1 //===- lib/MC/MCSectionWasm.cpp - Wasm Code Section Representation --------===//
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 //===----------------------------------------------------------------------===//
10 #include "llvm/MC/MCSectionWasm.h"
11 #include "llvm/MC/MCAsmInfo.h"
12 #include "llvm/MC/MCExpr.h"
13 #include "llvm/MC/MCSymbol.h"
14 #include "llvm/Support/raw_ostream.h"
18 MCSectionWasm::~MCSectionWasm() {} // anchor.
20 // Decides whether a '.section' directive
21 // should be printed before the section name.
22 bool MCSectionWasm::ShouldOmitSectionDirective(StringRef Name,
23 const MCAsmInfo &MAI) const {
24 return MAI.shouldOmitSectionDirective(Name);
27 static void printName(raw_ostream &OS, StringRef Name) {
28 if (Name.find_first_not_of("0123456789_."
29 "abcdefghijklmnopqrstuvwxyz"
30 "ABCDEFGHIJKLMNOPQRSTUVWXYZ") == Name.npos) {
35 for (const char *B = Name.begin(), *E = Name.end(); B < E; ++B) {
36 if (*B == '"') // Unquoted "
38 else if (*B != '\\') // Neither " or backslash
40 else if (B + 1 == E) // Trailing backslash
43 OS << B[0] << B[1]; // Quoted character
50 void MCSectionWasm::PrintSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
52 const MCExpr *Subsection) const {
54 if (ShouldOmitSectionDirective(SectionName, MAI)) {
55 OS << '\t' << getSectionName();
58 Subsection->print(OS, &MAI);
65 printName(OS, getSectionName());
68 // TODO: Print section flags.
74 // If comment string is '@', e.g. as on ARM - use '%' instead
75 if (MAI.getCommentString()[0] == '@')
80 // TODO: Print section type.
83 OS << ",unique," << UniqueID;
88 OS << "\t.subsection\t";
89 Subsection->print(OS, &MAI);
94 bool MCSectionWasm::UseCodeAlign() const { return false; }
96 bool MCSectionWasm::isVirtualSection() const { return false; }