| Chris Lattner | df4ed63 | 2006-11-17 22:10:59 +0000 | [diff] [blame^] | 1 | //===-- PPCPredicates.cpp - PPC Branch Predicate Information --------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file was developed by Chris Lattner and is distributed under |
| 6 | // the University of Illinois Open Source 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 <cassert> |
| 16 | using namespace llvm; |
| 17 | |
| 18 | PPC::Predicate PPC::InvertPredicate(PPC::Predicate Opcode) { |
| 19 | switch (Opcode) { |
| 20 | default: assert(0 && "Unknown PPC branch opcode!"); |
| 21 | case PPC::PRED_EQ: return PPC::PRED_NE; |
| 22 | case PPC::PRED_NE: return PPC::PRED_EQ; |
| 23 | case PPC::PRED_LT: return PPC::PRED_GE; |
| 24 | case PPC::PRED_GE: return PPC::PRED_LT; |
| 25 | case PPC::PRED_GT: return PPC::PRED_LE; |
| 26 | case PPC::PRED_LE: return PPC::PRED_GT; |
| 27 | case PPC::PRED_NU: return PPC::PRED_UN; |
| 28 | case PPC::PRED_UN: return PPC::PRED_NU; |
| 29 | } |
| 30 | } |