vendor/llvm/llvm-trunk-r366426

1 files changed, 59 insertions, 0 deletions

diff --git a/lib/DebugInfo/GSYM/InlineInfo.cpp b/lib/DebugInfo/GSYM/InlineInfo.cpp
new file mode 100644
index 000000000000..781c1755241d
--- /dev/null
+++ b/lib/DebugInfo/GSYM/InlineInfo.cpp
@@ -0,0 +1,59 @@
+//===- InlineInfo.cpp -------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/DebugInfo/GSYM/FileEntry.h"
+#include "llvm/DebugInfo/GSYM/InlineInfo.h"
+#include <algorithm>
+#include <inttypes.h>
+
+using namespace llvm;
+using namespace gsym;
+
+
+raw_ostream &llvm::gsym::operator<<(raw_ostream &OS, const InlineInfo &II) {
+  if (!II.isValid())
+    return OS;
+  bool First = true;
+  for (auto Range : II.Ranges) {
+    if (First)
+      First = false;
+    else
+      OS << ' ';
+    OS << Range;
+  }
+  OS << " Name = " << HEX32(II.Name) << ", CallFile = " << II.CallFile
+     << ", CallLine = " << II.CallFile << '\n';
+  for (const auto &Child : II.Children)
+    OS << Child;
+  return OS;
+}
+
+static bool getInlineStackHelper(const InlineInfo &II, uint64_t Addr,
+    std::vector<const InlineInfo *> &InlineStack) {
+  if (II.Ranges.contains(Addr)) {
+    // If this is the top level that represents the concrete function,
+    // there will be no name and we shoud clear the inline stack. Otherwise
+    // we have found an inline call stack that we need to insert.
+    if (II.Name != 0)
+      InlineStack.insert(InlineStack.begin(), &II);
+    for (const auto &Child : II.Children) {
+      if (::getInlineStackHelper(Child, Addr, InlineStack))
+        break;
+    }
+    return !InlineStack.empty();
+  }
+  return false;
+}
+
+llvm::Optional<InlineInfo::InlineArray> InlineInfo::getInlineStack(uint64_t Addr) const {
+  InlineArray Result;
+  if (getInlineStackHelper(*this, Addr, Result))
+    return Result;
+  return llvm::None;
+}