-//=====-- PPCSubtarget.h - Define Subtarget for the PPC -------*- C++ -*--====//
+//===-- PPCSubtarget.h - Define Subtarget for the PPC ----------*- C++ -*--===//
//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Nate Begeman and is distributed under the
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
-// This file declares the PowerPC specific subclass of TargetSubtarget.
+// This file declares the PowerPC specific subclass of TargetSubtargetInfo.
//
//===----------------------------------------------------------------------===//
#ifndef POWERPCSUBTARGET_H
#define POWERPCSUBTARGET_H
-#include "llvm/Target/TargetInstrItineraries.h"
-#include "llvm/Target/TargetSubtarget.h"
-
+#include "llvm/Target/TargetSubtargetInfo.h"
+#include "llvm/MC/MCInstrItineraries.h"
+#include "llvm/ADT/Triple.h"
#include <string>
+#define GET_SUBTARGETINFO_HEADER
+#include "PPCGenSubtargetInfo.inc"
+
// GCC #defines PPC on Linux but we use it as our namespace name
#undef PPC
namespace llvm {
+class StringRef;
namespace PPC {
// -m directive values.
enum {
+ DIR_NONE,
DIR_32,
+ DIR_440,
DIR_601,
DIR_602,
DIR_603,
DIR_7400,
DIR_750,
DIR_970,
+ DIR_A2,
DIR_64
};
}
-class Module;
class GlobalValue;
class TargetMachine;
-class PPCSubtarget : public TargetSubtarget {
-public:
- enum AsmWriterFlavorTy {
- OldMnemonic, NewMnemonic, Unset
- };
+class PPCSubtarget : public PPCGenSubtargetInfo {
protected:
- const TargetMachine &TM;
-
/// stackAlignment - The minimum alignment known to hold of the stack frame on
/// entry to the function and which must be maintained by every function.
unsigned StackAlignment;
/// Which cpu directive was used.
unsigned DarwinDirective;
- /// AsmFlavor - Which PPC asm dialect to use.
- AsmWriterFlavorTy AsmFlavor;
-
/// Used by the ISel to turn in optimizations for POWER4-derived architectures
bool IsGigaProcessor;
bool Has64BitSupport;
bool HasAltivec;
bool HasFSQRT;
bool HasSTFIWX;
- bool IsDarwin;
+ bool IsBookE;
bool HasLazyResolverStubs;
+ bool IsJITCodeModel;
+
+ /// TargetTriple - What processor and OS we're targeting.
+ Triple TargetTriple;
+
public:
/// This constructor initializes the data members to match that
- /// of the specified module.
+ /// of the specified triple.
///
- PPCSubtarget(const TargetMachine &TM, const Module &M,
+ PPCSubtarget(const std::string &TT, const std::string &CPU,
const std::string &FS, bool is64Bit);
/// ParseSubtargetFeatures - Parses features string setting specified
/// subtarget options. Definition of function is auto generated by tblgen.
- void ParseSubtargetFeatures(const std::string &FS, const std::string &CPU);
+ void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
/// SetJITMode - This is called to inform the subtarget info that we are
/// producing code for the JIT.
/// getTargetDataString - Return the pointer size and type alignment
/// properties of this subtarget.
const char *getTargetDataString() const {
- return isPPC64() ? "E-p:64:64-d:32:64-l:32:64"
- : "E-p:32:32-d:32:64-l:32:64";
+ // Note, the alignment values for f64 and i64 on ppc64 in Darwin
+ // documentation are wrong; these are correct (i.e. "what gcc does").
+ return isPPC64() ? "E-p:64:64-f64:64:64-i64:64:64-f128:64:128-n32:64"
+ : "E-p:32:32-f64:64:64-i64:64:64-f128:64:128-n32";
}
/// isPPC64 - Return true if we are generating code for 64-bit pointer mode.
/// hasLazyResolverStub - Return true if accesses to the specified global have
/// to go through a dyld lazy resolution stub. This means that an extra load
/// is required to get the address of the global.
- bool hasLazyResolverStub(const GlobalValue *GV) const;
+ bool hasLazyResolverStub(const GlobalValue *GV,
+ const TargetMachine &TM) const;
+ // isJITCodeModel - True if we're generating code for the JIT
+ bool isJITCodeModel() const { return IsJITCodeModel; }
+
// Specific obvious features.
bool hasFSQRT() const { return HasFSQRT; }
bool hasSTFIWX() const { return HasSTFIWX; }
bool hasAltivec() const { return HasAltivec; }
bool isGigaProcessor() const { return IsGigaProcessor; }
+ bool isBookE() const { return IsBookE; }
- bool isDarwin() const { return IsDarwin; }
+ const Triple &getTargetTriple() const { return TargetTriple; }
- unsigned getAsmFlavor() const {
- return AsmFlavor != Unset ? unsigned(AsmFlavor) : 0;
- }
+ /// isDarwin - True if this is any darwin platform.
+ bool isDarwin() const { return TargetTriple.isMacOSX(); }
+ /// isBGP - True if this is a BG/P platform.
+ bool isBGP() const { return TargetTriple.getVendor() == Triple::BGP; }
+
+ bool isDarwinABI() const { return isDarwin(); }
+ bool isSVR4ABI() const { return !isDarwin(); }
+
+ /// enablePostRAScheduler - True at 'More' optimization.
+ bool enablePostRAScheduler(CodeGenOpt::Level OptLevel,
+ TargetSubtargetInfo::AntiDepBreakMode& Mode,
+ RegClassVector& CriticalPathRCs) const;
};
} // End llvm namespace