bjoernager/rust
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Update dataflow analyses to use new interface

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This commit is contained in:
Dylan MacKenzie 2020-08-28 13:26:25 -07:00
parent 3233fb18a8
commit b19b8ea611
9 changed files with 106 additions and 143 deletions
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17
compiler/rustc_mir/src/transform/rustc_peek.rs
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@ -1,4 +1,6 @@
use rustc_ast as ast;
use std::borrow::Borrow;
use rustc_ast::ast;
use rustc_span::symbol::sym;
use rustc_span::Span;
use rustc_target::spec::abi::Abi;
@ -16,7 +18,7 @@ use crate::dataflow::impls::{
use crate::dataflow::move_paths::{HasMoveData, MoveData};
use crate::dataflow::move_paths::{LookupResult, MovePathIndex};
use crate::dataflow::MoveDataParamEnv;
use crate::dataflow::{Analysis, Results, ResultsCursor};
use crate::dataflow::{Analysis, JoinSemiLattice, Results, ResultsCursor};
pub struct SanityCheck;
@ -248,25 +250,26 @@ pub trait RustcPeekAt<'tcx>: Analysis<'tcx> {
&self,
tcx: TyCtxt<'tcx>,
place: mir::Place<'tcx>,
flow_state: &BitSet<Self::Idx>,
flow_state: &Self::Domain,
call: PeekCall,
);
}
impl<'tcx, A> RustcPeekAt<'tcx> for A
impl<'tcx, A, D> RustcPeekAt<'tcx> for A
where
A: Analysis<'tcx, Idx = MovePathIndex> + HasMoveData<'tcx>,
A: Analysis<'tcx, Domain = D> + HasMoveData<'tcx>,
D: JoinSemiLattice + Clone + Borrow<BitSet<MovePathIndex>>,
{
fn peek_at(
&self,
tcx: TyCtxt<'tcx>,
place: mir::Place<'tcx>,
flow_state: &BitSet<Self::Idx>,
flow_state: &Self::Domain,
call: PeekCall,
) {
match self.move_data().rev_lookup.find(place.as_ref()) {
LookupResult::Exact(peek_mpi) => {
let bit_state = flow_state.contains(peek_mpi);
let bit_state = flow_state.borrow().contains(peek_mpi);
debug!("rustc_peek({:?} = &{:?}) bit_state: {}", call.arg, place, bit_state);
if !bit_state {
tcx.sess.span_err(call.span, "rustc_peek: bit not set");