97 lines
3.6 KiB
Rust
97 lines
3.6 KiB
Rust
//! Test command for running CLIF files and verifying their results
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//!
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//! The `run` test command compiles each function on the host machine and executes it
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use crate::function_runner::SingleFunctionCompiler;
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use crate::runtest_environment::RuntestEnvironment;
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use crate::subtest::{Context, SubTest};
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use cranelift_codegen::ir;
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use cranelift_codegen::ir::ArgumentPurpose;
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use cranelift_reader::parse_run_command;
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use cranelift_reader::TestCommand;
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use log::trace;
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use std::borrow::Cow;
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use target_lexicon::Architecture;
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struct TestRun;
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pub fn subtest(parsed: &TestCommand) -> anyhow::Result<Box<dyn SubTest>> {
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assert_eq!(parsed.command, "run");
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if !parsed.options.is_empty() {
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anyhow::bail!("No options allowed on {}", parsed);
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}
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Ok(Box::new(TestRun))
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}
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impl SubTest for TestRun {
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fn name(&self) -> &'static str {
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"run"
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}
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fn is_mutating(&self) -> bool {
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false
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}
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fn needs_isa(&self) -> bool {
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true
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}
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fn run(&self, func: Cow<ir::Function>, context: &Context) -> anyhow::Result<()> {
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// If this test requests to run on a completely different
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// architecture than the host platform then we skip it entirely,
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// since we won't be able to natively execute machine code.
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let requested_arch = context.isa.unwrap().triple().architecture;
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if requested_arch != Architecture::host() {
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println!(
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"skipped {}: host can't run {:?} programs",
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context.file_path, requested_arch
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);
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return Ok(());
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}
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let test_env = RuntestEnvironment::parse(&context.details.comments[..])?;
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let mut compiler = SingleFunctionCompiler::with_host_isa(context.flags.clone());
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for comment in context.details.comments.iter() {
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if let Some(command) = parse_run_command(comment.text, &func.signature)? {
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trace!("Parsed run command: {}", command);
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// Note that here we're also explicitly ignoring `context.isa`,
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// regardless of what's requested. We want to use the native
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// host ISA no matter what here, so the ISA listed in the file
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// is only used as a filter to not run into situations like
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// running x86_64 code on aarch64 platforms.
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let compiled_fn = compiler.compile(func.clone().into_owned())?;
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command
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.run(|_, run_args| {
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let runtime_struct = test_env.runtime_struct();
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let first_arg_is_vmctx = func
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.signature
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.params
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.first()
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.map(|p| p.purpose == ArgumentPurpose::VMContext)
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.unwrap_or(false);
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if !first_arg_is_vmctx && test_env.is_active() {
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return Err(concat!(
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"This test requests a heap, but the first argument is not `i64 vmctx`.\n",
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"See docs/testing.md for more info on using heap annotations."
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).to_string());
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}
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let mut args = Vec::with_capacity(run_args.len());
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if test_env.is_active() {
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args.push(runtime_struct.pointer(context.isa.unwrap().pointer_type()));
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}
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args.extend_from_slice(run_args);
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Ok(compiled_fn.call(&args))
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})
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.map_err(|s| anyhow::anyhow!("{}", s))?;
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}
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}
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Ok(())
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}
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}
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