LLVM  12.0.0git
RISCVTargetStreamer.cpp
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1 //===-- RISCVTargetStreamer.cpp - RISCV Target Streamer Methods -----------===//
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 provides RISCV specific target streamer methods.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "RISCVTargetStreamer.h"
14 #include "RISCVMCTargetDesc.h"
17 
18 using namespace llvm;
19 
21 
23 
35  StringRef String) {}
37  unsigned IntValue,
38  StringRef StringValue) {}
39 
41  if (STI.hasFeature(RISCV::FeatureRV32E))
43  else
45 
46  std::string Arch = "rv32";
47  if (STI.hasFeature(RISCV::Feature64Bit))
48  Arch = "rv64";
49  if (STI.hasFeature(RISCV::FeatureRV32E))
50  Arch += "e1p9";
51  else
52  Arch += "i2p0";
53  if (STI.hasFeature(RISCV::FeatureStdExtM))
54  Arch += "_m2p0";
55  if (STI.hasFeature(RISCV::FeatureStdExtA))
56  Arch += "_a2p0";
57  if (STI.hasFeature(RISCV::FeatureStdExtF))
58  Arch += "_f2p0";
59  if (STI.hasFeature(RISCV::FeatureStdExtD))
60  Arch += "_d2p0";
61  if (STI.hasFeature(RISCV::FeatureStdExtC))
62  Arch += "_c2p0";
63 
65 }
66 
67 // This part is for ascii assembly output
70  : RISCVTargetStreamer(S), OS(OS) {}
71 
73  OS << "\t.option\tpush\n";
74 }
75 
77  OS << "\t.option\tpop\n";
78 }
79 
81  OS << "\t.option\tpic\n";
82 }
83 
85  OS << "\t.option\tnopic\n";
86 }
87 
89  OS << "\t.option\trvc\n";
90 }
91 
93  OS << "\t.option\tnorvc\n";
94 }
95 
97  OS << "\t.option\trelax\n";
98 }
99 
101  OS << "\t.option\tnorelax\n";
102 }
103 
104 void RISCVTargetAsmStreamer::emitAttribute(unsigned Attribute, unsigned Value) {
105  OS << "\t.attribute\t" << Attribute << ", " << Twine(Value) << "\n";
106 }
107 
108 void RISCVTargetAsmStreamer::emitTextAttribute(unsigned Attribute,
109  StringRef String) {
110  OS << "\t.attribute\t" << Attribute << ", \"" << String << "\"\n";
111 }
112 
113 void RISCVTargetAsmStreamer::emitIntTextAttribute(unsigned Attribute,
114  unsigned IntValue,
115  StringRef StringValue) {}
116 
117 void RISCVTargetAsmStreamer::finishAttributeSection() {}
This class represents lattice values for constants.
Definition: AllocatorList.h:23
formatted_raw_ostream - A raw_ostream that wraps another one and keeps track of line and column posit...
Target specific streamer interface.
Definition: MCStreamer.h:92
virtual void emitTextAttribute(unsigned Attribute, StringRef String)
Twine - A lightweight data structure for efficiently representing the concatenation of temporary valu...
Definition: Twine.h:80
virtual void emitIntTextAttribute(unsigned Attribute, unsigned IntValue, StringRef StringValue)
RISCVTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS)
Streaming machine code generation interface.
Definition: MCStreamer.h:198
void emitTargetAttributes(const MCSubtargetInfo &STI)
virtual void emitAttribute(unsigned Attribute, unsigned Value)
virtual void emitDirectiveOptionNoRelax()
bool hasFeature(unsigned Feature) const
Generic base class for all target subtargets.
LLVM Value Representation.
Definition: Value.h:75
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:57