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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 namespace llvm {
18 namespace PPC {
19   /// Predicate - These are "(BI << 5) | BO"  for various predicates.
20   enum Predicate {
21     PRED_ALWAYS = (0 << 5) | 20,
22     PRED_LT     = (0 << 5) | 12,
23     PRED_LE     = (1 << 5) |  4,
24     PRED_EQ     = (2 << 5) | 12,
25     PRED_GE     = (0 << 5) |  4,
26     PRED_GT     = (1 << 5) | 12,
27     PRED_NE     = (2 << 5) |  4,
28     PRED_UN     = (3 << 5) | 12,
29     PRED_NU     = (3 << 5) |  4
30   };
31 
32   /// Invert the specified predicate.  != -> ==, < -> >=.
33   Predicate InvertPredicate(Predicate Opcode);
34 }
35 }
36 
37 #endif
38