ExecutionDriver.cpp revision 41396302126c24f1d5231e191852ebf2ff37fe23
14a10645c70199c8d8567fbc46312158c419720abChris Lattner//===- ExecutionDriver.cpp - Allow execution of LLVM program --------------===// 23da94aec4d429b2ba0f65fa040c33650cade196bMisha Brukman// 37c0e022c5c4be4b11e199a53f73bbdd84e34aa80John Criswell// The LLVM Compiler Infrastructure 47c0e022c5c4be4b11e199a53f73bbdd84e34aa80John Criswell// 521c62da287237d39d0d95004881ea4baae3be6daChris Lattner// This file is distributed under the University of Illinois Open Source 621c62da287237d39d0d95004881ea4baae3be6daChris Lattner// License. See LICENSE.TXT for details. 73da94aec4d429b2ba0f65fa040c33650cade196bMisha Brukman// 87c0e022c5c4be4b11e199a53f73bbdd84e34aa80John Criswell//===----------------------------------------------------------------------===// 94a10645c70199c8d8567fbc46312158c419720abChris Lattner// 104a10645c70199c8d8567fbc46312158c419720abChris Lattner// This file contains code used to execute the program utilizing one of the 118ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif// various ways of running LLVM bitcode. 124a10645c70199c8d8567fbc46312158c419720abChris Lattner// 134a10645c70199c8d8567fbc46312158c419720abChris Lattner//===----------------------------------------------------------------------===// 144a10645c70199c8d8567fbc46312158c419720abChris Lattner 154a10645c70199c8d8567fbc46312158c419720abChris Lattner#include "BugDriver.h" 16f1b20d8620b05abaa52f40ac6d21f839b265fb00Chris Lattner#include "ToolRunner.h" 17551ccae044b0ff658fe629dd67edd5ffe75d10e8Reid Spencer#include "llvm/Support/CommandLine.h" 18551ccae044b0ff658fe629dd67edd5ffe75d10e8Reid Spencer#include "llvm/Support/Debug.h" 19551ccae044b0ff658fe629dd67edd5ffe75d10e8Reid Spencer#include "llvm/Support/FileUtilities.h" 20551ccae044b0ff658fe629dd67edd5ffe75d10e8Reid Spencer#include "llvm/Support/SystemUtils.h" 2174382b7c699120fbec5cb5603c9cf4212eb37f06Chris Lattner#include "llvm/Support/raw_ostream.h" 224a10645c70199c8d8567fbc46312158c419720abChris Lattner#include <fstream> 2351ab5c8862466bbddcd5c4369779c472978ed309Reid Spencer 24d0fde30ce850b78371fd1386338350591f9ff494Brian Gaekeusing namespace llvm; 25d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 264a10645c70199c8d8567fbc46312158c419720abChris Lattnernamespace { 274a10645c70199c8d8567fbc46312158c419720abChris Lattner // OutputType - Allow the user to specify the way code should be run, to test 284a10645c70199c8d8567fbc46312158c419720abChris Lattner // for miscompilation. 294a10645c70199c8d8567fbc46312158c419720abChris Lattner // 304a10645c70199c8d8567fbc46312158c419720abChris Lattner enum OutputType { 3150010429a7c3285dab15ede68acae7231fade367Chris Lattner AutoPick, RunLLI, RunJIT, RunLLC, RunLLCIA, RunCBE, CBE_bug, LLC_Safe,Custom 324a10645c70199c8d8567fbc46312158c419720abChris Lattner }; 334148556a9c767fdf3047ae8e004a759356b893ddMisha Brukman 34a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner cl::opt<double> 35a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner AbsTolerance("abs-tolerance", cl::desc("Absolute error tolerated"), 36a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner cl::init(0.0)); 37a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner cl::opt<double> 38a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner RelTolerance("rel-tolerance", cl::desc("Relative error tolerated"), 39a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner cl::init(0.0)); 40a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner 414a10645c70199c8d8567fbc46312158c419720abChris Lattner cl::opt<OutputType> 4270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman InterpreterSel(cl::desc("Specify the \"test\" i.e. suspect back-end:"), 43b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke cl::values(clEnumValN(AutoPick, "auto", "Use best guess"), 44b687d82b029ba448b978e2c9ed424ee5d1f9f093Misha Brukman clEnumValN(RunLLI, "run-int", 45b687d82b029ba448b978e2c9ed424ee5d1f9f093Misha Brukman "Execute with the interpreter"), 465073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman clEnumValN(RunJIT, "run-jit", "Execute with JIT"), 475073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman clEnumValN(RunLLC, "run-llc", "Compile with LLC"), 4850010429a7c3285dab15ede68acae7231fade367Chris Lattner clEnumValN(RunLLCIA, "run-llc-ia", 4950010429a7c3285dab15ede68acae7231fade367Chris Lattner "Compile with LLC with integrated assembler"), 505073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman clEnumValN(RunCBE, "run-cbe", "Compile with CBE"), 51c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner clEnumValN(CBE_bug,"cbe-bug", "Find CBE bugs"), 52cd6f46e2ac4c1d64067237c0b28eccfae22bd9f4Chris Lattner clEnumValN(LLC_Safe, "llc-safe", "Use LLC for all"), 539ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov clEnumValN(Custom, "run-custom", 549ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov "Use -exec-command to define a command to execute " 559ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov "the bitcode. Useful for cross-compilation."), 564d143ee01988e1b52e106ffccbb313937ca5e886Chris Lattner clEnumValEnd), 57b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke cl::init(AutoPick)); 583c053a0a98e19f5ac8905011ad4c8238b08d6aeaChris Lattner 5970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman cl::opt<OutputType> 6070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel(cl::desc("Specify \"safe\" i.e. known-good backend:"), 