2012-02-18 20:03:15 +08:00
|
|
|
//===-- PPCSubtarget.h - Define Subtarget for the PPC ----------*- C++ -*--===//
|
2005-08-04 15:12:09 +08:00
|
|
|
//
|
|
|
|
// The LLVM Compiler Infrastructure
|
|
|
|
//
|
2007-12-30 04:36:04 +08:00
|
|
|
// This file is distributed under the University of Illinois Open Source
|
|
|
|
// License. See LICENSE.TXT for details.
|
2005-08-04 15:12:09 +08:00
|
|
|
//
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
//
|
2011-07-02 05:01:15 +08:00
|
|
|
// This file declares the PowerPC specific subclass of TargetSubtargetInfo.
|
2005-08-04 15:12:09 +08:00
|
|
|
//
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
|
|
|
#ifndef POWERPCSUBTARGET_H
|
|
|
|
#define POWERPCSUBTARGET_H
|
|
|
|
|
2011-07-02 05:01:15 +08:00
|
|
|
#include "llvm/Target/TargetSubtargetInfo.h"
|
2011-06-29 09:14:12 +08:00
|
|
|
#include "llvm/MC/MCInstrItineraries.h"
|
|
|
|
#include "llvm/ADT/Triple.h"
|
2005-09-02 05:38:21 +08:00
|
|
|
#include <string>
|
|
|
|
|
2011-07-02 04:45:01 +08:00
|
|
|
#define GET_SUBTARGETINFO_HEADER
|
2011-07-02 06:36:09 +08:00
|
|
|
#include "PPCGenSubtargetInfo.inc"
|
2011-07-02 04:45:01 +08:00
|
|
|
|
2007-01-19 12:36:02 +08:00
|
|
|
// GCC #defines PPC on Linux but we use it as our namespace name
|
|
|
|
#undef PPC
|
|
|
|
|
2005-08-04 15:12:09 +08:00
|
|
|
namespace llvm {
|
2011-07-07 15:07:08 +08:00
|
|
|
class StringRef;
|
2006-12-13 04:57:08 +08:00
|
|
|
|
|
|
|
namespace PPC {
|
|
|
|
// -m directive values.
|
|
|
|
enum {
|
2008-02-15 07:35:16 +08:00
|
|
|
DIR_NONE,
|
2006-12-13 04:57:08 +08:00
|
|
|
DIR_32,
|
2011-10-17 12:03:49 +08:00
|
|
|
DIR_440,
|
2006-12-13 04:57:08 +08:00
|
|
|
DIR_601,
|
|
|
|
DIR_602,
|
|
|
|
DIR_603,
|
|
|
|
DIR_7400,
|
|
|
|
DIR_750,
|
|
|
|
DIR_970,
|
2012-04-02 03:22:40 +08:00
|
|
|
DIR_A2,
|
2012-08-29 00:12:39 +08:00
|
|
|
DIR_E500mc,
|
|
|
|
DIR_E5500,
|
2012-06-11 23:43:08 +08:00
|
|
|
DIR_PWR6,
|
|
|
|
DIR_PWR7,
|
2006-12-13 04:57:08 +08:00
|
|
|
DIR_64
|
|
|
|
};
|
|
|
|
}
|
|
|
|
|
2006-12-12 07:22:45 +08:00
|
|
|
class GlobalValue;
|
|
|
|
class TargetMachine;
|
|
|
|
|
2011-07-02 04:45:01 +08:00
|
|
|
class PPCSubtarget : public PPCGenSubtargetInfo {
|
2005-08-04 15:12:09 +08:00
|
|
|
protected:
|
|
|
|
/// stackAlignment - The minimum alignment known to hold of the stack frame on
|
|
|
|
/// entry to the function and which must be maintained by every function.
|
2005-08-06 06:05:03 +08:00
|
|
|
unsigned StackAlignment;
|
2005-11-02 04:06:59 +08:00
|
|
|
|
|
|
|
/// Selected instruction itineraries (one entry per itinerary class.)
|
|
|
|
InstrItineraryData InstrItins;
|
2006-12-13 04:57:08 +08:00
|
|
|
|
|
|
|
/// Which cpu directive was used.
