if asm supports AVX512DQ. +AC_CACHE_CHECK(for AVX512DQ support in assembler, libc_cv_asm_avx512dq, [dnl +cat > conftest.s <<\EOF + vandpd (%rax), %zmm6, %zmm1 +EOF +if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then + libc_cv_asm_avx512dq=yes +else + libc_cv_asm_avx512dq=no +fi +rm -f conftest*]) +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_avx512dq], [libc_cv_cc_avx512=no]) +]) +if test $libc_cv_cc_avx512 = yes; then + AC_DEFINE(HAVE_AVX512_SUPPORT) +fi +LIBC_CONFIG_VAR([config-cflags-avx512], [$libc_cv_cc_avx512]) + +dnl Check whether asm supports Intel MPX +AC_CACHE_CHECK(for Intel MPX support, libc_cv_asm_mpx, [dnl +cat > conftest.s <<\EOF + bndmov %bnd0,(%rsp) +EOF +if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then + libc_cv_asm_mpx=yes +else + libc_cv_asm_mpx=no +fi +rm -f conftest*]) +if test $libc_cv_asm_mpx = yes; then + AC_DEFINE(HAVE_MPX_SUPPORT) +fi + +if test x"$build_mathvec" = xnotset; then + build_mathvec=yes +fi + +dnl It is always possible to access static and hidden symbols in an +dnl position independent way. +AC_DEFINE(PI_STATIC_AND_HIDDEN) + +test -n "$critic_missing" && AC_MSG_ERROR([ +*** $critic_missing]) |