6149419e28fe400509363cecf63a3a824002c1d9e0Evan Cheng cl::values(clEnumValN(AutoPick, "safe-auto", "Use best guess"), 6249419e28fe400509363cecf63a3a824002c1d9e0Evan Cheng clEnumValN(RunLLC, "safe-run-llc", "Compile with LLC"), 6349419e28fe400509363cecf63a3a824002c1d9e0Evan Cheng clEnumValN(RunCBE, "safe-run-cbe", "Compile with CBE"), 6449419e28fe400509363cecf63a3a824002c1d9e0Evan Cheng clEnumValN(Custom, "safe-run-custom", 6549419e28fe400509363cecf63a3a824002c1d9e0Evan Cheng "Use -exec-command to define a command to execute " 6649419e28fe400509363cecf63a3a824002c1d9e0Evan Cheng "the bitcode. Useful for cross-compilation."), 6749419e28fe400509363cecf63a3a824002c1d9e0Evan Cheng clEnumValEnd), 6870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman cl::init(AutoPick)); 6970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman 7070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman cl::opt<std::string> 7170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterPath("safe-path", 7249419e28fe400509363cecf63a3a824002c1d9e0Evan Cheng cl::desc("Specify the path to the \"safe\" backend program"), 7349419e28fe400509363cecf63a3a824002c1d9e0Evan Cheng cl::init("")); 7470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman 75c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke cl::opt<bool> 765e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer AppendProgramExitCode("append-exit-code", 775e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer cl::desc("Append the exit code to the output so it gets diff'd too"), 785e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer cl::init(false)); 795e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer 803c053a0a98e19f5ac8905011ad4c8238b08d6aeaChris Lattner cl::opt<std::string> 813c053a0a98e19f5ac8905011ad4c8238b08d6aeaChris Lattner InputFile("input", cl::init("/dev/null"), 823c053a0a98e19f5ac8905011ad4c8238b08d6aeaChris Lattner cl::desc("Filename to pipe in as stdin (default: /dev/null)")); 837dac658792425c10274594782d6fcf10208a16f0Chris Lattner 847dac658792425c10274594782d6fcf10208a16f0Chris Lattner cl::list<std::string> 857dac658792425c10274594782d6fcf10208a16f0Chris Lattner AdditionalSOs("additional-so", 867dac658792425c10274594782d6fcf10208a16f0Chris Lattner cl::desc("Additional shared objects to load " 877dac658792425c10274594782d6fcf10208a16f0Chris Lattner "into executing programs")); 887d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner 8951ab5c8862466bbddcd5c4369779c472978ed309Reid Spencer cl::list<std::string> 909ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov AdditionalLinkerArgs("Xlinker", 9151ab5c8862466bbddcd5c4369779c472978ed309Reid Spencer cl::desc("Additional arguments to pass to the linker")); 929ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov 939ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov cl::opt<std::string> 949ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov CustomExecCommand("exec-command", cl::init("simulate"), 959ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov cl::desc("Command to execute the bitcode (use with -run-custom) " 969ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov "(default: simulate)")); 974a10645c70199c8d8567fbc46312158c419720abChris Lattner} 984a10645c70199c8d8567fbc46312158c419720abChris Lattner 99d0fde30ce850b78371fd1386338350591f9ff494Brian Gaekenamespace llvm { 100fa76183e8e28985dfd17b1d6291c939dab4cbe1dChris Lattner // Anything specified after the --args option are taken as arguments to the 101fa76183e8e28985dfd17b1d6291c939dab4cbe1dChris Lattner // program being debugged. 102fa76183e8e28985dfd17b1d6291c939dab4cbe1dChris Lattner cl::list<std::string> 103fa76183e8e28985dfd17b1d6291c939dab4cbe1dChris Lattner InputArgv("args", cl::Positional, cl::desc("<program arguments>..."), 10460083e2fc0f1165b7511757449f1ee3852b7229cChris Lattner cl::ZeroOrMore, cl::PositionalEatsArgs); 10568ccdaa84909108c42417a8091c771598e26456eDaniel Dunbar 10668ccdaa84909108c42417a8091c771598e26456eDaniel Dunbar cl::opt<std::string> 10768ccdaa84909108c42417a8091c771598e26456eDaniel Dunbar OutputPrefix("output-prefix", cl::init("bugpoint"), 10868ccdaa84909108c42417a8091c771598e26456eDaniel Dunbar cl::desc("Prefix to use for outputs (default: 'bugpoint')")); 10970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman} 110636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke 11170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohmannamespace { 112636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke cl::list<std::string> 113636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke ToolArgv("tool-args", cl::Positional, cl::desc("<tool arguments>..."), 11460083e2fc0f1165b7511757449f1ee3852b7229cChris Lattner cl::ZeroOrMore, cl::PositionalEatsArgs); 11570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman 11670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman cl::list<std::string> 11770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeToolArgv("safe-tool-args", cl::Positional, 11870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman cl::desc("<safe-tool arguments>..."), 11970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman cl::ZeroOrMore, cl::PositionalEatsArgs); 12038efa38c864f6d29892d92102c0232b234b526edBill Wendling 121faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila cl::opt<std::string> 122faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila GCCBinary("gcc", cl::init("gcc"), 123faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila