forked from M-Labs/nac3
standalone: Add command line flags for target properties
For testing codegen for different platforms on the host system.
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@ -49,6 +49,18 @@ struct CommandLineArgs {
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/// Whether to emit LLVM IR at the end of every module.
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#[arg(long, default_value_t = false)]
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emit_llvm: bool,
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/// The target triple to compile for.
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#[arg(long)]
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triple: Option<String>,
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/// The target CPU to compile for.
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#[arg(long)]
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mcpu: Option<String>,
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/// Additional target features to enable/disable, specified using the `+`/`-` prefixes.
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#[arg(long)]
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target_features: Option<String>,
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}
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fn handle_typevar_definition(
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@ -177,7 +189,24 @@ fn handle_assignment_pattern(
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fn main() {
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let cli = CommandLineArgs::parse();
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let CommandLineArgs { file_name, threads, opt_level, emit_llvm } = cli;
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let CommandLineArgs {
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file_name,
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threads,
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opt_level,
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emit_llvm,
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triple,
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mcpu,
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target_features,
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} = cli;
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Target::initialize_all(&InitializationConfig::default());
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let host_target_machine = CodeGenTargetMachineOptions::from_host();
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let triple = triple.unwrap_or(host_target_machine.triple.clone());
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let mcpu = mcpu
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.map(|arg| if arg == "native" { host_target_machine.cpu.clone() } else { arg })
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.unwrap_or_default();
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let target_features = target_features.unwrap_or_default();
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let opt_level = match opt_level {
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0 => OptimizationLevel::None,
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1 => OptimizationLevel::Less,
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@ -186,8 +215,6 @@ fn main() {
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_ => OptimizationLevel::Aggressive,
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};
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Target::initialize_all(&InitializationConfig::default());
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let program = match fs::read_to_string(file_name.clone()) {
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Ok(program) => program,
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Err(err) => {
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@ -272,7 +299,12 @@ fn main() {
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let llvm_options = CodeGenLLVMOptions {
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opt_level,
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target: CodeGenTargetMachineOptions::from_host_triple(),
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target: CodeGenTargetMachineOptions {
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triple,
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cpu: mcpu,
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features: target_features,
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..host_target_machine
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},
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emit_llvm,
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};
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