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AsmWriter/Bitcode: MDGlobalVariable

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229020 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith 2015-02-13 01:35:40 +00:00
parent 8921bbca59
commit fbc547da81
8 changed files with 127 additions and 10 deletions
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3
include/llvm/Bitcode/LLVMBitCodes.h
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@ -161,7 +161,8 @@ namespace bitc {
METADATA_LEXICAL_BLOCK_FILE=23,//[distinct, scope, file, discriminator]
METADATA_NAMESPACE = 24, // [distinct, scope, file, name, line]
METADATA_TEMPLATE_TYPE = 25, // [distinct, scope, name, type, ...]
METADATA_TEMPLATE_VALUE= 26 // [distinct, scope, name, type, value, ...]
METADATA_TEMPLATE_VALUE= 26, // [distinct, scope, name, type, value, ...]
METADATA_GLOBAL_VAR = 27 // [distinct, ...]
};
// The constants block (CONSTANTS_BLOCK_ID) describes emission for each

4
include/llvm/IR/DebugInfoMetadata.h
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@ -1243,6 +1243,8 @@ public:
Metadata *getFile() const { return getOperand(2); }
Metadata *getType() const { return getOperand(3); }
MDString *getRawName() const { return getOperandAs<MDString>(1); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == MDLocalVariableKind ||
MD->getMetadataID() == MDGlobalVariableKind;
@ -1315,6 +1317,8 @@ public:
Metadata *getVariable() const { return getOperand(6); }
Metadata *getStaticDataMemberDeclaration() const { return getOperand(7); }
MDString *getRawLinkageName() const { return getOperandAs<MDString>(5); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == MDGlobalVariableKind;
}

26
lib/AsmParser/LLParser.cpp
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@ -3548,9 +3548,33 @@ bool LLParser::ParseMDTemplateValueParameter(MDNode *&Result, bool IsDistinct) {
return false;
}
/// ParseMDGlobalVariable:
/// ::= !MDGlobalVariable(scope: !0, name: "foo", linkageName: "foo",
/// file: !1, line: 7, type: !2, isLocal: false,
/// isDefinition: true, variable: i32* @foo,
/// declaration: !3)
bool LLParser::ParseMDGlobalVariable(MDNode *&Result, bool IsDistinct) {
return TokError("unimplemented parser");
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
OPTIONAL(scope, MDField, ); \
REQUIRED(name, MDStringField, ); \
OPTIONAL(linkageName, MDStringField, ); \
OPTIONAL(file, MDField, ); \
OPTIONAL(line, LineField, ); \
OPTIONAL(type, MDField, ); \
OPTIONAL(isLocal, MDBoolField, ); \
OPTIONAL(isDefinition, MDBoolField, (true)); \
OPTIONAL(variable, MDConstant, ); \
OPTIONAL(declaration, MDField, );
PARSE_MD_FIELDS();
#undef VISIT_MD_FIELDS
Result = GET_OR_DISTINCT(MDGlobalVariable,
(Context, scope.Val, name.Val, linkageName.Val,
file.Val, line.Val, type.Val, isLocal.Val,
isDefinition.Val, variable.Val, declaration.Val));
return false;
}
bool LLParser::ParseMDLocalVariable(MDNode *&Result, bool IsDistinct) {
return TokError("unimplemented parser");
}

14
lib/Bitcode/Reader/BitcodeReader.cpp
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@ -1525,6 +1525,20 @@ std::error_code BitcodeReader::ParseMetadata() {
NextMDValueNo++);
break;
}
case bitc::METADATA_GLOBAL_VAR: {
if (Record.size() != 11)
return Error("Invalid record");
MDValueList.AssignValue(
GET_OR_DISTINCT(MDGlobalVariable, Record[0],
(Context, getMDOrNull(Record[1]),
getMDString(Record[2]), getMDString(Record[3]),
getMDOrNull(Record[4]), Record[5],
getMDOrNull(Record[6]), Record[7], Record[8],
getMDOrNull(Record[9]), getMDOrNull(Record[10]))),
NextMDValueNo++);
break;
}
case bitc::METADATA_STRING: {
std::string String(Record.begin(), Record.end());
llvm::UpgradeMDStringConstant(String);

