bjoernager/rust
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This commit is contained in:
Gary Guo 2022-11-15 17:00:40 +00:00
parent e3f2edc75b
commit 3af45d6c57
7 changed files with 40 additions and 31 deletions
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4
compiler/rustc_middle/src/mir/syntax.rs
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@ -523,7 +523,7 @@ pub struct CopyNonOverlapping<'tcx> {
/// The basic block pointed to by a `Cleanup` unwind action must have its `cleanup` flag set.
/// `cleanup` basic blocks have a couple restrictions:
/// 1. All `unwind` fields in them must be `UnwindAction::Terminate` or `UnwindAction::Unreachable`.
/// 2. `Return` terminators are not allowed in them. `Terminate` and `Unwind` terminators are.
/// 2. `Return` terminators are not allowed in them. `Terminate` and `Resume` terminators are.
/// 3. All other basic blocks (in the current body) that are reachable from `cleanup` basic blocks
/// must also be `cleanup`. This is a part of the type system and checked statically, so it is
/// still an error to have such an edge in the CFG even if it's known that it won't be taken at
@ -721,8 +721,6 @@ pub enum TerminatorKind<'tcx> {
/// consider it in borrowck. We don't want to accept programs which
/// pass borrowck only when `panic=abort` or some assertions are disabled
/// due to release vs. debug mode builds.
/// This field does not necessary have to be `UnwindAction::Cleanup` because
/// of the `remove_noop_landing_pads` and `abort_unwinding_calls` passes.
unwind: UnwindAction,
},