ExecutionDriver.cpp revision 70ef449741da8b1ef035e04a55958652a0200ba1
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" 214a10645c70199c8d8567fbc46312158c419720abChris Lattner#include <fstream> 22e31a9ccb9c7568e6f185f667b53c274c0be9e603Chris Lattner#include <iostream> 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 { 319ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov AutoPick, RunLLI, RunJIT, RunLLC, 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"), 485073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman clEnumValN(RunCBE, "run-cbe", "Compile with CBE"), 49c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner clEnumValN(CBE_bug,"cbe-bug", "Find CBE bugs"), 50cd6f46e2ac4c1d64067237c0b28eccfae22bd9f4Chris Lattner clEnumValN(LLC_Safe, "llc-safe", "Use LLC for all"), 519ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov clEnumValN(Custom, "run-custom", 529ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov "Use -exec-command to define a command to execute " 539ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov "the bitcode. Useful for cross-compilation."), 544d143ee01988e1b52e106ffccbb313937ca5e886Chris Lattner clEnumValEnd), 55b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke cl::init(AutoPick)); 563c053a0a98e19f5ac8905011ad4c8238b08d6aeaChris Lattner 5770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman cl::opt<OutputType> 5870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel(cl::desc("Specify \"safe\" i.e. known-good backend:"), 5970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman cl::values(clEnumValN(AutoPick, "safe-auto", "Use best guess"), 6070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman clEnumValN(RunLLC, "safe-run-llc", "Compile with LLC"), 6170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman clEnumValN(RunCBE, "safe-run-cbe", "Compile with CBE"), 6270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman clEnumValN(Custom, "safe-run-custom", 6370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman "Use -exec-command to define a command to execute " 6470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman "the bitcode. Useful for cross-compilation."), 6570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman clEnumValEnd), 6670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman cl::init(AutoPick)); 6770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman 6870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman cl::opt<std::string> 6970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterPath("safe-path", 7070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman cl::desc("Specify the path to the \"safe\" backend program"), 7170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman cl::init("")); 7270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman 73c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke cl::opt<bool> 745e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer AppendProgramExitCode("append-exit-code", 755e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer cl::desc("Append the exit code to the output so it gets diff'd too"), 765e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer cl::init(false)); 775e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer 783c053a0a98e19f5ac8905011ad4c8238b08d6aeaChris Lattner cl::opt<std::string> 793c053a0a98e19f5ac8905011ad4c8238b08d6aeaChris Lattner InputFile("input", cl::init("/dev/null"), 803c053a0a98e19f5ac8905011ad4c8238b08d6aeaChris Lattner cl::desc("Filename to pipe in as stdin (default: /dev/null)")); 817dac658792425c10274594782d6fcf10208a16f0Chris Lattner 827dac658792425c10274594782d6fcf10208a16f0Chris Lattner cl::list<std::string> 837dac658792425c10274594782d6fcf10208a16f0Chris Lattner AdditionalSOs("additional-so", 847dac658792425c10274594782d6fcf10208a16f0Chris Lattner cl::desc("Additional shared objects to load " 857dac658792425c10274594782d6fcf10208a16f0Chris Lattner "into executing programs")); 867d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner 8751ab5c8862466bbddcd5c4369779c472978ed309Reid Spencer cl::list<std::string> 889ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov AdditionalLinkerArgs("Xlinker", 8951ab5c8862466bbddcd5c4369779c472978ed309Reid Spencer cl::desc("Additional arguments to pass to the linker")); 909ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov 919ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov cl::opt<std::string> 929ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov CustomExecCommand("exec-command", cl::init("simulate"), 939ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov cl::desc("Command to execute the bitcode (use with -run-custom) " 949ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov "(default: simulate)")); 954a10645c70199c8d8567fbc46312158c419720abChris Lattner} 964a10645c70199c8d8567fbc46312158c419720abChris Lattner 97d0fde30ce850b78371fd1386338350591f9ff494Brian Gaekenamespace llvm { 98fa76183e8e28985dfd17b1d6291c939dab4cbe1dChris Lattner // Anything specified after the --args option are taken as arguments to the 99fa76183e8e28985dfd17b1d6291c939dab4cbe1dChris Lattner // program being debugged. 100fa76183e8e28985dfd17b1d6291c939dab4cbe1dChris Lattner cl::list<std::string> 101fa76183e8e28985dfd17b1d6291c939dab4cbe1dChris Lattner InputArgv("args", cl::Positional, cl::desc("<program arguments>..."), 10260083e2fc0f1165b7511757449f1ee3852b7229cChris Lattner cl::ZeroOrMore, cl::PositionalEatsArgs); 10370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman} 104636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke 10570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohmannamespace { 106636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke cl::list<std::string> 107636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke ToolArgv("tool-args", cl::Positional, cl::desc("<tool arguments>..."), 10860083e2fc0f1165b7511757449f1ee3852b7229cChris Lattner cl::ZeroOrMore, cl::PositionalEatsArgs); 10970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman 11070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman cl::list<std::string> 