Make test/codegen/pgo-instrumentation.rs work reliably on Windows.

Author: michaelwoerister

src/test/codegen/pgo-instrumentation.rs

@@ -1,20 +1,23 @@
 // Test that `-Zpgo-gen` creates expected instrumentation artifacts in LLVM IR.
+// Compiling with `-Cpanic=abort` because PGO+unwinding isn't supported on all platforms.
 
 // needs-profiler-support
-// compile-flags: -Z pgo-gen -Ccodegen-units=1
+// compile-flags: -Z pgo-gen -Ccodegen-units=1 -Cpanic=abort
 
 // CHECK: @__llvm_profile_raw_version =
 // CHECK: @__profc_{{.*}}pgo_instrumentation{{.*}}some_function{{.*}} = private global
 // CHECK: @__profd_{{.*}}pgo_instrumentation{{.*}}some_function{{.*}} = private global
-// CHECK: @__profc_{{.*}}pgo_instrumentation{{.*}}main{{.*}} = private global
-// CHECK: @__profd_{{.*}}pgo_instrumentation{{.*}}main{{.*}} = private global
+// CHECK: @__profc_{{.*}}pgo_instrumentation{{.*}}some_other_function{{.*}} = private global
+// CHECK: @__profd_{{.*}}pgo_instrumentation{{.*}}some_other_function{{.*}} = private global
 // CHECK: @__llvm_profile_filename = {{.*}}"default_%m.profraw\00"{{.*}}
 
+#![crate_type="lib"]
+
 #[inline(never)]
 fn some_function() {
 
 }
 
-fn main() {
+pub fn some_other_function() {
     some_function();
 }