diff options
Diffstat (limited to 'compiler/rustc_middle/src/mir/coverage.rs')
| -rw-r--r-- | compiler/rustc_middle/src/mir/coverage.rs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/compiler/rustc_middle/src/mir/coverage.rs b/compiler/rustc_middle/src/mir/coverage.rs index 08d377a86..ec5edceb2 100644 --- a/compiler/rustc_middle/src/mir/coverage.rs +++ b/compiler/rustc_middle/src/mir/coverage.rs @@ -17,6 +17,8 @@ rustc_index::newtype_index! { /// Note that LLVM handles counter IDs as `uint32_t`, so there is no need /// to use a larger representation on the Rust side. #[derive(HashStable)] + #[encodable] + #[orderable] #[max = 0xFFFF_FFFF] #[debug_format = "CounterId({})"] pub struct CounterId {} @@ -37,6 +39,8 @@ rustc_index::newtype_index! { /// Note that LLVM handles expression IDs as `uint32_t`, so there is no need /// to use a larger representation on the Rust side. #[derive(HashStable)] + #[encodable] + #[orderable] #[max = 0xFFFF_FFFF] #[debug_format = "ExpressionId({})"] pub struct ExpressionId {} @@ -72,6 +76,13 @@ impl Debug for CovTerm { #[derive(Clone, PartialEq, TyEncodable, TyDecodable, Hash, HashStable, TypeFoldable, TypeVisitable)] pub enum CoverageKind { + /// Marks a span that might otherwise not be represented in MIR, so that + /// coverage instrumentation can associate it with its enclosing block/BCB. + /// + /// Only used by the `InstrumentCoverage` pass, and has no effect during + /// codegen. + SpanMarker, + /// Marks the point in MIR control flow represented by a coverage counter. /// /// This is eventually lowered to `llvm.instrprof.increment` in LLVM IR. @@ -95,6 +106,7 @@ impl Debug for CoverageKind { fn fmt(&self, fmt: &mut Formatter<'_>) -> fmt::Result { use CoverageKind::*; match self { + SpanMarker => write!(fmt, "SpanMarker"), CounterIncrement { id } => write!(fmt, "CounterIncrement({:?})", id.index()), ExpressionUsed { id } => write!(fmt, "ExpressionUsed({:?})", id.index()), } |