11170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeToolArgv("safe-tool-args", cl::Positional, 11270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman cl::desc("<safe-tool arguments>..."), 11370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman cl::ZeroOrMore, cl::PositionalEatsArgs); 114fa76183e8e28985dfd17b1d6291c939dab4cbe1dChris Lattner} 1159d679cbc6cb5c7dc8cca87a1e1548c480fb056b8Misha Brukman 1164a10645c70199c8d8567fbc46312158c419720abChris Lattner//===----------------------------------------------------------------------===// 1174a10645c70199c8d8567fbc46312158c419720abChris Lattner// BugDriver method implementation 1184a10645c70199c8d8567fbc46312158c419720abChris Lattner// 1194a10645c70199c8d8567fbc46312158c419720abChris Lattner 1204a10645c70199c8d8567fbc46312158c419720abChris Lattner/// initializeExecutionEnvironment - This method is used to set up the 1214a10645c70199c8d8567fbc46312158c419720abChris Lattner/// environment for executing LLVM programs. 1224a10645c70199c8d8567fbc46312158c419720abChris Lattner/// 1234a10645c70199c8d8567fbc46312158c419720abChris Lattnerbool BugDriver::initializeExecutionEnvironment() { 1244a10645c70199c8d8567fbc46312158c419720abChris Lattner std::cout << "Initializing execution environment: "; 1254a10645c70199c8d8567fbc46312158c419720abChris Lattner 1264148556a9c767fdf3047ae8e004a759356b893ddMisha Brukman // Create an instance of the AbstractInterpreter interface as specified on 1274148556a9c767fdf3047ae8e004a759356b893ddMisha Brukman // the command line 12870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreter = 0; 1294a10645c70199c8d8567fbc46312158c419720abChris Lattner std::string Message; 130636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke 131cc876a7421f6dbcca98446058d5f0637092c6e1aChris Lattner switch (InterpreterSel) { 132b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke case AutoPick: 133b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke InterpreterSel = RunCBE; 13470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman Interpreter = 13570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman AbstractInterpreter::createCBE(getToolName(), Message, &ToolArgv); 136b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke if (!Interpreter) { 137b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke InterpreterSel = RunJIT; 138636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createJIT(getToolName(), Message, 139636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke &ToolArgv); 140b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke } 141b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke if (!Interpreter) { 142b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke InterpreterSel = RunLLC; 143636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createLLC(getToolName(), Message, 144636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke &ToolArgv); 145b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke } 146b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke if (!Interpreter) { 147b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke InterpreterSel = RunLLI; 148636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createLLI(getToolName(), Message, 149636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke &ToolArgv); 150b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke } 151b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke if (!Interpreter) { 152b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke InterpreterSel = AutoPick; 153b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke Message = "Sorry, I can't automatically select an interpreter!\n"; 154b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke } 155b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke break; 156769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner case RunLLI: 157636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createLLI(getToolName(), Message, 158636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke &ToolArgv); 159769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner break; 160769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner case RunLLC: 16170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman case LLC_Safe: 162636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createLLC(getToolName(), Message, 163636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke &ToolArgv); 164769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner break; 165769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner case RunJIT: 166636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createJIT(getToolName(), Message, 167636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke &ToolArgv); 168769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner break; 169769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner case RunCBE: 170c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner case CBE_bug: 171c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner Interpreter = AbstractInterpreter::createCBE(getToolName(), Message, 172c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner &ToolArgv); 173769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner break; 1749ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov case Custom: 1759ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov Interpreter = AbstractInterpreter::createCustom(getToolName(), Message, 1769ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov CustomExecCommand); 1779ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov break; 178cc876a7421f6dbcca98446058d5f0637092c6e1aChris Lattner default: 1794148556a9c767fdf3047ae8e004a759356b893ddMisha Brukman Message = "Sorry, this back-end is not supported by bugpoint right now!