[cfe-commits] r150491 - in /cfe/trunk: include/clang/AST/ExprCXX.h include/clang/Serialization/ASTBitCodes.h lib/AST/ExprCXX.cpp lib/Serialization/ASTReaderDecl.cpp lib/Serialization/ASTReaderStmt.cpp lib/Serialization/ASTWriter.cpp lib/Serialization/ASTWriterStmt.cpp test/PCH/cxx11-lambdas.cpp
Chad Rosier
mcrosier at apple.com
Tue Feb 14 10:56:46 PST 2012
On Feb 14, 2012, at 10:52 AM, Douglas Gregor wrote:
> Hi Chad,
>
> On Feb 14, 2012, at 10:48 AM, Chad Rosier <mcrosier at apple.com> wrote:
>
>> Hi Doug,
>> The test you added seems to be failing on the clang-x86_64-darwin10-gcc42-RA buildbot.
>
> Should be fixed in r150493.
Thanks, Doug!
>
> - Doug
>
>> See:
>> http://smooshlab.apple.com:8013/builders/clang-x86_64-darwin10-gcc42-RA/builds/11800
>>
>> Complete error message below:
>> ******************** TEST 'Clang :: PCH/cxx11-lambdas.cpp' FAILED ********************Script:
>> --
>> /Users/buildslave/zorg/buildbot/smooshlab/slave-0.8/build.clang-x86_64-darwin10-gcc42-RA/clang-build/Release+Asserts/bin/clang -cc1 -internal-isystem /Users/buildslave/zorg/buildbot/smooshlab/slave-0.8/build.clang-x86_64-darwin10-gcc42-RA/clang-build/Release+Asserts/bin/../lib/clang/3.1/include -pedantic-errors -std=c++11 -emit-pch /Users/buildslave/zorg/buildbot/smooshlab/slave-0.8/build.clang-x86_64-darwin10-gcc42-RA/clang.src/test/PCH/cxx11-lambdas.cpp -o /Users/buildslave/zorg/buildbot/smooshlab/slave-0.8/build.clang-x86_64-darwin10-gcc42-RA/clang-build/tools/clang/test/PCH/Output/cxx11-lambdas.cpp.tmp-cxx11
>> /Users/buildslave/zorg/buildbot/smooshlab/slave-0.8/build.clang-x86_64-darwin10-gcc42-RA/clang-build/Release+Asserts/bin/clang -cc1 -internal-isystem /Users/buildslave/zorg/buildbot/smooshlab/slave-0.8/build.clang-x86_64-darwin10-gcc42-RA/clang-build/Release+Asserts/bin/../lib/clang/3.1/include -ast-print -pedantic-errors -std=c++11 -include-pch /Users/buildslave/zorg/buildbot/smooshlab/slave-0.8/build.clang-x86_64-darwin10-gcc42-RA/clang-build/tools/clang/test/PCH/Output/cxx11-lambdas.cpp.tmp-cxx11 /Users/buildslave/zorg/buildbot/smooshlab/slave-0.8/build.clang-x86_64-darwin10-gcc42-RA/clang.src/test/PCH/cxx11-lambdas.cpp | FileCheck -check-prefix=CHECK-PRINT /Users/buildslave/zorg/buildbot/smooshlab/slave-0.8/build.clang-x86_64-darwin10-gcc42-RA/clang.src/test/PCH/cxx11-lambdas.cpp
>> --
>> Exit Code: 1
>> Command Output (stderr):
>> --
>> /Users/buildslave/zorg/buildbot/smooshlab/slave-0.8/build.clang-x86_64-darwin10-gcc42-RA/clang.src/test/PCH/cxx11-lambdas.cpp:35:17: error: expected string not found in input
>> // CHECK-PRINT: int add_slowly
>> ^
>> <stdin>:16:17: note: scanning from here
>> return [=, &y] {
>> ^
>> <stdin>:31:6: note: possible intended match here
>> int i = add_slowly(x, y);
>> ^
>> --
>>
>> ********************
>> Chad
>>
>>
>> On Feb 14, 2012, at 9:54 AM, Douglas Gregor wrote:
>>
>>> Author: dgregor
>>> Date: Tue Feb 14 11:54:36 2012
>>> New Revision: 150491
>>>
>>> URL: http://llvm.org/viewvc/llvm-project?rev=150491&view=rev
>>> Log:
>>> Implement AST (de-)serialization for lambda expressions.