cl::desc("The gcc binary to use. (default 'gcc')")); 124faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila 12538efa38c864f6d29892d92102c0232b234b526edBill Wendling cl::list<std::string> 12638efa38c864f6d29892d92102c0232b234b526edBill Wendling GCCToolArgv("gcc-tool-args", cl::Positional, 12738efa38c864f6d29892d92102c0232b234b526edBill Wendling cl::desc("<gcc-tool arguments>..."), 12838efa38c864f6d29892d92102c0232b234b526edBill Wendling cl::ZeroOrMore, cl::PositionalEatsArgs); 129fa76183e8e28985dfd17b1d6291c939dab4cbe1dChris Lattner} 1309d679cbc6cb5c7dc8cca87a1e1548c480fb056b8Misha Brukman 1314a10645c70199c8d8567fbc46312158c419720abChris Lattner//===----------------------------------------------------------------------===// 1324a10645c70199c8d8567fbc46312158c419720abChris Lattner// BugDriver method implementation 1334a10645c70199c8d8567fbc46312158c419720abChris Lattner// 1344a10645c70199c8d8567fbc46312158c419720abChris Lattner 1354a10645c70199c8d8567fbc46312158c419720abChris Lattner/// initializeExecutionEnvironment - This method is used to set up the 1364a10645c70199c8d8567fbc46312158c419720abChris Lattner/// environment for executing LLVM programs. 1374a10645c70199c8d8567fbc46312158c419720abChris Lattner/// 1384a10645c70199c8d8567fbc46312158c419720abChris Lattnerbool BugDriver::initializeExecutionEnvironment() { 139ac95cc79ac0b899d566cc29c0f646f39c2fa35c0Dan Gohman outs() << "Initializing execution environment: "; 1404a10645c70199c8d8567fbc46312158c419720abChris Lattner 1414148556a9c767fdf3047ae8e004a759356b893ddMisha Brukman // Create an instance of the AbstractInterpreter interface as specified on 1424148556a9c767fdf3047ae8e004a759356b893ddMisha Brukman // the command line 14370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreter = 0; 1444a10645c70199c8d8567fbc46312158c419720abChris Lattner std::string Message; 145636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke 146cc876a7421f6dbcca98446058d5f0637092c6e1aChris Lattner switch (InterpreterSel) { 147b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke case AutoPick: 148b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke InterpreterSel = RunCBE; 14970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman Interpreter = 150faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila AbstractInterpreter::createCBE(getToolName(), Message, GCCBinary, 151faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila &ToolArgv, &GCCToolArgv); 152b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke if (!Interpreter) { 153b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke InterpreterSel = RunJIT; 154636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createJIT(getToolName(), Message, 155636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke &ToolArgv); 156b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke } 157b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke if (!Interpreter) { 158b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke InterpreterSel = RunLLC; 159636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createLLC(getToolName(), Message, 160faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila GCCBinary, &ToolArgv, 161faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila &GCCToolArgv); 162b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke } 163b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke if (!Interpreter) { 164b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke InterpreterSel = RunLLI; 165636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createLLI(getToolName(), Message, 166636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke &ToolArgv); 167b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke } 168b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke if (!Interpreter) { 169b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke InterpreterSel = AutoPick; 170b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke Message = "Sorry, I can't automatically select an interpreter!\n"; 171b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke } 172b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke break; 173769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner case RunLLI: 174636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createLLI(getToolName(), Message, 175636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke &ToolArgv); 176769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner break; 177769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner case RunLLC: 17850010429a7c3285dab15ede68acae7231fade367Chris Lattner case RunLLCIA: 17970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman case LLC_Safe: 180636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createLLC(getToolName(), Message, 181faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila GCCBinary, &ToolArgv, 182faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila &GCCToolArgv, 18350010429a7c3285dab15ede68acae7231fade367Chris Lattner InterpreterSel == RunLLCIA); 184769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner break; 185769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner case RunJIT: 186636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createJIT(getToolName(), Message, 187636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke &ToolArgv); 188769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner break; 189769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner