/Users/buildslave/jenkins/sharedspace/clang-stage2-coverage-R@2/llvm/lib/MC/MCSectionWasm.cpp
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1 | | //===- lib/MC/MCSectionWasm.cpp - Wasm Code Section Representation --------===// |
2 | | // |
3 | | // The LLVM Compiler Infrastructure |
4 | | // |
5 | | // This file is distributed under the University of Illinois Open Source |
6 | | // License. See LICENSE.TXT for details. |
7 | | // |
8 | | //===----------------------------------------------------------------------===// |
9 | | |
10 | | #include "llvm/MC/MCSectionWasm.h" |
11 | | #include "llvm/MC/MCAsmInfo.h" |
12 | | #include "llvm/MC/MCContext.h" |
13 | | #include "llvm/MC/MCExpr.h" |
14 | | #include "llvm/MC/MCSymbol.h" |
15 | | #include "llvm/Support/raw_ostream.h" |
16 | | |
17 | | using namespace llvm; |
18 | | |
19 | 0 | MCSectionWasm::~MCSectionWasm() {} // anchor. |
20 | | |
21 | | // Decides whether a '.section' directive |
22 | | // should be printed before the section name. |
23 | | bool MCSectionWasm::ShouldOmitSectionDirective(StringRef Name, |
24 | 0 | const MCAsmInfo &MAI) const { |
25 | 0 | return MAI.shouldOmitSectionDirective(Name); |
26 | 0 | } |
27 | | |
28 | 0 | static void printName(raw_ostream &OS, StringRef Name) { |
29 | 0 | if (Name.find_first_not_of("0123456789_." |
30 | 0 | "abcdefghijklmnopqrstuvwxyz" |
31 | 0 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ") == Name.npos) { |
32 | 0 | OS << Name; |
33 | 0 | return; |
34 | 0 | } |
35 | 0 | OS << '"'; |
36 | 0 | for (const char *B = Name.begin(), *E = Name.end(); B < E0 ; ++B0 ) { |
37 | 0 | if (*B == '"') // Unquoted " |
38 | 0 | OS << "\\\""; |
39 | 0 | else if (0 *B != '\\'0 ) // Neither " or backslash |
40 | 0 | OS << *B; |
41 | 0 | else if (0 B + 1 == E0 ) // Trailing backslash |
42 | 0 | OS << "\\\\"; |
43 | 0 | else { |
44 | 0 | OS << B[0] << B[1]; // Quoted character |
45 | 0 | ++B; |
46 | 0 | } |
47 | 0 | } |
48 | 0 | OS << '"'; |
49 | 0 | } |
50 | | |
51 | | void MCSectionWasm::PrintSwitchToSection(const MCAsmInfo &MAI, const Triple &T, |
52 | | raw_ostream &OS, |
53 | 0 | const MCExpr *Subsection) const { |
54 | 0 |
|
55 | 0 | if (ShouldOmitSectionDirective(SectionName, MAI)0 ) { |
56 | 0 | OS << '\t' << getSectionName(); |
57 | 0 | if (Subsection0 ) { |
58 | 0 | OS << '\t'; |
59 | 0 | Subsection->print(OS, &MAI); |
60 | 0 | } |
61 | 0 | OS << '\n'; |
62 | 0 | return; |
63 | 0 | } |
64 | 0 |
|
65 | 0 | OS << "\t.section\t"; |
66 | 0 | printName(OS, getSectionName()); |
67 | 0 | OS << ",\""; |
68 | 0 |
|
69 | 0 | // TODO: Print section flags. |
70 | 0 |
|
71 | 0 | OS << '"'; |
72 | 0 |
|
73 | 0 | OS << ','; |
74 | 0 |
|
75 | 0 | // If comment string is '@', e.g. as on ARM - use '%' instead |
76 | 0 | if (MAI.getCommentString()[0] == '@') |
77 | 0 | OS << '%'; |
78 | 0 | else |
79 | 0 | OS << '@'; |
80 | 0 |
|
81 | 0 | // TODO: Print section type. |
82 | 0 |
|
83 | 0 | if (isUnique()) |
84 | 0 | OS << ",unique," << UniqueID; |
85 | 0 |
|
86 | 0 | OS << '\n'; |
87 | 0 |
|
88 | 0 | if (Subsection0 ) { |
89 | 0 | OS << "\t.subsection\t"; |
90 | 0 | Subsection->print(OS, &MAI); |
91 | 0 | OS << '\n'; |
92 | 0 | } |
93 | 0 | } |
94 | | |
95 | 0 | bool MCSectionWasm::UseCodeAlign() const { return false; } |
96 | | |
97 | 0 | bool MCSectionWasm::isVirtualSection() const { return false; } |