1 //===-- Sparc.h - Top-level interface for Sparc representation --*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file contains the entry points for global functions defined in the LLVM
10 // Sparc back-end.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_LIB_TARGET_SPARC_SPARC_H
15 #define LLVM_LIB_TARGET_SPARC_SPARC_H
16 
17 #include "MCTargetDesc/SparcMCTargetDesc.h"
18 #include "llvm/Support/ErrorHandling.h"
19 #include "llvm/Target/TargetMachine.h"
20 
21 namespace llvm {
22   class FunctionPass;
23   class SparcTargetMachine;
24   class AsmPrinter;
25   class MCInst;
26   class MachineInstr;
27 
28   FunctionPass *createSparcISelDag(SparcTargetMachine &TM);
29   FunctionPass *createSparcDelaySlotFillerPass();
30 
31   void LowerSparcMachineInstrToMCInst(const MachineInstr *MI,
32                                       MCInst &OutMI,
33                                       AsmPrinter &AP);
34 } // end namespace llvm;
35 
36 namespace llvm {
37   // Enums corresponding to Sparc condition codes, both icc's and fcc's.  These
38   // values must be kept in sync with the ones in the .td file.
39   namespace SPCC {
40     enum CondCodes {
41       ICC_A   =  8   ,  // Always
42       ICC_N   =  0   ,  // Never
43       ICC_NE  =  9   ,  // Not Equal
44       ICC_E   =  1   ,  // Equal
45       ICC_G   = 10   ,  // Greater
46       ICC_LE  =  2   ,  // Less or Equal
47       ICC_GE  = 11   ,  // Greater or Equal
48       ICC_L   =  3   ,  // Less
49       ICC_GU  = 12   ,  // Greater Unsigned
50       ICC_LEU =  4   ,  // Less or Equal Unsigned
51       ICC_CC  = 13   ,  // Carry Clear/Great or Equal Unsigned
52       ICC_CS  =  5   ,  // Carry Set/Less Unsigned
53       ICC_POS = 14   ,  // Positive
54       ICC_NEG =  6   ,  // Negative
55       ICC_VC  = 15   ,  // Overflow Clear
56       ICC_VS  =  7   ,  // Overflow Set
57 
58       FCC_A   =  8+16,  // Always
59       FCC_N   =  0+16,  // Never
60       FCC_U   =  7+16,  // Unordered
61       FCC_G   =  6+16,  // Greater
62       FCC_UG  =  5+16,  // Unordered or Greater
63       FCC_L   =  4+16,  // Less
64       FCC_UL  =  3+16,  // Unordered or Less
65       FCC_LG  =  2+16,  // Less or Greater
66       FCC_NE  =  1+16,  // Not Equal
67       FCC_E   =  9+16,  // Equal
68       FCC_UE  = 10+16,  // Unordered or Equal
69       FCC_GE  = 11+16,  // Greater or Equal
70       FCC_UGE = 12+16,  // Unordered or Greater or Equal
71       FCC_LE  = 13+16,  // Less or Equal
72       FCC_ULE = 14+16,  // Unordered or Less or Equal
73       FCC_O   = 15+16,  // Ordered
74 
75       CPCC_A   =  8+32,  // Always
76       CPCC_N   =  0+32,  // Never
77       CPCC_3   =  7+32,
78       CPCC_2   =  6+32,
79       CPCC_23  =  5+32,
80       CPCC_1   =  4+32,
81       CPCC_13  =  3+32,
82       CPCC_12  =  2+32,
83       CPCC_123 =  1+32,
84       CPCC_0   =  9+32,
85       CPCC_03  = 10+32,
86       CPCC_02  = 11+32,
87       CPCC_023 = 12+32,
88       CPCC_01  = 13+32,
89       CPCC_013 = 14+32,
90       CPCC_012 = 15+32
91     };
92   }
93 
SPARCCondCodeToString(SPCC::CondCodes CC)94   inline static const char *SPARCCondCodeToString(SPCC::CondCodes CC) {
95     switch (CC) {
96     case SPCC::ICC_A:   return "a";
97     case SPCC::ICC_N:   return "n";
98     case SPCC::ICC_NE:  return "ne";
99     case SPCC::ICC_E:   return "e";
100     case SPCC::ICC_G:   return "g";
101     case SPCC::ICC_LE:  return "le";
102     case SPCC::ICC_GE:  return "ge";
103     case SPCC::ICC_L:   return "l";
104     case SPCC::ICC_GU:  return "gu";
105     case SPCC::ICC_LEU: return "leu";
106     case SPCC::ICC_CC:  return "cc";
107     case SPCC::ICC_CS:  return "cs";
108     case SPCC::ICC_POS: return "pos";
109     case SPCC::ICC_NEG: return "neg";
110     case SPCC::ICC_VC:  return "vc";
111     case SPCC::ICC_VS:  return "vs";
112     case SPCC::FCC_A:   return "a";
113     case SPCC::FCC_N:   return "n";
114     case SPCC::FCC_U:   return "u";
115     case SPCC::FCC_G:   return "g";
116     case SPCC::FCC_UG:  return "ug";
117     case SPCC::FCC_L:   return "l";
118     case SPCC::FCC_UL:  return "ul";
119     case SPCC::FCC_LG:  return "lg";
120     case SPCC::FCC_NE:  return "ne";
121     case SPCC::FCC_E:   return "e";
122     case SPCC::FCC_UE:  return "ue";
123     case SPCC::FCC_GE:  return "ge";
124     case SPCC::FCC_UGE: return "uge";
125     case SPCC::FCC_LE:  return "le";
126     case SPCC::FCC_ULE: return "ule";
127     case SPCC::FCC_O:   return "o";
128     case SPCC::CPCC_A:   return "a";
129     case SPCC::CPCC_N:   return "n";
130     case SPCC::CPCC_3:   return "3";
131     case SPCC::CPCC_2:   return "2";
132     case SPCC::CPCC_23:  return "23";
133     case SPCC::CPCC_1:   return "1";
134     case SPCC::CPCC_13:  return "13";
135     case SPCC::CPCC_12:  return "12";
136     case SPCC::CPCC_123: return "123";
137     case SPCC::CPCC_0:   return "0";
138     case SPCC::CPCC_03:  return "03";
139     case SPCC::CPCC_02:  return "02";
140     case SPCC::CPCC_023: return "023";
141     case SPCC::CPCC_01:  return "01";
142     case SPCC::CPCC_013: return "013";
143     case SPCC::CPCC_012: return "012";
144     }
145     llvm_unreachable("Invalid cond code");
146   }
147 
HI22(int64_t imm)148   inline static unsigned HI22(int64_t imm) {
149     return (unsigned)((imm >> 10) & ((1 << 22)-1));
150   }
151 
LO10(int64_t imm)152   inline static unsigned LO10(int64_t imm) {
153     return (unsigned)(imm & 0x3FF);
154   }
155 
HIX22(int64_t imm)156   inline static unsigned HIX22(int64_t imm) {
157     return HI22(~imm);
158   }
159 
LOX10(int64_t imm)160   inline static unsigned LOX10(int64_t imm) {
161     return ~LO10(~imm);
162   }
163 
164 }  // end namespace llvm
165 #endif
166