Import compiler-rt trunk r224034.vendor/compiler-rt/compiler-rt-r224034

https://llvm.org/svn/llvm-project/compiler-rt/trunk@224034

1 files changed, 41 insertions, 0 deletions

diff --git a/test/asan/TestCases/Linux/coverage-caller-callee-total-count.cc b/test/asan/TestCases/Linux/coverage-caller-callee-total-count.cc
new file mode 100644
index 000000000000..0201425106f9
--- /dev/null
+++ b/test/asan/TestCases/Linux/coverage-caller-callee-total-count.cc
@@ -0,0 +1,41 @@
+// Test __sanitizer_get_total_unique_coverage for caller-callee coverage
+
+// RUN: %clangxx_asan -fsanitize-coverage=4 %s -o %t
+// RUN: ASAN_OPTIONS=coverage=1 %run %t
+// RUN: rm -f caller-callee*.sancov
+//
+// REQUIRES: asan-64-bits
+
+#include <sanitizer/common_interface_defs.h>
+#include <stdio.h>
+#include <assert.h>
+int P = 0;
+struct Foo {virtual void f() {if (P) printf("Foo::f()\n");}};
+struct Foo1 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+struct Foo2 : Foo {virtual void f() {if (P) printf("%d\n", __LINE__);}};
+
+Foo *foo[3] = {new Foo, new Foo1, new Foo2};
+
+uintptr_t CheckNewTotalUniqueCoverageIsLargerAndReturnIt(uintptr_t old_total) {
+  uintptr_t new_total = __sanitizer_get_total_unique_coverage();
+  assert(new_total > old_total);
+  return new_total;
+}
+
+int main(int argc, char **argv) {
+  uintptr_t total = CheckNewTotalUniqueCoverageIsLargerAndReturnIt(0);
+  foo[0]->f();
+  total = CheckNewTotalUniqueCoverageIsLargerAndReturnIt(total);
+  foo[1]->f();
+  total = CheckNewTotalUniqueCoverageIsLargerAndReturnIt(total);
+  foo[2]->f();
+  total = CheckNewTotalUniqueCoverageIsLargerAndReturnIt(total);
+  // Ok, called every function once.
+  // Now call them again from another call site. Should get new coverage.
+  foo[0]->f();
+  total = CheckNewTotalUniqueCoverageIsLargerAndReturnIt(total);
+  foo[1]->f();
+  total = CheckNewTotalUniqueCoverageIsLargerAndReturnIt(total);
+  foo[2]->f();
+  total = CheckNewTotalUniqueCoverageIsLargerAndReturnIt(total);
+}