ExecutionDriver.cpp revision 50010429a7c3285dab15ede68acae7231fade367
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 12138efa38c864f6d29892d92102c0232b234b526edBill Wendling cl::list<std::string> 12238efa38c864f6d29892d92102c0232b234b526edBill Wendling GCCToolArgv("gcc-tool-args", cl::Positional, 12338efa38c864f6d29892d92102c0232b234b526edBill Wendling cl::desc("<gcc-tool arguments>..."), 12438efa38c864f6d29892d92102c0232b234b526edBill Wendling cl::ZeroOrMore, cl::PositionalEatsArgs); 125fa76183e8e28985dfd17b1d6291c939dab4cbe1dChris Lattner} 1269d679cbc6cb5c7dc8cca87a1e1548c480fb056b8Misha Brukman 1274a10645c70199c8d8567fbc46312158c419720abChris Lattner//===----------------------------------------------------------------------===// 1284a10645c70199c8d8567fbc46312158c419720abChris Lattner// BugDriver method implementation 1294a10645c70199c8d8567fbc46312158c419720abChris Lattner// 1304a10645c70199c8d8567fbc46312158c419720abChris Lattner 1314a10645c70199c8d8567fbc46312158c419720abChris Lattner/// initializeExecutionEnvironment - This method is used to set up the 1324a10645c70199c8d8567fbc46312158c419720abChris Lattner/// environment for executing LLVM programs. 1334a10645c70199c8d8567fbc46312158c419720abChris Lattner/// 1344a10645c70199c8d8567fbc46312158c419720abChris Lattnerbool BugDriver::initializeExecutionEnvironment() { 135ac95cc79ac0b899d566cc29c0f646f39c2fa35c0Dan Gohman outs() << "Initializing execution environment: "; 1364a10645c70199c8d8567fbc46312158c419720abChris Lattner 1374148556a9c767fdf3047ae8e004a759356b893ddMisha Brukman // Create an instance of the AbstractInterpreter interface as specified on 1384148556a9c767fdf3047ae8e004a759356b893ddMisha Brukman // the command line 13970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreter = 0; 1404a10645c70199c8d8567fbc46312158c419720abChris Lattner std::string Message; 141636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke 142cc876a7421f6dbcca98446058d5f0637092c6e1aChris Lattner switch (InterpreterSel) { 143b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke case AutoPick: 144b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke InterpreterSel = RunCBE; 14570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman Interpreter = 14638efa38c864f6d29892d92102c0232b234b526edBill Wendling AbstractInterpreter::createCBE(getToolName(), Message, &ToolArgv, 14738efa38c864f6d29892d92102c0232b234b526edBill Wendling &GCCToolArgv); 148b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke if (!Interpreter) { 149b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke InterpreterSel = RunJIT; 150636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createJIT(getToolName(), Message, 151636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke &ToolArgv); 152b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke } 153b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke if (!Interpreter) { 154b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke InterpreterSel = RunLLC; 155636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createLLC(getToolName(), Message, 15638efa38c864f6d29892d92102c0232b234b526edBill Wendling &ToolArgv, &GCCToolArgv); 157b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke } 158b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke if (!Interpreter) { 159b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke InterpreterSel = RunLLI; 160636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createLLI(getToolName(), Message, 161636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke &ToolArgv); 162b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke } 163b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke if (!Interpreter) { 164b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke InterpreterSel = AutoPick; 165b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke Message = "Sorry, I can't automatically select an interpreter!\n"; 166b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke } 167b5ee509be2ce78badc11fd649dda90ec78394d1aBrian Gaeke break; 168769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner case RunLLI: 169636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createLLI(getToolName(), Message, 170636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke &ToolArgv); 171769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner break; 172769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner case RunLLC: 17350010429a7c3285dab15ede68acae7231fade367Chris Lattner case RunLLCIA: 17470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman case LLC_Safe: 175636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createLLC(getToolName(), Message, 17650010429a7c3285dab15ede68acae7231fade367Chris Lattner &ToolArgv, &GCCToolArgv, 17750010429a7c3285dab15ede68acae7231fade367Chris Lattner InterpreterSel == RunLLCIA); 178769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner break; 179769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner case RunJIT: 180636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke Interpreter = AbstractInterpreter::createJIT(getToolName(), Message, 181636df3d7ec51a8c6fd759a98853ff709ae54d64eBrian Gaeke &ToolArgv); 182769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner break; 183769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner case