[profile] Add end-end test of vp for inline virtual functions

Make sure inline virtual function's address is properly recorded and
dumped in raw profile so that value profiling does not loss tracking.
(Second part of the test will be enabled after the lowering bug is fixed
in LLVM)

llvm-svn: 271528

4 files changed, 43 insertions, 0 deletions

diff --git a/compiler-rt/test/profile/Inputs/instrprof-icall-promo.h b/compiler-rt/test/profile/Inputs/instrprof-icall-promo.h
new file mode 100644
index 00000000000..531e8ac82da
--- /dev/null
+++ b/compiler-rt/test/profile/Inputs/instrprof-icall-promo.h
@@ -0,0 +1,4 @@
+struct A {
+  virtual int foo() { return 1; };
+  virtual int bar();
+};
diff --git a/compiler-rt/test/profile/Inputs/instrprof-icall-promo_1.cc b/compiler-rt/test/profile/Inputs/instrprof-icall-promo_1.cc
new file mode 100644
index 00000000000..e0a5e069347
--- /dev/null
+++ b/compiler-rt/test/profile/Inputs/instrprof-icall-promo_1.cc
@@ -0,0 +1,7 @@
+#include "instrprof-icall-promo.h"
+
+A a;
+
+A* ap = &a;
+
+int ref(A* ap) { return ap->A::foo(); }
diff --git a/compiler-rt/test/profile/Inputs/instrprof-icall-promo_2.cc b/compiler-rt/test/profile/Inputs/instrprof-icall-promo_2.cc
new file mode 100644
index 00000000000..658ab0bf44d
--- /dev/null
+++ b/compiler-rt/test/profile/Inputs/instrprof-icall-promo_2.cc
@@ -0,0 +1,15 @@
+#include "instrprof-icall-promo.h"
+extern int ref(A *);
+
+int A::bar() { return 2; }
+
+extern A *ap;
+int test() {
+  for (int i = 0; i < 10000; i++) ap->foo();
+  return ref(ap);
+}
+
+int main() {
+  test();
+  return 0;
+}
diff --git a/compiler-rt/test/profile/instrprof-icall-promo.test b/compiler-rt/test/profile/instrprof-icall-promo.test
new file mode 100644
index 00000000000..8be50bca644
--- /dev/null
+++ b/compiler-rt/test/profile/instrprof-icall-promo.test
@@ -0,0 +1,17 @@
+RUN: %clangxx_profgen -O2 -Xclang -fprofile-instrument=llvm -c -o %t.1.o  %S/Inputs/instrprof-icall-promo_1.cc 
+RUN: %clangxx_profgen -O2 -Xclang -fprofile-instrument=llvm -c -o %t.2.o  %S/Inputs/instrprof-icall-promo_2.cc 
+
+RUN: %clangxx_profgen -O2 -Xclang -fprofile-instrument=llvm %t.2.o %t.1.o -o %t.gen.1
+RUN: LLVM_PROFILE_FILE=%t-icall.profraw %t.gen.1
+RUN: llvm-profdata merge -o %t-icall.profdata %t-icall.profraw
+RUN: %clangxx -O2 -Rpass=pgo-icall-prom  -fprofile-instr-use=%t-icall.profdata -c -o %t.2.use.o  %S/Inputs/instrprof-icall-promo_2.cc  2>&1 | FileCheck %s
+
+RUN: %clangxx_profgen -O2 -Xclang -fprofile-instrument=llvm %t.1.o %t.2.o -o %t.gen.2
+RUN: LLVM_PROFILE_FILE=%t-icall2.profraw %t.gen.2
+RUN: llvm-profdata merge -o %t-icall2.profdata %t-icall2.profraw
+# The following test will be re-enabled once a compiler bug is fixed.
+#: %clangxx -O2 -Rpass=pgo-icall-prom  -fprofile-instr-use=%t-icall2.profdata -c -o %t.2.use.o  %S/Inputs/instrprof-icall-promo_2.cc  2>&1 | FileCheck %s
+
+
+# CHECK: Promote indirect call to
+