//
// 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.
//
//===----------------------------------------------------------------------===//
//
namespace PPC {
// -m directive values.
enum {
+ DIR_NONE,
DIR_32,
DIR_601,
DIR_602,
};
}
-class Module;
class GlobalValue;
class TargetMachine;
class PPCSubtarget : public TargetSubtarget {
-public:
- enum AsmWriterFlavorTy {
- OldMnemonic, NewMnemonic, Unset
- };
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 HasLazyResolverStubs;
+
+ /// 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.
/// getTargetDataString - Return the pointer size and type alignment
/// properties of this subtarget.
const char *getTargetDataString() const {
- return isPPC64() ? "E-p:64:64-f64:32:64-i64:32:64"
- : "E-p:32:32-f64:32:64-i64:32:64";
+ // 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-f64:32:64-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;
// Specific obvious features.
bool hasFSQRT() const { return HasFSQRT; }
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(); }
- unsigned getAsmFlavor() const {
- return AsmFlavor != Unset ? unsigned(AsmFlavor) : 0;
- }
};
} // End llvm namespace