From 57c2319bb30b7c6bdcca77a784d148b2430b4660 Mon Sep 17 00:00:00 2001
From: Eric Christopher <echristo@gmail.com>
Date: Tue, 10 Jun 2014 18:06:25 +0000
Subject: [PATCH] Remove caching of the subtarget for AArch64SelectionDAGInfo.

llvm-svn: 210553
---
 llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.cpp | 7 ++++---
 llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.h   | 4 ----
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.cpp b/llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.cpp
index 0740b3d7e6f7..a62c721c7e1c 100644
--- a/llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.cpp
+++ b/llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.cpp
@@ -17,8 +17,7 @@ using namespace llvm;
 #define DEBUG_TYPE "aarch64-selectiondag-info"
 
 AArch64SelectionDAGInfo::AArch64SelectionDAGInfo(const TargetMachine &TM)
-    : TargetSelectionDAGInfo(TM.getDataLayout()),
-      Subtarget(&TM.getSubtarget<AArch64Subtarget>()) {}
+    : TargetSelectionDAGInfo(TM.getDataLayout()) {}
 
 AArch64SelectionDAGInfo::~AArch64SelectionDAGInfo() {}
 
@@ -30,7 +29,9 @@ SDValue AArch64SelectionDAGInfo::EmitTargetCodeForMemset(
   ConstantSDNode *V = dyn_cast<ConstantSDNode>(Src);
   ConstantSDNode *SizeValue = dyn_cast<ConstantSDNode>(Size);
   const char *bzeroEntry =
-      (V && V->isNullValue()) ? Subtarget->getBZeroEntry() : nullptr;
+      (V && V->isNullValue())
+          ? DAG.getTarget().getSubtarget<AArch64Subtarget>().getBZeroEntry()
+          : nullptr;
   // For small size (< 256), it is not beneficial to use bzero
   // instead of memset.
   if (bzeroEntry && (!SizeValue || SizeValue->getZExtValue() > 256)) {
diff --git a/llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.h b/llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.h
index 8381f9916a8c..c2e0c60dff01 100644
--- a/llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.h
+++ b/llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.h
@@ -19,10 +19,6 @@
 namespace llvm {
 
 class AArch64SelectionDAGInfo : public TargetSelectionDAGInfo {
-  /// Subtarget - Keep a pointer to the ARMSubtarget around so that we can
-  /// make the right decision when generating code for different targets.
-  const AArch64Subtarget *Subtarget;
-
 public:
   explicit AArch64SelectionDAGInfo(const TargetMachine &TM);
   ~AArch64SelectionDAGInfo();