LLVMTargetMachine.cpp revision 1b747ad8a0694b86e8d98a8b9a05ddfe74ec0cd3
147877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner//===-- LLVMTargetMachine.cpp - Implement the LLVMTargetMachine class -----===// 247877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner// 347877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner// The LLVM Compiler Infrastructure 447877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 747877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner// 847877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner//===----------------------------------------------------------------------===// 947877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner// 1047877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner// This file implements the LLVMTargetMachine class. 1147877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner// 1247877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner//===----------------------------------------------------------------------===// 1347877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner 1447877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner#include "llvm/Target/TargetMachine.h" 1547877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner#include "llvm/PassManager.h" 1647877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner#include "llvm/Pass.h" 1731442f9dc5512b6a29cdb332b12ae09a1c9e8176Chris Lattner#include "llvm/Assembly/PrintModulePass.h" 180f54dcbf07c69e41ecaa6b4fbf0d94956d8e9ff5Devang Patel#include "llvm/Analysis/LoopPass.h" 1947877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner#include "llvm/CodeGen/Passes.h" 205a29c9eed157af51a8d338b5a225b146881819e8Gordon Henriksen#include "llvm/CodeGen/GCStrategy.h" 21ad2afc2a421a0e41603d5eee412d4d8c77e9bc1cDan Gohman#include "llvm/CodeGen/MachineFunctionAnalysis.h" 2247877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner#include "llvm/Target/TargetOptions.h" 231532f3ddd77c362dd5f613af06b4de636e3c5b0eDale Johannesen#include "llvm/Target/TargetAsmInfo.h" 246d823cd39d8d16571682cd1bb4cbf2ecb4815d8eDaniel Dunbar#include "llvm/Target/TargetRegistry.h" 2547877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner#include "llvm/Transforms/Scalar.h" 2631442f9dc5512b6a29cdb332b12ae09a1c9e8176Chris Lattner#include "llvm/Support/CommandLine.h" 2771847813bc419f7a0667468136a07429c6d9f164David Greene#include "llvm/Support/FormattedStream.h" 2847877050e7ea02c3514497aba54eef1d4cee8452Chris Lattnerusing namespace llvm; 2947877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner 302c4bf119be8aa05cdc3dc88c57006353f07f0d2cDan Gohmannamespace llvm { 312c4bf119be8aa05cdc3dc88c57006353f07f0d2cDan Gohman bool EnableFastISel; 322c4bf119be8aa05cdc3dc88c57006353f07f0d2cDan Gohman} 332c4bf119be8aa05cdc3dc88c57006353f07f0d2cDan Gohman 3485ef2546303fabe32de3f2519a978fa2a7fd5958Chris Lattnerstatic cl::opt<bool> PrintLSR("print-lsr-output", cl::Hidden, 3585ef2546303fabe32de3f2519a978fa2a7fd5958Chris Lattner cl::desc("Print LLVM IR produced by the loop-reduce pass")); 3685ef2546303fabe32de3f2519a978fa2a7fd5958Chris Lattnerstatic cl::opt<bool> PrintISelInput("print-isel-input", cl::Hidden, 3785ef2546303fabe32de3f2519a978fa2a7fd5958Chris Lattner cl::desc("Print LLVM IR input to isel pass")); 388bd6035750f1b290832a3b1c90766d9b45ed8d6bEvan Chengstatic cl::opt<bool> PrintEmittedAsm("print-emitted-asm", cl::Hidden, 398bd6035750f1b290832a3b1c90766d9b45ed8d6bEvan Cheng cl::desc("Dump emitter generated instructions as assembly")); 4093f96d00bf10299246ea726956ce84dcb4b9a59eGordon Henriksenstatic cl::opt<bool> PrintGCInfo("print-gc", cl::Hidden, 4193f96d00bf10299246ea726956ce84dcb4b9a59eGordon Henriksen cl::desc("Dump garbage collector data")); 4248872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesenstatic cl::opt<bool> VerifyMachineCode("verify-machineinstrs", cl::Hidden, 4348872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen cl::desc("Verify generated machine code"), 4448872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen cl::init(getenv("LLVM_VERIFY_MACHINEINSTRS")!=NULL)); 4585ef2546303fabe32de3f2519a978fa2a7fd5958Chris Lattner 46459525df1e003597077197b5f802bd5d9cd7d94cChris Lattner// When this works it will be on by default. 