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aa4de9cea5
It checks AVX-512 assembler support first and sets libc_cv_cc_avx512 to $libc_cv_asm_avx512, instead of yes. GCC won't support AVX-512 if assembler doesn't support it. * sysdeps/x86_64/configure.ac: Check AVX-512 assembler support first. Disable AVX-512 GCC support if assembler doesn't support it. * sysdeps/x86_64/configure: Regenerated.
228 lines
6.9 KiB
Plaintext
228 lines
6.9 KiB
Plaintext
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# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
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# -------------------------------------------------------
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# Tests whether HEADER exists and can be compiled using the include files in
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# INCLUDES, setting the cache variable VAR accordingly.
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ac_fn_c_check_header_compile ()
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{
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as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
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$as_echo_n "checking for $2... " >&6; }
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if eval \${$3+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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$4
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#include <$2>
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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eval "$3=yes"
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else
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eval "$3=no"
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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fi
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eval ac_res=\$$3
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
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$as_echo "$ac_res" >&6; }
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eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
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} # ac_fn_c_check_header_compile
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# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
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# Local configure fragment for sysdeps/x86_64.
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ac_fn_c_check_header_compile "$LINENO" "cpuid.h" "ac_cv_header_cpuid_h" "/* No default includes. */
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"
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if test "x$ac_cv_header_cpuid_h" = xyes; then :
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else
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as_fn_error $? "gcc must provide the <cpuid.h> header" "$LINENO" 5
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SSE4 support" >&5
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$as_echo_n "checking for SSE4 support... " >&6; }
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if ${libc_cv_cc_sse4+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if { ac_try='${CC-cc} -msse4 -xc /dev/null -S -o /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then :
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libc_cv_cc_sse4=yes
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else
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libc_cv_cc_sse4=no
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fi
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_sse4" >&5
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$as_echo "$libc_cv_cc_sse4" >&6; }
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if test $libc_cv_cc_sse4 = yes; then
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$as_echo "#define HAVE_SSE4_SUPPORT 1" >>confdefs.h
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fi
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config_vars="$config_vars
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config-cflags-sse4 = $libc_cv_cc_sse4"
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX support" >&5
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$as_echo_n "checking for AVX support... " >&6; }
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if ${libc_cv_cc_avx+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if { ac_try='${CC-cc} -mavx -xc /dev/null -S -o /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then :
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libc_cv_cc_avx=yes
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else
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libc_cv_cc_avx=no
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fi
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_avx" >&5
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$as_echo "$libc_cv_cc_avx" >&6; }
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if test $libc_cv_cc_avx = yes; then
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$as_echo "#define HAVE_AVX_SUPPORT 1" >>confdefs.h
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fi
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config_vars="$config_vars
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config-cflags-avx = $libc_cv_cc_avx"
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX512 support in assembler" >&5
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$as_echo_n "checking for AVX512 support in assembler... " >&6; }
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if ${libc_cv_asm_avx512+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat > conftest.s <<\EOF
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vmovdqu64 %zmm0, (%rsp)
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EOF
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if { ac_try='${CC-cc} -c $ASFLAGS conftest.s 1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then
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libc_cv_asm_avx512=yes
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else
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libc_cv_asm_avx512=no
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fi
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rm -f conftest*
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_avx512" >&5
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$as_echo "$libc_cv_asm_avx512" >&6; }
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if test $libc_cv_asm_avx512 == yes; then
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$as_echo "#define HAVE_AVX512_ASM_SUPPORT 1" >>confdefs.h
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX512 support" >&5
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$as_echo_n "checking for AVX512 support... " >&6; }
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if ${libc_cv_cc_avx512+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if { ac_try='${CC-cc} -mavx512f -xc /dev/null -S -o /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then :
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libc_cv_cc_avx512=$libc_cv_asm_avx512
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else
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libc_cv_cc_avx512=no
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fi
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_avx512" >&5
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$as_echo "$libc_cv_cc_avx512" >&6; }
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if test $libc_cv_cc_avx512 = yes; then
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$as_echo "#define HAVE_AVX512_SUPPORT 1" >>confdefs.h
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fi
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config_vars="$config_vars
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config-cflags-avx512 = $libc_cv_cc_avx512"
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX encoding of SSE instructions" >&5
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$as_echo_n "checking for AVX encoding of SSE instructions... " >&6; }
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if ${libc_cv_cc_sse2avx+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if { ac_try='${CC-cc} -msse2avx -xc /dev/null -S -o /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then :
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libc_cv_cc_sse2avx=yes
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else
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libc_cv_cc_sse2avx=no
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fi
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_sse2avx" >&5
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$as_echo "$libc_cv_cc_sse2avx" >&6; }
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if test $libc_cv_cc_sse2avx = yes; then
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$as_echo "#define HAVE_SSE2AVX_SUPPORT 1" >>confdefs.h
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fi
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config_vars="$config_vars
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config-cflags-sse2avx = $libc_cv_cc_sse2avx"
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for FMA4 support" >&5
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$as_echo_n "checking for FMA4 support... " >&6; }
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if ${libc_cv_cc_fma4+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if { ac_try='${CC-cc} -mfma4 -xc /dev/null -S -o /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then :
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libc_cv_cc_fma4=yes
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else
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libc_cv_cc_fma4=no
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fi
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_fma4" >&5
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$as_echo "$libc_cv_cc_fma4" >&6; }
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if test $libc_cv_cc_fma4 = yes; then
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$as_echo "#define HAVE_FMA4_SUPPORT 1" >>confdefs.h
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fi
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config_vars="$config_vars
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have-mfma4 = $libc_cv_cc_fma4"
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -mno-vzeroupper support" >&5
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$as_echo_n "checking for -mno-vzeroupper support... " >&6; }
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if ${libc_cv_cc_novzeroupper+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if { ac_try='${CC-cc} -mno-vzeroupper -xc /dev/null -S -o /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then :
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libc_cv_cc_novzeroupper=yes
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else
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libc_cv_cc_novzeroupper=no
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fi
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_novzeroupper" >&5
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$as_echo "$libc_cv_cc_novzeroupper" >&6; }
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config_vars="$config_vars
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config-cflags-novzeroupper = $libc_cv_cc_novzeroupper"
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$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
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# work around problem with autoconf and empty lines at the end of files
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