X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FTarget%2FTargetMachine.h;h=ce293d5114d64bf4a7eb047aabfc55eb2030532c;hb=4d1be777f81137bab98025d1c37c08ef0ec2f204;hp=ba688b48dec408687764db268de72771e8406f60;hpb=2e9d5f912a9841d3685ba0241abe1131943fed29;p=oota-llvm.git diff --git a/include/llvm/Target/TargetMachine.h b/include/llvm/Target/TargetMachine.h index ba688b48dec..ce293d5114d 100644 --- a/include/llvm/Target/TargetMachine.h +++ b/include/llvm/Target/TargetMachine.h @@ -28,6 +28,8 @@ class TargetJITInfo; class TargetLowering; class TargetFrameInfo; class MachineCodeEmitter; +class JITCodeEmitter; +class ObjectCodeEmitter; class TargetRegisterInfo; class Module; class PassManagerBase; @@ -35,7 +37,7 @@ class PassManager; class Pass; class TargetMachOWriterInfo; class TargetELFWriterInfo; -class raw_ostream; +class formatted_raw_ostream; // Relocation model types. namespace Reloc { @@ -68,6 +70,25 @@ namespace FileModel { }; } +// 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 @@ -78,7 +99,7 @@ class TargetMachine { 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. @@ -211,9 +232,9 @@ public: /// is not supported. /// virtual FileModel::Model addPassesToEmitFile(PassManagerBase &, - raw_ostream &, + formatted_raw_ostream &, CodeGenFileType, - unsigned /* OptLevel */) { + CodeGenOpt::Level) { return FileModel::None; } @@ -223,7 +244,27 @@ public: /// virtual bool addPassesToEmitFileFinish(PassManagerBase &, MachineCodeEmitter *, - unsigned /* OptLevel */) { + 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; } @@ -235,7 +276,19 @@ public: /// virtual bool addPassesToEmitMachineCode(PassManagerBase &, MachineCodeEmitter &, - unsigned /* OptLevel */) { + 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; } @@ -243,9 +296,9 @@ public: /// 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, - unsigned /* OptLevel */) { + CodeGenOpt::Level) { return true; } }; @@ -260,13 +313,13 @@ protected: // Can only create subclasses. /// addCommonCodeGenPasses - Add standard LLVM codegen passes used for /// both emitting to assembly files or machine code output. /// - bool addCommonCodeGenPasses(PassManagerBase &, unsigned /* OptLevel */); + 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 OptLevel is 0, the code generator should emit code as fast + /// 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. @@ -276,9 +329,9 @@ public: /// target-specific passes in standard locations. /// virtual FileModel::Model addPassesToEmitFile(PassManagerBase &PM, - raw_ostream &Out, + formatted_raw_ostream &Out, CodeGenFileType FileType, - unsigned OptLevel); + 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 @@ -286,7 +339,23 @@ public: /// virtual bool addPassesToEmitFileFinish(PassManagerBase &PM, MachineCodeEmitter *MCE, - unsigned OptLevel); + 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 @@ -296,21 +365,31 @@ public: /// virtual bool addPassesToEmitMachineCode(PassManagerBase &PM, MachineCodeEmitter &MCE, - unsigned OptLevel); + 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, + 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 &, unsigned /* OptLevel */) { + 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 &, unsigned /* OptLevel */) { + virtual bool addPreRegAlloc(PassManagerBase &, CodeGenOpt::Level) { return false; } @@ -318,14 +397,14 @@ public: /// 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 &, unsigned /* OptLevel */) { + 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 &, unsigned /* OptLevel */) { + virtual bool addPreEmitPass(PassManagerBase &, CodeGenOpt::Level) { return false; } @@ -333,28 +412,55 @@ public: /// 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 &, unsigned /* OptLevel */, - 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 &, unsigned /* OptLevel */, + 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 &, unsigned /* OptLevel */, + 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; }