1 files changed, 45 insertions, 0 deletions
diff --git a/test/asan/TestCases/Linux/coverage-direct-large.cc b/test/asan/TestCases/Linux/coverage-direct-large.cc
new file mode 100644
index 0000000000000..78aa68621ad1a
--- /dev/null
+++ b/test/asan/TestCases/Linux/coverage-direct-large.cc
@@ -0,0 +1,45 @@
+// Test for direct coverage writing with lots of data.
+// Current implementation maps output file in chunks of 64K. This test overflows
+// 1 chunk.
+// RUN: %clangxx_asan -fsanitize-coverage=1 -O0 %s -o %t
+
+// RUN: rm -rf %T/coverage-direct-large
+
+// RUN: mkdir -p %T/coverage-direct-large/normal && cd %T/coverage-direct-large/normal
+// RUN: ASAN_OPTIONS=coverage=1:coverage_direct=0:verbosity=1 %run %t
+// RUN: %sancov print *.sancov >out.txt
+// RUN: cd ../..
+
+// RUN: mkdir -p %T/coverage-direct-large/direct && cd %T/coverage-direct-large/direct
+// RUN: ASAN_OPTIONS=coverage=1:coverage_direct=1:verbosity=1 %run %t
+// RUN: %sancov rawunpack *.sancov.raw
+// RUN: %sancov print *.sancov >out.txt
+// RUN: cd ../..
+
+// RUN: diff -u coverage-direct-large/normal/out.txt coverage-direct-large/direct/out.txt
+//
+// XFAIL: android
+
+#define F0(Q, x) Q(x)
+#define F1(Q, x)                                                          \
+  F0(Q, x##0) F0(Q, x##1) F0(Q, x##2) F0(Q, x##3) F0(Q, x##4) F0(Q, x##5) \
+      F0(Q, x##6) F0(Q, x##7) F0(Q, x##8) F0(Q, x##9)
+#define F2(Q, x)                                                          \
+  F1(Q, x##0) F1(Q, x##1) F1(Q, x##2) F1(Q, x##3) F1(Q, x##4) F1(Q, x##5) \
+      F1(Q, x##6) F1(Q, x##7) F1(Q, x##8) F1(Q, x##9)
+#define F3(Q, x)                                                          \
+  F2(Q, x##0) F2(Q, x##1) F2(Q, x##2) F2(Q, x##3) F2(Q, x##4) F2(Q, x##5) \
+      F2(Q, x##6) F2(Q, x##7) F2(Q, x##8) F2(Q, x##9)
+#define F4(Q, x)                                                          \
+  F3(Q, x##0) F3(Q, x##1) F3(Q, x##2) F3(Q, x##3) F3(Q, x##4) F3(Q, x##5) \
+      F3(Q, x##6) F3(Q, x##7) F3(Q, x##8) F3(Q, x##9)
+
+#define DECL(x) __attribute__((noinline)) void x() {}
+#define CALL(x) x();
+
+F4(DECL, f)
+
+int main(void) {
+  F4(CALL, f)
+  return 0;
+}