case RunCBE: 190c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner case CBE_bug: 191c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner Interpreter = AbstractInterpreter::createCBE(getToolName(), Message, 192faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila GCCBinary, &ToolArgv, 193faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila &GCCToolArgv); 194769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner break; 1959ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov case Custom: 196197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman Interpreter = AbstractInterpreter::createCustom(Message, CustomExecCommand); 1979ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov break; 198cc876a7421f6dbcca98446058d5f0637092c6e1aChris Lattner default: 1994148556a9c767fdf3047ae8e004a759356b893ddMisha Brukman Message = "Sorry, this back-end is not supported by bugpoint right now!\n"; 200cc876a7421f6dbcca98446058d5f0637092c6e1aChris Lattner break; 2014a10645c70199c8d8567fbc46312158c419720abChris Lattner } 202ad6996d74f60340d6139af8f345d93735661fbbaMatthijs Kooijman if (!Interpreter) 20365f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << Message; 204ad6996d74f60340d6139af8f345d93735661fbbaMatthijs Kooijman else // Display informational messages on stdout instead of stderr 205ac95cc79ac0b899d566cc29c0f646f39c2fa35c0Dan Gohman outs() << Message; 2064a10645c70199c8d8567fbc46312158c419720abChris Lattner 20770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman std::string Path = SafeInterpreterPath; 20870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (Path.empty()) 20970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman Path = getToolName(); 21070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman std::vector<std::string> SafeToolArgs = SafeToolArgv; 21170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman switch (SafeInterpreterSel) { 21270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman case AutoPick: 21370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // In "cbe-bug" mode, default to using LLC as the "safe" backend. 21470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (!SafeInterpreter && 21570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman InterpreterSel == CBE_bug) { 21670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel = RunLLC; 21770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeToolArgs.push_back("--relocation-model=pic"); 218197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman SafeInterpreter = AbstractInterpreter::createLLC(Path.c_str(), Message, 219faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila GCCBinary, 22038efa38c864f6d29892d92102c0232b234b526edBill Wendling &SafeToolArgs, 22138efa38c864f6d29892d92102c0232b234b526edBill Wendling &GCCToolArgv); 22270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman } 22370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman 22470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // In "llc-safe" mode, default to using LLC as the "safe" backend. 22570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (!SafeInterpreter && 22670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman InterpreterSel == LLC_Safe) { 22770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel = RunLLC; 22870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeToolArgs.push_back("--relocation-model=pic"); 229197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman SafeInterpreter = AbstractInterpreter::createLLC(Path.c_str(), Message, 230faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila GCCBinary, 23138efa38c864f6d29892d92102c0232b234b526edBill Wendling &SafeToolArgs, 23238efa38c864f6d29892d92102c0232b234b526edBill Wendling &GCCToolArgv); 23370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman } 23470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman 23570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // Pick a backend that's different from the test backend. The JIT and 23670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // LLC backends share a lot of code, so prefer to use the CBE as the 23770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // safe back-end when testing them. 23870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (!SafeInterpreter && 23970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman InterpreterSel != RunCBE) { 24070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel = RunCBE; 241197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman SafeInterpreter = AbstractInterpreter::createCBE(Path.c_str(), Message, 242faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila GCCBinary, 24338efa38c864f6d29892d92102c0232b234b526edBill Wendling &SafeToolArgs, 24438efa38c864f6d29892d92102c0232b234b526edBill Wendling &GCCToolArgv); 24570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman } 24670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (!SafeInterpreter && 24770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman InterpreterSel != RunLLC && 24870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman InterpreterSel != RunJIT) { 24970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel = RunLLC; 25070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeToolArgs.push_back("--relocation-model=pic"); 251197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman SafeInterpreter = AbstractInterpreter::createLLC(Path.c_str(), Message, 252faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila GCCBinary, 25338efa38c864f6d29892d92102c0232b234b526edBill Wendling &SafeToolArgs, 25438efa38c864f6d29892d92102c0232b234b526edBill Wendling &GCCToolArgv); 25570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman } 25670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (!SafeInterpreter) { 25770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel = AutoPick; 25870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman Message = "Sorry, I can't automatically select an interpreter!