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AsmWriter/Bitcode: MDLexicalBlock

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229016 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith 2015-02-13 01:29:28 +00:00
parent 4730b909f6
commit c7be07e636
7 changed files with 79 additions and 9 deletions
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3
include/llvm/Bitcode/LLVMBitCodes.h
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@ -156,7 +156,8 @@ namespace bitc {
METADATA_COMPOSITE_TYPE= 18, // [distinct, ...]
METADATA_SUBROUTINE_TYPE=19, // [distinct, flags, types]
METADATA_COMPILE_UNIT = 20, // [distinct, ...]
METADATA_SUBPROGRAM = 21 // [distinct, ...]
METADATA_SUBPROGRAM = 21, // [distinct, ...]
METADATA_LEXICAL_BLOCK = 22 // [distinct, scope, file, line, column]
};
// The constants block (CONSTANTS_BLOCK_ID) describes emission for each

15
lib/AsmParser/LLParser.cpp
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@ -3466,9 +3466,22 @@ bool LLParser::ParseMDSubprogram(MDNode *&Result, bool IsDistinct) {
return false;
}
/// ParseMDLexicalBlock:
/// ::= !MDLexicalBlock(scope: !0, file: !2, line: 7, column: 9)
bool LLParser::ParseMDLexicalBlock(MDNode *&Result, bool IsDistinct) {
return TokError("unimplemented parser");
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
REQUIRED(scope, MDField, ); \
OPTIONAL(file, MDField, ); \
OPTIONAL(line, LineField, ); \
OPTIONAL(column, ColumnField, );
PARSE_MD_FIELDS();
#undef VISIT_MD_FIELDS
Result = GET_OR_DISTINCT(
MDLexicalBlock, (Context, scope.Val, file.Val, line.Val, column.Val));
return false;
}
bool LLParser::ParseMDLexicalBlockFile(MDNode *&Result, bool IsDistinct) {
return TokError("unimplemented parser");
}

11
lib/Bitcode/Reader/BitcodeReader.cpp
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@ -1468,6 +1468,17 @@ std::error_code BitcodeReader::ParseMetadata() {
NextMDValueNo++);
break;
}
case bitc::METADATA_LEXICAL_BLOCK: {
if (Record.size() != 5)
return Error("Invalid record");
MDValueList.AssignValue(
GET_OR_DISTINCT(MDLexicalBlock, Record[0],
(Context, getMDOrNull(Record[1]),
getMDOrNull(Record[2]), Record[3], Record[4])),
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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@ -978,11 +978,21 @@ static void WriteMDSubprogram(const MDSubprogram *N,
Record.clear();
}
static void WriteMDLexicalBlock(const MDLexicalBlock *, const ValueEnumerator &,
BitstreamWriter &, SmallVectorImpl<uint64_t> &,
unsigned) {
llvm_unreachable("write not implemented");
static void WriteMDLexicalBlock(const MDLexicalBlock *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(N->getLine());
Record.push_back(N->getColumn());
Stream.EmitRecord(bitc::METADATA_LEXICAL_BLOCK, Record, Abbrev);
Record.clear();
}
static void WriteMDLexicalBlockFile(const MDLexicalBlockFile *,
const ValueEnumerator &, BitstreamWriter &,
SmallVectorImpl<uint64_t> &, unsigned) {

21
lib/IR/AsmWriter.cpp
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@ -1623,10 +1623,25 @@ static void writeMDSubprogram(raw_ostream &Out, const MDSubprogram *N,
Out << ")";
}
static void writeMDLexicalBlock(raw_ostream &, const MDLexicalBlock *,
TypePrinting *, SlotTracker *, const Module *) {
llvm_unreachable("write not implemented");
static void writeMDLexicalBlock(raw_ostream &Out, const MDLexicalBlock *N,
TypePrinting *TypePrinter, SlotTracker *Machine,
const Module *Context) {
Out << "!MDLexicalBlock(";
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->getLine())
Out << FS << "line: " << N->getLine();
if (N->getColumn())
Out << FS << "column: " << N->getColumn();
Out << ")";
}
static void writeMDLexicalBlockFile(raw_ostream &, const MDLexicalBlockFile *,
TypePrinting *, SlotTracker *,
const Module *) {

4
test/Assembler/invalid-mdlexicalblock-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]]:29: error: missing required field 'scope'
!0 = !MDLexicalBlock(line: 7)

16
test/Assembler/mdlexicalblock.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 = !MDLexicalBlock(scope: !0, file: !2, line: 7, column: 35)
!3 = !MDLexicalBlock(scope: !0, file: !2, line: 7, column: 35)
; CHECK: !4 = !MDLexicalBlock(scope: !0)
!4 = !MDLexicalBlock(scope: !0)
!5 = !MDLexicalBlock(scope: !0, file: null, line: 0, column: 0)