\n"; 180cc876a7421f6dbcca98446058d5f0637092c6e1aChris Lattner break; 1814a10645c70199c8d8567fbc46312158c419720abChris Lattner } 182ad6996d74f60340d6139af8f345d93735661fbbaMatthijs Kooijman if (!Interpreter) 183ad6996d74f60340d6139af8f345d93735661fbbaMatthijs Kooijman std::cerr << Message; 184ad6996d74f60340d6139af8f345d93735661fbbaMatthijs Kooijman else // Display informational messages on stdout instead of stderr 185ad6996d74f60340d6139af8f345d93735661fbbaMatthijs Kooijman std::cout << Message; 1864a10645c70199c8d8567fbc46312158c419720abChris Lattner 18770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman std::string Path = SafeInterpreterPath; 18870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (Path.empty()) 18970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman Path = getToolName(); 19070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman std::vector<std::string> SafeToolArgs = SafeToolArgv; 19170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman switch (SafeInterpreterSel) { 19270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman case AutoPick: 19370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // In "cbe-bug" mode, default to using LLC as the "safe" backend. 19470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (!SafeInterpreter && 19570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman InterpreterSel == CBE_bug) { 19670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel = RunLLC; 19770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeToolArgs.push_back("--relocation-model=pic"); 19870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreter = AbstractInterpreter::createLLC(Path, Message, 19970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman &SafeToolArgs); 20070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman } 20170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman 20270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // In "llc-safe" mode, default to using LLC as the "safe" backend. 20370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (!SafeInterpreter && 20470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman InterpreterSel == LLC_Safe) { 20570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel = RunLLC; 20670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeToolArgs.push_back("--relocation-model=pic"); 20770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreter = AbstractInterpreter::createLLC(Path, Message, 20870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman &SafeToolArgs); 20970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman } 21070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman 21170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // Pick a backend that's different from the test backend. The JIT and 21270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // LLC backends share a lot of code, so prefer to use the CBE as the 21370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // safe back-end when testing them. 21470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (!SafeInterpreter && 21570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman InterpreterSel != RunCBE) { 21670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel = RunCBE; 21770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreter = AbstractInterpreter::createCBE(Path, Message, 21870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman &SafeToolArgs); 21970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman } 22070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (!SafeInterpreter && 22170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman InterpreterSel != RunLLC && 22270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman InterpreterSel != RunJIT) { 22370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel = RunLLC; 22470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeToolArgs.push_back("--relocation-model=pic"); 22570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreter = AbstractInterpreter::createLLC(Path, Message, 22670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman &SafeToolArgs); 22770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman } 22870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (!SafeInterpreter) { 22970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel = AutoPick; 23070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman Message = "Sorry, I can't automatically select an interpreter!\n"; 23170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman } 23270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman break; 23370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman case RunLLC: 23470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeToolArgs.push_back("--relocation-model=pic"); 23570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreter = AbstractInterpreter::createLLC(Path, Message, 23670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman &SafeToolArgs); 23770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman break; 23870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman case RunCBE: 23970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreter = AbstractInterpreter::createCBE(Path, Message, 24070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman &SafeToolArgs); 24170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman break; 24270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman case Custom: 24370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreter = AbstractInterpreter::createCustom(Path, Message, 24470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman CustomExecCommand); 24570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman break; 24670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman default: 24770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman Message = "Sorry, this back-end is not supported by bugpoint as the " 24870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman "\"safe\" backend right now!\n"; 24970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman break; 2507bb11547e497d7b8fc87f61c1089eee808e3a1eeChris Lattner } 25170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (!SafeInterpreter) { std::cout << Message << "\nExiting.\n"; exit(1); } 252c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner 253769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner gcc = GCC::create(getToolName(), Message); 254a259c9be2acc9528ec7feb3cfd51dcde36d87bb3Misha Brukman if (!gcc) { std::cout << Message << "\nExiting.