M-Labs/nac3
M-Labs/nac3
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standalone: Add command line flags for target properties

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For testing codegen for different platforms on the host system.
This commit is contained in:
David Mak 2023-09-12 14:41:34 +08:00 committed by David Mak
parent 048fcb0a69
commit f59d45805f
1 changed files with 36 additions and 4 deletions
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40
nac3standalone/src/main.rs
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@ -49,6 +49,18 @@ struct CommandLineArgs {
/// Whether to emit LLVM IR at the end of every module.
#[arg(long, default_value_t = false)]
emit_llvm: bool,
/// The target triple to compile for.
#[arg(long)]
triple: Option<String>,
/// The target CPU to compile for.
#[arg(long)]
mcpu: Option<String>,
/// Additional target features to enable/disable, specified using the `+`/`-` prefixes.
#[arg(long)]
target_features: Option<String>,
}
fn handle_typevar_definition(
@ -177,7 +189,24 @@ fn handle_assignment_pattern(
fn main() {
let cli = CommandLineArgs::parse();
let CommandLineArgs { file_name, threads, opt_level, emit_llvm } = cli;
let CommandLineArgs {
file_name,
threads,
opt_level,
emit_llvm,
triple,
mcpu,
target_features,
} = cli;
Target::initialize_all(&InitializationConfig::default());
let host_target_machine = CodeGenTargetMachineOptions::from_host();
let triple = triple.unwrap_or(host_target_machine.triple.clone());
let mcpu = mcpu
.map(|arg| if arg == "native" { host_target_machine.cpu.clone() } else { arg })
.unwrap_or_default();
let target_features = target_features.unwrap_or_default();
let opt_level = match opt_level {
0 => OptimizationLevel::None,
1 => OptimizationLevel::Less,
@ -186,8 +215,6 @@ fn main() {
_ => OptimizationLevel::Aggressive,
};
Target::initialize_all(&InitializationConfig::default());
let program = match fs::read_to_string(file_name.clone()) {
Ok(program) => program,
Err(err) => {
@ -272,7 +299,12 @@ fn main() {
let llvm_options = CodeGenLLVMOptions {
opt_level,
target: CodeGenTargetMachineOptions::from_host_triple(),
target: CodeGenTargetMachineOptions {
triple,
cpu: mcpu,
features: target_features,
..host_target_machine
},
emit_llvm,
};