>>>
>>> Added:
>>> cfe/trunk/test/PCH/cxx11-lambdas.cpp (with props)
>>> Modified:
>>> cfe/trunk/include/clang/AST/ExprCXX.h
>>> cfe/trunk/include/clang/Serialization/ASTBitCodes.h
>>> cfe/trunk/lib/AST/ExprCXX.cpp
>>> cfe/trunk/lib/Serialization/ASTReaderDecl.cpp
>>> cfe/trunk/lib/Serialization/ASTReaderStmt.cpp
>>> cfe/trunk/lib/Serialization/ASTWriter.cpp
>>> cfe/trunk/lib/Serialization/ASTWriterStmt.cpp
>>>
>>> Modified: cfe/trunk/include/clang/AST/ExprCXX.h
>>> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/ExprCXX.h?rev=150491&r1=150490&r2=150491&view=diff
>>> ==============================================================================
>>> --- cfe/trunk/include/clang/AST/ExprCXX.h (original)
>>> +++ cfe/trunk/include/clang/AST/ExprCXX.h Tue Feb 14 11:54:36 2012
>>> @@ -1168,6 +1168,14 @@
>>> ArrayRef<unsigned> ArrayIndexStarts,
>>> SourceLocation ClosingBrace);
>>>
>>> + /// \brief Construct an empty lambda expression.
>>> + LambdaExpr(EmptyShell Empty, unsigned NumCaptures, bool HasArrayIndexVars)
>>> + : Expr(LambdaExprClass, Empty),
>>> + NumCaptures(NumCaptures), CaptureDefault(LCD_None), ExplicitParams(false),
>>> + ExplicitResultType(false), HasArrayIndexVars(true) {
>>> + getStoredStmts()[NumCaptures] = 0;
>>> + }
>>> +
>>> Stmt **getStoredStmts() const {
>>> return reinterpret_cast<Stmt **>(const_cast<LambdaExpr *>(this) + 1);
>>> }
>>> @@ -1198,6 +1206,11 @@
>>> ArrayRef<unsigned> ArrayIndexStarts,
>>> SourceLocation ClosingBrace);
>>>
>>> + /// \brief Construct a new lambda expression that will be deserialized from
>>> + /// an external source.
>>> + static LambdaExpr *CreateDeserialized(ASTContext &C, unsigned NumCaptures,
>>> + unsigned NumArrayIndexVars);
>>> +
>>> /// \brief Determine the default capture kind for this lambda.
>>> LambdaCaptureDefault getCaptureDefault() const {
>>> return static_cast<LambdaCaptureDefault>(CaptureDefault);
>>> @@ -1271,9 +1284,7 @@
>>> CXXMethodDecl *getCallOperator() const;
>>>
>>> /// \brief Retrieve the body of the lambda.
>>> - CompoundStmt *getBody() const {
>>> - return reinterpret_cast<CompoundStmt *>(getStoredStmts()[NumCaptures]);
>>> - }
>>> + CompoundStmt *getBody() const;
>>>
>>> /// \brief Determine whether the lambda is mutable, meaning that any
>>> /// captures values can be modified.
