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AsmWriter/Bitcode: MDNamespace

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llvm-svn: 229018
This commit is contained in:
Duncan P. N. Exon Smith 2015-02-13 01:32:09 +00:00
parent affacdfc5b
commit c96d92ad70
8 changed files with 80 additions and 9 deletions
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3
include/llvm/Bitcode/LLVMBitCodes.h
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@ -158,7 +158,8 @@ namespace bitc {
METADATA_COMPILE_UNIT = 20, // [distinct, ...]
METADATA_SUBPROGRAM = 21, // [distinct, ...]
METADATA_LEXICAL_BLOCK = 22, // [distinct, scope, file, line, column]
METADATA_LEXICAL_BLOCK_FILE=23// [distinct, scope, file, discriminator]
METADATA_LEXICAL_BLOCK_FILE=23,//[distinct, scope, file, discriminator]
METADATA_NAMESPACE = 24 // [distinct, scope, file, name, line]
};
// The constants block (CONSTANTS_BLOCK_ID) describes emission for each

2
include/llvm/IR/DebugInfoMetadata.h
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@ -1104,6 +1104,8 @@ public:
Metadata *getScope() const { return getOperand(1); }
StringRef getName() const { return getStringOperand(2); }
MDString *getRawName() const { return getOperandAs<MDString>(2); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == MDNamespaceKind;
}

15
lib/AsmParser/LLParser.cpp
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@ -3497,9 +3497,22 @@ bool LLParser::ParseMDLexicalBlockFile(MDNode *&Result, bool IsDistinct) {
return false;
}
/// ParseMDNamespace:
/// ::= !MDNamespace(scope: !0, file: !2, name: "SomeNamespace", line: 9)
bool LLParser::ParseMDNamespace(MDNode *&Result, bool IsDistinct) {
return TokError("unimplemented parser");
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
REQUIRED(scope, MDField, ); \
OPTIONAL(file, MDField, ); \
OPTIONAL(name, MDStringField, ); \
OPTIONAL(line, LineField, );
PARSE_MD_FIELDS();
#undef VISIT_MD_FIELDS
Result = GET_OR_DISTINCT(MDNamespace,
(Context, scope.Val, file.Val, name.Val, line.Val));
return false;
}
bool LLParser::ParseMDTemplateTypeParameter(MDNode *&Result, bool IsDistinct) {
return TokError("unimplemented parser");
}

12
lib/Bitcode/Reader/BitcodeReader.cpp
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@ -1490,6 +1490,18 @@ std::error_code BitcodeReader::ParseMetadata() {
NextMDValueNo++);
break;
}
case bitc::METADATA_NAMESPACE: {
if (Record.size() != 5)
return Error("Invalid record");
MDValueList.AssignValue(
GET_OR_DISTINCT(MDNamespace, Record[0],
(Context, getMDOrNull(Record[1]),
getMDOrNull(Record[2]), getMDString(Record[3]),
Record[4])),
NextMDValueNo++);
break;
}
case bitc::METADATA_STRING: {
std::string String(Record.begin(), Record.end());
llvm::UpgradeMDStringConstant(String);

17
lib/Bitcode/Writer/BitcodeWriter.cpp
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@ -1007,11 +1007,20 @@ static void WriteMDLexicalBlockFile(const MDLexicalBlockFile *N,
Record.clear();
}
static void WriteMDNamespace(const MDNamespace *, const ValueEnumerator &,
BitstreamWriter &, SmallVectorImpl<uint64_t> &,
unsigned) {
llvm_unreachable("write not implemented");
static void WriteMDNamespace(const MDNamespace *N, const ValueEnumerator &VE,
BitstreamWriter &Stream,
SmallVectorImpl<uint64_t> &Record,
unsigned Abbrev) {
Record.push_back(N->isDistinct());
Record.push_back(VE.getMetadataOrNullID(N->getScope()));
Record.push_back(VE.getMetadataOrNullID(N->getFile()));
Record.push_back(VE.getMetadataOrNullID(N->getRawName()));
Record.push_back(N->getLine());
Stream.EmitRecord(bitc::METADATA_NAMESPACE, Record, Abbrev);
Record.clear();
}
static void WriteMDTemplateTypeParameter(const MDTemplateTypeParameter *,
const ValueEnumerator &,
BitstreamWriter &,

20
lib/IR/AsmWriter.cpp
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@ -1660,10 +1660,24 @@ static void writeMDLexicalBlockFile(raw_ostream &Out,
Out << ")";
}
static void writeMDNamespace(raw_ostream &, const MDNamespace *, TypePrinting *,
SlotTracker *, const Module *) {
llvm_unreachable("write not implemented");
static void writeMDNamespace(raw_ostream &Out, const MDNamespace *N,
TypePrinting *TypePrinter, SlotTracker *Machine,
const Module *Context) {
Out << "!MDNamespace(";
FieldSeparator FS;
Out << FS << "scope: ";
writeMetadataAsOperand(Out, N->getScope(), TypePrinter, Machine, Context);
if (N->getFile()) {
Out << FS << "file: ";
writeMetadataAsOperand(Out, N->getFile(), TypePrinter, Machine, Context);
}
if (!N->getName().empty())
Out << FS << "name: \"" << N->getName() << "\"";
if (N->getLine())
Out << FS << "line: " << N->getLine();
Out << ")";
}
static void writeMDTemplateTypeParameter(raw_ostream &,
const MDTemplateTypeParameter *,
TypePrinting *, SlotTracker *,

4
test/Assembler/invalid-mdnamespace-missing-namespace.ll Normal file
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@ -0,0 +1,4 @@
; RUN: not llvm-as < %s -disable-output 2>&1 | FileCheck %s
; CHECK: [[@LINE+1]]:36: error: missing required field 'scope'
!0 = !MDNamespace(name: "Namespace")

16
test/Assembler/mdnamespace.ll Normal file
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@ -0,0 +1,16 @@
; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s
; RUN: verify-uselistorder %s
; CHECK: !named = !{!0, !1, !2, !3, !4, !4}
!named = !{!0, !1, !2, !3, !4, !5}
!0 = distinct !{}
!1 = !{!"path/to/file", !"/path/to/dir"}
!2 = !MDFile(filename: "path/to/file", directory: "/path/to/dir")
; CHECK: !3 = !MDNamespace(scope: !0, file: !2, name: "Namespace", line: 7)
!3 = !MDNamespace(scope: !0, file: !2, name: "Namespace", line: 7)
; CHECK: !4 = !MDNamespace(scope: !0)
!4 = !MDNamespace(scope: !0, file: null, name: "", line: 0)
!5 = !MDNamespace(scope: !0)