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AsmWriter/Bitcode: MDImportedEntity

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229025 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith 2015-02-13 01:46:02 +00:00
parent 3bfa8d00ae
commit 6a390dc584
9 changed files with 91 additions and 10 deletions
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3
include/llvm/Bitcode/LLVMBitCodes.h
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@ -165,7 +165,8 @@ namespace bitc {
METADATA_GLOBAL_VAR = 27, // [distinct, ...]
METADATA_LOCAL_VAR = 28, // [distinct, ...]
METADATA_EXPRESSION = 29, // [distinct, n x element]
METADATA_OBJC_PROPERTY = 30 // [distinct, name, file, line, ...]
METADATA_OBJC_PROPERTY = 30, // [distinct, name, file, line, ...]
METADATA_IMPORTED_ENTITY=31 // [distinct, tag, scope, entity, line, name]
};
// The constants block (CONSTANTS_BLOCK_ID) describes emission for each

2
include/llvm/IR/DebugInfoMetadata.h
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@ -1626,6 +1626,8 @@ public:
Metadata *getEntity() 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() == MDImportedEntityKind;
}

17
lib/AsmParser/LLParser.cpp
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@ -3658,9 +3658,24 @@ bool LLParser::ParseMDObjCProperty(MDNode *&Result, bool IsDistinct) {
return false;
}
/// ParseMDImportedEntity:
/// ::= !MDImportedEntity(tag: DW_TAG_imported_module, scope: !0, entity: !1,
/// line: 7, name: "foo")
bool LLParser::ParseMDImportedEntity(MDNode *&Result, bool IsDistinct) {
return TokError("unimplemented parser");
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
REQUIRED(tag, DwarfTagField, ); \
REQUIRED(scope, MDField, ); \
OPTIONAL(entity, MDField, ); \
OPTIONAL(line, LineField, ); \
OPTIONAL(name, MDStringField, );
PARSE_MD_FIELDS();
#undef VISIT_MD_FIELDS
Result = GET_OR_DISTINCT(MDImportedEntity, (Context, tag.Val, scope.Val,
entity.Val, line.Val, name.Val));
return false;
}
#undef PARSE_MD_FIELD
#undef NOP_FIELD
#undef REQUIRE_FIELD

12
lib/Bitcode/Reader/BitcodeReader.cpp
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@ -1575,6 +1575,18 @@ std::error_code BitcodeReader::ParseMetadata() {
NextMDValueNo++);
break;
}
case bitc::METADATA_IMPORTED_ENTITY: {
if (Record.size() != 6)
return Error("Invalid record");
MDValueList.AssignValue(
GET_OR_DISTINCT(MDImportedEntity, Record[0],
(Context, Record[1], getMDOrNull(Record[2]),
getMDOrNull(Record[3]), Record[4],
getMDString(Record[5]))),
NextMDValueNo++);
break;
}
case bitc::METADATA_STRING: {
std::string String(Record.begin(), Record.end());
llvm::UpgradeMDStringConstant(String);

18
lib/Bitcode/Writer/BitcodeWriter.cpp
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@ -1124,10 +1124,20 @@ static void WriteMDObjCProperty(const MDObjCProperty *N,
Record.clear();
}
static void WriteMDImportedEntity(const MDImportedEntity *,
const ValueEnumerator &, BitstreamWriter &,
SmallVectorImpl<uint64_t> &, unsigned) {
llvm_unreachable("write not implemented");
static void WriteMDImportedEntity(const MDImportedEntity *N,
const ValueEnumerator &VE,
BitstreamWriter &Stream,
SmallVectorImpl<uint64_t> &Record,
unsigned Abbrev) {
Record.push_back(N->isDistinct());
Record.push_back(N->getTag());
Record.push_back(VE.getMetadataOrNullID(N->getScope()));
Record.push_back(VE.getMetadataOrNullID(N->getEntity()));
Record.push_back(N->getLine());
Record.push_back(VE.getMetadataOrNullID(N->getRawName()));
Stream.EmitRecord(bitc::METADATA_IMPORTED_ENTITY, Record, Abbrev);
Record.clear();
}
static void WriteModuleMetadata(const Module *M,

21
lib/IR/AsmWriter.cpp
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@ -1827,12 +1827,25 @@ static void writeMDObjCProperty(raw_ostream &Out, const MDObjCProperty *N,
Out << ")";
}
static void writeMDImportedEntity(raw_ostream &, const MDImportedEntity *,
TypePrinting *, SlotTracker *,
const Module *) {
llvm_unreachable("write not implemented");
static void writeMDImportedEntity(raw_ostream &Out, const MDImportedEntity *N,
TypePrinting *TypePrinter,
SlotTracker *Machine, const Module *Context) {
Out << "!MDImportedEntity(";
FieldSeparator FS;
writeTag(Out, FS, N);
Out << FS << "scope: ";
writeMetadataAsOperand(Out, N->getScope(), TypePrinter, Machine, Context);
if (N->getEntity()) {
Out << FS << "entity: ";
writeMetadataAsOperand(Out, N->getEntity(), TypePrinter, Machine, Context);
}
if (N->getLine())
Out << FS << "line: " << N->getLine();
Out << FS << "name: \"" << N->getName() << "\"";
Out << ")";
}
static void WriteMDNodeBodyInternal(raw_ostream &Out, const MDNode *Node,
TypePrinting *TypePrinter,
SlotTracker *Machine,

4
test/Assembler/invalid-mdimportedentity-missing-parent.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]]:51: error: missing required field 'scope'
!3 = !MDImportedEntity(tag: DW_TAG_imported_module)

4
test/Assembler/invalid-mdimportedentity-missing-tag.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]]:33: error: missing required field 'tag'
!3 = !MDImportedEntity(scope: !0)

20
test/Assembler/mdimportedentity.ll Normal file
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@ -0,0 +1,20 @@
; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s
; RUN: verify-uselistorder %s
; CHECK: !named = !{!0, !1, !2, !3, !3}
!named = !{!0, !1, !2, !3, !4}
; CHECK: !0 = distinct !{}
; CHECK-NEXT: !1 = distinct !{}
!0 = distinct !{}
!1 = distinct !{}
; CHECK-NEXT: !2 = !MDImportedEntity(tag: DW_TAG_imported_module, scope: !0, entity: !1, line: 7, name: "foo")
!2 = !MDImportedEntity(tag: DW_TAG_imported_module, scope: !0, entity: !1,
line: 7, name: "foo")
; CHECK-NEXT: !3 = !MDImportedEntity(tag: DW_TAG_imported_module, scope: !0, name: "")
!3 = !MDImportedEntity(tag: DW_TAG_imported_module, scope: !0)
!4 = !MDImportedEntity(tag: DW_TAG_imported_module, scope: !0, entity: null,
line: 0, name: "")