class TargetLowering;
class TargetFrameInfo;
class MachineCodeEmitter;
+class JITCodeEmitter;
+class ObjectCodeEmitter;
class TargetRegisterInfo;
class Module;
class PassManagerBase;
class Pass;
class TargetMachOWriterInfo;
class TargetELFWriterInfo;
-class raw_ostream;
+class formatted_raw_ostream;
// Relocation model types.
namespace Reloc {
};
}
+// Code generation optimization level.
+namespace CodeGenOpt {
+ enum Level {
+ Default,
+ None,
+ Aggressive
+ };
+}
+
+
+// Possible float ABI settings. Used with FloatABIType in TargetOptions.h.
+namespace FloatABI {
+ enum ABIType {
+ Default, // Target-specific (either soft of hard depending on triple, etc).
+ Soft, // Soft float.
+ Hard // Hard float.
+ };
+}
+
//===----------------------------------------------------------------------===//
///
/// TargetMachine - Primary interface to the complete machine description for
TargetMachine(const TargetMachine &); // DO NOT IMPLEMENT
void operator=(const TargetMachine &); // DO NOT IMPLEMENT
protected: // Can only create subclasses.
- TargetMachine() : AsmInfo(0) { }
+ TargetMachine();
/// getSubtargetImpl - virtual method implemented by subclasses that returns
/// a reference to that target's TargetSubtarget-derived member variable.
/// is not supported.
///
virtual FileModel::Model addPassesToEmitFile(PassManagerBase &,
- raw_ostream &,
+ formatted_raw_ostream &,
CodeGenFileType,
- bool /*Fast*/) {
+ CodeGenOpt::Level) {
return FileModel::None;
}
/// used to finish up adding passes to emit the file, if necessary.
///
virtual bool addPassesToEmitFileFinish(PassManagerBase &,
- MachineCodeEmitter *, bool /*Fast*/) {
+ MachineCodeEmitter *,
+ CodeGenOpt::Level) {
+ 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 &,
+ JITCodeEmitter *,
+ CodeGenOpt::Level) {
+ 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;
}
///
virtual bool addPassesToEmitMachineCode(PassManagerBase &,
MachineCodeEmitter &,
- bool /*Fast*/) {
+ 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
+ /// of functions. This method returns true if machine code emission is
+ /// not supported.
+ ///
+ virtual bool addPassesToEmitMachineCode(PassManagerBase &,
+ JITCodeEmitter &,
+ CodeGenOpt::Level) {
return true;
}
/// 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 &,
- CodeGenFileType, bool /*Fast*/) {
+ virtual bool addPassesToEmitWholeFile(PassManager &, formatted_raw_ostream &,
+ CodeGenFileType,
+ CodeGenOpt::Level) {
return true;
}
};
/// addCommonCodeGenPasses - Add standard LLVM codegen passes used for
/// both emitting to assembly files or machine code output.
///
- bool addCommonCodeGenPasses(PassManagerBase &, bool /*Fast*/);
+ bool addCommonCodeGenPasses(PassManagerBase &, CodeGenOpt::Level);
public:
/// addPassesToEmitFile - Add passes to the specified pass manager to get the
/// specified file emitted. Typically this will involve several steps of code
- /// generation. If Fast is set to true, the code generator should emit code
- /// as fast as possible, though the generated code may be less efficient.
- /// This method should return FileModel::Error if emission of this file type
- /// is not supported.
+ /// generation. If OptLevel is None, the code generator should emit code as fast
+ /// as possible, though the generated code may be less efficient. This method
+ /// should return FileModel::Error if emission of this file type is not
+ /// supported.
///
/// The default implementation of this method adds components from the
/// LLVM retargetable code generator, invoking the methods below to get
/// target-specific passes in standard locations.
///
virtual FileModel::Model addPassesToEmitFile(PassManagerBase &PM,
- raw_ostream &Out,
+ formatted_raw_ostream &Out,
CodeGenFileType FileType,
- bool Fast);
+ 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,
- MachineCodeEmitter *MCE, bool Fast);
+ MachineCodeEmitter *MCE,
+ 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,
+ 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
+ /// get machine code emitted. This uses a MachineCodeEmitter object to handle
+ /// actually outputting the machine code and resolving things like the address
+ /// of functions. This method returns true if machine code emission is
+ /// not supported.
+ ///
+ virtual bool addPassesToEmitMachineCode(PassManagerBase &PM,
+ MachineCodeEmitter &MCE,
+ CodeGenOpt::Level);
+
/// 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
/// not supported.
///
virtual bool addPassesToEmitMachineCode(PassManagerBase &PM,
- MachineCodeEmitter &MCE, bool Fast);
+ JITCodeEmitter &MCE,
+ CodeGenOpt::Level);
/// Target-Independent Code Generator Pass Configuration Options.
/// addInstSelector - This method should add any "last minute" LLVM->LLVM
/// passes, then install an instruction selector pass, which converts from
/// LLVM code to machine instructions.
- virtual bool addInstSelector(PassManagerBase &, bool /*Fast*/) {
+ virtual bool addInstSelector(PassManagerBase &, CodeGenOpt::Level) {
return true;
}
/// addPreRegAllocPasses - This method may be implemented by targets that want
/// to run passes immediately before register allocation. This should return
/// true if -print-machineinstrs should print after these passes.
- virtual bool addPreRegAlloc(PassManagerBase &, bool /*Fast*/) {
+ virtual bool addPreRegAlloc(PassManagerBase &, CodeGenOpt::Level) {
return false;
}
/// want to run passes after register allocation but before prolog-epilog
/// insertion. This should return true if -print-machineinstrs should print
/// after these passes.
- virtual bool addPostRegAlloc(PassManagerBase &, bool /*Fast*/) {
+ virtual bool addPostRegAlloc(PassManagerBase &, CodeGenOpt::Level) {
return false;
}
/// addPreEmitPass - This pass may be implemented by targets that want to run
/// passes immediately before machine code is emitted. This should return
/// true if -print-machineinstrs should print out the code after the passes.
- virtual bool addPreEmitPass(PassManagerBase &, bool /*Fast*/) {
+ virtual bool addPreEmitPass(PassManagerBase &, CodeGenOpt::Level) {
return false;
}
/// 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 &, bool /*Fast*/,
- bool /* VerboseAsmDefault */, raw_ostream &) {
+ virtual bool addAssemblyEmitter(PassManagerBase &, CodeGenOpt::Level,
+ bool /* VerboseAsmDefault */,
+ formatted_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.
- virtual bool addCodeEmitter(PassManagerBase &, bool /*Fast*/,
+ virtual bool addCodeEmitter(PassManagerBase &, CodeGenOpt::Level,
bool /*DumpAsm*/, 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.
+ virtual bool addCodeEmitter(PassManagerBase &, CodeGenOpt::Level,
+ bool /*DumpAsm*/, 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.
- virtual bool addSimpleCodeEmitter(PassManagerBase &, bool /*Fast*/,
+ virtual bool addSimpleCodeEmitter(PassManagerBase &, CodeGenOpt::Level,
bool /*DumpAsm*/, 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.
+ virtual bool addSimpleCodeEmitter(PassManagerBase &, CodeGenOpt::Level,
+ bool /*DumpAsm*/, 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.
+ virtual bool addSimpleCodeEmitter(PassManagerBase &, CodeGenOpt::Level,
+ bool /*DumpAsm*/, ObjectCodeEmitter &) {
+ return true;
+ }
+
/// getEnableTailMergeDefault - the default setting for -enable-tail-merge
/// on this target. User flag overrides.
virtual bool getEnableTailMergeDefault() const { return true; }
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