Use std::make_shared in LLDB (NFC)

Unlike std::make_unique, which is only available since C++14,
std::make_shared is available since C++11. Not only is std::make_shared
a lot more readable compared to ::reset(new), it also performs a single
heap allocation for the object and control block.

Differential revision: https://reviews.llvm.org/D57990

llvm-svn: 353764

1 files changed, 5 insertions, 3 deletions

diff --git a/lldb/source/Plugins/Process/Utility/RegisterContextDarwin_i386.cpp b/lldb/source/Plugins/Process/Utility/RegisterContextDarwin_i386.cpp
index 742644d4d8e..161af9f8c32 100644
--- a/lldb/source/Plugins/Process/Utility/RegisterContextDarwin_i386.cpp
+++ b/lldb/source/Plugins/Process/Utility/RegisterContextDarwin_i386.cpp
@@ -6,8 +6,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include <stddef.h>
-
 #include "lldb/Utility/DataBufferHeap.h"
 #include "lldb/Utility/DataExtractor.h"
 #include "lldb/Utility/Endian.h"
@@ -17,6 +15,10 @@
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/Support/Compiler.h"
 
+#include <stddef.h>
+
+#include <memory>
+
 // Support building against older versions of LLVM, this macro was added
 // recently.
 #ifndef LLVM_EXTENSION
@@ -831,7 +833,7 @@ bool RegisterContextDarwin_i386::WriteRegister(const RegisterInfo *reg_info,
 
 bool RegisterContextDarwin_i386::ReadAllRegisterValues(
     lldb::DataBufferSP &data_sp) {
-  data_sp.reset(new DataBufferHeap(REG_CONTEXT_SIZE, 0));
+  data_sp = std::make_shared<DataBufferHeap>(REG_CONTEXT_SIZE, 0);
   if (data_sp && ReadGPR(false) == 0 && ReadFPU(false) == 0 &&
       ReadEXC(false) == 0) {
     uint8_t *dst = data_sp->GetBytes();