Commit Graph

614 Commits

Author SHA1 Message Date
John McCall
6dd27195b9 Kill FullExpr, as it was not, in fact, used anywhere in the code base.
I'm not opposed to the idea in concept, but there's no point in preserving
abortive experiments.

llvm-svn: 121083
2010-12-07 00:47:33 +00:00
Francois Pichet
9dfa3ce94f Type traits intrinsic implementation: __is_base_of(T, U)
New AST node introduced: BinaryTypeTraitExpr; to be reused for more intrinsics.

llvm-svn: 121074
2010-12-07 00:08:36 +00:00
John McCall
5d41378146 Rename CXXExprWithTemporaries -> ExprWithCleanups; there's no theoretical
reason this is limited to C++, and it's certainly not limited to temporaries.

llvm-svn: 120996
2010-12-06 08:20:24 +00:00
John McCall
ca61b6567b First pass at implementing the intent of ANSI C DR106.
llvm-svn: 120904
2010-12-04 12:29:11 +00:00
John McCall
a03eddad58 dyn_cast else unreachable -> cast
llvm-svn: 120902
2010-12-04 09:57:16 +00:00
John McCall
34376a68c4 Although we currently have explicit lvalue-to-rvalue conversions, they're
not actually frequently used, because ImpCastExprToType only creates a node
if the types differ.  So explicitly create an ICE in the lvalue-to-rvalue
conversion code in DefaultFunctionArrayLvalueConversion() as well as several
other new places, and consistently deal with the consequences throughout the
compiler.

In addition, introduce a new cast kind for loading an ObjCProperty l-value,
and make sure we emit those nodes whenever an ObjCProperty l-value appears
that's not on the LHS of an assignment operator.

This breaks a couple of rewriter tests, which I've x-failed until future
development occurs on the rewriter.

Ted Kremenek kindly contributed the analyzer workarounds in this patch.

llvm-svn: 120890
2010-12-04 03:47:34 +00:00
Douglas Gregor
6dd3a6a181 When we're performing an explicit cast of some sort, don't complain
about deprecated Objective-C pointer conversions. Plus, make sure to
actually set an appropriate AssignmentAction when performing an
implicit conversion from an InitializationSequence. Fixes regressions
in the GCC DejaGNU testsuite.

llvm-svn: 120744
2010-12-02 21:47:04 +00:00
John McCall
fee942d150 Perform lvalue-to-rvalue at the end of an expression statement in C.
llvm-svn: 120646
2010-12-02 02:07:15 +00:00
John McCall
086a464e24 Switch a lot of call-sites over to using the new value-kind calculations.
llvm-svn: 120084
2010-11-24 05:12:34 +00:00
John McCall
4bc41aee2b Add an assertion, fix a whole bunch of bugs, comment the assertion
out because there are still bugs left.

llvm-svn: 119722
2010-11-18 19:01:18 +00:00
John McCall
7decc9e4ea Calculate the value kind of an expression when it's created and
store it on the expression node.  Also store an "object kind",
which distinguishes ordinary "addressed" l-values (like
variable references and pointer dereferences) and bitfield,
@property, and vector-component l-values.

Currently we're not using these for much, but I aim to switch
pretty much everything calculating l-valueness over to them.
For now they shouldn't necessarily be trusted.

llvm-svn: 119685
2010-11-18 06:31:45 +00:00
John McCall
8cb679e4e1 Assorted work leading towards the elimination of CK_Unknown.
llvm-svn: 119138
2010-11-15 09:13:47 +00:00
John McCall
e84af4e486 Introduce a null-to-pointer implicit cast kind.
llvm-svn: 118966
2010-11-13 01:35:44 +00:00
Argyrios Kyrtzidis
3050d9bdb8 Properly handle temporaries that are created in a AsmStmt.
Previously the temporaries would get destroyed before the asm call.

llvm-svn: 118001
2010-11-02 02:33:08 +00:00
Douglas Gregor
298087bc25 Harden Sema::MaybeBindTotemporary.
llvm-svn: 117954
2010-11-01 21:10:29 +00:00
John McCall
c3007a2145 No really, we don't have a retain/release system for statements/expressions
anymore.

llvm-svn: 117357
2010-10-26 07:05:15 +00:00
Chandler Carruth
0171815ae1 Improve the tracking of source locations for parentheses in constructor calls.
This adds them where missing, and traces them through PCH. We fix at least one
bug in the extents found by the Index library, and make a lot of refactoring
tools which care about the exact formulation of a constructor call easier to
write. Also some minor cleanups to more consistently follow the friend pattern
instead of the setter pattern when rebuilding a serialized AST.

