forked from M-Labs/nac3
standalone: Expose flags in command-line
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parent
3993a5cf3f
commit
474f9050ce
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@ -41,6 +41,14 @@ struct CommandLineArgs {
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/// The number of threads allocated to processing the source file.
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#[arg(default_value_t = 1)]
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threads: u32,
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/// The level to optimize the LLVM IR.
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#[arg(short = 'O', default_value_t = 2, value_parser = clap::value_parser!(u32).range(0..=3))]
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opt_level: u32,
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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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}
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fn handle_typevar_definition(
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@ -169,7 +177,14 @@ 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 } = cli;
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let CommandLineArgs { file_name, threads, opt_level, emit_llvm } = cli;
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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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2 => OptimizationLevel::Default,
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// The default behavior for -O<n> where n>3 defaults to O3 for both Clang and GCC
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_ => OptimizationLevel::Aggressive,
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};
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Target::initialize_all(&InitializationConfig::default());
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@ -256,8 +271,8 @@ fn main() {
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};
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let llvm_options = CodeGenLLVMOptions {
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opt_level: OptimizationLevel::Default,
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emit_llvm: false,
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opt_level,
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emit_llvm,
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};
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let task = CodeGenTask {
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subst: Default::default(),
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@ -322,7 +337,7 @@ fn main() {
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&triple,
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"",
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"",
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OptimizationLevel::Default,
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opt_level,
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RelocMode::Default,
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CodeModel::Default,
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)
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