|
|
|
|
unsigned DarwinDirective;
|
2005-08-04 15:12:09 +08:00
|
|
|
|
|
|
|
/// Used by the ISel to turn in optimizations for POWER4-derived architectures
|
2012-06-12 03:57:01 +08:00
|
|
|
bool HasMFOCRF;
|
2006-06-17 01:34:12 +08:00
|
|
|
bool Has64BitSupport;
|
|
|
|
bool Use64BitRegs;
|
2006-06-17 01:50:12 +08:00
|
|
|
bool IsPPC64;
|
2005-10-27 01:30:34 +08:00
|
|
|
bool HasAltivec;
|
2005-09-03 02:33:05 +08:00
|
|
|
bool HasFSQRT;
|
2006-02-28 15:08:22 +08:00
|
|
|
bool HasSTFIWX;
|
2012-06-23 07:10:08 +08:00
|
|
|
bool HasISEL;
|
2011-10-17 12:03:49 +08:00
|
|
|
bool IsBookE;
|
2006-12-12 07:22:45 +08:00
|
|
|
bool HasLazyResolverStubs;
|
2010-08-05 04:47:44 +08:00
|
|
|
bool IsJITCodeModel;
|
2008-01-03 03:35:16 +08:00
|
|
|
|
2011-04-20 04:54:28 +08:00
|
|
|
/// TargetTriple - What processor and OS we're targeting.
|
|
|
|
Triple TargetTriple;
|
|
|
|
|
2005-08-04 15:12:09 +08:00
|
|
|
public:
|
|
|
|
/// This constructor initializes the data members to match that
|
2009-08-03 06:11:08 +08:00
|
|
|
/// of the specified triple.
|
2005-08-04 15:12:09 +08:00
|
|
|
///
|
2011-06-30 09:53:36 +08:00
|
|
|
PPCSubtarget(const std::string &TT, const std::string &CPU,
|
|
|
|
const std::string &FS, bool is64Bit);
|
2005-10-27 01:30:34 +08:00
|
|
|
|
|
|
|
/// ParseSubtargetFeatures - Parses features string setting specified
|
2005-10-27 02:07:50 +08:00
|
|
|
/// subtarget options. Definition of function is auto generated by tblgen.
|
2011-07-07 15:07:08 +08:00
|
|
|
void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
|
2006-12-12 07:22:45 +08:00
|
|
|
|
|
|
|
/// SetJITMode - This is called to inform the subtarget info that we are
|
|
|
|
/// producing code for the JIT.
|
|
|
|
void SetJITMode();
|
2005-08-04 15:12:09 +08:00
|
|
|
|
|
|
|
/// getStackAlignment - Returns the minimum alignment known to hold of the
|
|
|
|
/// stack frame on entry to the function and which must be maintained by every
|
|
|
|
/// function for this subtarget.
|
2005-08-06 06:05:03 +08:00
|
|
|
unsigned getStackAlignment() const { return StackAlignment; }
|
2005-11-02 04:06:59 +08:00
|
|
|
|
2006-12-13 04:57:08 +08:00
|
|
|
/// getDarwinDirective - Returns the -m directive specified for the cpu.
|
|
|
|
///
|
|
|
|
unsigned getDarwinDirective() const { return DarwinDirective; }
|
|
|
|
|
2005-11-02 04:06:59 +08:00
|
|
|
/// getInstrItins - Return the instruction itineraies based on subtarget
|
|
|
|
/// selection.
|
2006-12-12 05:42:55 +08:00
|
|
|
const InstrItineraryData &getInstrItineraryData() const { return InstrItins; }
|
2006-06-17 01:50:12 +08:00
|
|
|
|
2012-10-09 00:38:25 +08:00
|
|
|
/// getDataLayoutString - Return the pointer size and type alignment
|
2006-06-17 01:50:12 +08:00
|
|
|
/// properties of this subtarget.
|
2012-10-09 00:38:25 +08:00
|
|
|
const char *getDataLayoutString() const {
|
2009-02-27 08:56:35 +08:00
|
|
|
// Note, the alignment values for f64 and i64 on ppc64 in Darwin
|
|
|
|
// documentation are wrong; these are correct (i.e. "what gcc does").
