[AArch64] Enable PostRAScheduler for AArch64 generic build

[oota-llvm.git] / lib / Target / AArch64 / AArch64Subtarget.h

diff --git a/lib/Target/AArch64/AArch64Subtarget.h b/lib/Target/AArch64/AArch64Subtarget.h
index 771bc7b3e7e243a0a8ccc41ca1dee03ca4ed78ff..1b8b9b27719ca4cece74b6d0893d40e067398ce8 100644 (file)
--- a/lib/Target/AArch64/AArch64Subtarget.h
+++ b/lib/Target/AArch64/AArch64Subtarget.h
@@ -11,11 +11,15 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef AArch64SUBTARGET_H
-#define AArch64SUBTARGET_H
+#ifndef LLVM_LIB_TARGET_AARCH64_AARCH64SUBTARGET_H
+#define LLVM_LIB_TARGET_AARCH64_AARCH64SUBTARGET_H
 
 #include "AArch64FrameLowering.h"
+#include "AArch64ISelLowering.h"
+#include "AArch64InstrInfo.h"
 #include "AArch64RegisterInfo.h"
+#include "AArch64SelectionDAGInfo.h"
+#include "llvm/IR/DataLayout.h"
 #include "llvm/Target/TargetSubtargetInfo.h"
 #include <string>
 
@@ -25,18 +29,25 @@
 namespace llvm {
 class GlobalValue;
 class StringRef;
+class Triple;
 
 class AArch64Subtarget : public AArch64GenSubtargetInfo {
 protected:
-  enum ARMProcFamilyEnum {Others, CortexA53, CortexA57, Cyclone};
+  enum ARMProcFamilyEnum {Others, CortexA35, CortexA53, CortexA57, Cyclone};
 
   /// ARMProcFamily - ARM processor family: Cortex-A53, Cortex-A57, and others.
   ARMProcFamilyEnum ARMProcFamily;
 
+  bool HasV8_1aOps;
+  bool HasV8_2aOps;
+
   bool HasFPARMv8;
   bool HasNEON;
   bool HasCrypto;
   bool HasCRC;
+  bool HasPerfMon;
+  bool HasFullFP16;
+  bool HasSPE;
 
   // HasZeroCycleRegMove - Has zero-cycle register mov instructions.
   bool HasZeroCycleRegMove;
@@ -44,47 +55,96 @@ protected:
   // HasZeroCycleZeroing - Has zero-cycle zeroing instructions.
   bool HasZeroCycleZeroing;
 
+  // StrictAlign - Disallow unaligned memory accesses.
+  bool StrictAlign;
+
+  // ReserveX18 - X18 is not available as a general purpose register.
+  bool ReserveX18;
+
+  bool IsLittle;
+
   /// CPUString - String name of used CPU.
   std::string CPUString;
 
   /// TargetTriple - What processor and OS we're targeting.
   Triple TargetTriple;
 
-  /// IsLittleEndian - Is the target little endian?
-  bool IsLittleEndian;
-
   AArch64FrameLowering FrameLowering;
+  AArch64InstrInfo InstrInfo;
+  AArch64SelectionDAGInfo TSInfo;
+  AArch64TargetLowering TLInfo;
+private:
+  /// initializeSubtargetDependencies - Initializes using CPUString and the
+  /// passed in feature string so that we can use initializer lists for
+  /// subtarget initialization.
+  AArch64Subtarget &initializeSubtargetDependencies(StringRef FS);
 
 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);
+  AArch64Subtarget(const Triple &TT, const std::string &CPU,
+                   const std::string &FS, const TargetMachine &TM,
+                   bool LittleEndian);
 
-  const AArch64FrameLowering *getFrameLowering() const {
+  const AArch64SelectionDAGInfo *getSelectionDAGInfo() const override {
+    return &TSInfo;
+  }
+  const AArch64FrameLowering *getFrameLowering() const override {
     return &FrameLowering;
   }
-
+  const AArch64TargetLowering *getTargetLowering() const override {
+    return &TLInfo;
+  }
+  const AArch64InstrInfo *getInstrInfo() const override { return &InstrInfo; }
+  const AArch64RegisterInfo *getRegisterInfo() const override {
+    return &getInstrInfo()->getRegisterInfo();
+  }
+  const Triple &getTargetTriple() const { return TargetTriple; }
   bool enableMachineScheduler() const override { return true; }
+  bool enablePostRAScheduler() const override {
+    return isGeneric() || isCortexA53() || isCortexA57();
+  }
+
+  bool hasV8_1aOps() const { return HasV8_1aOps; }
+  bool hasV8_2aOps() const { return HasV8_2aOps; }
 
   bool hasZeroCycleRegMove() const { return HasZeroCycleRegMove; }
 
   bool hasZeroCycleZeroing() const { return HasZeroCycleZeroing; }
 
+  bool requiresStrictAlign() const { return StrictAlign; }
+
+  bool isX18Reserved() const { return ReserveX18; }
   bool hasFPARMv8() const { return HasFPARMv8; }
   bool hasNEON() const { return HasNEON; }
   bool hasCrypto() const { return HasCrypto; }
   bool hasCRC() const { return HasCRC; }
+  /// CPU has TBI (top byte of addresses is ignored during HW address
+  /// translation) and OS enables it.
+  bool supportsAddressTopByteIgnored() const;
 
-  bool isLittleEndian() const { return IsLittleEndian; }
+  bool hasPerfMon() const { return HasPerfMon; }
+  bool hasFullFP16() const { return HasFullFP16; }
+  bool hasSPE() const { return HasSPE; }
+
+  bool isLittleEndian() const { return IsLittle; }
 
   bool isTargetDarwin() const { return TargetTriple.isOSDarwin(); }
+  bool isTargetIOS() const { return TargetTriple.isiOS(); }
+  bool isTargetLinux() const { return TargetTriple.isOSLinux(); }
+  bool isTargetWindows() const { return TargetTriple.isOSWindows(); }
+  bool isTargetAndroid() const { return TargetTriple.isAndroid(); }
 
+  bool isTargetCOFF() const { return TargetTriple.isOSBinFormatCOFF(); }
   bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); }
-
   bool isTargetMachO() const { return TargetTriple.isOSBinFormatMachO(); }
 
+  bool isGeneric() const { return CPUString == "generic"; }
   bool isCyclone() const { return CPUString == "cyclone"; }
+  bool isCortexA57() const { return CPUString == "cortex-a57"; }
+  bool isCortexA53() const { return CPUString == "cortex-a53"; }
+
+  bool useAA() const override { return isCortexA53(); }
 
   /// getMaxInlineSizeThreshold - Returns the maximum memset / memcpy size
   /// that still makes it profitable to inline the call.
@@ -111,7 +171,9 @@ public:
                            unsigned NumRegionInstrs) const override;
 
   bool enableEarlyIfConversion() const override;
+
+  std::unique_ptr<PBQPRAConstraint> getCustomPBQPConstraints() const override;
 };
 } // End llvm namespace
 
-#endif // AArch64SUBTARGET_H
+#endif