namespace llvm {
+class Target;
class TargetAsmInfo;
class TargetData;
class TargetSubtarget;
class TargetFrameInfo;
class MachineCodeEmitter;
class JITCodeEmitter;
+class ObjectCodeEmitter;
class TargetRegisterInfo;
-class Module;
class PassManagerBase;
class PassManager;
class Pass;
class TargetMachOWriterInfo;
class TargetELFWriterInfo;
-class raw_ostream;
+class formatted_raw_ostream;
// Relocation model types.
namespace Reloc {
TargetMachine(const TargetMachine &); // DO NOT IMPLEMENT
void operator=(const TargetMachine &); // DO NOT IMPLEMENT
protected: // Can only create subclasses.
- TargetMachine();
+ TargetMachine(const Target &);
/// getSubtargetImpl - virtual method implemented by subclasses that returns
/// a reference to that target's TargetSubtarget-derived member variable.
virtual const TargetSubtarget *getSubtargetImpl() const { return 0; }
+
+ /// TheTarget - The Target that this machine was created for.
+ const Target &TheTarget;
/// AsmInfo - Contains target specific asm information.
///
public:
virtual ~TargetMachine();
- /// getModuleMatchQuality - This static method should be implemented by
- /// targets to indicate how closely they match the specified module. This is
- /// used by the LLC tool to determine which target to use when an explicit
- /// -march option is not specified. If a target returns zero, it will never
- /// be chosen without an explicit -march option.
- static unsigned getModuleMatchQuality(const Module &) { return 0; }
-
- /// getJITMatchQuality - This static method should be implemented by targets
- /// that provide JIT capabilities to indicate how suitable they are for
- /// execution on the current host. If a value of 0 is returned, the target
- /// will not be used unless an explicit -march option is used.
- static unsigned getJITMatchQuality() { return 0; }
+ const Target &getTarget() const { return TheTarget; }
// Interfaces to the major aspects of target machine information:
// -- Instruction opcode and operand information
/// is not supported.
///
virtual FileModel::Model addPassesToEmitFile(PassManagerBase &,
- raw_ostream &,
+ formatted_raw_ostream &,
CodeGenFileType,
CodeGenOpt::Level) {
return FileModel::None;
return true;
}
+ /// addPassesToEmitFileFinish - If the passes to emit the specified file had
+ /// to be split up (e.g., to add an object writer pass), this method can be
+ /// used to finish up adding passes to emit the file, if necessary.
+ ///
+ virtual bool addPassesToEmitFileFinish(PassManagerBase &,
+ ObjectCodeEmitter *,
+ CodeGenOpt::Level) {
+ return true;
+ }
+
/// addPassesToEmitMachineCode - Add passes to the specified pass manager to
/// get machine code emitted. This uses a MachineCodeEmitter object to handle
/// actually outputting the machine code and resolving things like the address
/// require having the entire module at once. This is not recommended, do not
/// use this.
virtual bool WantsWholeFile() const { return false; }
- virtual bool addPassesToEmitWholeFile(PassManager &, raw_ostream &,
+ virtual bool addPassesToEmitWholeFile(PassManager &, formatted_raw_ostream &,
CodeGenFileType,
CodeGenOpt::Level) {
return true;
///
class LLVMTargetMachine : public TargetMachine {
protected: // Can only create subclasses.
- LLVMTargetMachine() { }
+ LLVMTargetMachine(const Target &T) : TargetMachine(T) { }
/// addCommonCodeGenPasses - Add standard LLVM codegen passes used for
/// both emitting to assembly files or machine code output.
/// target-specific passes in standard locations.
///
virtual FileModel::Model addPassesToEmitFile(PassManagerBase &PM,
- raw_ostream &Out,
+ formatted_raw_ostream &Out,
CodeGenFileType FileType,
CodeGenOpt::Level);
/// used to finish up adding passes to emit the file, if necessary.