|
2009-11-08 03:07:32 +08:00
|
|
|
return isPPC64() ? "E-p:64:64-f64:64:64-i64:64:64-f128:64:128-n32:64"
|
2011-07-04 00:24:07 +08:00
|
|
|
: "E-p:32:32-f64:64:64-i64:64:64-f128:64:128-n32";
|
2006-06-16 09:37:27 +08:00
|
|
|
}
|
2005-08-04 15:12:09 +08:00
|
|
|
|
2006-06-17 01:50:12 +08:00
|
|
|
/// isPPC64 - Return true if we are generating code for 64-bit pointer mode.
|
|
|
|
///
|
|
|
|
bool isPPC64() const { return IsPPC64; }
|
|
|
|
|
|
|
|
/// has64BitSupport - Return true if the selected CPU supports 64-bit
|
|
|
|
/// instructions, regardless of whether we are in 32-bit or 64-bit mode.
|
|
|
|
bool has64BitSupport() const { return Has64BitSupport; }
|
|
|
|
|
|
|
|
/// use64BitRegs - Return true if in 64-bit mode or if we should use 64-bit
|
|
|
|
/// registers in 32-bit mode when possible. This can only true if
|
|
|
|
/// has64BitSupport() returns true.
|
|
|
|
bool use64BitRegs() const { return Use64BitRegs; }
|
|
|
|
|
2006-12-12 07:22:45 +08:00
|
|
|
/// 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.
|
2009-08-03 06:11:08 +08:00
|
|
|
bool hasLazyResolverStub(const GlobalValue *GV,
|
|
|
|
const TargetMachine &TM) const;
|
2006-06-17 01:50:12 +08:00
|
|
|
|
2010-08-05 04:47:44 +08:00
|
|
|
// isJITCodeModel - True if we're generating code for the JIT
|
|
|
|
bool isJITCodeModel() const { return IsJITCodeModel; }
|
|
|
|
|
2006-06-17 01:50:12 +08:00
|
|
|
// Specific obvious features.
|
2005-09-03 02:33:05 +08:00
|
|
|
bool hasFSQRT() const { return HasFSQRT; }
|
2006-02-28 15:08:22 +08:00
|
|
|
bool hasSTFIWX() const { return HasSTFIWX; }
|
2005-10-27 01:30:34 +08:00
|
|
|
bool hasAltivec() const { return HasAltivec; }
|
2012-06-12 03:57:01 +08:00
|
|
|
bool hasMFOCRF() const { return HasMFOCRF; }
|
2012-06-23 07:10:08 +08:00
|
|
|
bool hasISEL() const { return HasISEL; }
|
2011-10-17 12:03:49 +08:00
|
|
|
bool isBookE() const { return IsBookE; }
|
2007-01-16 17:29:17 +08:00
|
|
|
|
2011-04-20 04:54:28 +08:00
|
|
|
const Triple &getTargetTriple() const { return TargetTriple; }
|
|
|
|
|
2008-01-03 03:35:16 +08:00
|
|
|
/// isDarwin - True if this is any darwin platform.
|
2011-04-20 08:14:25 +08:00
|
|
|
bool isDarwin() const { return TargetTriple.isMacOSX(); }
|
2012-04-03 03:09:04 +08:00
|
|
|
/// isBGP - True if this is a BG/P platform.
|
|
|
|
bool isBGP() const { return TargetTriple.getVendor() == Triple::BGP; }
|
2008-12-19 18:55:56 +08:00
|
|
|
|
2009-08-15 19:54:46 +08:00
|
|
|
bool isDarwinABI() const { return isDarwin(); }
|
|
|
|
bool isSVR4ABI() const { return !isDarwin(); }
|
|
|
|
|
2011-12-02 12:58:02 +08:00
|
|
|
/// enablePostRAScheduler - True at 'More' optimization.
|
|
|
|
bool enablePostRAScheduler(CodeGenOpt::Level OptLevel,
|
|
|
|
TargetSubtargetInfo::AntiDepBreakMode& Mode,
|
|
|
|
RegClassVector& CriticalPathRCs) const;
|
2005-08-04 15:12:09 +08:00
|
|
|
};
|
|
|
|
} // End llvm namespace
|
|
|
|
|
|
|
|
#endif
|