RunCBE: 184c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner case CBE_bug: 185c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner Interpreter = AbstractInterpreter::createCBE(getToolName(), Message, 18638efa38c864f6d29892d92102c0232b234b526edBill Wendling &ToolArgv, &GCCToolArgv); 187769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner break; 1889ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov case Custom: 189197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman Interpreter = AbstractInterpreter::createCustom(Message, CustomExecCommand); 1909ef7425a4d44ff129495da2357c98c67162fbeffAnton Korobeynikov break; 191cc876a7421f6dbcca98446058d5f0637092c6e1aChris Lattner default: 1924148556a9c767fdf3047ae8e004a759356b893ddMisha Brukman Message = "Sorry, this back-end is not supported by bugpoint right now!\n"; 193cc876a7421f6dbcca98446058d5f0637092c6e1aChris Lattner break; 1944a10645c70199c8d8567fbc46312158c419720abChris Lattner } 195ad6996d74f60340d6139af8f345d93735661fbbaMatthijs Kooijman if (!Interpreter) 19665f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << Message; 197ad6996d74f60340d6139af8f345d93735661fbbaMatthijs Kooijman else // Display informational messages on stdout instead of stderr 198ac95cc79ac0b899d566cc29c0f646f39c2fa35c0Dan Gohman outs() << Message; 1994a10645c70199c8d8567fbc46312158c419720abChris Lattner 20070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman std::string Path = SafeInterpreterPath; 20170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (Path.empty()) 20270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman Path = getToolName(); 20370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman std::vector<std::string> SafeToolArgs = SafeToolArgv; 20470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman switch (SafeInterpreterSel) { 20570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman case AutoPick: 20670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // In "cbe-bug" mode, default to using LLC as the "safe" backend. 20770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (!SafeInterpreter && 20870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman InterpreterSel == CBE_bug) { 20970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel = RunLLC; 21070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeToolArgs.push_back("--relocation-model=pic"); 211197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman SafeInterpreter = AbstractInterpreter::createLLC(Path.c_str(), Message, 21238efa38c864f6d29892d92102c0232b234b526edBill Wendling &SafeToolArgs, 21338efa38c864f6d29892d92102c0232b234b526edBill Wendling &GCCToolArgv); 21470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman } 21570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman 21670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // In "llc-safe" mode, default to using LLC as the "safe" backend. 21770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (!SafeInterpreter && 21870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman InterpreterSel == LLC_Safe) { 21970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel = RunLLC; 22070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeToolArgs.push_back("--relocation-model=pic"); 221197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman SafeInterpreter = AbstractInterpreter::createLLC(Path.c_str(), Message, 22238efa38c864f6d29892d92102c0232b234b526edBill Wendling &SafeToolArgs, 22338efa38c864f6d29892d92102c0232b234b526edBill Wendling &GCCToolArgv); 22470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman } 22570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman 22670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // Pick a backend that's different from the test backend. The JIT and 22770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // LLC backends share a lot of code, so prefer to use the CBE as the 22870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // safe back-end when testing them. 22970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (!SafeInterpreter && 23070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman InterpreterSel != RunCBE) { 23170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel = RunCBE; 232197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman SafeInterpreter = AbstractInterpreter::createCBE(Path.c_str(), Message, 23338efa38c864f6d29892d92102c0232b234b526edBill Wendling &SafeToolArgs, 23438efa38c864f6d29892d92102c0232b234b526edBill Wendling &GCCToolArgv); 23570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman } 23670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (!SafeInterpreter && 23770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman InterpreterSel != RunLLC && 23870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman InterpreterSel != RunJIT) { 23970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel = RunLLC; 24070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeToolArgs.push_back("--relocation-model=pic"); 241197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman SafeInterpreter = AbstractInterpreter::createLLC(Path.c_str(), Message, 24238efa38c864f6d29892d92102c0232b234b526edBill Wendling &SafeToolArgs, 24338efa38c864f6d29892d92102c0232b234b526edBill Wendling &GCCToolArgv); 24470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman } 24570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (!SafeInterpreter) { 24670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeInterpreterSel = AutoPick; 24770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman Message = "Sorry, I can't automatically select an interpreter!