1 files changed, 51 insertions, 0 deletions
diff --git a/lib/ProfileData/SampleProf.cpp b/lib/ProfileData/SampleProf.cpp
new file mode 100644
index 0000000..920c48a
--- /dev/null
+++ b/lib/ProfileData/SampleProf.cpp
@@ -0,0 +1,51 @@
+//=-- SampleProf.cpp - Sample profiling format support --------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains common definitions used in the reading and writing of
+// sample profile data.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ProfileData/SampleProf.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/ManagedStatic.h"
+
+using namespace llvm;
+
+namespace {
+class SampleProfErrorCategoryType : public std::error_category {
+  const char *name() const LLVM_NOEXCEPT override { return "llvm.sampleprof"; }
+  std::string message(int IE) const override {
+    sampleprof_error E = static_cast<sampleprof_error>(IE);
+    switch (E) {
+    case sampleprof_error::success:
+      return "Success";
+    case sampleprof_error::bad_magic:
+      return "Invalid file format (bad magic)";
+    case sampleprof_error::unsupported_version:
+      return "Unsupported format version";
+    case sampleprof_error::too_large:
+      return "Too much profile data";
+    case sampleprof_error::truncated:
+      return "Truncated profile data";
+    case sampleprof_error::malformed:
+      return "Malformed profile data";
+    case sampleprof_error::unrecognized_format:
+      return "Unrecognized profile encoding format";
+    }
+    llvm_unreachable("A value of sampleprof_error has no message.");
+  }
+};
+}
+
+static ManagedStatic<SampleProfErrorCategoryType> ErrorCategory;
+
+const std::error_category &llvm::sampleprof_category() {
+  return *ErrorCategory;
+}