///
virtual bool addPassesToEmitFileFinish(PassManagerBase &PM,
- JITCodeEmitter *MCE,
+ JITCodeEmitter *JCE,
+ CodeGenOpt::Level);
+
+ /// addPassesToEmitFileFinish - If the passes to emit the specified file had
+ /// to be split up (e.g., to add an object writer pass), this method can be
+ /// used to finish up adding passes to emit the file, if necessary.
+ ///
+ virtual bool addPassesToEmitFileFinish(PassManagerBase &PM,
+ ObjectCodeEmitter *OCE,
CodeGenOpt::Level);
/// addPassesToEmitMachineCode - Add passes to the specified pass manager to
}
- /// addAssemblyEmitter - This pass should be overridden by the target to add
- /// the asmprinter, if asm emission is supported. If this is not supported,
- /// 'true' should be returned.
- virtual bool addAssemblyEmitter(PassManagerBase &, CodeGenOpt::Level,
- bool /* VerboseAsmDefault */, raw_ostream &) {
- return true;
- }
-
/// addCodeEmitter - This pass should be overridden by the target to add a
/// code emitter, if supported. If this is not supported, 'true' should be
- /// returned. If DumpAsm is true, the generated assembly is printed to cerr.
+ /// returned.
virtual bool addCodeEmitter(PassManagerBase &, CodeGenOpt::Level,
- bool /*DumpAsm*/, MachineCodeEmitter &) {
+ MachineCodeEmitter &) {
return true;
}
/// addCodeEmitter - This pass should be overridden by the target to add a
/// code emitter, if supported. If this is not supported, 'true' should be
- /// returned. If DumpAsm is true, the generated assembly is printed to cerr.
+ /// returned.
virtual bool addCodeEmitter(PassManagerBase &, CodeGenOpt::Level,
- bool /*DumpAsm*/, JITCodeEmitter &) {
+ JITCodeEmitter &) {
+ return true;
+ }
+
+ /// addSimpleCodeEmitter - This pass should be overridden by the target to add
+ /// a code emitter (without setting flags), if supported. If this is not
+ /// supported, 'true' should be returned.
+ virtual bool addSimpleCodeEmitter(PassManagerBase &, CodeGenOpt::Level,
+ MachineCodeEmitter &) {
return true;
}
/// addSimpleCodeEmitter - This pass should be overridden by the target to add
/// a code emitter (without setting flags), if supported. If this is not
- /// supported, 'true' should be returned. If DumpAsm is true, the generated
- /// assembly is printed to cerr.
+ /// supported, 'true' should be returned.
virtual bool addSimpleCodeEmitter(PassManagerBase &, CodeGenOpt::Level,
- bool /*DumpAsm*/, MachineCodeEmitter &) {
+ JITCodeEmitter &) {
return true;
}
/// addSimpleCodeEmitter - This pass should be overridden by the target to add
/// a code emitter (without setting flags), if supported. If this is not
- /// supported, 'true' should be returned. If DumpAsm is true, the generated
- /// assembly is printed to cerr.
+ /// supported, 'true' should be returned.
virtual bool addSimpleCodeEmitter(PassManagerBase &, CodeGenOpt::Level,
- bool /*DumpAsm*/, JITCodeEmitter &) {
+ ObjectCodeEmitter &) {
return true;
}
/// getEnableTailMergeDefault - the default setting for -enable-tail-merge
/// on this target. User flag overrides.
virtual bool getEnableTailMergeDefault() const { return true; }
+
+ /// addAssemblyEmitter - Helper function which creates a target specific
+ /// assembly printer, if available.
+ ///
+ /// \return Returns 'false' on success.
+ bool addAssemblyEmitter(PassManagerBase &, CodeGenOpt::Level,
+ bool /* VerboseAsmDefault */,
+ formatted_raw_ostream &);
};
} // End llvm namespace
projects / oota-llvm.git / blobdiff