\n"; 25970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman } 26070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman break; 26170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman case RunLLC: 26250010429a7c3285dab15ede68acae7231fade367Chris Lattner case RunLLCIA: 26370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeToolArgs.push_back("--relocation-model=pic"); 264197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman SafeInterpreter = AbstractInterpreter::createLLC(Path.c_str(), Message, 265faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila GCCBinary, &SafeToolArgs, 26650010429a7c3285dab15ede68acae7231fade367Chris Lattner &GCCToolArgv, 26750010429a7c3285dab15ede68acae7231fade367Chris Lattner SafeInterpreterSel == RunLLCIA); 26870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman break; 26970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman case RunCBE: 270197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman SafeInterpreter = AbstractInterpreter::createCBE(Path.c_str(), Message, 271faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila GCCBinary, &SafeToolArgs, 27238efa38c864f6d29892d92102c0232b234b526edBill Wendling &GCCToolArgv); 27370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman break; 27470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman case Custom: 275197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman SafeInterpreter = AbstractInterpreter::createCustom(Message, 27670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman CustomExecCommand); 27770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman break; 27870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman default: 27970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman Message = "Sorry, this back-end is not supported by bugpoint as the " 28070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman "\"safe\" backend right now!\n"; 28170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman break; 2827bb11547e497d7b8fc87f61c1089eee808e3a1eeChris Lattner } 283ac95cc79ac0b899d566cc29c0f646f39c2fa35c0Dan Gohman if (!SafeInterpreter) { outs() << Message << "\nExiting.\n"; exit(1); } 284c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner 285faa95763ebb081769bf6ac35e170394c9d477813Kalle Raiskila gcc = GCC::create(Message, GCCBinary, &GCCToolArgv); 286ac95cc79ac0b899d566cc29c0f646f39c2fa35c0Dan Gohman if (!gcc) { outs() << Message << "\nExiting.\n"; exit(1); } 287a259c9be2acc9528ec7feb3cfd51dcde36d87bb3Misha Brukman 2884a10645c70199c8d8567fbc46312158c419720abChris Lattner // If there was an error creating the selected interpreter, quit with error. 2894a10645c70199c8d8567fbc46312158c419720abChris Lattner return Interpreter == 0; 2904a10645c70199c8d8567fbc46312158c419720abChris Lattner} 2914a10645c70199c8d8567fbc46312158c419720abChris Lattner 29222ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky/// compileProgram - Try to compile the specified module, returning false and 29322ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky/// setting Error if an error occurs. This is used for code generation 29422ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky/// crash testing. 295ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner/// 29622ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewyckyvoid BugDriver::compileProgram(Module *M, std::string *Error) { 2978ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif // Emit the program to a bitcode file... 29868ccdaa84909108c42417a8091c771598e26456eDaniel Dunbar sys::Path BitcodeFile (OutputPrefix + "-test-program.bc"); 29951c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer std::string ErrMsg; 30022ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky if (BitcodeFile.makeUnique(true, &ErrMsg)) { 30165f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << ToolName << ": Error making unique filename: " << ErrMsg 30265f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman << "\n"; 30351c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer exit(1); 30451c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer } 30574382b7c699120fbec5cb5603c9cf4212eb37f06Chris Lattner if (writeProgramToFile(BitcodeFile.str(), M)) { 30665f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << ToolName << ": Error emitting bitcode to file '" 30774382b7c699120fbec5cb5603c9cf4212eb37f06Chris Lattner << BitcodeFile.str() << "'!\n"; 308ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner exit(1); 309ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner } 310ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner 31122ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky // Remove the temporary bitcode file when we are done. 31286c006a971eb6fab6bd4923ff7ec1c0bc9c28f74Anton Korobeynikov FileRemover BitcodeFileRemover(BitcodeFile, !SaveTemps); 313ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner 314ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner // Actually compile the program! 