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authorH.J. Lu <hjl.tools@gmail.com>2021-08-20 05:47:52 -0700
committerH.J. Lu <hjl.tools@gmail.com>2021-08-24 07:05:35 -0700
commit528f9ff6bf69c2c0574a24ee475e31de38dcf060 (patch)
treeaaa9fd67fd89411f8da2f1e77a7eefb014dd021c /sysdeps/x86_64/configure.ac
parent5359c3bc91cc509bcd30bbb8d951848e0280f325 (diff)
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x86-64: Remove assembler AVX512DQ check
The minimum GNU binutils requirement is 2.25 which supports AVX512DQ.
Remove assembler AVX512DQ check.
Diffstat (limited to 'sysdeps/x86_64/configure.ac')
-rw-r--r--sysdeps/x86_64/configure.ac15
1 files changed, 0 insertions, 15 deletions
diff --git a/sysdeps/x86_64/configure.ac b/sysdeps/x86_64/configure.ac
index 41baed6999..29e14033c0 100644
--- a/sysdeps/x86_64/configure.ac
+++ b/sysdeps/x86_64/configure.ac
@@ -1,21 +1,6 @@
 GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
 # Local configure fragment for sysdeps/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 -mprefer-vector-width=128 works.
 AC_CACHE_CHECK(-mprefer-vector-width=128, libc_cv_cc_mprefer_vector_width, [dnl
 LIBC_TRY_CC_OPTION([-mprefer-vector-width=128],