[PATCH] D19514: [sanitizers] rewriting test assuming assert() changes coverage.

[Mike Aizatsky via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL267610: [sanitizers] rewriting test assuming assert() changes coverage. (authored by aizatsky).

Changed prior to commit:
  http://reviews.llvm.org/D19514?vs=54949&id=55104#toc

Repository:
  rL LLVM

http://reviews.llvm.org/D19514

Files:
  compiler-rt/trunk/test/asan/TestCases/coverage-pc-buffer.cc

Index: compiler-rt/trunk/test/asan/TestCases/coverage-pc-buffer.cc
===================================================================
--- compiler-rt/trunk/test/asan/TestCases/coverage-pc-buffer.cc
+++ compiler-rt/trunk/test/asan/TestCases/coverage-pc-buffer.cc
@@ -19,23 +19,47 @@
 }
 
 int main() {
-  uintptr_t *buf = NULL;
-  uintptr_t sz = __sanitizer_get_coverage_pc_buffer(&buf);
-  assertNotZeroPcs(buf, sz);
-  assert(sz);
-
-  foo();
-  bar();
-  uintptr_t *buf1 = NULL;
-  uintptr_t sz1 = __sanitizer_get_coverage_pc_buffer(&buf1);
-  assertNotZeroPcs(buf1, sz1);
-  assert(buf1 == buf);
-  assert(sz1 > sz);
-
-  __sanitizer_reset_coverage();
-  uintptr_t *buf3 = NULL;
-  uintptr_t sz3 = __sanitizer_get_coverage_pc_buffer(&buf3);
-  assertNotZeroPcs(buf3, sz3);
-  assert(buf3 == buf);
-  assert(sz3 < sz1);
+  {
+    uintptr_t *buf = NULL;
+    uintptr_t sz = __sanitizer_get_coverage_pc_buffer(&buf);
+    assertNotZeroPcs(buf, sz);
+    assert(sz);
+  }
+
+  {
+    uintptr_t *buf = NULL;
+    uintptr_t sz = __sanitizer_get_coverage_pc_buffer(&buf);
+    // call functions for the first time.
+    foo();
+    bar();
+    uintptr_t *buf1 = NULL;
+    uintptr_t sz1 = __sanitizer_get_coverage_pc_buffer(&buf1);
+    assertNotZeroPcs(buf1, sz1);
+    assert(buf1 == buf);
+    assert(sz1 > sz);
+  }
+
+  {
+    uintptr_t *buf = NULL;
+    uintptr_t sz = __sanitizer_get_coverage_pc_buffer(&buf);
+    // second call shouldn't increase coverage.
+    bar();
+    uintptr_t *buf1 = NULL;
+    uintptr_t sz1 = __sanitizer_get_coverage_pc_buffer(&buf1);
+    assertNotZeroPcs(buf1, sz1);
+    assert(buf1 == buf);
+    assert(sz1 == sz);
+  }
+
+  {
+    uintptr_t *buf = NULL;
+    uintptr_t sz = __sanitizer_get_coverage_pc_buffer(&buf);
+    // reset coverage to 0.
+    __sanitizer_reset_coverage();
+    uintptr_t *buf1 = NULL;
+    uintptr_t sz1 = __sanitizer_get_coverage_pc_buffer(&buf1);
+    assertNotZeroPcs(buf1, sz1);
+    assert(buf1 == buf);
+    assert(sz1 < sz);
+  }
 }


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