47459525df1e003597077197b5f802bd5d9cd7d94cChris Lattnerstatic cl::opt<bool> 48459525df1e003597077197b5f802bd5d9cd7d94cChris LattnerDisablePostRAScheduler("disable-post-RA-scheduler", 49459525df1e003597077197b5f802bd5d9cd7d94cChris Lattner cl::desc("Disable scheduling after register allocation"), 50459525df1e003597077197b5f802bd5d9cd7d94cChris Lattner cl::init(true)); 51459525df1e003597077197b5f802bd5d9cd7d94cChris Lattner 52dc756858f92a397ed30362ba8251fec56479735fDan Gohman// Enable or disable FastISel. Both options are needed, because 53dc756858f92a397ed30362ba8251fec56479735fDan Gohman// FastISel is enabled by default with -fast, and we wish to be 54dc756858f92a397ed30362ba8251fec56479735fDan Gohman// able to enable or disable fast-isel independently from -fast. 55eb0d6abee36c274cf081948795f4675d8f33fc6fDan Gohmanstatic cl::opt<cl::boolOrDefault> 56dc756858f92a397ed30362ba8251fec56479735fDan GohmanEnableFastISelOption("fast-isel", cl::Hidden, 57dc756858f92a397ed30362ba8251fec56479735fDan Gohman cl::desc("Enable the experimental \"fast\" instruction selector")); 582c4bf119be8aa05cdc3dc88c57006353f07f0d2cDan Gohman 5904523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill WendlingFileModel::Model 60bfae83139dcb4fffd50b939e1b1224b0126f04d4Dan GohmanLLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM, 6171847813bc419f7a0667468136a07429c6d9f164David Greene formatted_raw_ostream &Out, 6204523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling CodeGenFileType FileType, 6398a366d547772010e94609e4584489b3e5ce0043Bill Wendling CodeGenOpt::Level OptLevel) { 6402dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman // Add common CodeGen passes. 65be8cc2a3dedeb7685f07e68cdc4b9502eb97eb2bBill Wendling if (addCommonCodeGenPasses(PM, OptLevel)) 6604523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling return FileModel::Error; 6704523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling 689d4209fb82cab74bae76511e3f21ef1c24ec948aJim Laskey // Fold redundant debug labels. 699d4209fb82cab74bae76511e3f21ef1c24ec948aJim Laskey PM.add(createDebugLabelFoldingPass()); 7002dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman 7102dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman if (PrintMachineCode) 7204523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling PM.add(createMachineFunctionPrinterPass(cerr)); 7304523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling 74be8cc2a3dedeb7685f07e68cdc4b9502eb97eb2bBill Wendling if (addPreEmitPass(PM, OptLevel) && PrintMachineCode) 7504523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling PM.add(createMachineFunctionPrinterPass(cerr)); 7604523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling 7798a366d547772010e94609e4584489b3e5ce0043Bill Wendling if (OptLevel != CodeGenOpt::None) 78bbf1db72133e9cf986e4da6260736335533067dbEvan Cheng PM.add(createCodePlacementOptPass()); 79d703ed6aed98c8156829399efbafb13a3cca0b69Evan Cheng 8047877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner switch (FileType) { 8104523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling default: 8204523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling break; 8304523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling case TargetMachine::AssemblyFile: 84be8cc2a3dedeb7685f07e68cdc4b9502eb97eb2bBill Wendling if (addAssemblyEmitter(PM, OptLevel, getAsmVerbosityDefault(), Out)) 8504523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling return FileModel::Error; 8604523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling return FileModel::AsmFile; 8704523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling case TargetMachine::ObjectFile: 8804523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling if (getMachOWriterInfo()) 8904523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling return FileModel::MachOFile; 9004523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling else if (getELFWriterInfo()) 9104523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling return FileModel::ElfFile; 9247877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner } 9304523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling 9404523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling return FileModel::Error; 9504523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling} 9602dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman 975d77cad60bd82dfa2d00f78e26443d667922efbfDaniel Dunbarbool LLVMTargetMachine::addAssemblyEmitter(PassManagerBase &PM, 985d77cad60bd82dfa2d00f78e26443d667922efbfDaniel Dunbar CodeGenOpt::Level OptLevel, 995d77cad60bd82dfa2d00f78e26443d667922efbfDaniel Dunbar bool Verbose, 1005d77cad60bd82dfa2d00f78e26443d667922efbfDaniel Dunbar formatted_raw_ostream &Out) { 1015d77cad60bd82dfa2d00f78e26443d667922efbfDaniel Dunbar FunctionPass *Printer = getTarget().createAsmPrinter(Out, *this, Verbose); 1025d77cad60bd82dfa2d00f78e26443d667922efbfDaniel Dunbar if (!Printer) 10336129dba4f4134bc9cc83e3ea830e215754b1bafDaniel Dunbar return true; 10436129dba4f4134bc9cc83e3ea830e215754b1bafDaniel Dunbar 1055d77cad60bd82dfa2d00f78e26443d667922efbfDaniel Dunbar PM.add(Printer); 1065d77cad60bd82dfa2d00f78e26443d667922efbfDaniel Dunbar return false; 1075d77cad60bd82dfa2d00f78e26443d667922efbfDaniel Dunbar} 1085d77cad60bd82dfa2d00f78e26443d667922efbfDaniel Dunbar 10904523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling/// addPassesToEmitFileFinish - If the passes to emit the specified file had to 11004523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling/// be split up (e.g., to add an object writer pass), this method can be used to 11104523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling/// finish up adding passes to emit the file, if necessary. 112bfae83139dcb4fffd50b939e1b1224b0126f04d4Dan Gohmanbool LLVMTargetMachine::addPassesToEmitFileFinish(PassManagerBase &PM, 11304523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling MachineCodeEmitter *MCE, 11498a366d547772010e94609e4584489b3e5ce0043Bill Wendling CodeGenOpt::Level OptLevel) { 11504523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling if (MCE) 116cfe9a605eea542d91e3db74289b69b7e317d90a6Daniel Dunbar addSimpleCodeEmitter(PM, OptLevel, *MCE); 117cfe9a605eea542d91e3db74289b69b7e317d90a6Daniel Dunbar if (PrintEmittedAsm) 118cfe9a605eea542d91e3db74289b69b7e317d90a6Daniel Dunbar addAssemblyEmitter(PM, OptLevel, true, ferrs()); 11902dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman 1205eca075b74d62c621b160aa216b4cd50829a2cc7Gordon Henriksen PM.add(createGCInfoDeleter()); 12104523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling 12247877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner return false; // success! 12347877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner} 12447877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner 125a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes/// addPassesToEmitFileFinish - If the passes to emit the specified file had to 126a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes/// be split up (e.g., to add an object writer pass), this method can be used to 127a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes/// finish up adding passes to emit the file, if necessary. 128a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopesbool LLVMTargetMachine::addPassesToEmitFileFinish(PassManagerBase &PM, 129a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes JITCodeEmitter *JCE, 130a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes CodeGenOpt::Level OptLevel) { 131a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes if (JCE) 132cfe9a605eea542d91e3db74289b69b7e317d90a6Daniel Dunbar addSimpleCodeEmitter(PM, OptLevel, *JCE); 133cfe9a605eea542d91e3db74289b69b7e317d90a6Daniel Dunbar if (PrintEmittedAsm) 134cfe9a605eea542d91e3db74289b69b7e317d90a6Daniel Dunbar addAssemblyEmitter(PM, OptLevel, true, ferrs()); 135a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes 136a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes PM.add(createGCInfoDeleter()); 137a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes 138a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes return false; // success! 