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