31541396302126c24f1d5231e191852ebf2ff37fe23Duncan Sands Interpreter->compileProgram(BitcodeFile.str(), Error, Timeout, MemoryLimit); 316ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner} 317ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner 3184a10645c70199c8d8567fbc46312158c419720abChris Lattner 3194a10645c70199c8d8567fbc46312158c419720abChris Lattner/// executeProgram - This method runs "Program", capturing the output of the 3204a10645c70199c8d8567fbc46312158c419720abChris Lattner/// program to a file, returning the filename of the file. A recommended 3214a10645c70199c8d8567fbc46312158c419720abChris Lattner/// filename may be optionally specified. 3224a10645c70199c8d8567fbc46312158c419720abChris Lattner/// 3234a10645c70199c8d8567fbc46312158c419720abChris Lattnerstd::string BugDriver::executeProgram(std::string OutputFile, 3248ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif std::string BitcodeFile, 325769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner const std::string &SharedObj, 32622ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky AbstractInterpreter *AI, 32722ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky std::string *Error) { 328769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner if (AI == 0) AI = Interpreter; 329769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner assert(AI && "Interpreter should have been created already!"); 3308ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif bool CreatedBitcode = false; 33151c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer std::string ErrMsg; 3328ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif if (BitcodeFile.empty()) { 3338ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif // Emit the program to a bitcode file... 33468ccdaa84909108c42417a8091c771598e26456eDaniel Dunbar sys::Path uniqueFilename(OutputPrefix + "-test-program.bc"); 33551c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer if (uniqueFilename.makeUnique(true, &ErrMsg)) { 33665f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << ToolName << ": Error making unique filename: " 33765f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman << ErrMsg << "!\n"; 33851c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer exit(1); 33951c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer } 34074382b7c699120fbec5cb5603c9cf4212eb37f06Chris Lattner BitcodeFile = uniqueFilename.str(); 3414a10645c70199c8d8567fbc46312158c419720abChris Lattner 3428ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif if (writeProgramToFile(BitcodeFile, Program)) { 34365f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << ToolName << ": Error emitting bitcode to file '" 34465f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman << BitcodeFile << "'!\n"; 3454a10645c70199c8d8567fbc46312158c419720abChris Lattner exit(1); 3464a10645c70199c8d8567fbc46312158c419720abChris Lattner } 3478ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif CreatedBitcode = true; 3484a10645c70199c8d8567fbc46312158c419720abChris Lattner } 3494a10645c70199c8d8567fbc46312158c419720abChris Lattner 3508ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif // Remove the temporary bitcode file when we are done. 35116350f8d00fc3a4a8d2da8a746a29979505af9a8Nick Lewycky sys::Path BitcodePath(BitcodeFile); 35286c006a971eb6fab6bd4923ff7ec1c0bc9c28f74Anton Korobeynikov FileRemover BitcodeFileRemover(BitcodePath, CreatedBitcode && !SaveTemps); 3539709272675feaca030cce14d0f5eb7f342b3fc1dChris Lattner 35468ccdaa84909108c42417a8091c771598e26456eDaniel Dunbar if (OutputFile.empty()) OutputFile = OutputPrefix + "-execution-output"; 3555073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 3564a10645c70199c8d8567fbc46312158c419720abChris Lattner // Check to see if this is a valid output filename... 35797182985d530dbef488696c95a39c14fe56c995bReid Spencer sys::Path uniqueFile(OutputFile); 35851c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer if (uniqueFile.makeUnique(true, &ErrMsg)) { 35965f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << ToolName << ": Error making unique filename: " 36065f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman << ErrMsg << "\n"; 36151c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer exit(1); 36251c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer } 36374382b7c699120fbec5cb5603c9cf4212eb37f06Chris Lattner OutputFile = uniqueFile.str(); 3644a10645c70199c8d8567fbc46312158c419720abChris Lattner 365769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner // Figure out which shared objects to run, if any. 3667dac658792425c10274594782d6fcf10208a16f0Chris Lattner std::vector<std::string> SharedObjs(AdditionalSOs); 367769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner if (!SharedObj.empty()) 368769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner SharedObjs.push_back(SharedObj); 369769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner 37022ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky int RetVal = AI->ExecuteProgram(BitcodeFile, InputArgv, InputFile, OutputFile, 37122ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky Error, AdditionalLinkerArgs, SharedObjs, 37270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman Timeout, MemoryLimit); 37322ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky if (!Error->empty()) 37422ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky return OutputFile; 3757d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner 3767d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner if (RetVal == -1) { 37765f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << "<timeout>"; 3787d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner static bool FirstTimeout = true; 3797d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner if (FirstTimeout) { 380ac95cc79ac0b899d566cc29c0f646f39c2fa35c0Dan Gohman outs() << "\n" 3817d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner "*** Program execution timed out! This mechanism is designed to handle\n" 3827d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner " programs stuck in infinite loops gracefully. The -timeout option\n" 3837d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner " can be used to change the timeout threshold or disable it completely\n" 3847d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner " (with -timeout=0). This message is only displayed once.\n"; 3857d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner FirstTimeout = false; 3867d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner } 3877d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner } 388769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner 3895e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer if (AppendProgramExitCode) { 3905e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer std::ofstream outFile(OutputFile.c_str(), std::ios_base::app); 3915e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer outFile << "exit " << RetVal << '\n'; 3925e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer outFile.close(); 3935e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer } 3945e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer 3954a10645c70199c8d8567fbc46312158c419720abChris Lattner // Return the filename we captured the output to. 3964a10645c70199c8d8567fbc46312158c419720abChris Lattner return OutputFile; 3974a10645c70199c8d8567fbc46312158c419720abChris Lattner} 3984a10645c70199c8d8567fbc46312158c419720abChris Lattner 39970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman/// executeProgramSafely - Used to create reference output with the "safe" 400c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke/// backend, if reference output is not provided. 401c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke/// 40222ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewyckystd::string BugDriver::executeProgramSafely(std::string OutputFile, 40322ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky std::string *Error) { 40422ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky return executeProgram(OutputFile, "", "", SafeInterpreter, Error); 405c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke} 4065073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 40722ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewyckystd::string BugDriver::compileSharedObject(const std::string &BitcodeFile, 40822ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky std::string &Error) { 4095073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman assert(Interpreter && "Interpreter should have been created already!"); 410c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner sys::Path OutputFile; 4115073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 41270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // Using the known-good backend. 41322ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky GCC::FileType FT = SafeInterpreter->OutputCode(BitcodeFile, OutputFile, 41422ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky Error); 41522ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky if (!Error.empty()) 41622ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky return ""; 4175073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 418a0f5b15e1eb8642d92b3141a6b88a5729ea979dcChris Lattner std::string SharedObjectFile; 41922ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky bool Failure = gcc->MakeSharedObject(OutputFile.str(), FT, SharedObjectFile, 42022ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky AdditionalLinkerArgs, Error); 42122ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky if (!Error.empty()) 42222ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky return ""; 42322ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky if (Failure) 424a0f5b15e1eb8642d92b3141a6b88a5729ea979dcChris Lattner exit(1); 4255073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 4265073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman // Remove the intermediate C file 427c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner OutputFile.eraseFromDisk(); 4285073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 4296ebe44d22f6dd1ab9f7aa1f3cfd02be52145d535Chris Lattner return "./" + SharedObjectFile; 4305073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman} 4315073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 4326a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// createReferenceFile - calls compileProgram and then records the output 4336a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// into ReferenceOutputFile. Returns true if reference file created, false 4346a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// otherwise. Note: initializeExecutionEnvironment should be called BEFORE 4356a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// this function. 