139a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes} 140a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes 141ac57e6e498abccb117e0d61c2fa0f733845e50cbBruno Cardoso Lopes/// addPassesToEmitFileFinish - If the passes to emit the specified file had to 142ac57e6e498abccb117e0d61c2fa0f733845e50cbBruno Cardoso Lopes/// be split up (e.g., to add an object writer pass), this method can be used to 143ac57e6e498abccb117e0d61c2fa0f733845e50cbBruno Cardoso Lopes/// finish up adding passes to emit the file, if necessary. 144ac57e6e498abccb117e0d61c2fa0f733845e50cbBruno Cardoso Lopesbool LLVMTargetMachine::addPassesToEmitFileFinish(PassManagerBase &PM, 145ac57e6e498abccb117e0d61c2fa0f733845e50cbBruno Cardoso Lopes ObjectCodeEmitter *OCE, 146ac57e6e498abccb117e0d61c2fa0f733845e50cbBruno Cardoso Lopes CodeGenOpt::Level OptLevel) { 147ac57e6e498abccb117e0d61c2fa0f733845e50cbBruno Cardoso Lopes if (OCE) 148cfe9a605eea542d91e3db74289b69b7e317d90a6Daniel Dunbar addSimpleCodeEmitter(PM, OptLevel, *OCE); 149cfe9a605eea542d91e3db74289b69b7e317d90a6Daniel Dunbar if (PrintEmittedAsm) 150cfe9a605eea542d91e3db74289b69b7e317d90a6Daniel Dunbar addAssemblyEmitter(PM, OptLevel, true, ferrs()); 151ac57e6e498abccb117e0d61c2fa0f733845e50cbBruno Cardoso Lopes 152ac57e6e498abccb117e0d61c2fa0f733845e50cbBruno Cardoso Lopes PM.add(createGCInfoDeleter()); 153ac57e6e498abccb117e0d61c2fa0f733845e50cbBruno Cardoso Lopes 154ac57e6e498abccb117e0d61c2fa0f733845e50cbBruno Cardoso Lopes return false; // success! 155ac57e6e498abccb117e0d61c2fa0f733845e50cbBruno Cardoso Lopes} 156ac57e6e498abccb117e0d61c2fa0f733845e50cbBruno Cardoso Lopes 15747877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner/// addPassesToEmitMachineCode - Add passes to the specified pass manager to 15847877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner/// get machine code emitted. This uses a MachineCodeEmitter object to handle 15947877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner/// actually outputting the machine code and resolving things like the address 16047877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner/// of functions. This method should returns true if machine code emission is 16147877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner/// not supported. 16247877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner/// 163bfae83139dcb4fffd50b939e1b1224b0126f04d4Dan Gohmanbool LLVMTargetMachine::addPassesToEmitMachineCode(PassManagerBase &PM, 16447877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner MachineCodeEmitter &MCE, 16598a366d547772010e94609e4584489b3e5ce0043Bill Wendling CodeGenOpt::Level OptLevel) { 16602dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman // Add common CodeGen passes. 167be8cc2a3dedeb7685f07e68cdc4b9502eb97eb2bBill Wendling if (addCommonCodeGenPasses(PM, OptLevel)) 16802dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman return true; 16902dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman 170be8cc2a3dedeb7685f07e68cdc4b9502eb97eb2bBill Wendling if (addPreEmitPass(PM, OptLevel) && PrintMachineCode) 17102dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman PM.add(createMachineFunctionPrinterPass(cerr)); 17202dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman 173cfe9a605eea542d91e3db74289b69b7e317d90a6Daniel Dunbar addCodeEmitter(PM, OptLevel, MCE); 174cfe9a605eea542d91e3db74289b69b7e317d90a6Daniel Dunbar if (PrintEmittedAsm) 175cfe9a605eea542d91e3db74289b69b7e317d90a6Daniel Dunbar addAssemblyEmitter(PM, OptLevel, true, ferrs()); 17602dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman 17702dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman PM.add(createGCInfoDeleter()); 17802dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman 17902dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman return false; // success! 18002dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman} 18102dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman 182a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes/// addPassesToEmitMachineCode - Add passes to the specified pass manager to 183a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes/// get machine code emitted. This uses a MachineCodeEmitter object to handle 184a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes/// actually outputting the machine code and resolving things like the address 185a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes/// of functions. This method should returns true if machine code emission is 186a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes/// not supported. 