\n"; exit(1); } 255a259c9be2acc9528ec7feb3cfd51dcde36d87bb3Misha Brukman 2564a10645c70199c8d8567fbc46312158c419720abChris Lattner // If there was an error creating the selected interpreter, quit with error. 2574a10645c70199c8d8567fbc46312158c419720abChris Lattner return Interpreter == 0; 2584a10645c70199c8d8567fbc46312158c419720abChris Lattner} 2594a10645c70199c8d8567fbc46312158c419720abChris Lattner 260ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner/// compileProgram - Try to compile the specified module, throwing an exception 261ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner/// if an error occurs, or returning normally if not. This is used for code 262ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner/// generation crash testing. 263ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner/// 264ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattnervoid BugDriver::compileProgram(Module *M) { 2658ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif // Emit the program to a bitcode file... 2668ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif sys::Path BitcodeFile ("bugpoint-test-program.bc"); 26751c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer std::string ErrMsg; 2688ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif if (BitcodeFile.makeUnique(true,&ErrMsg)) { 26951c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer std::cerr << ToolName << ": Error making unique filename: " << ErrMsg 27051c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer << "\n"; 27151c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer exit(1); 27251c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer } 2738ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif if (writeProgramToFile(BitcodeFile.toString(), M)) { 2748ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif std::cerr << ToolName << ": Error emitting bitcode to file '" 2758ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif << BitcodeFile << "'!\n"; 276ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner exit(1); 277ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner } 278ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner 2798ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif // Remove the temporary bitcode file when we are done. 2808ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif FileRemover BitcodeFileRemover(BitcodeFile); 281ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner 282ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner // Actually compile the program! 2838ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif Interpreter->compileProgram(BitcodeFile.toString()); 284ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner} 285ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner 2864a10645c70199c8d8567fbc46312158c419720abChris Lattner 2874a10645c70199c8d8567fbc46312158c419720abChris Lattner/// executeProgram - This method runs "Program", capturing the output of the 2884a10645c70199c8d8567fbc46312158c419720abChris Lattner/// program to a file, returning the filename of the file. A recommended 2894a10645c70199c8d8567fbc46312158c419720abChris Lattner/// filename may be optionally specified. 2904a10645c70199c8d8567fbc46312158c419720abChris Lattner/// 2914a10645c70199c8d8567fbc46312158c419720abChris Lattnerstd::string BugDriver::executeProgram(std::string OutputFile, 2928ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif std::string BitcodeFile, 293769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner const std::string &SharedObj, 294c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke AbstractInterpreter *AI, 295c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke bool *ProgramExitedNonzero) { 296769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner if (AI == 0) AI = Interpreter; 297769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner assert(AI && "Interpreter should have been created already!"); 2988ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif bool CreatedBitcode = false; 29951c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer std::string ErrMsg; 3008ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif if (BitcodeFile.empty()) { 3018ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif // Emit the program to a bitcode file... 30297182985d530dbef488696c95a39c14fe56c995bReid Spencer sys::Path uniqueFilename("bugpoint-test-program.bc"); 30351c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer if (uniqueFilename.makeUnique(true, &ErrMsg)) { 30451c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer std::cerr << ToolName << ": Error making unique filename: " 30551c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer << ErrMsg << "!\n"; 30651c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer exit(1); 30751c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer } 3088ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif BitcodeFile = uniqueFilename.toString(); 3094a10645c70199c8d8567fbc46312158c419720abChris Lattner 3108ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif if (writeProgramToFile(BitcodeFile, Program)) { 3118ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif std::cerr << ToolName << ": Error emitting bitcode to file '" 3128ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif << BitcodeFile << "'!\n"; 3134a10645c70199c8d8567fbc46312158c419720abChris Lattner exit(1); 3144a10645c70199c8d8567fbc46312158c419720abChris Lattner } 3158ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif CreatedBitcode = true; 3164a10645c70199c8d8567fbc46312158c419720abChris Lattner } 3174a10645c70199c8d8567fbc46312158c419720abChris Lattner 3188ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif // Remove the temporary bitcode file when we are done. 3198ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif sys::Path BitcodePath (BitcodeFile); 3208ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif FileRemover BitcodeFileRemover(BitcodePath, CreatedBitcode); 3219709272675feaca030cce14d0f5eb7f342b3fc1dChris Lattner 3224a10645c70199c8d8567fbc46312158c419720abChris Lattner if (OutputFile.empty()) OutputFile = "bugpoint-execution-output"; 3235073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 3244a10645c70199c8d8567fbc46312158c419720abChris Lattner // Check to see if this is a valid output filename... 