24
lib/Bitcode/Writer/BitcodeWriter.cpp
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@ -1051,11 +1051,27 @@ static void WriteMDTemplateValueParameter(const MDTemplateValueParameter *N,
Record.clear();
}
static void WriteMDGlobalVariable(const MDGlobalVariable *,
const ValueEnumerator &, BitstreamWriter &,
SmallVectorImpl<uint64_t> &, unsigned) {
llvm_unreachable("write not implemented");
static void WriteMDGlobalVariable(const MDGlobalVariable *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->getRawName()));
Record.push_back(VE.getMetadataOrNullID(N->getRawLinkageName()));
Record.push_back(VE.getMetadataOrNullID(N->getFile()));
Record.push_back(N->getLine());
Record.push_back(VE.getMetadataOrNullID(N->getType()));
Record.push_back(N->isLocalToUnit());
Record.push_back(N->isDefinition());
Record.push_back(VE.getMetadataOrNullID(N->getVariable()));
Record.push_back(VE.getMetadataOrNullID(N->getStaticDataMemberDeclaration()));
Stream.EmitRecord(bitc::METADATA_GLOBAL_VAR, Record, Abbrev);
Record.clear();
}
static void WriteMDLocalVariable(const MDLocalVariable *,
const ValueEnumerator &, BitstreamWriter &,
SmallVectorImpl<uint64_t> &, unsigned) {

40
lib/IR/AsmWriter.cpp
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@ -1711,11 +1711,43 @@ static void writeMDTemplateValueParameter(raw_ostream &Out,
Out << ")";
}
static void writeMDGlobalVariable(raw_ostream &, const MDGlobalVariable *,
TypePrinting *, SlotTracker *,
const Module *) {
llvm_unreachable("write not implemented");
static void writeMDGlobalVariable(raw_ostream &Out, const MDGlobalVariable *N,
TypePrinting *TypePrinter,
SlotTracker *Machine, const Module *Context) {
Out << "!MDGlobalVariable(";
FieldSeparator FS;
Out << FS << "scope: ";
writeMetadataAsOperand(Out, N->getScope(), TypePrinter, Machine, Context);
Out << FS << "name: \"" << N->getName() << "\"";
if (!N->getLinkageName().empty())
Out << FS << "linkageName: \"" << N->getLinkageName() << "\"";
if (N->getFile()) {
Out << FS << "file: ";
writeMetadataAsOperand(Out, N->getFile(), TypePrinter, Machine,
Context);
}
if (N->getLine())
Out << FS << "line: " << N->getLine();
if (N->getType()) {
Out << FS << "type: ";
writeMetadataAsOperand(Out, N->getType(), TypePrinter, Machine,
Context);
}
Out << FS << "isLocal: " << (N->isLocalToUnit() ? "true" : "false");
Out << FS << "isDefinition: " << (N->isDefinition() ? "true" : "false");
if (N->getVariable()) {
Out << FS << "variable: ";
writeMetadataAsOperand(Out, N->getVariable(), TypePrinter, Machine,
Context);
}
if (N->getStaticDataMemberDeclaration()) {
Out << FS << "declaration: ";
writeMetadataAsOperand(Out, N->getStaticDataMemberDeclaration(),
TypePrinter, Machine, Context);
}
Out << ")";
}
static void writeMDLocalVariable(raw_ostream &, const MDLocalVariable *,
TypePrinting *, SlotTracker *,
const Module *) {

4
test/Assembler/invalid-mdglobalvariable-missing-name.ll Normal file
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@ -0,0 +1,4 @@
; RUN: not llvm-as < %s -disable-output 2>&1 | FileCheck %s
; CHECK: <stdin>:[[@LINE+1]]:42: error: missing required field 'name'
!0 = !MDGlobalVariable(linkageName: "foo")

22
test/Assembler/mdglobalvariable.ll Normal file
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@ -0,0 +1,22 @@
; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s
; RUN: verify-uselistorder %s
@foo = global i32 0
; CHECK: !named = !{!0, !1, !2, !3, !4, !5, !6}
!named = !{!0, !1, !2, !3, !4, !5, !6}
!0 = distinct !{}
!1 = !{!"path/to/file", !"/path/to/dir"}
!2 = !MDFile(filename: "path/to/file", directory: "/path/to/dir")
!3 = distinct !{}
!4 = distinct !{}
; CHECK: !5 = !MDGlobalVariable(scope: !0, name: "foo", linkageName: "foo", file: !1, line: 7, type: !3, isLocal: true, isDefinition: false, variable: i32* @foo, declaration: !4)
!5 = !MDGlobalVariable(scope: !0, name: "foo", linkageName: "foo",
file: !1, line: 7, type: !3, isLocal: true,
isDefinition: false, variable: i32* @foo,
declaration: !4)
; CHECK: !6 = !MDGlobalVariable(scope: null, name: "bar", isLocal: false, isDefinition: true)
!6 = !MDGlobalVariable(name: "bar")