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"
15 #include "llvm/Support/FormattedStream.h"
16 #include "llvm/Support/RISCVAttributes.h"
17
18 using namespace llvm;
19
RISCVTargetStreamer(MCStreamer & S)20 RISCVTargetStreamer::RISCVTargetStreamer(MCStreamer &S) : MCTargetStreamer(S) {}
21
finish()22 void RISCVTargetStreamer::finish() { finishAttributeSection(); }
23
emitDirectiveOptionPush()24 void RISCVTargetStreamer::emitDirectiveOptionPush() {}
emitDirectiveOptionPop()25 void RISCVTargetStreamer::emitDirectiveOptionPop() {}
emitDirectiveOptionPIC()26 void RISCVTargetStreamer::emitDirectiveOptionPIC() {}
emitDirectiveOptionNoPIC()27 void RISCVTargetStreamer::emitDirectiveOptionNoPIC() {}
emitDirectiveOptionRVC()28 void RISCVTargetStreamer::emitDirectiveOptionRVC() {}
emitDirectiveOptionNoRVC()29 void RISCVTargetStreamer::emitDirectiveOptionNoRVC() {}
emitDirectiveOptionRelax()30 void RISCVTargetStreamer::emitDirectiveOptionRelax() {}
emitDirectiveOptionNoRelax()31 void RISCVTargetStreamer::emitDirectiveOptionNoRelax() {}
emitAttribute(unsigned Attribute,unsigned Value)32 void RISCVTargetStreamer::emitAttribute(unsigned Attribute, unsigned Value) {}
finishAttributeSection()33 void RISCVTargetStreamer::finishAttributeSection() {}
emitTextAttribute(unsigned Attribute,StringRef String)34 void RISCVTargetStreamer::emitTextAttribute(unsigned Attribute,
35 StringRef String) {}
emitIntTextAttribute(unsigned Attribute,unsigned IntValue,StringRef StringValue)36 void RISCVTargetStreamer::emitIntTextAttribute(unsigned Attribute,
37 unsigned IntValue,
38 StringRef StringValue) {}
39
emitTargetAttributes(const MCSubtargetInfo & STI)40 void RISCVTargetStreamer::emitTargetAttributes(const MCSubtargetInfo &STI) {
41 if (STI.hasFeature(RISCV::FeatureRV32E))
42 emitAttribute(RISCVAttrs::STACK_ALIGN, RISCVAttrs::ALIGN_4);
43 else
44 emitAttribute(RISCVAttrs::STACK_ALIGN, RISCVAttrs::ALIGN_16);
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 if (STI.hasFeature(RISCV::FeatureStdExtB))
64 Arch += "_b0p93";
65 if (STI.hasFeature(RISCV::FeatureStdExtV))
66 Arch += "_v0p10";
67 if (STI.hasFeature(RISCV::FeatureExtZfh))
68 Arch += "_zfh0p1";
69 if (STI.hasFeature(RISCV::FeatureExtZba))
70 Arch += "_zba0p93";
71 if (STI.hasFeature(RISCV::FeatureExtZbb))
72 Arch += "_zbb0p93";
73 if (STI.hasFeature(RISCV::FeatureExtZbc))
74 Arch += "_zbc0p93";
75 if (STI.hasFeature(RISCV::FeatureExtZbe))
76 Arch += "_zbe0p93";
77 if (STI.hasFeature(RISCV::FeatureExtZbf))
78 Arch += "_zbf0p93";
79 if (STI.hasFeature(RISCV::FeatureExtZbm))
80 Arch += "_zbm0p93";
81 if (STI.hasFeature(RISCV::FeatureExtZbp))
82 Arch += "_zbp0p93";
83 if (STI.hasFeature(RISCV::FeatureExtZbproposedc))
84 Arch += "_zbproposedc0p93";
85 if (STI.hasFeature(RISCV::FeatureExtZbr))
86 Arch += "_zbr0p93";
87 if (STI.hasFeature(RISCV::FeatureExtZbs))
88 Arch += "_zbs0p93";
89 if (STI.hasFeature(RISCV::FeatureExtZbt))
90 Arch += "_zbt0p93";
91 if (STI.hasFeature(RISCV::FeatureExtZvamo))
92 Arch += "_zvamo0p10";
93 if (STI.hasFeature(RISCV::FeatureStdExtZvlsseg))
94 Arch += "_zvlsseg0p10";
95
96 emitTextAttribute(RISCVAttrs::ARCH, Arch);
97 }
98
99 // This part is for ascii assembly output
RISCVTargetAsmStreamer(MCStreamer & S,formatted_raw_ostream & OS)100 RISCVTargetAsmStreamer::RISCVTargetAsmStreamer(MCStreamer &S,
101 formatted_raw_ostream &OS)
102 : RISCVTargetStreamer(S), OS(OS) {}
103
emitDirectiveOptionPush()104 void RISCVTargetAsmStreamer::emitDirectiveOptionPush() {
105 OS << "\t.option\tpush\n";
106 }
107
emitDirectiveOptionPop()108 void RISCVTargetAsmStreamer::emitDirectiveOptionPop() {
109 OS << "\t.option\tpop\n";
110 }
111
emitDirectiveOptionPIC()112 void RISCVTargetAsmStreamer::emitDirectiveOptionPIC() {
113 OS << "\t.option\tpic\n";
114 }
115
emitDirectiveOptionNoPIC()116 void RISCVTargetAsmStreamer::emitDirectiveOptionNoPIC() {
117 OS << "\t.option\tnopic\n";
118 }
119
emitDirectiveOptionRVC()120 void RISCVTargetAsmStreamer::emitDirectiveOptionRVC() {
121 OS << "\t.option\trvc\n";
122 }
123
emitDirectiveOptionNoRVC()124 void RISCVTargetAsmStreamer::emitDirectiveOptionNoRVC() {
125 OS << "\t.option\tnorvc\n";
126 }
127
emitDirectiveOptionRelax()128 void RISCVTargetAsmStreamer::emitDirectiveOptionRelax() {
129 OS << "\t.option\trelax\n";
130 }
131
emitDirectiveOptionNoRelax()132 void RISCVTargetAsmStreamer::emitDirectiveOptionNoRelax() {
133 OS << "\t.option\tnorelax\n";
134 }
135
emitAttribute(unsigned Attribute,unsigned Value)136 void RISCVTargetAsmStreamer::emitAttribute(unsigned Attribute, unsigned Value) {
137 OS << "\t.attribute\t" << Attribute << ", " << Twine(Value) << "\n";
138 }
139
emitTextAttribute(unsigned Attribute,StringRef String)140 void RISCVTargetAsmStreamer::emitTextAttribute(unsigned Attribute,
141 StringRef String) {
142 OS << "\t.attribute\t" << Attribute << ", \"" << String << "\"\n";
143 }
144
emitIntTextAttribute(unsigned Attribute,unsigned IntValue,StringRef StringValue)145 void RISCVTargetAsmStreamer::emitIntTextAttribute(unsigned Attribute,
146 unsigned IntValue,
147 StringRef StringValue) {}
148
finishAttributeSection()149 void RISCVTargetAsmStreamer::finishAttributeSection() {}
150