1 //==-- WebAssemblyTargetStreamer.cpp - WebAssembly Target Streamer Methods --=//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// \brief This file defines WebAssembly-specific target streamer classes.
12 /// These are for implementing support for target-specific assembly directives.
14 //===----------------------------------------------------------------------===//
16 #include "WebAssemblyTargetStreamer.h"
17 #include "InstPrinter/WebAssemblyInstPrinter.h"
18 #include "WebAssemblyMCTargetDesc.h"
19 #include "WebAssemblyTargetObjectFile.h"
20 #include "llvm/MC/MCContext.h"
21 #include "llvm/MC/MCSectionELF.h"
22 #include "llvm/MC/MCSubtargetInfo.h"
23 #include "llvm/MC/MCSymbolELF.h"
24 #include "llvm/Support/CommandLine.h"
25 #include "llvm/Support/ELF.h"
26 #include "llvm/Support/ErrorHandling.h"
27 #include "llvm/Support/FormattedStream.h"
30 WebAssemblyTargetStreamer::WebAssemblyTargetStreamer(MCStreamer &S)
31 : MCTargetStreamer(S) {}
33 WebAssemblyTargetAsmStreamer::WebAssemblyTargetAsmStreamer(
34 MCStreamer &S, formatted_raw_ostream &OS)
35 : WebAssemblyTargetStreamer(S), OS(OS) {}
37 WebAssemblyTargetELFStreamer::WebAssemblyTargetELFStreamer(MCStreamer &S)
38 : WebAssemblyTargetStreamer(S) {}
40 static void PrintTypes(formatted_raw_ostream &OS, ArrayRef<MVT> Types) {
42 for (MVT Type : Types) {
47 OS << WebAssembly::TypeToString(Type);
52 void WebAssemblyTargetAsmStreamer::emitParam(ArrayRef<MVT> Types) {
54 PrintTypes(OS, Types);
57 void WebAssemblyTargetAsmStreamer::emitResult(ArrayRef<MVT> Types) {
59 PrintTypes(OS, Types);
62 void WebAssemblyTargetAsmStreamer::emitLocal(ArrayRef<MVT> Types) {
64 PrintTypes(OS, Types);
67 void WebAssemblyTargetAsmStreamer::emitEndFunc() { OS << "\t.endfunc\n"; }
69 // FIXME: What follows is not the real binary encoding.
71 static void EncodeTypes(MCStreamer &Streamer, ArrayRef<MVT> Types) {
72 Streamer.EmitIntValue(Types.size(), sizeof(uint64_t));
73 for (MVT Type : Types)
74 Streamer.EmitIntValue(Type.SimpleTy, sizeof(uint64_t));
77 void WebAssemblyTargetELFStreamer::emitParam(ArrayRef<MVT> Types) {
78 Streamer.EmitIntValue(WebAssembly::DotParam, sizeof(uint64_t));
79 EncodeTypes(Streamer, Types);
82 void WebAssemblyTargetELFStreamer::emitResult(ArrayRef<MVT> Types) {
83 Streamer.EmitIntValue(WebAssembly::DotResult, sizeof(uint64_t));
84 EncodeTypes(Streamer, Types);
87 void WebAssemblyTargetELFStreamer::emitLocal(ArrayRef<MVT> Types) {
88 Streamer.EmitIntValue(WebAssembly::DotLocal, sizeof(uint64_t));
89 EncodeTypes(Streamer, Types);
92 void WebAssemblyTargetELFStreamer::emitEndFunc() {
93 Streamer.EmitIntValue(WebAssembly::DotEndFunc, sizeof(uint64_t));