187a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes/// 188a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopesbool LLVMTargetMachine::addPassesToEmitMachineCode(PassManagerBase &PM, 189a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes JITCodeEmitter &JCE, 190a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes CodeGenOpt::Level OptLevel) { 191a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes // Add common CodeGen passes. 192a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes if (addCommonCodeGenPasses(PM, OptLevel)) 193a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes return true; 194a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes 195a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes if (addPreEmitPass(PM, OptLevel) && PrintMachineCode) 196a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes PM.add(createMachineFunctionPrinterPass(cerr)); 197a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes 198cfe9a605eea542d91e3db74289b69b7e317d90a6Daniel Dunbar addCodeEmitter(PM, OptLevel, JCE); 199cfe9a605eea542d91e3db74289b69b7e317d90a6Daniel Dunbar if (PrintEmittedAsm) 200cfe9a605eea542d91e3db74289b69b7e317d90a6Daniel Dunbar addAssemblyEmitter(PM, OptLevel, true, ferrs()); 201a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes 202a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes PM.add(createGCInfoDeleter()); 203a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes 204a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes return false; // success! 205a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes} 206a3f99f90338d89354384ca25f53ca4450a1a9d18Bruno Cardoso Lopes 20748872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesenstatic void printAndVerify(PassManagerBase &PM, 20848872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen bool allowDoubleDefs = false) { 20948872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen if (PrintMachineCode) 21048872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen PM.add(createMachineFunctionPrinterPass(cerr)); 21148872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen 21248872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen if (VerifyMachineCode) 21348872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen PM.add(createMachineVerifierPass(allowDoubleDefs)); 21448872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen} 21548872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen 21698a366d547772010e94609e4584489b3e5ce0043Bill Wendling/// addCommonCodeGenPasses - Add standard LLVM codegen passes used for both 21798a366d547772010e94609e4584489b3e5ce0043Bill Wendling/// emitting to assembly files or machine code output. 21802dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman/// 219be8cc2a3dedeb7685f07e68cdc4b9502eb97eb2bBill Wendlingbool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM, 22098a366d547772010e94609e4584489b3e5ce0043Bill Wendling CodeGenOpt::Level OptLevel) { 22147877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner // Standard LLVM-Level Passes. 22202dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman 22347877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner // Run loop strength reduction before anything else. 22498a366d547772010e94609e4584489b3e5ce0043Bill Wendling if (OptLevel != CodeGenOpt::None) { 225c8d288f8fa9e46199a29e1954550c980f184bd1cChris Lattner PM.add(createLoopStrengthReducePass(getTargetLowering())); 226c8d288f8fa9e46199a29e1954550c980f184bd1cChris Lattner if (PrintLSR) 2273b0da26e202cbbeb22508231f4278bda8e995391Daniel Dunbar PM.add(createPrintFunctionPass("\n\n*** Code after LSR ***\n", &errs())); 228c8d288f8fa9e46199a29e1954550c980f184bd1cChris Lattner } 22902dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman 230b0f1e1780c736c62fb99e5824825d2a60a53b53bDuncan Sands // Turn exception handling constructs into something the code generators can 231b0f1e1780c736c62fb99e5824825d2a60a53b53bDuncan Sands // handle. 