[Coverage] add test cases for coverage testing

1. One test covering coverage-mapping interfaction with linker GC
2. one test covering coverage-mapping with shared libaries

llvm-svn: 257782

3 files changed, 49 insertions, 5 deletions

diff --git a/compiler-rt/test/profile/Inputs/instrprof-dynamic-a.cpp b/compiler-rt/test/profile/Inputs/instrprof-dynamic-a.cpp
index 2ec484a5b38..5faa9c2b2a8 100644
--- a/compiler-rt/test/profile/Inputs/instrprof-dynamic-a.cpp
+++ b/compiler-rt/test/profile/Inputs/instrprof-dynamic-a.cpp
@@ -1,7 +1,7 @@
 #include "instrprof-dynamic-header.h"
-void a() {
-  if (true) {
-    bar<void>(1);
-    bar<char>(1);
-  }
+void a() {                             // COV: 1| [[@LINE]]|void a
+  if (true) {                          // COV: 1| [[@LINE]]|  if
+    bar<void>(1);                      // COV: 1| [[@LINE]]|    bar
+    bar<char>(1);                      // COV: 1| [[@LINE]]|    bar
+  }                                    // COV: 1| [[@LINE]]|  }
 }
diff --git a/compiler-rt/test/profile/Linux/coverage_shared.test b/compiler-rt/test/profile/Linux/coverage_shared.test
new file mode 100644
index 00000000000..e2b0e3e1160
--- /dev/null
+++ b/compiler-rt/test/profile/Linux/coverage_shared.test
@@ -0,0 +1,16 @@
+RUN: mkdir -p %t.d
+RUN: %clang_profgen -fdata-sections -ffunction-sections -fcoverage-mapping -c -o %t.d/a.shared.o -fPIC  %S/../Inputs/instrprof-dynamic-a.cpp
+RUN: %clang_profgen -fdata-sections -ffunction-sections -fuse-ld=gold -Wl,--gc-sections -fcoverage-mapping -o %t.d/a.shared -fPIC -shared %S/../Inputs/instrprof-dynamic-a.cpp
+RUN: %clang_profgen -fdata-sections -ffunction-sections -fuse-ld=gold -Wl,--gc-sections -o %t-shared -fPIC -rpath %t.d %t.d/a.shared %S/../Inputs/instrprof-dynamic-b.cpp %S/../Inputs/instrprof-dynamic-main.cpp
+
+RUN: %clang_profgen -fdata-sections -ffunction-sections -fuse-ld=gold -Wl,--gc-sections -o %t-static %t.d/a.shared.o %S/../Inputs/instrprof-dynamic-b.cpp %S/../Inputs/instrprof-dynamic-main.cpp
+
+RUN: env LLVM_PROFILE_FILE=%t-static.profraw %run %t-static
+RUN: env LLVM_PROFILE_FILE=%t-shared.profraw %run %t-shared
+
+RUN: llvm-profdata merge -o %t-static.profdata %t-static.profraw
+RUN: llvm-profdata merge -o %t-shared.profdata %t-shared.profraw
+
+RUN: llvm-cov show -instr-profile %t-shared.profdata %t.d/a.shared | FileCheck --check-prefix=COV %S/../Inputs/instrprof-dynamic-a.cpp
+RUN: llvm-cov show -instr-profile %t-static.profdata %t-static | FileCheck --check-prefix=COV %S/../Inputs/instrprof-dynamic-a.cpp
+
diff --git a/compiler-rt/test/profile/Linux/coverage_test.cpp b/compiler-rt/test/profile/Linux/coverage_test.cpp
new file mode 100644
index 00000000000..1443279419c
--- /dev/null
+++ b/compiler-rt/test/profile/Linux/coverage_test.cpp
@@ -0,0 +1,28 @@
+// RUN: %clang_profgen -fuse-ld=gold -O2 -fdata-sections -ffunction-sections -fprofile-instr-generate -fcoverage-mapping -Wl,--gc-sections -o %t %s
+// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
+// RUN: llvm-profdata merge -o %t.profdata %t.profraw
+// RUN: llvm-cov show %t -instr-profile %t.profdata -filename-equivalence 2>&1 | FileCheck %s
+//
+// RUN: %clang_profgen -fuse-ld=gold -O2 -fdata-sections -ffunction-sections -fPIE -pie -fprofile-instr-generate -fcoverage-mapping -Wl,--gc-sections -o %t.pie %s
+// RUN: env LLVM_PROFILE_FILE=%t.pie.profraw %run %t.pie
+// RUN: llvm-profdata merge -o %t.pie.profdata %t.pie.profraw
+// RUN: llvm-cov show %t.pie -instr-profile %t.pie.profdata -filename-equivalence 2>&1 | FileCheck %s
+
+void foo(bool cond) { // CHECK:  1| [[@LINE]]|void foo(
+  if (cond) {         // CHECK:  1| [[@LINE]]|  if (cond) {
+  }                   // CHECK:  0| [[@LINE]]|  }
+}                     // CHECK:  1| [[@LINE]]|}
+void bar() {          // CHECK:  1| [[@LINE]]|void bar() {
+}                     // CHECK:  1| [[@LINE]]|}
+void func() {         // CHECK:  0| [[@LINE]]|void func(
+}                     // CHECK:  0| [[@LINE]]|}
+int main() {          // CHECK:  1| [[@LINE]]|int main(
+  foo(false);         // CHECK:  1| [[@LINE]]|  foo(
+  bar();              // CHECK:  1| [[@LINE]]|  bar(
+  return 0;           // CHECK:  1| [[@LINE]]|  return
+}                     // CHECK:  1| [[@LINE]]|}
+
+
+
+
+