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Add compiler check for RISCV vector support

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Martin Kroeker 2022-05-03 23:27:50 +02:00 committed by GitHub
parent 06d1dd6ba8
commit d328636e58
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1 changed files with 24 additions and 0 deletions
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c_check
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@ -270,6 +270,29 @@ if (($architecture eq "x86") || ($architecture eq "x86_64")) {
}
}
$no_rv64gv= 0;
if (($architecture eq "riscv64")) {
eval "use File::Temp qw(tempfile)";
if ($@){
warn "could not load PERL module File::Temp, so could not check compiler compatibility with the RISCV vector extension";
$no_rv64gv = 0;
} else {
# $tmpf = new File::Temp( UNLINK => 1 );
($fh,$tmpf) = tempfile( SUFFIX => '.c' , UNLINK => 1 );
$code = '"vsetvli zero, zero, e8, m1\n"';
print $fh "int main(void){ __asm__ volatile($code); }\n";
$args = " -march=rv64gv -c -o $tmpf.o $tmpf";
my @cmd = ("$compiler_name $flags $args >/dev/null 2>/dev/null");
system(@cmd) == 0;
if ($? != 0) {
$no_rv64gv = 1;
} else {
$no_rv64gv = 0;
}
unlink("$tmpf.o");
}
}
$c11_atomics = 0;
if ($data =~ /HAVE_C11/) {
eval "use File::Temp qw(tempfile)";
@ -392,6 +415,7 @@ 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_RV64GV=1\n" if $no_rv64gv eq 1;
print MAKEFILE "NO_AVX512=1\n" if $no_avx512 eq 1;
print MAKEFILE "NO_AVX2=1\n" if $no_avx2 eq 1;
print MAKEFILE "OLDGCC=1\n" if $oldgcc eq 1;