2321b747ad8a0694b86e8d98a8b9a05ddfe74ec0cd3Jim Grosbach switch (getTargetAsmInfo()->getExceptionHandlingType()) 2331b747ad8a0694b86e8d98a8b9a05ddfe74ec0cd3Jim Grosbach { 2341b747ad8a0694b86e8d98a8b9a05ddfe74ec0cd3Jim Grosbach // SjLj piggy-backs on dwarf for this bit 2351b747ad8a0694b86e8d98a8b9a05ddfe74ec0cd3Jim Grosbach case ExceptionHandling::SjLj: 2361b747ad8a0694b86e8d98a8b9a05ddfe74ec0cd3Jim Grosbach case ExceptionHandling::Dwarf: 237b0f1e1780c736c62fb99e5824825d2a60a53b53bDuncan Sands PM.add(createDwarfEHPass(getTargetLowering(), OptLevel==CodeGenOpt::None)); 2381b747ad8a0694b86e8d98a8b9a05ddfe74ec0cd3Jim Grosbach break; 2391b747ad8a0694b86e8d98a8b9a05ddfe74ec0cd3Jim Grosbach case ExceptionHandling::None: 2401b747ad8a0694b86e8d98a8b9a05ddfe74ec0cd3Jim Grosbach PM.add(createLowerInvokePass(getTargetLowering())); 2411b747ad8a0694b86e8d98a8b9a05ddfe74ec0cd3Jim Grosbach break; 2421b747ad8a0694b86e8d98a8b9a05ddfe74ec0cd3Jim Grosbach } 243b0f1e1780c736c62fb99e5824825d2a60a53b53bDuncan Sands 244b0f1e1780c736c62fb99e5824825d2a60a53b53bDuncan Sands PM.add(createGCLoweringPass()); 24502dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman 24647877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner // Make sure that no unreachable blocks are instruction selected. 24747877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner PM.add(createUnreachableBlockEliminationPass()); 24804523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling 24998a366d547772010e94609e4584489b3e5ce0043Bill Wendling if (OptLevel != CodeGenOpt::None) 250c8d288f8fa9e46199a29e1954550c980f184bd1cChris Lattner PM.add(createCodeGenPreparePass(getTargetLowering())); 251c8d288f8fa9e46199a29e1954550c980f184bd1cChris Lattner 252e9e6bdf27fca46dc9eca2ebdf73e03747d1859abBill Wendling PM.add(createStackProtectorPass(getTargetLowering())); 2532b58ce5ab4e22e796303d68fb246d4031cb5d4caBill Wendling 254c8d288f8fa9e46199a29e1954550c980f184bd1cChris Lattner if (PrintISelInput) 255f4db3a51c7d806f7dcef5d9625e7cdf7f122dca9Daniel Dunbar PM.add(createPrintFunctionPass("\n\n" 256f4db3a51c7d806f7dcef5d9625e7cdf7f122dca9Daniel Dunbar "*** Final LLVM Code input to ISel ***\n", 2573b0da26e202cbbeb22508231f4278bda8e995391Daniel Dunbar &errs())); 258c8d288f8fa9e46199a29e1954550c980f184bd1cChris Lattner 25902dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman // Standard Lower-Level Passes. 26002dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman 261ad2afc2a421a0e41603d5eee412d4d8c77e9bc1cDan Gohman // Set up a MachineFunction for the rest of CodeGen to work on. 262ad2afc2a421a0e41603d5eee412d4d8c77e9bc1cDan Gohman PM.add(new MachineFunctionAnalysis(*this, OptLevel)); 263ad2afc2a421a0e41603d5eee412d4d8c77e9bc1cDan Gohman 264dc756858f92a397ed30362ba8251fec56479735fDan Gohman // Enable FastISel with -fast, but allow that to be overridden. 265eb0d6abee36c274cf081948795f4675d8f33fc6fDan Gohman if (EnableFastISelOption == cl::BOU_TRUE || 26698a366d547772010e94609e4584489b3e5ce0043Bill Wendling (OptLevel == CodeGenOpt::None && EnableFastISelOption != cl::BOU_FALSE)) 267dc756858f92a397ed30362ba8251fec56479735fDan Gohman EnableFastISel = true; 268dc756858f92a397ed30362ba8251fec56479735fDan Gohman 26947877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner // Ask the target for an isel. 270be8cc2a3dedeb7685f07e68cdc4b9502eb97eb2bBill Wendling if (addInstSelector(PM, OptLevel)) 27147877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner return true; 27204523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling 27347877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner // Print the instruction selected machine code... 27448872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen printAndVerify(PM, /* allowDoubleDefs= */ true); 2750f940c95d4506f8d04fa2aeda8a79cadb3105fe3Bill Wendling 27698a366d547772010e94609e4584489b3e5ce0043Bill Wendling if (OptLevel != CodeGenOpt::None) { 277cc8f603f531c906782e4966107ae29667eb6632cBill Wendling PM.add(createMachineLICMPass()); 2783c42f1211874665e8ea6eea55a45024b557afa61Chris Lattner PM.add(createMachineSinkingPass()); 2798799dbe5b7be2e959047caf88ce97a04a3526856Evan Cheng printAndVerify(PM, /* allowDoubleDefs= */ true); 2808f0d99e463a2dcb5a40d14f0481a0e322bcf79e4Evan Cheng } 2810f940c95d4506f8d04fa2aeda8a79cadb3105fe3Bill Wendling 282b013f5094c3bdb36472da996d63d5c0f75b6d4d3Anton Korobeynikov // Run pre-ra passes. 