//
// 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.
//
//===----------------------------------------------------------------------===//
//
#include <string>
+// GCC #defines PPC on Linux but we use it as our namespace name
+#undef PPC
+
namespace llvm {
-class Module;
+
+namespace PPC {
+ // -m directive values.
+ enum {
+ DIR_NONE,
+ DIR_32,
+ DIR_601,
+ DIR_602,
+ DIR_603,
+ DIR_7400,
+ DIR_750,
+ DIR_970,
+ DIR_64
+ };
+}
+
class GlobalValue;
class TargetMachine;
class PPCSubtarget : public TargetSubtarget {
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;
/// Selected instruction itineraries (one entry per itinerary class.)
InstrItineraryData InstrItins;
+
+ /// Which cpu directive was used.
+ unsigned DarwinDirective;
/// Used by the ISel to turn in optimizations for POWER4-derived architectures
bool IsGigaProcessor;
bool HasAltivec;
bool HasFSQRT;
bool HasSTFIWX;
- bool IsDarwin;
bool HasLazyResolverStubs;
+ bool IsJITCodeModel;
+
+ /// DarwinVers - Nonzero if this is a darwin platform. Otherwise, the numeric
+ /// version of the platform, e.g. 8 = 10.4 (Tiger), 9 = 10.5 (Leopard), etc.
+ unsigned char DarwinVers; // Is any darwin-ppc platform.
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,
- const std::string &FS, bool is64Bit);
+ PPCSubtarget(const std::string &TT, 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);
+ std::string ParseSubtargetFeatures(const std::string &FS,
+ const std::string &CPU);
+
/// SetJITMode - This is called to inform the subtarget info that we are
/// producing code for the JIT.
/// function for this subtarget.
unsigned getStackAlignment() const { return StackAlignment; }
+ /// getDarwinDirective - Returns the -m directive specified for the cpu.
+ ///
+ unsigned getDarwinDirective() const { return DarwinDirective; }
+
/// getInstrItins - Return the instruction itineraies based on subtarget
/// selection.
const InstrItineraryData &getInstrItineraryData() const { return InstrItins; }
/// getTargetDataString - Return the pointer size and type alignment
/// properties of this subtarget.
const char *getTargetDataString() const {
- return isPPC64() ? "E-p:64:64-d:32-l:32" : "E-p:32:32-d:32-l:32";
+ // 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-f64:32:64-i64:32:64-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 isDarwin() const { return IsDarwin; }
+
+ /// isDarwin - True if this is any darwin platform.
+ bool isDarwin() const { return DarwinVers != 0; }
+ /// isDarwin - True if this is darwin9 (leopard, 10.5) or above.
+ bool isDarwin9() const { return DarwinVers >= 9; }
+
+ /// getDarwinVers - Return the darwin version number, 8 = tiger, 9 = leopard.
+ unsigned getDarwinVers() const { return DarwinVers; }
+
+ bool isDarwinABI() const { return isDarwin(); }
+ bool isSVR4ABI() const { return !isDarwin(); }
+
};
} // End llvm namespace