1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
//===---- MipsCCState.h - CCState with Mips specific extensions -----------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef MIPSCCSTATE_H
#define MIPSCCSTATE_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/CodeGen/CallingConvLower.h"
#include "MipsISelLowering.h"
namespace llvm {
class SDNode;
class MipsSubtarget;
class MipsCCState : public CCState {
public:
enum SpecialCallingConvType { Mips16RetHelperConv, NoSpecialCallingConv };
/// Determine the SpecialCallingConvType for the given callee
static SpecialCallingConvType
getSpecialCallingConvForCallee(const SDNode *Callee,
const MipsSubtarget &Subtarget);
private:
/// Identify lowered values that originated from f128 arguments and record
/// this for use by RetCC_MipsN.
void PreAnalyzeCallResultForF128(const SmallVectorImpl<ISD::InputArg> &Ins,
const TargetLowering::CallLoweringInfo &CLI);
/// Identify lowered values that originated from f128 arguments and record
/// this for use by RetCC_MipsN.
void PreAnalyzeReturnForF128(const SmallVectorImpl<ISD::OutputArg> &Outs);
/// Identify lowered values that originated from f128 arguments and record
/// this.
void
PreAnalyzeCallOperands(const SmallVectorImpl<ISD::OutputArg> &Outs,
std::vector<TargetLowering::ArgListEntry> &FuncArgs,
const SDNode *CallNode);
/// Identify lowered values that originated from f128 arguments and record
/// this.
void
PreAnalyzeFormalArgumentsForF128(const SmallVectorImpl<ISD::InputArg> &Ins);
/// Records whether the value has been lowered from an f128.
SmallVector<bool, 4> OriginalArgWasF128;
/// Records whether the value has been lowered from float.
SmallVector<bool, 4> OriginalArgWasFloat;
/// Records whether the value was a fixed argument.
/// See ISD::OutputArg::IsFixed,
SmallVector<bool, 4> CallOperandIsFixed;
// Used to handle MIPS16-specific calling convention tweaks.
// FIXME: This should probably be a fully fledged calling convention.
SpecialCallingConvType SpecialCallingConv;
public:
MipsCCState(CallingConv::ID CC, bool isVarArg, MachineFunction &MF,
const TargetMachine &TM, SmallVectorImpl<CCValAssign> &locs,
LLVMContext &C,
SpecialCallingConvType SpecialCC = NoSpecialCallingConv)
: CCState(CC, isVarArg, MF, TM, locs, C), SpecialCallingConv(SpecialCC) {}
void
AnalyzeCallOperands(const SmallVectorImpl<ISD::OutputArg> &Outs,
CCAssignFn Fn,
std::vector<TargetLowering::ArgListEntry> &FuncArgs,
const SDNode *CallNode) {
PreAnalyzeCallOperands(Outs, FuncArgs, CallNode);
CCState::AnalyzeCallOperands(Outs, Fn);
OriginalArgWasF128.clear();
OriginalArgWasFloat.clear();
CallOperandIsFixed.clear();
}
// The AnalyzeCallOperands in the base class is not usable since we must
// provide a means of accessing ArgListEntry::IsFixed. Delete them from this
// class. This doesn't stop them being used via the base class though.
void AnalyzeCallOperands(const SmallVectorImpl<ISD::OutputArg> &Outs,
CCAssignFn Fn) LLVM_DELETED_FUNCTION;
void AnalyzeCallOperands(const SmallVectorImpl<MVT> &Outs,
SmallVectorImpl<ISD::ArgFlagsTy> &Flags,
CCAssignFn Fn) LLVM_DELETED_FUNCTION;
void AnalyzeFormalArguments(const SmallVectorImpl<ISD::InputArg> &Ins,
CCAssignFn Fn) {
PreAnalyzeFormalArgumentsForF128(Ins);
CCState::AnalyzeFormalArguments(Ins, Fn);
OriginalArgWasFloat.clear();
OriginalArgWasF128.clear();
}
void AnalyzeCallResult(const SmallVectorImpl<ISD::InputArg> &Ins,
CCAssignFn Fn,
const TargetLowering::CallLoweringInfo &CLI) {
PreAnalyzeCallResultForF128(Ins, CLI);
CCState::AnalyzeCallResult(Ins, Fn);
OriginalArgWasFloat.clear();
OriginalArgWasF128.clear();
}
void AnalyzeReturn(const SmallVectorImpl<ISD::OutputArg> &Outs,
CCAssignFn Fn) {
PreAnalyzeReturnForF128(Outs);
CCState::AnalyzeReturn(Outs, Fn);
OriginalArgWasFloat.clear();
OriginalArgWasF128.clear();
}
bool CheckReturn(const SmallVectorImpl<ISD::OutputArg> &ArgsFlags,
CCAssignFn Fn) {
PreAnalyzeReturnForF128(ArgsFlags);
bool Return = CCState::CheckReturn(ArgsFlags, Fn);
OriginalArgWasFloat.clear();
OriginalArgWasF128.clear();
return Return;
}
bool WasOriginalArgF128(unsigned ValNo) { return OriginalArgWasF128[ValNo]; }
bool WasOriginalArgFloat(unsigned ValNo) {
return OriginalArgWasFloat[ValNo];
}
bool IsCallOperandFixed(unsigned ValNo) { return CallOperandIsFixed[ValNo]; }
SpecialCallingConvType getSpecialCallingConv() { return SpecialCallingConv; }
};
}
#endif
|
