104 lines
2.6 KiB
Rust
104 lines
2.6 KiB
Rust
//! Test command for testing the code generator pipeline
|
|
//!
|
|
//! The `compile` test command runs each function through the full code generator pipeline
|
|
|
|
use cretonne::binemit;
|
|
use cretonne::ir;
|
|
use cretonne;
|
|
use cton_reader::TestCommand;
|
|
use filetest::subtest::{SubTest, Context, Result};
|
|
use std::borrow::Cow;
|
|
use utils::pretty_error;
|
|
|
|
struct TestCompile;
|
|
|
|
pub fn subtest(parsed: &TestCommand) -> Result<Box<SubTest>> {
|
|
assert_eq!(parsed.command, "compile");
|
|
if !parsed.options.is_empty() {
|
|
Err(format!("No options allowed on {}", parsed))
|
|
} else {
|
|
Ok(Box::new(TestCompile))
|
|
}
|
|
}
|
|
|
|
impl SubTest for TestCompile {
|
|
fn name(&self) -> Cow<str> {
|
|
Cow::from("compile")
|
|
}
|
|
|
|
fn is_mutating(&self) -> bool {
|
|
true
|
|
}
|
|
|
|
fn needs_isa(&self) -> bool {
|
|
true
|
|
}
|
|
|
|
fn run(&self, func: Cow<ir::Function>, context: &Context) -> Result<()> {
|
|
let isa = context.isa.expect("compile needs an ISA");
|
|
|
|
// Create a compilation context, and drop in the function.
|
|
let mut comp_ctx = cretonne::Context::new();
|
|
comp_ctx.func = func.into_owned();
|
|
|
|
let code_size = comp_ctx.compile(isa).map_err(|e| {
|
|
pretty_error(&comp_ctx.func, context.isa, e)
|
|
})?;
|
|
|
|
dbg!(
|
|
"Generated {} bytes of code:\n{}",
|
|
code_size,
|
|
comp_ctx.func.display(isa)
|
|
);
|
|
|
|
// Finally verify that the returned code size matches the emitted bytes.
|
|
let mut sink = SizeSink { offset: 0 };
|
|
binemit::emit_function(
|
|
&comp_ctx.func,
|
|
|func, inst, div, sink| isa.emit_inst(func, inst, div, sink),
|
|
&mut sink,
|
|
);
|
|
|
|
if sink.offset != code_size {
|
|
return Err(format!(
|
|
"Expected code size {}, got {}",
|
|
code_size,
|
|
sink.offset
|
|
));
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
}
|
|
|
|
// Code sink that simply counts bytes.
|
|
struct SizeSink {
|
|
offset: binemit::CodeOffset,
|
|
}
|
|
|
|
impl binemit::CodeSink for SizeSink {
|
|
fn offset(&self) -> binemit::CodeOffset {
|
|
self.offset
|
|
}
|
|
|
|
fn put1(&mut self, _: u8) {
|
|
self.offset += 1;
|
|
}
|
|
|
|
fn put2(&mut self, _: u16) {
|
|
self.offset += 2;
|
|
}
|
|
|
|
fn put4(&mut self, _: u32) {
|
|
self.offset += 4;
|
|
}
|
|
|
|
fn put8(&mut self, _: u64) {
|
|
self.offset += 8;
|
|
}
|
|
|
|
fn reloc_ebb(&mut self, _reloc: binemit::Reloc, _ebb_offset: binemit::CodeOffset) {}
|
|
fn reloc_external(&mut self, _reloc: binemit::Reloc, _name: &ir::ExternalName) {}
|
|
fn reloc_jt(&mut self, _reloc: binemit::Reloc, _jt: ir::JumpTable) {}
|
|
}
|