\n"; 24870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman } 24970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman break; 25070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman case RunLLC: 25150010429a7c3285dab15ede68acae7231fade367Chris Lattner case RunLLCIA: 25270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman SafeToolArgs.push_back("--relocation-model=pic"); 253197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman SafeInterpreter = AbstractInterpreter::createLLC(Path.c_str(), Message, 25438efa38c864f6d29892d92102c0232b234b526edBill Wendling &SafeToolArgs, 25550010429a7c3285dab15ede68acae7231fade367Chris Lattner &GCCToolArgv, 25650010429a7c3285dab15ede68acae7231fade367Chris Lattner SafeInterpreterSel == RunLLCIA); 25770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman break; 25870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman case RunCBE: 259197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman SafeInterpreter = AbstractInterpreter::createCBE(Path.c_str(), Message, 26038efa38c864f6d29892d92102c0232b234b526edBill Wendling &SafeToolArgs, 26138efa38c864f6d29892d92102c0232b234b526edBill Wendling &GCCToolArgv); 26270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman break; 26370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman case Custom: 264197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman SafeInterpreter = AbstractInterpreter::createCustom(Message, 26570ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman CustomExecCommand); 26670ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman break; 26770ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman default: 26870ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman Message = "Sorry, this back-end is not supported by bugpoint as the " 26970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman "\"safe\" backend right now!\n"; 27070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman break; 2717bb11547e497d7b8fc87f61c1089eee808e3a1eeChris Lattner } 272ac95cc79ac0b899d566cc29c0f646f39c2fa35c0Dan Gohman if (!SafeInterpreter) { outs() << Message << "\nExiting.\n"; exit(1); } 273c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner 274197f728d49fa0cc0baa5aadb2b905fbd8c22a81eDan Gohman gcc = GCC::create(Message, &GCCToolArgv); 275ac95cc79ac0b899d566cc29c0f646f39c2fa35c0Dan Gohman if (!gcc) { outs() << Message << "\nExiting.\n"; exit(1); } 276a259c9be2acc9528ec7feb3cfd51dcde36d87bb3Misha Brukman 2774a10645c70199c8d8567fbc46312158c419720abChris Lattner // If there was an error creating the selected interpreter, quit with error. 2784a10645c70199c8d8567fbc46312158c419720abChris Lattner return Interpreter == 0; 2794a10645c70199c8d8567fbc46312158c419720abChris Lattner} 2804a10645c70199c8d8567fbc46312158c419720abChris Lattner 281ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner/// compileProgram - Try to compile the specified module, throwing an exception 282ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner/// if an error occurs, or returning normally if not. This is used for code 283ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner/// generation crash testing. 284ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner/// 285ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattnervoid BugDriver::compileProgram(Module *M) { 2868ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif // Emit the program to a bitcode file... 28768ccdaa84909108c42417a8091c771598e26456eDaniel Dunbar sys::Path BitcodeFile (OutputPrefix + "-test-program.bc"); 28851c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer std::string ErrMsg; 2898ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif if (BitcodeFile.makeUnique(true,&ErrMsg)) { 29065f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << ToolName << ": Error making unique filename: " << ErrMsg 29165f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman << "\n"; 29251c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer exit(1); 29351c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer } 29474382b7c699120fbec5cb5603c9cf4212eb37f06Chris Lattner if (writeProgramToFile(BitcodeFile.str(), M)) { 29565f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << ToolName << ": Error emitting bitcode to file '" 29674382b7c699120fbec5cb5603c9cf4212eb37f06Chris Lattner << BitcodeFile.str() << "'!\n"; 297ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner exit(1); 298ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner } 299ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner 3008ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif // Remove the temporary bitcode file when we are done. 30186c006a971eb6fab6bd4923ff7ec1c0bc9c28f74Anton Korobeynikov FileRemover BitcodeFileRemover(BitcodeFile, !SaveTemps); 302ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner 303ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner // Actually compile the program! 