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Update CoverageMappingFormat Support to Version6

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Version 5 adds Branch Regions which are a prerequisite for branch coverage.
Version 6 can use the zeroth filename as prefix for other relative files.
This commit is contained in:
Arpad Borsos 2021-10-19 11:09:43 +02:00 • committed by Rich Kadel
parent 7b3cd075bb
commit 566ad8da45
6 changed files with 66 additions and 23 deletions
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6
compiler/rustc_middle/src/mir/coverage.rs
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@ -21,9 +21,9 @@ rustc_index::newtype_index! {
impl ExpressionOperandId {
/// An expression operand for a "zero counter", as described in the following references:
///
/// * <https://github.com/rust-lang/llvm-project/blob/rustc/11.0-2020-10-12/llvm/docs/CoverageMappingFormat.rst#counter>
/// * <https://github.com/rust-lang/llvm-project/blob/rustc/11.0-2020-10-12/llvm/docs/CoverageMappingFormat.rst#tag>
/// * <https://github.com/rust-lang/llvm-project/blob/rustc/11.0-2020-10-12/llvm/docs/CoverageMappingFormat.rst#counter-expressions>
/// * <https://github.com/rust-lang/llvm-project/blob/rustc/13.0-2021-09-30/llvm/docs/CoverageMappingFormat.rst#counter>
/// * <https://github.com/rust-lang/llvm-project/blob/rustc/13.0-2021-09-30/llvm/docs/CoverageMappingFormat.rst#tag>
/// * <https://github.com/rust-lang/llvm-project/blob/rustc/13.0-2021-09-30/llvm/docs/CoverageMappingFormat.rst#counter-expressions>
///
/// This operand can be used to count two or more separate code regions with a single counter,
/// if they run sequentially with no branches, by injecting the `Counter` in a `BasicBlock` for