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