>>>
>>> Modified: cfe/trunk/include/clang/Serialization/ASTBitCodes.h
>>> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Serialization/ASTBitCodes.h?rev=150491&r1=150490&r2=150491&view=diff
>>> ==============================================================================
>>> --- cfe/trunk/include/clang/Serialization/ASTBitCodes.h (original)
>>> +++ cfe/trunk/include/clang/Serialization/ASTBitCodes.h Tue Feb 14 11:54:36 2012
>>> @@ -1180,7 +1180,8 @@
>>> // ARC
>>> EXPR_OBJC_BRIDGED_CAST, // ObjCBridgedCastExpr
>>>
>>> - STMT_MS_DEPENDENT_EXISTS // MSDependentExistsStmt
>>> + STMT_MS_DEPENDENT_EXISTS, // MSDependentExistsStmt
>>> + EXPR_LAMBDA // LambdaExpr
>>> };
>>>
>>> /// \brief The kinds of designators that can occur in a
>>>
>>> Modified: cfe/trunk/lib/AST/ExprCXX.cpp
>>> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/ExprCXX.cpp?rev=150491&r1=150490&r2=150491&view=diff
>>> ==============================================================================
>>> --- cfe/trunk/lib/AST/ExprCXX.cpp (original)
>>> +++ cfe/trunk/lib/AST/ExprCXX.cpp Tue Feb 14 11:54:36 2012
>>> @@ -832,6 +832,16 @@
>>> ClosingBrace);
>>> }
>>>
>>> +LambdaExpr *LambdaExpr::CreateDeserialized(ASTContext &C, unsigned NumCaptures,
>>> + unsigned NumArrayIndexVars) {
>>> + unsigned Size = sizeof(LambdaExpr) + sizeof(Stmt *) * (NumCaptures + 1);
>>> + if (NumArrayIndexVars)
>>> + Size += sizeof(VarDecl) * NumArrayIndexVars
>>> + + sizeof(unsigned) * (NumCaptures + 1);
>>> + void *Mem = C.Allocate(Size);
>>> + return new (Mem) LambdaExpr(EmptyShell(), NumCaptures, NumArrayIndexVars > 0);
>>> +}
>>> +
>>> LambdaExpr::capture_iterator LambdaExpr::capture_begin() const {
>>> return getLambdaClass()->getLambdaData().Captures;
>>> }
>>> @@ -886,6 +896,13 @@
>>> return Result;
>>> }
>>>
>>> +CompoundStmt *LambdaExpr::getBody() const {
>>> + if (!getStoredStmts()[NumCaptures])
>>> + getStoredStmts()[NumCaptures] = getCallOperator()->getBody();
>>> +
>>> + return reinterpret_cast<CompoundStmt *>(getStoredStmts()[NumCaptures]);
>>> +}
>>> +
>>> bool LambdaExpr::isMutable() const {
>>> return (getCallOperator()->getTypeQualifiers() & Qualifiers::Const) == 0;
>>> }
>>>
>>> Modified: cfe/trunk/lib/Serialization/ASTReaderDecl.cpp
>>> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTReaderDecl.cpp?rev=150491&r1=150490&r2=150491&view=diff
>>> ==============================================================================
>>> --- cfe/trunk/lib/Serialization/ASTReaderDecl.cpp (original)
>>> +++ cfe/trunk/lib/Serialization/ASTReaderDecl.cpp Tue Feb 14 11:54:36 2012
>>> @@ -1050,6 +1050,7 @@
>>> void ASTDeclReader::ReadCXXDefinitionData(
>>> struct CXXRecordDecl::DefinitionData &Data,
>>> const RecordData &Record, unsigned &Idx) {
>>> + // Note: the caller has deserialized the IsLambda bit already.
>>> Data.UserDeclaredConstructor = Record[Idx++];
>>> Data.UserDeclaredCopyConstructor = Record[Idx++];
>>> Data.UserDeclaredMoveConstructor = Record[Idx++];
>>> @@ -1097,6 +1098,25 @@
>>> Reader.ReadUnresolvedSet(F, Data.VisibleConversions, Record, Idx);
>>> assert(Data.Definition && "Data.Definition should be already set!");
>>> Data.FirstFriend = ReadDeclAs<FriendDecl>(Record, Idx);
>>> +
>>> + if (Data.IsLambda) {
>>> + typedef LambdaExpr::Capture Capture;
>>> + CXXRecordDecl::LambdaDefinitionData &Lambda
>>> + = static_cast<CXXRecordDecl::LambdaDefinitionData &>(Data);
>>> + Lambda.NumCaptures = Record[Idx++];
>>> + Lambda.NumExplicitCaptures = Record[Idx++];
>>> + Lambda.Captures
>>> + = (Capture*)Reader.Context.Allocate(sizeof(Capture)*Lambda.NumCaptures);
>>> + Capture *ToCapture = Lambda.Captures;
>>> + for (unsigned I = 0, N = Lambda.NumCaptures; I != N; ++I) {
>>> + SourceLocation Loc = ReadSourceLocation(Record, Idx);
>>> + bool IsImplicit = Record[Idx++];
>>> + LambdaCaptureKind Kind = static_cast<LambdaCaptureKind>(Record[Idx++]);
>>> + VarDecl *Var = ReadDeclAs<VarDecl>(Record, Idx);
>>> + SourceLocation EllipsisLoc = ReadSourceLocation(Record, Idx);
>>> + *ToCapture++ = Capture(Loc, IsImplicit, Kind, Var, EllipsisLoc);
>>> + }
>>> + }
>>> }
>>>
>>> void ASTDeclReader::VisitCXXRecordDecl(CXXRecordDecl *D) {
>>> @@ -1104,7 +1124,13 @@
>>>
>>> ASTContext &C = Reader.getContext();
>>> if (Record[Idx++]) {
>>> - D->DefinitionData = new (C) struct CXXRecordDecl::DefinitionData(D);
>>> + // Determine whether this is a lambda closure type, so that we can
>>> + // allocate the appropriate DefinitionData structure.
