Rollup merge of #60038 - michaelwoerister:pgo-updates-2, r=alexcrichton

Add codegen test for PGO instrumentation.

This PR adds a codegen test that makes sure that LLVM actually generates instrumentation code when we enable PGO instrumentation in `rustc`.

The second commit updates a test case to the new commandline option syntax introduced in #59874. Without the fix the test still works, but it confusingly creates a directory called `test.profraw`, which usually is the name of the _file_ where profiling data is collected.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/bootstrap/test.rs b/src/bootstrap/test.rs
index c552f607960..a443b7b5863 100644
--- a/src/bootstrap/test.rs
+++ b/src/bootstrap/test.rs
@@ -1268,11 +1268,11 @@ impl Step for Compiletest {
         builder.add_rust_test_threads(&mut cmd);
 
         if builder.config.sanitizers {
-            cmd.env("SANITIZER_SUPPORT", "1");
+            cmd.env("RUSTC_SANITIZER_SUPPORT", "1");
         }
 
         if builder.config.profiler {
-            cmd.env("PROFILER_SUPPORT", "1");
+            cmd.env("RUSTC_PROFILER_SUPPORT", "1");
         }
 
         cmd.env("RUST_TEST_TMPDIR", builder.out.join("tmp"));