[Coverage] Improve end-to-end test

Author: vedantk

test/SILGen/coverage_smoke.swift

@@ -1,20 +1,56 @@
 // RUN: rm -rf %t && mkdir %t
-// RUN: %target-build-swift %s -profile-generate -profile-coverage-mapping -o %t/main
+// RUN: %target-build-swift %s -profile-generate -profile-coverage-mapping -Xfrontend -disable-incremental-llvm-codegen -o %t/main
 // RUN: env LLVM_PROFILE_FILE=%t/default.profraw %target-run %t/main
 // RUN: %llvm-profdata merge %t/default.profraw -o %t/default.profdata
-// RUN: %llvm-profdata show %t/default.profdata -function=main | FileCheck %s --check-prefix=CHECK-PROF
+// RUN: %llvm-profdata show %t/default.profdata -function=f_internal | FileCheck %s --check-prefix=CHECK-INTERNAL
+// RUN: %llvm-profdata show %t/default.profdata -function=f_private | FileCheck %s --check-prefix=CHECK-PRIVATE
+// RUN: %llvm-profdata show %t/default.profdata -function=f_public | FileCheck %s --check-prefix=CHECK-PUBLIC
+// RUN: %llvm-profdata show %t/default.profdata -function=main | FileCheck %s --check-prefix=CHECK-MAIN
 // RUN: %llvm-cov show %t/main -instr-profile=%t/default.profdata | FileCheck %s --check-prefix=CHECK-COV
 // RUN: rm -rf %t
 
 // REQUIRES: profile_runtime
 // REQUIRES: OS=macosx
 // XFAIL: asan
 
+// CHECK-INTERNAL: Functions shown: 1
+// CHECK-COV: 1|{{.*}}[[@LINE+1]]|{{.*}}func f_internal
+internal func f_internal() {}
+
+// CHECK-PRIVATE: Functions shown: 1
+// CHECK-COV: 1|{{.*}}[[@LINE+1]]|{{.*}}func f_private
+private func f_private() { f_internal() }
+
+// CHECK-PUBLIC: Functions shown: 1
+// CHECK-COV: 1|{{.*}}[[@LINE+1]]|{{.*}}func f_public
+public func f_public() { f_private() }
+
+class Class1 {
+  var Field1 = 0
+
+// CHECK-COV: 1|{{.*}}[[@LINE+1]]|{{.*}}init
+  init() {}
+
+// CHECK-COV: 1|{{.*}}[[@LINE+1]]|{{.*}}deinit
+  deinit {}
+}
+
+// CHECK-MAIN: Maximum function count: 1
 func main() {
-// CHECK-PROF: Counters: 2
-// CHECK-PROF: Function count: 1
+// CHECK-COV: 1|{{.*}}[[@LINE+1]]|{{.*}}f_public
+  f_public()
+
 // CHECK-COV: 1|{{.*}}[[@LINE+1]]|{{.*}}if (true)
   if (true) {}
+
+  var x : Int32 = 0
+  while (x < 10) {
+// CHECK-COV: 10|{{.*}}[[@LINE+1]]|{{.*}}x += 1
+    x += 1
+  }
+
+// CHECK-COV: 1|{{.*}}[[@LINE+1]]|{{.*}}Class1
+  let _ = Class1()
 }
 
 main()