diff options
Diffstat (limited to 'compiler/rustc_codegen_ssa/src/coverageinfo/ffi.rs')
| -rw-r--r-- | compiler/rustc_codegen_ssa/src/coverageinfo/ffi.rs | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/compiler/rustc_codegen_ssa/src/coverageinfo/ffi.rs b/compiler/rustc_codegen_ssa/src/coverageinfo/ffi.rs index e288760a0..1791ce4b3 100644 --- a/compiler/rustc_codegen_ssa/src/coverageinfo/ffi.rs +++ b/compiler/rustc_codegen_ssa/src/coverageinfo/ffi.rs @@ -1,6 +1,6 @@ use rustc_middle::mir::coverage::{CounterValueReference, MappedExpressionIndex}; -/// Aligns with [llvm::coverage::Counter::CounterKind](https://github.com/rust-lang/llvm-project/blob/rustc/13.0-2021-09-30/llvm/include/llvm/ProfileData/Coverage/CoverageMapping.h#L95) +/// Must match the layout of `LLVMRustCounterKind`. #[derive(Copy, Clone, Debug)] #[repr(C)] pub enum CounterKind { @@ -17,8 +17,10 @@ pub enum CounterKind { /// `instrprof.increment()`) /// * For `CounterKind::Expression`, `id` is the index into the coverage map's array of /// counter expressions. -/// Aligns with [llvm::coverage::Counter](https://github.com/rust-lang/llvm-project/blob/rustc/13.0-2021-09-30/llvm/include/llvm/ProfileData/Coverage/CoverageMapping.h#L102-L103) -/// Important: The Rust struct layout (order and types of fields) must match its C++ counterpart. +/// +/// Corresponds to struct `llvm::coverage::Counter`. +/// +/// Must match the layout of `LLVMRustCounter`. #[derive(Copy, Clone, Debug)] #[repr(C)] pub struct Counter { @@ -59,7 +61,9 @@ impl Counter { } } -/// Aligns with [llvm::coverage::CounterExpression::ExprKind](https://github.com/rust-lang/llvm-project/blob/rustc/13.0-2021-09-30/llvm/include/llvm/ProfileData/Coverage/CoverageMapping.h#L150) +/// Corresponds to enum `llvm::coverage::CounterExpression::ExprKind`. +/// +/// Must match the layout of `LLVMRustCounterExprKind`. #[derive(Copy, Clone, Debug)] #[repr(C)] pub enum ExprKind { @@ -67,9 +71,9 @@ pub enum ExprKind { Add = 1, } -/// Aligns with [llvm::coverage::CounterExpression](https://github.com/rust-lang/llvm-project/blob/rustc/13.0-2021-09-30/llvm/include/llvm/ProfileData/Coverage/CoverageMapping.h#L151-L152) -/// Important: The Rust struct layout (order and types of fields) must match its C++ -/// counterpart. +/// Corresponds to struct `llvm::coverage::CounterExpression`. +/// +/// Must match the layout of `LLVMRustCounterExpression`. #[derive(Copy, Clone, Debug)] #[repr(C)] pub struct CounterExpression { |