Disable AVX512 (Skylake X) support if the build system is too old
@@ -201,6 +201,21 @@ $architecture = zarch if ($data =~ /ARCH_ZARCH/);
$binformat = bin32;
$binformat = bin64 if ($data =~ /BINARY_64/);
+$no_avx512= 0;
+if (($architecture eq "x86") || ($architecture eq "x86_64")) {
+ $code = '"vaddps %zmm1, %zmm0, %zmm0"';
+ print $tmpf "void main(void){ __asm__ volatile($code); }\n";
+ $args = " -o $tmpf.o -x c $tmpf";
+ my @cmd = ("$compiler_name $args");
+ system(@cmd) == 0;
+ if ($? != 0) {
+ $no_avx512 = 1;
+ } else {
+ $no_avx512 = 0;
+ }
+ unlink("tmpf.o");
+}
+
$data = `$compiler_name -S ctest1.c && grep globl ctest1.s | head -n 1 && rm -f ctest1.s`;
$data =~ /globl\s([_\.]*)(.*)/;
@@ -288,6 +303,7 @@ print MAKEFILE "CROSS=1\n" if $cross != 0;
print MAKEFILE "CEXTRALIB=$linker_L $linker_l $linker_a\n";
print MAKEFILE "HAVE_MSA=1\n" if $have_msa eq 1;
print MAKEFILE "MSA_FLAGS=$msa_flags\n" if $have_msa eq 1;
+print MAKEFILE "NO_AVX512=1\n" if $no_avx512 eq 1;
$os =~ tr/[a-z]/[A-Z]/;
$architecture =~ tr/[a-z]/[A-Z]/;
