1337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner//===- fpcmp.cpp - A fuzzy "cmp" that permits floating point noise --------===// 23da94aec4d429b2ba0f65fa040c33650cade196bMisha Brukman// 3337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner// The LLVM Compiler Infrastructure 4337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner// 53060910e290949a9ac5eda8726d030790c4d60ffChris Lattner// This file is distributed under the University of Illinois Open Source 63060910e290949a9ac5eda8726d030790c4d60ffChris Lattner// License. See LICENSE.TXT for details. 73da94aec4d429b2ba0f65fa040c33650cade196bMisha Brukman// 8337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner//===----------------------------------------------------------------------===// 9337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner// 10337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner// fpcmp is a tool that basically works like the 'cmp' tool, except that it can 11537a49a85ae676b345d1e28e552377b500b996bfChris Lattner// tolerate errors due to floating point noise, with the -r and -a options. 12337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner// 13337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner//===----------------------------------------------------------------------===// 14337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner 15551ccae044b0ff658fe629dd67edd5ffe75d10e8Reid Spencer#include "llvm/Support/CommandLine.h" 16537a49a85ae676b345d1e28e552377b500b996bfChris Lattner#include "llvm/Support/FileUtilities.h" 178f10915145c77a807f620b0c9ccc86de53702f2cDaniel Dunbar#include "llvm/Support/raw_ostream.h" 18337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattnerusing namespace llvm; 19337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner 20337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattnernamespace { 21337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner cl::opt<std::string> 22337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner File1(cl::Positional, cl::desc("<input file #1>"), cl::Required); 23337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner cl::opt<std::string> 24337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner File2(cl::Positional, cl::desc("<input file #2>"), cl::Required); 25337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner 26337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner cl::opt<double> 27337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner RelTolerance("r", cl::desc("Relative error tolerated"), cl::init(0)); 28337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner cl::opt<double> 29337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner AbsTolerance("a", cl::desc("Absolute error tolerated"), cl::init(0)); 30337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner} 31337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner 32337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattnerint main(int argc, char **argv) { 33337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner cl::ParseCommandLineOptions(argc, argv); 34337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner 35537a49a85ae676b345d1e28e552377b500b996bfChris Lattner std::string ErrorMsg; 36bbf97ea7d5832922b3c40b67701b5719bfcb772bRafael Espindola int DF = DiffFilesWithTolerance(File1, File2, AbsTolerance, RelTolerance, 37bbf97ea7d5832922b3c40b67701b5719bfcb772bRafael Espindola &ErrorMsg); 38537a49a85ae676b345d1e28e552377b500b996bfChris Lattner if (!ErrorMsg.empty()) 398f10915145c77a807f620b0c9ccc86de53702f2cDaniel Dunbar errs() << argv[0] << ": " << ErrorMsg << "\n"; 40537a49a85ae676b345d1e28e552377b500b996bfChris Lattner return DF; 41337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner} 42337481a07eccde47e8cfcb539c6c350307e5f036Chris Lattner 43