Add support for generating unique *.profraw files by default when using the `-C instrument-coverage` flag.

Respond to PR comments.

1 files changed, 17 insertions, 0 deletions

diff --git a/src/test/codegen/instrument-coverage.rs b/src/test/codegen/instrument-coverage.rs
new file mode 100644
index 00000000000..78f8875a2d9
--- /dev/null
+++ b/src/test/codegen/instrument-coverage.rs
@@ -0,0 +1,17 @@
+// Test that `-Cinstrument-coverage` creates expected __llvm_profile_filename symbol in LLVM IR.
+
+// needs-profiler-support
+// compile-flags: -Cinstrument-coverage
+
+// CHECK: @__llvm_profile_filename = {{.*}}"default_%m_%p.profraw\00"{{.*}}
+
+#![crate_type="lib"]
+
+#[inline(never)]
+fn some_function() {
+
+}
+
+pub fn some_other_function() {
+    some_function();
+}