Commits on Jan 2, 2024

1. coverage: Avoid a query stability hazard in function_coverage_map …

   When rust-lang#118865 started enforcing the `rustc::potential_query_instability` lint in
   `rustc_codegen_llvm`, it added an exemption for this site, arguing that the
   entries are only used to create a list of filenames that is later sorted.
   
   However, the list of entries also gets traversed when creating the function
   coverage records in LLVM IR, which may be sensitive to hash-based ordering.
   
   This patch therefore changes `function_coverage_map` to use `FxIndexMap`, which
   should avoid hash-based instability by iterating in insertion order.

   

   Zalathar committed Jan 2, 2024
   Configuration menu

   • View commit details
   • Copy full SHA for 5e7c1b9
   • Browse repository at this point

   Copy the full SHA

   5e7c1b9 View commit details

   Browse the repository at this point in the history