32597182985d530dbef488696c95a39c14fe56c995bReid Spencer sys::Path uniqueFile(OutputFile); 32651c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer if (uniqueFile.makeUnique(true, &ErrMsg)) { 32751c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer std::cerr << ToolName << ": Error making unique filename: " 32851c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer << ErrMsg << "\n"; 32951c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer exit(1); 33051c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer } 33197182985d530dbef488696c95a39c14fe56c995bReid Spencer OutputFile = uniqueFile.toString(); 3324a10645c70199c8d8567fbc46312158c419720abChris Lattner 333769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner // Figure out which shared objects to run, if any. 3347dac658792425c10274594782d6fcf10208a16f0Chris Lattner std::vector<std::string> SharedObjs(AdditionalSOs); 335769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner if (!SharedObj.empty()) 336769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner SharedObjs.push_back(SharedObj); 337769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner 33870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman int RetVal = AI->ExecuteProgram(BitcodeFile, InputArgv, InputFile, 33970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman OutputFile, AdditionalLinkerArgs, SharedObjs, 34070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman Timeout, MemoryLimit); 3417d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner 3427d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner if (RetVal == -1) { 3437d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner std::cerr << "<timeout>"; 3447d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner static bool FirstTimeout = true; 3457d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner if (FirstTimeout) { 3467d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner std::cout << "\n" 3477d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner "*** Program execution timed out! This mechanism is designed to handle\n" 3487d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner " programs stuck in infinite loops gracefully. The -timeout option\n" 3497d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner " can be used to change the timeout threshold or disable it completely\n" 3507d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner " (with -timeout=0). This message is only displayed once.\n"; 3517d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner FirstTimeout = false; 3527d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner } 3537d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner } 354769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner 3555e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer if (AppendProgramExitCode) { 3565e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer std::ofstream outFile(OutputFile.c_str(), std::ios_base::app); 3575e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer outFile << "exit " << RetVal << '\n'; 3585e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer outFile.close(); 3595e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer } 3605e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer 361c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke if (ProgramExitedNonzero != 0) 362c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke *ProgramExitedNonzero = (RetVal != 0); 3634a10645c70199c8d8567fbc46312158c419720abChris Lattner 3644a10645c70199c8d8567fbc46312158c419720abChris Lattner // Return the filename we captured the output to. 3654a10645c70199c8d8567fbc46312158c419720abChris Lattner return OutputFile; 3664a10645c70199c8d8567fbc46312158c419720abChris Lattner} 3674a10645c70199c8d8567fbc46312158c419720abChris Lattner 36870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman/// executeProgramSafely - Used to create reference output with the "safe" 369c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke/// backend, if reference output is not provided. 370c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke/// 37170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohmanstd::string BugDriver::executeProgramSafely(std::string OutputFile) { 372c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke bool ProgramExitedNonzero; 37370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman std::string outFN = executeProgram(OutputFile, "", "", SafeInterpreter, 374c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke &ProgramExitedNonzero); 375c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke return outFN; 376c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke} 3775073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 3788ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greifstd::string BugDriver::compileSharedObject(const std::string &BitcodeFile) { 3795073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman assert(Interpreter && "Interpreter should have been created already!"); 380c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner sys::Path OutputFile; 3815073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 38270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // Using the known-good backend. 38370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman GCC::FileType FT = SafeInterpreter->OutputCode(BitcodeFile, OutputFile); 3845073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 385a0f5b15e1eb8642d92b3141a6b88a5729ea979dcChris Lattner std::string SharedObjectFile; 386c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner if (gcc->MakeSharedObject(OutputFile.toString(), FT, 387130e2a361147a31ae631d3648afdd95a5c0d40f2Chris Lattner SharedObjectFile, AdditionalLinkerArgs)) 388a0f5b15e1eb8642d92b3141a6b88a5729ea979dcChris Lattner exit(1); 3895073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 3905073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman // Remove the intermediate C file 391c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner OutputFile.eraseFromDisk(); 3925073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 3936ebe44d22f6dd1ab9f7aa1f3cfd02be52145d535Chris Lattner return "./" + SharedObjectFile; 3945073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman} 3955073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 3966a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// createReferenceFile - calls compileProgram and then records the output 3976a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// into ReferenceOutputFile. Returns true if reference file created, false 3986a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// otherwise. Note: initializeExecutionEnvironment should be called BEFORE 3996a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// this function. 