lib/Target/PowerPC/PPCPredicates.h

   1 //===-- PPCPredicates.h - PPC Branch Predicate Information ------*- C++ -*-===//
   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 describes the PowerPC branch predicates.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_TARGET_POWERPC_PPCPREDICATES_H
  15 #define LLVM_TARGET_POWERPC_PPCPREDICATES_H
  16
  17 #include "PPC.h"
  18
  19 namespace llvm {
  20 namespace PPC {
  21   /// Predicate - These are "(BI << 5) | BO"  for various predicates.
  22   enum Predicate {
  23     PRED_ALWAYS = (0 << 5) | 20,
  24     PRED_LT     = (0 << 5) | 12,
  25     PRED_LE     = (1 << 5) |  4,
  26     PRED_EQ     = (2 << 5) | 12,
  27     PRED_GE     = (0 << 5) |  4,
  28     PRED_GT     = (1 << 5) | 12,
  29     PRED_NE     = (2 << 5) |  4,
  30     PRED_UN     = (3 << 5) | 12,
  31     PRED_NU     = (3 << 5) |  4
  32   };
  33
  34   /// Invert the specified predicate.  != -> ==, < -> >=.
  35   Predicate InvertPredicate(Predicate Opcode);
  36 }
  37 }
  38
  39 #endif