30474382b7c699120fbec5cb5603c9cf4212eb37f06Chris Lattner Interpreter->compileProgram(BitcodeFile.str()); 305ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner} 306ea9212ca964ff6587227016f86a44160e586a4c8Chris Lattner 3074a10645c70199c8d8567fbc46312158c419720abChris Lattner 3084a10645c70199c8d8567fbc46312158c419720abChris Lattner/// executeProgram - This method runs "Program", capturing the output of the 3094a10645c70199c8d8567fbc46312158c419720abChris Lattner/// program to a file, returning the filename of the file. A recommended 3104a10645c70199c8d8567fbc46312158c419720abChris Lattner/// filename may be optionally specified. 3114a10645c70199c8d8567fbc46312158c419720abChris Lattner/// 3124a10645c70199c8d8567fbc46312158c419720abChris Lattnerstd::string BugDriver::executeProgram(std::string OutputFile, 3138ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif std::string BitcodeFile, 314769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner const std::string &SharedObj, 315c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke AbstractInterpreter *AI, 316c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke bool *ProgramExitedNonzero) { 317769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner if (AI == 0) AI = Interpreter; 318769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner assert(AI && "Interpreter should have been created already!"); 3198ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif bool CreatedBitcode = false; 32051c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer std::string ErrMsg; 3218ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif if (BitcodeFile.empty()) { 3228ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif // Emit the program to a bitcode file... 32368ccdaa84909108c42417a8091c771598e26456eDaniel Dunbar sys::Path uniqueFilename(OutputPrefix + "-test-program.bc"); 32451c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer if (uniqueFilename.makeUnique(true, &ErrMsg)) { 32565f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << ToolName << ": Error making unique filename: " 32665f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman << ErrMsg << "!\n"; 32751c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer exit(1); 32851c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer } 32974382b7c699120fbec5cb5603c9cf4212eb37f06Chris Lattner BitcodeFile = uniqueFilename.str(); 3304a10645c70199c8d8567fbc46312158c419720abChris Lattner 3318ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif if (writeProgramToFile(BitcodeFile, Program)) { 33265f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << ToolName << ": Error emitting bitcode to file '" 33365f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman << BitcodeFile << "'!\n"; 3344a10645c70199c8d8567fbc46312158c419720abChris Lattner exit(1); 3354a10645c70199c8d8567fbc46312158c419720abChris Lattner } 3368ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif CreatedBitcode = true; 3374a10645c70199c8d8567fbc46312158c419720abChris Lattner } 3384a10645c70199c8d8567fbc46312158c419720abChris Lattner 3398ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif // Remove the temporary bitcode file when we are done. 3408ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif sys::Path BitcodePath (BitcodeFile); 34186c006a971eb6fab6bd4923ff7ec1c0bc9c28f74Anton Korobeynikov FileRemover BitcodeFileRemover(BitcodePath, CreatedBitcode && !SaveTemps); 3429709272675feaca030cce14d0f5eb7f342b3fc1dChris Lattner 34368ccdaa84909108c42417a8091c771598e26456eDaniel Dunbar if (OutputFile.empty()) OutputFile = OutputPrefix + "-execution-output"; 3445073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 3454a10645c70199c8d8567fbc46312158c419720abChris Lattner // Check to see if this is a valid output filename... 34697182985d530dbef488696c95a39c14fe56c995bReid Spencer sys::Path uniqueFile(OutputFile); 34751c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer if (uniqueFile.makeUnique(true, &ErrMsg)) { 34865f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << ToolName << ": Error making unique filename: " 34965f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman << ErrMsg << "\n"; 35051c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer exit(1); 35151c5a286bae5ad27ddc49602f44b7ea7253a4cc9Reid Spencer } 35274382b7c699120fbec5cb5603c9cf4212eb37f06Chris Lattner OutputFile = uniqueFile.str(); 3534a10645c70199c8d8567fbc46312158c419720abChris Lattner 354769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner // Figure out which shared objects to run, if any. 3557dac658792425c10274594782d6fcf10208a16f0Chris Lattner std::vector<std::string> SharedObjs(AdditionalSOs); 356769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner if (!SharedObj.empty()) 357769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner SharedObjs.push_back(SharedObj); 358769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner 35970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman int RetVal = AI->ExecuteProgram(BitcodeFile, InputArgv, InputFile, 36070ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman OutputFile, AdditionalLinkerArgs, SharedObjs, 36170ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman Timeout, MemoryLimit); 3627d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner 3637d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner if (RetVal == -1) { 36465f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << "<timeout>"; 3657d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner static bool FirstTimeout = true; 3667d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner if (FirstTimeout) { 367ac95cc79ac0b899d566cc29c0f646f39c2fa35c0Dan Gohman outs() << "\n" 3687d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner "*** Program execution timed out! This mechanism is designed to handle\n" 3697d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner " programs stuck in infinite loops gracefully. The -timeout option\n" 3707d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner " can be used to change the timeout threshold or disable it completely\n" 3717d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner " (with -timeout=0). This message is only displayed once.\n"; 3727d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner FirstTimeout = false; 3737d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner } 3747d91e49ff7bcc0fd10a54d45a6185bb05adf3d20Chris Lattner } 375769f1fe6728ffb5627ae0cedc392576d6e701a5aChris Lattner 3765e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer if (AppendProgramExitCode) { 3775e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer std::ofstream outFile(OutputFile.c_str(), std::ios_base::app); 3785e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer outFile << "exit " << RetVal << '\n'; 3795e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer outFile.close(); 3805e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer } 3815e1452c856a8bcf39ab7a67a5af946c8162f942dReid Spencer 382c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke if (ProgramExitedNonzero != 0) 383c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke *ProgramExitedNonzero = (RetVal != 0); 3844a10645c70199c8d8567fbc46312158c419720abChris Lattner 3854a10645c70199c8d8567fbc46312158c419720abChris Lattner // Return the filename we captured the output to. 3864a10645c70199c8d8567fbc46312158c419720abChris Lattner return OutputFile; 3874a10645c70199c8d8567fbc46312158c419720abChris Lattner} 3884a10645c70199c8d8567fbc46312158c419720abChris Lattner 38970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman/// executeProgramSafely - Used to create reference output with the "safe" 390c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke/// backend, if reference output is not provided. 391c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke/// 39270ef449741da8b1ef035e04a55958652a0200ba1Dan Gohmanstd::string BugDriver::executeProgramSafely(std::string OutputFile) { 393c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke bool ProgramExitedNonzero; 39470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman std::string outFN = executeProgram(OutputFile, "", "", SafeInterpreter, 395c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke &ProgramExitedNonzero); 396c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke return outFN; 397c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke} 3985073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 3998ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greifstd::string BugDriver::compileSharedObject(const std::string &BitcodeFile) { 4005073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman assert(Interpreter && "Interpreter should have been created already!"); 401c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner sys::Path OutputFile; 4025073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 40370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman // Using the known-good backend. 40470ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman GCC::FileType FT = SafeInterpreter->OutputCode(BitcodeFile, OutputFile); 4055073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 406a0f5b15e1eb8642d92b3141a6b88a5729ea979dcChris Lattner std::string SharedObjectFile; 40774382b7c699120fbec5cb5603c9cf4212eb37f06Chris Lattner if (gcc->MakeSharedObject(OutputFile.str(), FT, 408130e2a361147a31ae631d3648afdd95a5c0d40f2Chris Lattner SharedObjectFile, AdditionalLinkerArgs)) 409a0f5b15e1eb8642d92b3141a6b88a5729ea979dcChris Lattner exit(1); 4105073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 4115073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman // Remove the intermediate C file 412c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattner OutputFile.eraseFromDisk(); 4135073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 4146ebe44d22f6dd1ab9f7aa1f3cfd02be52145d535Chris Lattner return "./" + SharedObjectFile; 4155073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman} 4165073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 4176a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// createReferenceFile - calls compileProgram and then records the output 4186a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// into ReferenceOutputFile. Returns true if reference file created, false 4196a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// otherwise. Note: initializeExecutionEnvironment should be called BEFORE 4206a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// this function. 