4006a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// 401c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattnerbool BugDriver::createReferenceFile(Module *M, const std::string &Filename) { 4026a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins try { 4036a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins compileProgram(Program); 404d41b30def3181bce4bf87e8bde664d15663165d0Jeff Cohen } catch (ToolExecutionError &) { 4056a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins return false; 4066a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins } 4076a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins try { 40870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman ReferenceOutputFile = executeProgramSafely(Filename); 4096a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins std::cout << "Reference output is: " << ReferenceOutputFile << "\n\n"; 4106a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins } catch (ToolExecutionError &TEE) { 4116a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins std::cerr << TEE.what(); 41270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (Interpreter != SafeInterpreter) { 41370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman std::cerr << "*** There is a bug running the \"safe\" backend. Either" 41470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman << " debug it (for example with the -run-cbe bugpoint option," 41570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman << " if CBE is being used as the \"safe\" backend), or fix the" 41670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman << " error some other way.\n"; 4176a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins } 4186a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins return false; 4196a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins } 4206a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins return true; 4216a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins} 4225073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 4236a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// diffProgram - This method executes the specified module and diffs the 4246a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// output against the file specified by ReferenceOutputFile. If the output 4256a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// is different, true is returned. If there is a problem with the code 4266a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// generator (e.g., llc crashes), this will throw an exception. 4274a10645c70199c8d8567fbc46312158c419720abChris Lattner/// 4288ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greifbool BugDriver::diffProgram(const std::string &BitcodeFile, 4295073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman const std::string &SharedObject, 4308ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif bool RemoveBitcode) { 431c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke bool ProgramExitedNonzero; 432c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke 4334a10645c70199c8d8567fbc46312158c419720abChris Lattner // Execute the program, generating an output file... 4348ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif sys::Path Output(executeProgram("", BitcodeFile, SharedObject, 0, 4355f76760c880e6d61c229d2058c5699b033caeae1Reid Spencer &ProgramExitedNonzero)); 436c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke 43765f62790d6e3e7f7ceb9cd12a7a51a66d95a3b03Chris Lattner std::string Error; 4384a10645c70199c8d8567fbc46312158c419720abChris Lattner bool FilesDifferent = false; 439a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner if (int Diff = DiffFilesWithTolerance(sys::Path(ReferenceOutputFile), 440a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner sys::Path(Output.toString()), 441a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner AbsTolerance, RelTolerance, &Error)) { 442a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner if (Diff == 2) { 443eed80e23751ecc50c1fa5604f67be4b826d5b417Misha Brukman std::cerr << "While diffing output: " << Error << '\n'; 44465f62790d6e3e7f7ceb9cd12a7a51a66d95a3b03Chris Lattner exit(1); 44565f62790d6e3e7f7ceb9cd12a7a51a66d95a3b03Chris Lattner } 44665f62790d6e3e7f7ceb9cd12a7a51a66d95a3b03Chris Lattner FilesDifferent = true; 44765f62790d6e3e7f7ceb9cd12a7a51a66d95a3b03Chris Lattner } 4483da94aec4d429b2ba0f65fa040c33650cade196bMisha Brukman 4491a28a2b76d16913fe38f47032d31620a55dcce2eChris Lattner // Remove the generated output. 450a229c5cce75209047db32c6039aa0b0fd481f049Reid Spencer Output.eraseFromDisk(); 4514a10645c70199c8d8567fbc46312158c419720abChris Lattner 4528ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif // Remove the bitcode file if we are supposed to. 4538ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif if (RemoveBitcode) 4548ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif sys::Path(BitcodeFile).eraseFromDisk(); 4554a10645c70199c8d8567fbc46312158c419720abChris Lattner return FilesDifferent; 4564a10645c70199c8d8567fbc46312158c419720abChris Lattner} 45791eabc13d3a456cc4b387d3d7fdb041d976732c7Misha Brukman 45891eabc13d3a456cc4b387d3d7fdb041d976732c7Misha Brukmanbool BugDriver::isExecutingJIT() { 45991eabc13d3a456cc4b387d3d7fdb041d976732c7Misha Brukman return InterpreterSel == RunJIT; 46091eabc13d3a456cc4b387d3d7fdb041d976732c7Misha Brukman} 461d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 462