Add encode and decode methods to InlineInfo and document encoding format to the GSYM file format.

This patch adds the ability to encode and decode InlineInfo objects and adds test coverage. Error handling is introduced in the encoding and decoding which will be used from here on out for remaining patches.

Differential Revision: https://reviews.llvm.org/D66600

llvm-svn: 370936

1 files changed, 11 insertions, 0 deletions

diff --git a/llvm/lib/DebugInfo/GSYM/Range.cpp b/llvm/lib/DebugInfo/GSYM/Range.cpp
index f4d31f328a2..19ab700fdd5 100644
--- a/llvm/lib/DebugInfo/GSYM/Range.cpp
+++ b/llvm/lib/DebugInfo/GSYM/Range.cpp
@@ -42,6 +42,17 @@ bool AddressRanges::contains(uint64_t Addr) const {
   return It != Ranges.begin() && Addr < It[-1].End;
 }
 
+bool AddressRanges::contains(AddressRange Range) const {
+  if (Range.size() == 0)
+    return false;
+  auto It = std::partition_point(
+      Ranges.begin(), Ranges.end(),
+      [=](const AddressRange &R) { return R.Start <= Range.Start; });
+  if (It == Ranges.begin())
+    return false;
+  return Range.End <= It[-1].End;
+}
+
 raw_ostream &llvm::gsym::operator<<(raw_ostream &OS, const AddressRange &R) {
   return OS << '[' << HEX64(R.Start) << " - " << HEX64(R.End) << ")";
 }