Vendor import of llvm trunk r351319 (just before the release_80 branchvendor/llvm/llvm-trunk-r351319

point):
https://llvm.org/svn/llvm-project/llvm/trunk@351319

1 files changed, 6 insertions, 5 deletions

diff --git a/include/llvm/ADT/StringExtras.h b/include/llvm/ADT/StringExtras.h
index 71b0e7527cb7..60a03633a8a6 100644
--- a/include/llvm/ADT/StringExtras.h
+++ b/include/llvm/ADT/StringExtras.h
@@ -139,22 +139,23 @@ inline std::string utohexstr(uint64_t X, bool LowerCase = false) {
 
 /// Convert buffer \p Input to its hexadecimal representation.
 /// The returned string is double the size of \p Input.
-inline std::string toHex(StringRef Input) {
+inline std::string toHex(StringRef Input, bool LowerCase = false) {
   static const char *const LUT = "0123456789ABCDEF";
+  const uint8_t Offset = LowerCase ? 32 : 0;
   size_t Length = Input.size();
 
   std::string Output;
   Output.reserve(2 * Length);
   for (size_t i = 0; i < Length; ++i) {
     const unsigned char c = Input[i];
-    Output.push_back(LUT[c >> 4]);
-    Output.push_back(LUT[c & 15]);
+    Output.push_back(LUT[c >> 4] | Offset);
+    Output.push_back(LUT[c & 15] | Offset);
   }
   return Output;
 }
 
-inline std::string toHex(ArrayRef<uint8_t> Input) {
-  return toHex(toStringRef(Input));
+inline std::string toHex(ArrayRef<uint8_t> Input, bool LowerCase = false) {
+  return toHex(toStringRef(Input), LowerCase);
 }
 
 inline uint8_t hexFromNibbles(char MSB, char LSB) {