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peepmatic: Make the results of match operations a smaller and more cache friendly

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This commit is contained in:
Nick Fitzgerald
2020-05-07 12:15:50 -07:00
parent 9a1f8038b7
commit 469104c4d3
14 changed files with 580 additions and 149 deletions
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15
cranelift/peepmatic/src/dot_fmt.rs
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@@ -12,36 +12,37 @@ use peepmatic_runtime::{
};
use std::convert::TryFrom;
use std::io::{self, Write};
use std::num::NonZeroU32;
#[derive(Debug)]
pub(crate) struct PeepholeDotFmt<'a>(pub(crate) &'a PathInterner, pub(crate) &'a IntegerInterner);
impl DotFmt<Option<u32>, linear::MatchOp, Vec<linear::Action>> for PeepholeDotFmt<'_> {
impl DotFmt<linear::MatchResult, linear::MatchOp, Vec<linear::Action>> for PeepholeDotFmt<'_> {
fn fmt_transition(
&self,
w: &mut impl Write,
from: Option<&linear::MatchOp>,
input: &Option<u32>,
input: &linear::MatchResult,
_to: Option<&linear::MatchOp>,
) -> io::Result<()> {
let from = from.expect("we should have match op for every state");
if let Some(x) = input {
if let Some(x) = input.ok().map(|x| x.get()) {
match from {
linear::MatchOp::Opcode { .. } => {
let opcode =
Operator::try_from(*x).expect("we shouldn't generate non-opcode edges");
Operator::try_from(x).expect("we shouldn't generate non-opcode edges");
write!(w, "{}", opcode)
}
linear::MatchOp::ConditionCode { .. } => {
let cc =
ConditionCode::try_from(*x).expect("we shouldn't generate non-CC edges");
ConditionCode::try_from(x).expect("we shouldn't generate non-CC edges");
write!(w, "{}", cc)
}
linear::MatchOp::IntegerValue { .. } => {
let x = self.1.lookup(IntegerId(*x));
let x = self.1.lookup(IntegerId(NonZeroU32::new(x).unwrap()));
write!(w, "{}", x)
}
_ => write!(w, "{}", x),
_ => write!(w, "Ok({})", x),
}
} else {
write!(w, "(else)")