Add ability to test parsing of bitcode records in Subzero.

src/BitcodeMunge.h

Index: src/BitcodeMunge.h
diff --git a/src/BitcodeMunge.h b/src/BitcodeMunge.h
new file mode 100644
index 0000000000000000000000000000000000000000..138a0aded61a6de3e03bfaaea0ad0b0df34c6bd5
--- /dev/null
+++ b/src/BitcodeMunge.h
@@ -0,0 +1,46 @@
+//===- BitcodeMunge.h - Subzero Bitcode Munger ------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Test harness for testing malformed bitcode files in Subzero. Uses NaCl's
+// bitcode mangler to do this.

[Jim Stichnoth, 2015/01/05 23:38:14]

mangler or munger?

[Karl, 2015/01/08 21:35:05]

mangler => munger

+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SUBZERO_SRC_BITCODEMUNGE_H
+#define SUBZERO_SRC_BITCODEMUNGE_H
+
+#include "llvm/Bitcode/NaCl/NaClBitcodeMunge.h"
+namespace IceTest {

[Jim Stichnoth, 2015/01/05 23:38:14]

Add a blank line above?

[Karl, 2015/01/08 21:35:05]

Done.

+
+// Class to run tests on subzero's bitcode parser. Runs a subzero

[Jim Stichnoth, 2015/01/05 23:38:14]

Capitalize Subzero

[Karl, 2015/01/08 21:35:05]

Done.

+// translation, using a (possibly) editted array of bicode record

[Jim Stichnoth, 2015/01/05 23:38:14]

edited
bitcode

[Karl, 2015/01/08 21:35:05]

Done.

+// values.  For more details on how to represent the input arrays, see
+// NaClBitcodeMunge.h.
+class SubzeroBitcodeMunger : public llvm::NaClBitcodeMunger {
+public:
+  SubzeroBitcodeMunger(const uint64_t Records[], size_t RecordSize,
+                       uint64_t RecordTerminator)
+      : llvm::NaClBitcodeMunger(Records, RecordSize, RecordTerminator) {}
+
+  /// Runs PNaClTranslator to translate bitcode records (with defined
+  /// record Munges), and puts output into DumpResults. Returns true
+  /// if parse is successful.
+  bool runTest(const char* TestName, const uint64_t Munges[],
+               size_t MungeSize);
+
+  /// Same as above, but without any edits.
+  bool runTest(const char* TestName) {
+    uint64_t NoMunges[] = {0};
+    return runTest(TestName, NoMunges, 0);
+  }
+};
+
+} // end of namespace IceTest
+
+#endif // SUBZERO_SRC_BITCODEMUNGE_H