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 // GCC #defines PPC on Linux but we use it as our namespace name 18 #undef PPC 19 20 // Generated files will use "namespace PPC". To avoid symbol clash, 21 // undefine PPC here. PPC may be predefined on some hosts. 22 #undef PPC 23 24 namespace llvm { 25 namespace PPC { 26 /// Predicate - These are "(BI << 5) | BO" for various predicates. 27 enum Predicate { 28 PRED_ALWAYS = (0 << 5) | 20, 29 PRED_LT = (0 << 5) | 12, 30 PRED_LE = (1 << 5) | 4, 31 PRED_EQ = (2 << 5) | 12, 32 PRED_GE = (0 << 5) | 4, 33 PRED_GT = (1 << 5) | 12, 34 PRED_NE = (2 << 5) | 4, 35 PRED_UN = (3 << 5) | 12, 36 PRED_NU = (3 << 5) | 4 37 }; 38 39 /// Invert the specified predicate. != -> ==, < -> >=. 40 Predicate InvertPredicate(Predicate Opcode); 41 } 42 } 43 44 #endif 45