Move AArch64TargetLowering to AArch64Subtarget.

This currently necessitates a TargetMachine for the TargetLowering
constructor and TLOF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210605 91177308-0d34-0410-b5e6-96231b3b80d8

6 files changed, 13 insertions, 9 deletions

diff --git a/lib/Target/AArch64/AArch64ISelLowering.cpp b/lib/Target/AArch64/AArch64ISelLowering.cpp
index e2ed20d861..79312adbd2 100644
--- a/lib/Target/AArch64/AArch64ISelLowering.cpp
+++ b/lib/Target/AArch64/AArch64ISelLowering.cpp
@@ -74,7 +74,7 @@ static TargetLoweringObjectFile *createTLOF(const Triple &TT) {
   return new AArch64_ELFTargetObjectFile();
 }
 
-AArch64TargetLowering::AArch64TargetLowering(AArch64TargetMachine &TM)
+AArch64TargetLowering::AArch64TargetLowering(TargetMachine &TM)
     : TargetLowering(TM, createTLOF(Triple(TM.getTargetTriple()))) {
   Subtarget = &TM.getSubtarget<AArch64Subtarget>();
 
diff --git a/lib/Target/AArch64/AArch64ISelLowering.h b/lib/Target/AArch64/AArch64ISelLowering.h
index de16c4d9d4..139217d344 100644
--- a/lib/Target/AArch64/AArch64ISelLowering.h
+++ b/lib/Target/AArch64/AArch64ISelLowering.h
@@ -197,7 +197,7 @@ class AArch64TargetLowering : public TargetLowering {
   bool RequireStrictAlign;
 
 public:
-  explicit AArch64TargetLowering(AArch64TargetMachine &TM);
+  explicit AArch64TargetLowering(TargetMachine &TM);
 
   /// Selects the correct CCAssignFn for a the given CallingConvention
   /// value.
diff --git a/lib/Target/AArch64/AArch64Subtarget.cpp b/lib/Target/AArch64/AArch64Subtarget.cpp
index f01a70b65c..a1e8b87ed9 100644
--- a/lib/Target/AArch64/AArch64Subtarget.cpp
+++ b/lib/Target/AArch64/AArch64Subtarget.cpp
@@ -32,7 +32,8 @@ EnableEarlyIfConvert("aarch64-early-ifcvt", cl::desc("Enable the early if "
 
 AArch64Subtarget::AArch64Subtarget(const std::string &TT,
                                    const std::string &CPU,
-                                   const std::string &FS, bool LittleEndian)
+                                   const std::string &FS, TargetMachine &TM,
+                                   bool LittleEndian)
     : AArch64GenSubtargetInfo(TT, CPU, FS), ARMProcFamily(Others),
       HasFPARMv8(false), HasNEON(false), HasCrypto(false), HasCRC(false),
       HasZeroCycleRegMove(false), HasZeroCycleZeroing(false), CPUString(CPU),
@@ -51,6 +52,7 @@ AArch64Subtarget::AArch64Subtarget(const std::string &TT,
     CPUString = "generic";
 
   ParseSubtargetFeatures(CPUString, FS);
+  TLInfo = make_unique<AArch64TargetLowering>(TM);
 }
 
 /// ClassifyGlobalReference - Find the target operand flags that describe
diff --git a/lib/Target/AArch64/AArch64Subtarget.h b/lib/Target/AArch64/AArch64Subtarget.h
index d8930706cf..3eef248806 100644
--- a/lib/Target/AArch64/AArch64Subtarget.h
+++ b/lib/Target/AArch64/AArch64Subtarget.h
@@ -16,6 +16,7 @@
 
 #include "AArch64InstrInfo.h"
 #include "AArch64FrameLowering.h"
+#include "AArch64ISelLowering.h"
 #include "AArch64RegisterInfo.h"
 #include "AArch64SelectionDAGInfo.h"
 #include "llvm/IR/DataLayout.h"
@@ -57,17 +58,21 @@ protected:
   AArch64FrameLowering FrameLowering;
   AArch64InstrInfo InstrInfo;
   AArch64SelectionDAGInfo TSInfo;
+  std::unique_ptr<AArch64TargetLowering> TLInfo;
 
 public:
   /// This constructor initializes the data members to match that
   /// of the specified triple.
   AArch64Subtarget(const std::string &TT, const std::string &CPU,
-                 const std::string &FS, bool LittleEndian);
+		   const std::string &FS, TargetMachine &TM, bool LittleEndian);
 
   const AArch64SelectionDAGInfo *getSelectionDAGInfo() const { return &TSInfo; }
   const AArch64FrameLowering *getFrameLowering() const {
     return &FrameLowering;
   }
+  const AArch64TargetLowering *getTargetLowering() const {
+    return TLInfo.get();
+  }
   const AArch64InstrInfo *getInstrInfo() const { return &InstrInfo; }
   const DataLayout *getDataLayout() const { return &DL; }
   bool enableMachineScheduler() const override { return true; }
diff --git a/lib/Target/AArch64/AArch64TargetMachine.cpp b/lib/Target/AArch64/AArch64TargetMachine.cpp
index 7a8d0e79d4..f99b90b800 100644
--- a/lib/Target/AArch64/AArch64TargetMachine.cpp
+++ b/lib/Target/AArch64/AArch64TargetMachine.cpp
@@ -77,7 +77,7 @@ AArch64TargetMachine::AArch64TargetMachine(const Target &T, StringRef TT,
                                            CodeGenOpt::Level OL,
                                            bool LittleEndian)
     : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
-      Subtarget(TT, CPU, FS, LittleEndian), TLInfo(*this) {
+      Subtarget(TT, CPU, FS, *this, LittleEndian) {
   initAsmInfo();
 }
 
diff --git a/lib/Target/AArch64/AArch64TargetMachine.h b/lib/Target/AArch64/AArch64TargetMachine.h
index 937c17ffd1..6a159e91e2 100644
--- a/lib/Target/AArch64/AArch64TargetMachine.h
+++ b/lib/Target/AArch64/AArch64TargetMachine.h
@@ -29,9 +29,6 @@ class AArch64TargetMachine : public LLVMTargetMachine {
 protected:
   AArch64Subtarget Subtarget;
 
-private:
-  AArch64TargetLowering TLInfo;
-
 public:
   AArch64TargetMachine(const Target &T, StringRef TT, StringRef CPU,
                        StringRef FS, const TargetOptions &Options,
@@ -42,7 +39,7 @@ public:
     return &Subtarget;
   }
   const AArch64TargetLowering *getTargetLowering() const override {
-    return &TLInfo;
+    return getSubtargetImpl()->getTargetLowering();
   }
   const DataLayout *getDataLayout() const override {
     return getSubtargetImpl()->getDataLayout();