From 1dd55ba94e848b1b0c04fdb75b2da6e1f613fbe1 Mon Sep 17 00:00:00 2001
From: Eric Christopher <echristo@gmail.com>
Date: Tue, 14 Oct 2014 07:22:00 +0000
Subject: [PATCH] Grab the subtarget and subtarget dependent variables off of
 MachineFunction rather than TargetMachine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219671 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/RegAllocFast.cpp       |  7 ++-----
 lib/CodeGen/RegAllocGreedy.cpp     |  8 ++++----
 lib/CodeGen/RegisterScavenging.cpp |  6 ++----
 lib/CodeGen/SplitKit.cpp           | 10 ++--------
 4 files changed, 10 insertions(+), 21 deletions(-)

diff --git a/lib/CodeGen/RegAllocFast.cpp b/lib/CodeGen/RegAllocFast.cpp
index 5efbb6306b6..8cc6f338947 100644
--- a/lib/CodeGen/RegAllocFast.cpp
+++ b/lib/CodeGen/RegAllocFast.cpp
@@ -33,7 +33,6 @@
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Target/TargetInstrInfo.h"
-#include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetSubtargetInfo.h"
 #include <algorithm>
 using namespace llvm;
@@ -54,7 +53,6 @@ namespace {
     RAFast() : MachineFunctionPass(ID), StackSlotForVirtReg(-1),
                isBulkSpilling(false) {}
   private:
-    const TargetMachine *TM;
     MachineFunction *MF;
     MachineRegisterInfo *MRI;
     const TargetRegisterInfo *TRI;
@@ -1078,9 +1076,8 @@ bool RAFast::runOnMachineFunction(MachineFunction &Fn) {
                << "********** Function: " << Fn.getName() << '\n');
   MF = &Fn;
   MRI = &MF->getRegInfo();
-  TM = &Fn.getTarget();
-  TRI = TM->getSubtargetImpl()->getRegisterInfo();
-  TII = TM->getSubtargetImpl()->getInstrInfo();
+  TRI = MF->getSubtarget().getRegisterInfo();
+  TII = MF->getSubtarget().getInstrInfo();
   MRI->freezeReservedRegs(Fn);
   RegClassInfo.runOnMachineFunction(Fn);
   UsedInInstr.clear();
diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp
index 223c5e159a7..1d081c748d4 100644
--- a/lib/CodeGen/RegAllocGreedy.cpp
+++ b/lib/CodeGen/RegAllocGreedy.cpp
@@ -2317,13 +2317,13 @@ bool RAGreedy::runOnMachineFunction(MachineFunction &mf) {
                << "********** Function: " << mf.getName() << '\n');
 
   MF = &mf;
-  const TargetMachine &TM = MF->getTarget();
-  TRI = TM.getSubtargetImpl()->getRegisterInfo();
-  TII = TM.getSubtargetImpl()->getInstrInfo();
+  TRI = MF->getSubtarget().getRegisterInfo();
+  TII = MF->getSubtarget().getInstrInfo();
   RCI.runOnMachineFunction(mf);
 
   EnableLocalReassign = EnableLocalReassignment ||
-    TM.getSubtargetImpl()->enableRALocalReassignment(TM.getOptLevel());
+                        MF->getSubtarget().enableRALocalReassignment(
+                            MF->getTarget().getOptLevel());
 
   if (VerifyEnabled)
     MF->verify(this, "Before greedy register allocator");
diff --git a/lib/CodeGen/RegisterScavenging.cpp b/lib/CodeGen/RegisterScavenging.cpp
index c68e20520a5..7626dd29c00 100644
--- a/lib/CodeGen/RegisterScavenging.cpp
+++ b/lib/CodeGen/RegisterScavenging.cpp
@@ -24,7 +24,6 @@
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Target/TargetInstrInfo.h"
-#include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/Target/TargetSubtargetInfo.h"
 using namespace llvm;
@@ -63,9 +62,8 @@ void RegScavenger::initRegState() {
 
 void RegScavenger::enterBasicBlock(MachineBasicBlock *mbb) {
   MachineFunction &MF = *mbb->getParent();
-  const TargetMachine &TM = MF.getTarget();
-  TII = TM.getSubtargetImpl()->getInstrInfo();
-  TRI = TM.getSubtargetImpl()->getRegisterInfo();
+  TII = MF.getSubtarget().getInstrInfo();
+  TRI = MF.getSubtarget().getRegisterInfo();
   MRI = &MF.getRegInfo();
 
   assert((NumRegUnits == 0 || NumRegUnits == TRI->getNumRegUnits()) &&
diff --git a/lib/CodeGen/SplitKit.cpp b/lib/CodeGen/SplitKit.cpp
index 80c9a83cb69..ea7b914c254 100644
--- a/lib/CodeGen/SplitKit.cpp
+++ b/lib/CodeGen/SplitKit.cpp
@@ -320,14 +320,8 @@ SplitEditor::SplitEditor(SplitAnalysis &sa, LiveIntervals &lis, VirtRegMap &vrm,
                          MachineDominatorTree &mdt,
                          MachineBlockFrequencyInfo &mbfi)
     : SA(sa), LIS(lis), VRM(vrm), MRI(vrm.getMachineFunction().getRegInfo()),
-      MDT(mdt), TII(*vrm.getMachineFunction()
-                         .getTarget()
-                         .getSubtargetImpl()
-                         ->getInstrInfo()),
-      TRI(*vrm.getMachineFunction()
-               .getTarget()
-               .getSubtargetImpl()
-               ->getRegisterInfo()),
+      MDT(mdt), TII(*vrm.getMachineFunction().getSubtarget().getInstrInfo()),
+      TRI(*vrm.getMachineFunction().getSubtarget().getRegisterInfo()),
       MBFI(mbfi), Edit(nullptr), OpenIdx(0), SpillMode(SM_Partition),
       RegAssign(Allocator) {}
 
-- 
2.34.1