From b3649db1022ef464687df135934c6e743e5c5cb8 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Wed, 16 Dec 2009 08:44:24 +0000
Subject: [PATCH] now that libsystem no longer uses SmallVector, we can move
 SmallVectorBase::grow_pod out of line, finally satisfying PR3758.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91529 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/ADT/SmallVector.h | 24 +++-------------------
 lib/Support/CMakeLists.txt     |  1 +
 lib/Support/SmallVector.cpp    | 37 ++++++++++++++++++++++++++++++++++
 3 files changed, 41 insertions(+), 21 deletions(-)
 create mode 100644 lib/Support/SmallVector.cpp

diff --git a/include/llvm/ADT/SmallVector.h b/include/llvm/ADT/SmallVector.h
index 0e076c8beb8..991a3991d40 100644
--- a/include/llvm/ADT/SmallVector.h
+++ b/include/llvm/ADT/SmallVector.h
@@ -90,32 +90,14 @@ protected:
     return size_t((char*)CapacityX - (char*)BeginX);
   }
   
-  inline void grow_pod(size_t MinSizeInBytes, size_t TSize);
+  /// grow_pod - This is an implementation of the grow() method which only works
+  /// on POD-like datatypes and is out of line to reduce code duplication.
+  void grow_pod(size_t MinSizeInBytes, size_t TSize);
   
 public:
   bool empty() const { return BeginX == EndX; }
 };
   
-inline void SmallVectorBase::grow_pod(size_t MinSizeInBytes, size_t TSize) {
-  size_t CurSizeBytes = size_in_bytes();
-  size_t NewCapacityInBytes = 2 * capacity_in_bytes();
-  if (NewCapacityInBytes < MinSizeInBytes)
-    NewCapacityInBytes = MinSizeInBytes;
-  void *NewElts = operator new(NewCapacityInBytes);
-  
-  // Copy the elements over.
-  memcpy(NewElts, this->BeginX, CurSizeBytes);
-  
-  // If this wasn't grown from the inline copy, deallocate the old space.
-  if (!this->isSmall())
-    operator delete(this->BeginX);
-  
-  this->EndX = (char*)NewElts+CurSizeBytes;
-  this->BeginX = NewElts;
-  this->CapacityX = (char*)this->BeginX + NewCapacityInBytes;
-}
-
-  
 
 template <typename T>
 class SmallVectorTemplateCommon : public SmallVectorBase {
diff --git a/lib/Support/CMakeLists.txt b/lib/Support/CMakeLists.txt
index ac736dc66f7..0001aae813a 100644
--- a/lib/Support/CMakeLists.txt
+++ b/lib/Support/CMakeLists.txt
@@ -23,6 +23,7 @@ add_llvm_library(LLVMSupport
   Regex.cpp
   SlowOperationInformer.cpp
   SmallPtrSet.cpp
+  SmallVector.cpp
   SourceMgr.cpp
   Statistic.cpp
   StringExtras.cpp
diff --git a/lib/Support/SmallVector.cpp b/lib/Support/SmallVector.cpp
new file mode 100644
index 00000000000..6821382bb3c
--- /dev/null
+++ b/lib/Support/SmallVector.cpp
@@ -0,0 +1,37 @@
+//===- llvm/ADT/SmallVector.cpp - 'Normally small' vectors ----------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the SmallVector class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ADT/SmallVector.h"
+using namespace llvm;
+
+/// grow_pod - This is an implementation of the grow() method which only works
+/// on POD-like datatypes and is out of line to reduce code duplication.
+void SmallVectorBase::grow_pod(size_t MinSizeInBytes, size_t TSize) {
+  size_t CurSizeBytes = size_in_bytes();
+  size_t NewCapacityInBytes = 2 * capacity_in_bytes();
+  if (NewCapacityInBytes < MinSizeInBytes)
+    NewCapacityInBytes = MinSizeInBytes;
+  void *NewElts = operator new(NewCapacityInBytes);
+  
+  // Copy the elements over.  No need to run dtors on PODs.
+  memcpy(NewElts, this->BeginX, CurSizeBytes);
+  
+  // If this wasn't grown from the inline copy, deallocate the old space.
+  if (!this->isSmall())
+    operator delete(this->BeginX);
+  
+  this->EndX = (char*)NewElts+CurSizeBytes;
+  this->BeginX = NewElts;
+  this->CapacityX = (char*)this->BeginX + NewCapacityInBytes;
+}
+
-- 
2.34.1