4366a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// 437c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattnerbool BugDriver::createReferenceFile(Module *M, const std::string &Filename) { 43822ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky std::string Error; 43922ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky compileProgram(Program, &Error); 44022ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky if (!Error.empty()) 4416a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins return false; 44222ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky 44322ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky ReferenceOutputFile = executeProgramSafely(Filename, &Error); 44422ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky if (!Error.empty()) { 44522ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky errs() << Error; 44670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (Interpreter != SafeInterpreter) { 44765f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << "*** There is a bug running the \"safe\" backend. Either" 44865f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman << " debug it (for example with the -run-cbe bugpoint option," 44965f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman << " if CBE is being used as the \"safe\" backend), or fix the" 45065f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman << " error some other way.\n"; 4516a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins } 4526a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins return false; 4536a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins } 45422ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky outs() << "\nReference output is: " << ReferenceOutputFile << "\n\n"; 4556a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins return true; 4566a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins} 4575073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 4586a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// diffProgram - This method executes the specified module and diffs the 4596a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// output against the file specified by ReferenceOutputFile. If the output 46022ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky/// is different, 1 is returned. If there is a problem with the code 46122ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky/// generator (e.g., llc crashes), this will return -1 and set Error. 4624a10645c70199c8d8567fbc46312158c419720abChris Lattner/// 4638ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greifbool BugDriver::diffProgram(const std::string &BitcodeFile, 4645073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman const std::string &SharedObject, 46522ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky bool RemoveBitcode, 46622ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky std::string *ErrMsg) { 4674a10645c70199c8d8567fbc46312158c419720abChris Lattner // Execute the program, generating an output file... 46822ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky sys::Path Output(executeProgram("", BitcodeFile, SharedObject, 0, ErrMsg)); 46922ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky if (!ErrMsg->empty()) 47022ff748712b348300e51248339b6e8cf9b59e2c6Nick Lewycky return false; 471c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke 47265f62790d6e3e7f7ceb9cd12a7a51a66d95a3b03Chris Lattner std::string Error; 4734a10645c70199c8d8567fbc46312158c419720abChris Lattner bool FilesDifferent = false; 474a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner if (int Diff = DiffFilesWithTolerance(sys::Path(ReferenceOutputFile), 47574382b7c699120fbec5cb5603c9cf4212eb37f06Chris Lattner sys::Path(Output.str()), 476a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner AbsTolerance, RelTolerance, &Error)) { 477a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner if (Diff == 2) { 47865f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << "While diffing output: " << Error << '\n'; 47965f62790d6e3e7f7ceb9cd12a7a51a66d95a3b03Chris Lattner exit(1); 48065f62790d6e3e7f7ceb9cd12a7a51a66d95a3b03Chris Lattner } 48165f62790d6e3e7f7ceb9cd12a7a51a66d95a3b03Chris Lattner FilesDifferent = true; 48265f62790d6e3e7f7ceb9cd12a7a51a66d95a3b03Chris Lattner } 48380becf194d56524e8c75618ac57a34520f87a684David Goodwin else { 48480becf194d56524e8c75618ac57a34520f87a684David Goodwin // Remove the generated output if there are no differences. 48580becf194d56524e8c75618ac57a34520f87a684David Goodwin Output.eraseFromDisk(); 48680becf194d56524e8c75618ac57a34520f87a684David Goodwin } 4874a10645c70199c8d8567fbc46312158c419720abChris Lattner 4888ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif // Remove the bitcode file if we are supposed to. 4898ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif if (RemoveBitcode) 4908ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif sys::Path(BitcodeFile).eraseFromDisk(); 4914a10645c70199c8d8567fbc46312158c419720abChris Lattner return FilesDifferent; 4924a10645c70199c8d8567fbc46312158c419720abChris Lattner} 49391eabc13d3a456cc4b387d3d7fdb041d976732c7Misha Brukman 49491eabc13d3a456cc4b387d3d7fdb041d976732c7Misha Brukmanbool BugDriver::isExecutingJIT() { 49591eabc13d3a456cc4b387d3d7fdb041d976732c7Misha Brukman return InterpreterSel == RunJIT; 49691eabc13d3a456cc4b387d3d7fdb041d976732c7Misha Brukman} 497d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 498