>>> + bool IsLambda = Record[Idx++];
>>> + if (IsLambda)
>>> + D->DefinitionData = new (C) CXXRecordDecl::LambdaDefinitionData(D);
>>> + else
>>> + D->DefinitionData = new (C) struct CXXRecordDecl::DefinitionData(D);
>>>
>>> // Propagate the DefinitionData pointer to the canonical declaration, so
>>> // that all other deserialized declarations will see it.
>>>
>>> Modified: cfe/trunk/lib/Serialization/ASTReaderStmt.cpp
>>> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTReaderStmt.cpp?rev=150491&r1=150490&r2=150491&view=diff
>>> ==============================================================================
>>> --- cfe/trunk/lib/Serialization/ASTReaderStmt.cpp (original)
>>> +++ cfe/trunk/lib/Serialization/ASTReaderStmt.cpp Tue Feb 14 11:54:36 2012
>>> @@ -1050,7 +1050,31 @@
>>>
>>> void ASTStmtReader::VisitLambdaExpr(LambdaExpr *E) {
>>> VisitExpr(E);
>>> - assert(false && "Cannot deserialize lambda expressions yet");
>>> + unsigned NumCaptures = Record[Idx++];
>>> + assert(NumCaptures == E->NumCaptures);(void)NumCaptures;
>>> + unsigned NumArrayIndexVars = Record[Idx++];
>>> + E->IntroducerRange = ReadSourceRange(Record, Idx);
>>> + E->CaptureDefault = static_cast<LambdaCaptureDefault>(Record[Idx++]);
>>> + E->ExplicitParams = Record[Idx++];
>>> + E->ExplicitResultType = Record[Idx++];
>>> + E->ClosingBrace = ReadSourceLocation(Record, Idx);
>>> +
>>> + // Read capture initializers.
>>> + for (LambdaExpr::capture_init_iterator C = E->capture_init_begin(),
>>> + CEnd = E->capture_init_end();
>>> + C != CEnd; ++C)
>>> + *C = Reader.ReadSubExpr();
>>> +
>>> + // Read array capture index variables.
>>> + if (NumArrayIndexVars > 0) {
>>> + unsigned *ArrayIndexStarts = E->getArrayIndexStarts();
>>> + for (unsigned I = 0; I != NumCaptures + 1; ++I)
>>> + ArrayIndexStarts[I] = Record[Idx++];
>>> +
>>> + VarDecl **ArrayIndexVars = E->getArrayIndexVars();
>>> + for (unsigned I = 0; I != NumArrayIndexVars; ++I)
>>> + ArrayIndexVars[I] = ReadDeclAs<VarDecl>(Record, Idx);
>>> + }
>>> }
>>>
>>> void ASTStmtReader::VisitCXXNamedCastExpr(CXXNamedCastExpr *E) {
>>> @@ -2083,6 +2107,14 @@
>>> case EXPR_ATOMIC:
>>> S = new (Context) AtomicExpr(Empty);
>>> break;
>>> +
>>> + case EXPR_LAMBDA: {
>>> + unsigned NumCaptures = Record[ASTStmtReader::NumExprFields];
>>> + unsigned NumArrayIndexVars = Record[ASTStmtReader::NumExprFields + 1];
>>> + S = LambdaExpr::CreateDeserialized(Context, NumCaptures,
>>> + NumArrayIndexVars);
>>> + break;
>>> + }
>>> }
>>>
>>> // We hit a STMT_STOP, so we're done with this expression.
