bjoernager/rust
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Make MIR basic blocks field public

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This makes it possible to mutably borrow different fields of the MIR
body without resorting to methods like `basic_blocks_local_decls_mut_and_var_debug_info`.

To preserve validity of control flow graph caches in the presence of
modifications, a new struct `BasicBlocks` wraps together basic blocks
and control flow graph caches.

The `BasicBlocks` dereferences to `IndexVec<BasicBlock, BasicBlockData>`.
On the other hand a mutable access requires explicit `as_mut()` call.
This commit is contained in:
Tomasz Miąsko 2022-07-04 00:00:00 +00:00
parent fac8fa5672
commit c9dd1d9983
21 changed files with 213 additions and 195 deletions
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3
compiler/rustc_mir_transform/src/coverage/spans.rs
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@ -321,7 +321,8 @@ impl<'a, 'tcx> CoverageSpans<'a, 'tcx> {
}
fn mir_to_initial_sorted_coverage_spans(&self) -> Vec<CoverageSpan> {
let mut initial_spans = Vec::<CoverageSpan>::with_capacity(self.mir_body.num_nodes() * 2);
let mut initial_spans =
Vec::<CoverageSpan>::with_capacity(self.mir_body.basic_blocks.len() * 2);
for (bcb, bcb_data) in self.basic_coverage_blocks.iter_enumerated() {
initial_spans.extend(self.bcb_to_initial_coverage_spans(bcb, bcb_data));
}