4216a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// 422c600f3c337f18c62116ac58b701e4f7ae6d2fb1aChris Lattnerbool BugDriver::createReferenceFile(Module *M, const std::string &Filename) { 4236a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins try { 4246a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins compileProgram(Program); 425d41b30def3181bce4bf87e8bde664d15663165d0Jeff Cohen } catch (ToolExecutionError &) { 4266a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins return false; 4276a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins } 4286a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins try { 42970ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman ReferenceOutputFile = executeProgramSafely(Filename); 430ac95cc79ac0b899d566cc29c0f646f39c2fa35c0Dan Gohman outs() << "\nReference output is: " << ReferenceOutputFile << "\n\n"; 4316a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins } catch (ToolExecutionError &TEE) { 43265f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << TEE.what(); 43370ef449741da8b1ef035e04a55958652a0200ba1Dan Gohman if (Interpreter != SafeInterpreter) { 43465f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << "*** There is a bug running the \"safe\" backend. Either" 43565f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman << " debug it (for example with the -run-cbe bugpoint option," 43665f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman << " if CBE is being used as the \"safe\" backend), or fix the" 43765f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman << " error some other way.\n"; 4386a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins } 4396a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins return false; 4406a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins } 4416a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins return true; 4426a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins} 4435073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman 4446a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// diffProgram - This method executes the specified module and diffs the 4456a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// output against the file specified by ReferenceOutputFile. If the output 4466a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// is different, true is returned. If there is a problem with the code 4476a3f31cb707972ebde1e45a61fa8f5bcff132ebaPatrick Jenkins/// generator (e.g., llc crashes), this will throw an exception. 4484a10645c70199c8d8567fbc46312158c419720abChris Lattner/// 4498ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greifbool BugDriver::diffProgram(const std::string &BitcodeFile, 4505073336cd4da5df4ae13a167582d1dc90f32e4e0Misha Brukman const std::string &SharedObject, 4518ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif bool RemoveBitcode) { 452c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke bool ProgramExitedNonzero; 453c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke 4544a10645c70199c8d8567fbc46312158c419720abChris Lattner // Execute the program, generating an output file... 4558ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif sys::Path Output(executeProgram("", BitcodeFile, SharedObject, 0, 4565f76760c880e6d61c229d2058c5699b033caeae1Reid Spencer &ProgramExitedNonzero)); 457c5cad211d6ec50fe90a0a716dee701c6c4721385Brian Gaeke 45865f62790d6e3e7f7ceb9cd12a7a51a66d95a3b03Chris Lattner std::string Error; 4594a10645c70199c8d8567fbc46312158c419720abChris Lattner bool FilesDifferent = false; 460a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner if (int Diff = DiffFilesWithTolerance(sys::Path(ReferenceOutputFile), 46174382b7c699120fbec5cb5603c9cf4212eb37f06Chris Lattner sys::Path(Output.str()), 462a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner AbsTolerance, RelTolerance, &Error)) { 463a328c51bb99666ee0c045a57ea6d6ce2b0198f9bChris Lattner if (Diff == 2) { 46465f57c233cd4499e2e8b52a503201e64edfd6a9eDan Gohman errs() << "While diffing output: " << Error << '\n'; 46565f62790d6e3e7f7ceb9cd12a7a51a66d95a3b03Chris Lattner exit(1); 46665f62790d6e3e7f7ceb9cd12a7a51a66d95a3b03Chris Lattner } 46765f62790d6e3e7f7ceb9cd12a7a51a66d95a3b03Chris Lattner FilesDifferent = true; 46865f62790d6e3e7f7ceb9cd12a7a51a66d95a3b03Chris Lattner } 46980becf194d56524e8c75618ac57a34520f87a684David Goodwin else { 47080becf194d56524e8c75618ac57a34520f87a684David Goodwin // Remove the generated output if there are no differences. 47180becf194d56524e8c75618ac57a34520f87a684David Goodwin Output.eraseFromDisk(); 47280becf194d56524e8c75618ac57a34520f87a684David Goodwin } 4734a10645c70199c8d8567fbc46312158c419720abChris Lattner 4748ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif // Remove the bitcode file if we are supposed to. 4758ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif if (RemoveBitcode) 4768ff70c2635bfd4e02c0140a5dc9ca909fffba35aGabor Greif sys::Path(BitcodeFile).eraseFromDisk(); 4774a10645c70199c8d8567fbc46312158c419720abChris Lattner return FilesDifferent; 4784a10645c70199c8d8567fbc46312158c419720abChris Lattner} 47991eabc13d3a456cc4b387d3d7fdb041d976732c7Misha Brukman 48091eabc13d3a456cc4b387d3d7fdb041d976732c7Misha Brukmanbool BugDriver::isExecutingJIT() { 48191eabc13d3a456cc4b387d3d7fdb041d976732c7Misha Brukman return InterpreterSel == RunJIT; 48291eabc13d3a456cc4b387d3d7fdb041d976732c7Misha Brukman} 483d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 484