>>>
>>> Modified: cfe/trunk/lib/Serialization/ASTWriter.cpp
>>> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTWriter.cpp?rev=150491&r1=150490&r2=150491&view=diff
>>> ==============================================================================
>>> --- cfe/trunk/lib/Serialization/ASTWriter.cpp (original)
>>> +++ cfe/trunk/lib/Serialization/ASTWriter.cpp Tue Feb 14 11:54:36 2012
>>> @@ -4274,6 +4274,7 @@
>>> void ASTWriter::AddCXXDefinitionData(const CXXRecordDecl *D, RecordDataImpl &Record) {
>>> assert(D->DefinitionData);
>>> struct CXXRecordDecl::DefinitionData &Data = *D->DefinitionData;
>>> + Record.push_back(Data.IsLambda);
>>> Record.push_back(Data.UserDeclaredConstructor);
>>> Record.push_back(Data.UserDeclaredCopyConstructor);
>>> Record.push_back(Data.UserDeclaredMoveConstructor);
>>> @@ -4325,6 +4326,24 @@
>>> AddUnresolvedSet(Data.VisibleConversions, Record);
>>> // Data.Definition is the owning decl, no need to write it.
>>> AddDeclRef(Data.FirstFriend, Record);
>>> +
>>> + // Add lambda-specific data.
>>> + if (Data.IsLambda) {
>>> + CXXRecordDecl::LambdaDefinitionData &Lambda = D->getLambdaData();
>>> + Record.push_back(Lambda.NumCaptures);
>>> + Record.push_back(Lambda.NumExplicitCaptures);
>>> + for (unsigned I = 0, N = Lambda.NumCaptures; I != N; ++I) {
>>> + LambdaExpr::Capture &Capture = Lambda.Captures[I];
>>> + AddSourceLocation(Capture.getLocation(), Record);
>>> + Record.push_back(Capture.isImplicit());
>>> + Record.push_back(Capture.getCaptureKind()); // FIXME: stable!
>>> + VarDecl *Var = Capture.capturesVariable()? Capture.getCapturedVar() : 0;
>>> + AddDeclRef(Var, Record);
>>> + AddSourceLocation(Capture.isPackExpansion()? Capture.getEllipsisLoc()
>>> + : SourceLocation(),
>>> + Record);
>>> + }
>>> + }
>>> }
>>>
>>> void ASTWriter::ReaderInitialized(ASTReader *Reader) {
>>>
>>> Modified: cfe/trunk/lib/Serialization/ASTWriterStmt.cpp
>>> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTWriterStmt.cpp?rev=150491&r1=150490&r2=150491&view=diff
>>> ==============================================================================
>>> --- cfe/trunk/lib/Serialization/ASTWriterStmt.cpp (original)
>>> +++ cfe/trunk/lib/Serialization/ASTWriterStmt.cpp Tue Feb 14 11:54:36 2012
>>> @@ -1024,7 +1024,34 @@
>>>
>>> void ASTStmtWriter::VisitLambdaExpr(LambdaExpr *E) {
>>> VisitExpr(E);
>>> - assert(false && "Cannot serialize lambda expressions yet");
>>> + Record.push_back(E->NumCaptures);
>>> + unsigned NumArrayIndexVars = 0;
>>> + if (E->HasArrayIndexVars)
>>> + NumArrayIndexVars = E->getArrayIndexStarts()[E->NumCaptures];
>>> + Record.push_back(NumArrayIndexVars);
>>> + Writer.AddSourceRange(E->IntroducerRange, Record);
>>> + Record.push_back(E->CaptureDefault); // FIXME: stable encoding
>>> + Record.push_back(E->ExplicitParams);
>>> + Record.push_back(E->ExplicitResultType);
>>> + Writer.AddSourceLocation(E->ClosingBrace, Record);
>>> +
>>> + // Add capture initializers.
