Provide option for specifying the profiler runtime

Currently, if `-Zinstrument-coverage` is enabled, the target is linked
against the `library/profiler_builtins` crate (which pulls in LLVM's
compiler-rt runtime).

This option enables backends to specify an alternative runtime crate for
handling injected instrumentation calls.

1 files changed, 1 insertions, 1 deletions

diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs
index bea7d0fb81f..17496c35a4b 100644
--- a/compiler/rustc_interface/src/tests.rs
+++ b/compiler/rustc_interface/src/tests.rs
@@ -713,7 +713,6 @@ fn test_debugging_options_tracking_hash() {
     tracked!(no_codegen, true);
     tracked!(no_generate_arange_section, true);
     tracked!(no_link, true);
-    tracked!(no_profiler_runtime, true);
     tracked!(osx_rpath_install_name, true);
     tracked!(panic_abort_tests, true);
     tracked!(plt, Some(true));
@@ -722,6 +721,7 @@ fn test_debugging_options_tracking_hash() {
     tracked!(print_fuel, Some("abc".to_string()));
     tracked!(profile, true);
     tracked!(profile_emit, Some(PathBuf::from("abc")));
+    tracked!(profiler_runtime, None);
     tracked!(relax_elf_relocations, Some(true));
     tracked!(relro_level, Some(RelroLevel::Full));
     tracked!(simulate_remapped_rust_src_base, Some(PathBuf::from("/rustc/abc")));