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| author | Andrew Senkevich <andrew.senkevich@intel.com> | 2015-06-11 13:50:07 +0300 |
|---|---|---|
| committer | Andrew Senkevich <andrew.senkevich@intel.com> | 2015-06-11 13:50:07 +0300 |
| commit | 0724d898bb1c15872b1b59c01a9e9d9d74bb4f56 (patch) | |
| tree | 52543c1f75ef31f3955ad52f6cd83c24731e129c | |
| parent | 1477b3830740b272e36187e85a7207a09833012b (diff) | |
| download | glibc-0724d898bb1c15872b1b59c01a9e9d9d74bb4f56.zip glibc-0724d898bb1c15872b1b59c01a9e9d9d74bb4f56.tar.gz glibc-0724d898bb1c15872b1b59c01a9e9d9d74bb4f56.tar.bz2 | |
More strict check of AVX512 support in assembler.
Binutils 2.24 doesn't support some AVX512 instructions with ZMM
registers, so we need add more strict check.
* configure.ac: Added more strict check.
* configure: Regenerated.
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sysdeps/x86_64/configure | 1 | ||||
| -rw-r--r-- | sysdeps/x86_64/configure.ac | 1 |
3 files changed, 7 insertions, 0 deletions
@@ -1,3 +1,8 @@ +2015-06-11 Andrew Senkevich <andrew.senkevich@intel.com> + + * configure.ac: More strict check for AVX512 assembler support. + * configure: Regenerated. + 2015-06-11 Florian Weimer <fweimer@redhat.com> * nptl/pthread_key_create.c (__pthread_key_create): Fix typo in diff --git a/sysdeps/x86_64/configure b/sysdeps/x86_64/configure index 1493523..552f535 100644 --- a/sysdeps/x86_64/configure +++ b/sysdeps/x86_64/configure @@ -102,6 +102,7 @@ if ${libc_cv_asm_avx512+:} false; then : else cat > conftest.s <<\EOF vmovdqu64 %zmm0, (%rsp) + vandpd (%rax), %zmm6, %zmm1 EOF if { ac_try='${CC-cc} -c $ASFLAGS conftest.s 1>&5' { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 diff --git a/sysdeps/x86_64/configure.ac b/sysdeps/x86_64/configure.ac index 1c2b35f..e7208c9 100644 --- a/sysdeps/x86_64/configure.ac +++ b/sysdeps/x86_64/configure.ac @@ -27,6 +27,7 @@ dnl Check if asm supports AVX512. AC_CACHE_CHECK(for AVX512 support in assembler, libc_cv_asm_avx512, [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 |