>>> + for (LambdaExpr::capture_init_iterator C = E->capture_init_begin(),
>>> + CEnd = E->capture_init_end();
>>> + C != CEnd; ++C) {
>>> + Writer.AddStmt(*C);
>>> + }
>>> +
>>> + // Add array index variables, if any.
>>> + if (NumArrayIndexVars) {
>>> + Record.append(E->getArrayIndexStarts(),
>>> + E->getArrayIndexStarts() + E->NumCaptures + 1);
>>> + VarDecl **ArrayIndexVars = E->getArrayIndexVars();
>>> + for (unsigned I = 0; I != NumArrayIndexVars; ++I)
>>> + Writer.AddDeclRef(ArrayIndexVars[I], Record);
>>> + }
>>> +
>>> + Code = serialization::EXPR_LAMBDA;
>>> }
>>>
>>> void ASTStmtWriter::VisitCXXNamedCastExpr(CXXNamedCastExpr *E) {
>>>
>>> Added: cfe/trunk/test/PCH/cxx11-lambdas.cpp
>>> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/PCH/cxx11-lambdas.cpp?rev=150491&view=auto
>>> ==============================================================================
>>> --- cfe/trunk/test/PCH/cxx11-lambdas.cpp (added)
>>> +++ cfe/trunk/test/PCH/cxx11-lambdas.cpp Tue Feb 14 11:54:36 2012
>>> @@ -0,0 +1,43 @@
>>> +// RUN: %clang_cc1 -pedantic-errors -std=c++11 -emit-pch %s -o %t-cxx11
>>> +// RUN: %clang_cc1 -ast-print -pedantic-errors -std=c++11 -include-pch %t-cxx11 %s | FileCheck -check-prefix=CHECK-PRINT %s
>>> +
>>> +#ifndef HEADER_INCLUDED
>>> +
>>> +#define HEADER_INCLUDED
>>> +template<typename T>
>>> +T add_slowly(const T& x, const T &y) {
>>> + return [=, &y] { return x + y; }();
>>> +};
>>> +
>>> +inline int add_int_slowly_twice(int x, int y) {
>>> + int i = add_slowly(x, y);
>>> + auto lambda = [&](int z) { return x + z; };
>>> + return i + lambda(y);
>>> +}
>>> +
>>> +inline int sum_array(int n) {
>>> + int array[5] = { 1, 2, 3, 4, 5};
>>> + auto lambda = [=](int N) -> int {
>>> + int sum = 0;
>>> + for (unsigned I = 0; I < N; ++I)
>>> + sum += array[N];
>>> + return sum;
>>> + };
>>> +
>>> + return lambda(n);
>>> +}
>>> +#else
>>> +
>>> +// CHECK-PRINT: float add_slowly
>>> +// CHECK-PRINT: return [=, &y]
>>> +template float add_slowly(const float&, const float&);
>>> +
>>> +// CHECK-PRINT: int add_slowly
>>> +// CHECK-PRINT: return [=, &y]
>>> +int add(int x, int y) {
>>> + return add_int_slowly_twice(x, y) + sum_array(4);
>>> +}
>>> +
>>> +// CHECK-PRINT: inline int add_int_slowly_twice
>>> +// CHECK-PRINT: lambda = [&] (int z)
>>> +#endif
>>>
>>> Propchange: cfe/trunk/test/PCH/cxx11-lambdas.cpp
>>> ------------------------------------------------------------------------------
>>> svn:eol-style = native
>>>
>>> Propchange: cfe/trunk/test/PCH/cxx11-lambdas.cpp
>>> ------------------------------------------------------------------------------
>>> svn:keywords = Id
>>>
>>> Propchange: cfe/trunk/test/PCH/cxx11-lambdas.cpp
>>> ------------------------------------------------------------------------------
>>> svn:mime-type = text/plain
>>>
>>>
>>> _______________________________________________
>>> cfe-commits mailing list
>>> cfe-commits at cs.uiuc.edu
>>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
>>
>
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