28348872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen if (addPreRegAlloc(PM, OptLevel)) 28448872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen printAndVerify(PM); 285b013f5094c3bdb36472da996d63d5c0f75b6d4d3Anton Korobeynikov 2863f32d65912b4da23793dab618d981be2ce11c331Evan Cheng // Perform register allocation. 28747877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner PM.add(createRegisterAllocator()); 2883f32d65912b4da23793dab618d981be2ce11c331Evan Cheng 2893f32d65912b4da23793dab618d981be2ce11c331Evan Cheng // Perform stack slot coloring. 29098a366d547772010e94609e4584489b3e5ce0043Bill Wendling if (OptLevel != CodeGenOpt::None) 2916248fa45299a9e54aac84b3296c02c44ddec84e8Evan Cheng // FIXME: Re-enable coloring with register when it's capable of adding 2926248fa45299a9e54aac84b3296c02c44ddec84e8Evan Cheng // kill markers. 2936248fa45299a9e54aac84b3296c02c44ddec84e8Evan Cheng PM.add(createStackSlotColoringPass(false)); 2943f32d65912b4da23793dab618d981be2ce11c331Evan Cheng 29548872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen printAndVerify(PM); // Print the register-allocated code 29602dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman 2973f32d65912b4da23793dab618d981be2ce11c331Evan Cheng // Run post-ra passes. 29848872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen if (addPostRegAlloc(PM, OptLevel)) 29948872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen printAndVerify(PM); 30002dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman 301ada779fb11eb411536aa8219a176ca0ce4d58fd1Christopher Lamb PM.add(createLowerSubregsPass()); 30248872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen printAndVerify(PM); 30304523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling 30447877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner // Insert prolog/epilog code. Eliminate abstract frame index references... 30547877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner PM.add(createPrologEpilogCodeInserter()); 30648872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen printAndVerify(PM); 30702dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman 308e7e7d0d7e39d0c7c659d26b97e8081fce0fcd749Dale Johannesen // Second pass scheduler. 30998a366d547772010e94609e4584489b3e5ce0043Bill Wendling if (OptLevel != CodeGenOpt::None && !DisablePostRAScheduler) { 31072f159640382a16e036b63dcb9c0b427e6d5dc0aDale Johannesen PM.add(createPostRAScheduler()); 31148872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen printAndVerify(PM); 3125ce0973f7f4d149f986d16d1a1f79b131fd70423Dan Gohman } 3135ce0973f7f4d149f986d16d1a1f79b131fd70423Dan Gohman 31423b0d490cdf27b2cba7b497aceeb5c79b0d0c9feDan Gohman // Branch folding must be run after regalloc and prolog/epilog insertion. 31548872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen if (OptLevel != CodeGenOpt::None) { 31623b0d490cdf27b2cba7b497aceeb5c79b0d0c9feDan Gohman PM.add(createBranchFoldingPass(getEnableTailMergeDefault())); 31748872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen printAndVerify(PM); 31848872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen } 31923b0d490cdf27b2cba7b497aceeb5c79b0d0c9feDan Gohman 32093f96d00bf10299246ea726956ce84dcb4b9a59eGordon Henriksen PM.add(createGCMachineCodeAnalysisPass()); 32148872e0d84b47769be6c13ae98bf88468b59d921Jakob Stoklund Olesen printAndVerify(PM); 32202dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman 32393f96d00bf10299246ea726956ce84dcb4b9a59eGordon Henriksen if (PrintGCInfo) 3245eca075b74d62c621b160aa216b4cd50829a2cc7Gordon Henriksen PM.add(createGCInfoPrinter(*cerr)); 32504523eab6bbc5d55a6e3f3296ddd583c8ad5ebb1Bill Wendling 32602dae4ba06a05d28b24b3c1b39d54de751271c95Dan Gohman return false; 32747877050e7ea02c3514497aba54eef1d4cee8452Chris Lattner} 328