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AsmWriter/Bitcode: MDEnumerator 

llvm-svn: 229004
This commit is contained in:
Duncan P. N. Exon Smith 2015-02-13 01:14:11 +00:00
parent c7363f1147
commit 8775476419
9 changed files with 60 additions and 10 deletions
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3
llvm/include/llvm/Bitcode/LLVMBitCodes.h
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@ -148,7 +148,8 @@ namespace bitc {
METADATA_NAMED_NODE = 10, // NAMED_NODE: [n x mdnodes]
METADATA_ATTACHMENT = 11, // [m x [value, [n x [id, mdnode]]]
METADATA_GENERIC_DEBUG = 12, // [distinct, tag, vers, header, n x md num]
METADATA_SUBRANGE = 13 // [distinct, count, lo]
METADATA_SUBRANGE = 13, // [distinct, count, lo]
METADATA_ENUMERATOR = 14 // [distinct, value, name?]
};
// The constants block (CONSTANTS_BLOCK_ID) describes emission for each

2
llvm/include/llvm/IR/DebugInfoMetadata.h
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@ -309,6 +309,8 @@ public:
int64_t getValue() const { return Value; }
StringRef getName() const { return getStringOperand(0); }
MDString *getRawName() const { return getOperandAs<MDString>(0); }
static bool classof(const Metadata *MD) {
return MD->getMetadataID() == MDEnumeratorKind;
}

12
llvm/lib/AsmParser/LLParser.cpp
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@ -3181,9 +3181,19 @@ bool LLParser::ParseMDSubrange(MDNode *&Result, bool IsDistinct) {
return false;
}
/// ParseMDEnumerator:
/// ::= !MDEnumerator(value: 30, name: "SomeKind")
bool LLParser::ParseMDEnumerator(MDNode *&Result, bool IsDistinct) {
return TokError("unimplemented parser");
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
REQUIRED(value, MDSignedField, ); \
REQUIRED(name, MDStringField, );
PARSE_MD_FIELDS();
#undef VISIT_MD_FIELDS
Result = GET_OR_DISTINCT(MDEnumerator, (Context, value.Val, name.Val));
return false;
}
bool LLParser::ParseMDBasicType(MDNode *&Result, bool IsDistinct) {
return TokError("unimplemented parser");
}

10
llvm/lib/Bitcode/Reader/BitcodeReader.cpp
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@ -1361,6 +1361,16 @@ std::error_code BitcodeReader::ParseMetadata() {
NextMDValueNo++);
break;
}
case bitc::METADATA_ENUMERATOR: {
if (Record.size() != 3)
return Error("Invalid record");
MDValueList.AssignValue(GET_OR_DISTINCT(MDEnumerator, Record[0],
(Context, unrotateSign(Record[1]),
getMDString(Record[2]))),
NextMDValueNo++);
break;
}
case bitc::METADATA_STRING: {
std::string String(Record.begin(), Record.end());
llvm::UpgradeMDStringConstant(String);

15
llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
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@ -826,11 +826,18 @@ static void WriteMDSubrange(const MDSubrange *N, const ValueEnumerator &,
Record.clear();
}
static void WriteMDEnumerator(const MDEnumerator *, const ValueEnumerator &,
BitstreamWriter &, SmallVectorImpl<uint64_t> &,
unsigned) {
llvm_unreachable("write not implemented");
static void WriteMDEnumerator(const MDEnumerator *N, const ValueEnumerator &VE,
BitstreamWriter &Stream,
SmallVectorImpl<uint64_t> &Record,
unsigned Abbrev) {
Record.push_back(N->isDistinct());
Record.push_back(rotateSign(N->getValue()));
Record.push_back(VE.getMetadataOrNullID(N->getRawName()));
Stream.EmitRecord(bitc::METADATA_ENUMERATOR, Record, Abbrev);
Record.clear();
}
static void WriteMDBasicType(const MDBasicType *, const ValueEnumerator &,
BitstreamWriter &, SmallVectorImpl<uint64_t> &,
unsigned) {

9
llvm/lib/IR/AsmWriter.cpp
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@ -1357,10 +1357,15 @@ static void writeMDSubrange(raw_ostream &Out, const MDSubrange *N,
Out << ")";
}
static void writeMDEnumerator(raw_ostream &, const MDEnumerator *,
static void writeMDEnumerator(raw_ostream &Out, const MDEnumerator *N,
TypePrinting *, SlotTracker *, const Module *) {
llvm_unreachable("write not implemented");
Out << "!MDEnumerator(";
FieldSeparator FS;
Out << FS << "value: " << N->getValue();
Out << FS << "name: \"" << N->getName() << "\"";
Out << ")";
}
static void writeMDBasicType(raw_ostream &, const MDBasicType *, TypePrinting *,
SlotTracker *, const Module *) {
llvm_unreachable("write not implemented");

11
llvm/test/Assembler/debug-info.ll
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@ -1,8 +1,8 @@
; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s
; RUN: verify-uselistorder %s
; CHECK: !named = !{!0, !0, !1, !2}
!named = !{!0, !1, !2, !3}
; CHECK: !named = !{!0, !0, !1, !2, !3, !4, !5}
!named = !{!0, !1, !2, !3, !4, !5, !6}
; CHECK: !0 = !MDSubrange(count: 3)
; CHECK-NEXT: !1 = !MDSubrange(count: 3, lowerBound: 4)
@ -12,3 +12,10 @@
!2 = !MDSubrange(count: 3, lowerBound: 4)
!3 = !MDSubrange(count: 3, lowerBound: -5)
; CHECK-NEXT: !3 = !MDEnumerator(value: 7, name: "seven")
; CHECK-NEXT: !4 = !MDEnumerator(value: -8, name: "negeight")
; CHECK-NEXT: !5 = !MDEnumerator(value: 0, name: "")
!4 = !MDEnumerator(value: 7, name: "seven")
!5 = !MDEnumerator(value: -8, name: "negeight")
!6 = !MDEnumerator(value: 0, name: "")

4
llvm/test/Assembler/invalid-mdenumerator-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: [[@LINE+1]]:28: error: missing required field 'name'
!0 = !MDEnumerator(value: 7)

4
llvm/test/Assembler/invalid-mdenumerator-missing-value.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]]:32: error: missing required field 'value'
!0 = !MDEnumerator(name: "name")