1//===-- PPCPredicates.cpp - PPC Branch Predicate Information --------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file implements the PowerPC branch predicates. 11// 12//===----------------------------------------------------------------------===// 13 14#include "PPCPredicates.h" 15#include "llvm/Support/ErrorHandling.h" 16#include <cassert> 17using namespace llvm; 18 19PPC::Predicate PPC::InvertPredicate(PPC::Predicate Opcode) { 20 switch (Opcode) { 21 default: llvm_unreachable("Unknown PPC branch opcode!"); 22 case PPC::PRED_EQ: return PPC::PRED_NE; 23 case PPC::PRED_NE: return PPC::PRED_EQ; 24 case PPC::PRED_LT: return PPC::PRED_GE; 25 case PPC::PRED_GE: return PPC::PRED_LT; 26 case PPC::PRED_GT: return PPC::PRED_LE; 27 case PPC::PRED_LE: return PPC::PRED_GT; 28 case PPC::PRED_NU: return PPC::PRED_UN; 29 case PPC::PRED_UN: return PPC::PRED_NU; 30 } 31} 32