Patch originally by Samuel Benzaquen.

llvm-svn: 117254
2010-10-25 08:47:36 +00:00
Douglas Gregor
d07ba34a44 There is no reason for dereferencing a pointer-to-member to require
that the class type into which the pointer points be complete, even
though the standard requires it. GCC/EDG do not require a complete
type here, so we're calling this a problem with the standard. Fixes
PR8328.

llvm-svn: 116429
2010-10-13 20:41:14 +00:00
Douglas Gregor
5bb5e4ad9d Introduce support for emitting diagnostics (warnings + their notes)
that are suppressed during template argument deduction. This change
queues diagnostics computed during template argument deduction. Then,
if the resulting function template specialization or partial
specialization is chosen by overload resolution or partial ordering
(respectively), we will emit the queued diagnostics at that point. 

This addresses most of PR6784. However, the check for unnamed/local
template arguments (which existed before this change) is still only
skin-deep, and needs to be extended to look deeper into types. It must
be improved to finish PR6784.

llvm-svn: 116373
2010-10-12 23:32:35 +00:00
Eli Friedman
36ebbec121 PR8325: don't do destructor checking when a pointer is thrown.
llvm-svn: 116336
2010-10-12 20:32:36 +00:00
Douglas Gregor
0bf3140424 Implement C++0x scoped enumerations, from Daniel Wallin! (and tweaked a
bit by me). 

llvm-svn: 116122
2010-10-08 23:50:27 +00:00
John McCall
acf0ee57b6 Track the location of the context requiring an implicit conversion and use it
to white-list conversions required by system headers.  rdar://problem/8232669

llvm-svn: 116029
2010-10-08 02:01:28 +00:00
Douglas Gregor
3999e15d93 Reject the allocation of variably-modified types in C++ 'new'
expressions. Fixes PR8209 in the narrowest way possible. I'm still
considering whether I want to implement the extension that permits the
use of VLA types in a 'new' expression.

llvm-svn: 115790
2010-10-06 16:00:31 +00:00
Fariborz Jahanian
c60da031c5 Fix a NYI in IRGen which was due to incorrect AST
for property reference expression (of c++ object type)
in the conditional expression. Fixes // rdar://8291337

llvm-svn: 114783
2010-09-25 01:08:05 +00:00
Fariborz Jahanian
8fb87aec78 Patch implements passing arrays to functions expecting
vla. Implements pr7827.

llvm-svn: 114737
2010-09-24 17:30:16 +00:00
Fariborz Jahanian
2b1d88abfb Problem with gnu conditional extension with missing
LHS and when conditional expression is an array. Since
it will be decayed, saved expression must be saved with
decayed expression. This is necessary to preserve semantics
of this extension (and prevent an IRGen crash which expects
an array to always be decayed). I am sure there will be other
cases in c++ (aggregate conditionals for example) when saving of the 
expression must happen after some transformation on conditional
expression has happened. 
Doug, please review.  Fixes // rdar://8446940

llvm-svn: 114296
2010-09-18 19:38:38 +00:00
Sebastian Redl
058fc820d7 Fix destructor and assignment operator lookup in the has_nothrow traits.
llvm-svn: 113897
2010-09-14 23:40:14 +00:00
John McCall
d3be2c83d5 The paired 'operator delete' for a placement 'operator new' is always a
placement 'operator delete', even if there are no placement args (i.e.
overload resolution selected an operator new with default arguments).

llvm-svn: 113861
2010-09-14 21:34:24 +00:00
Sebastian Redl
5c649bc7bb Don't crash when using type traits on a class with a constructor template.
llvm-svn: 113796
2010-09-13 22:18:28 +00:00
Sebastian Redl
c15c326b51 Remove CXXRecordDecl::getDefaultConstructor(), an inherently unsafe function due to lazy declaration of default constructors. Now that __has_nothrow_constructor doesn't use it anymore, part of PR8101 is fixed.
llvm-svn: 113794
2010-09-13 22:02:47 +00:00
Sebastian Redl
951006f510 Have __has_nothrow_copy use Sema's lookup routines. This fixes the problem with not finding implicitly declared copy constructors, part of PR8107.
llvm-svn: 113784
2010-09-13 21:10:20 +00:00
Sebastian Redl
8eb06f17c4 Eagerly evaluate type traits in Sema instead of lazily in AST. They actually need Sema access to be correct, fixes coming up.
llvm-svn: 113782
2010-09-13 20:56:31 +00:00
Argyrios Kyrtzidis
14ec9f674a When applying 'delete' on a pointer-to-array type match GCC and EDG behavior and treat it as 'delete[]'.
Also offer a fix-it hint adding '[]'.

llvm-svn: 113778
2010-09-13 20:15:54 +00:00
Sebastian Redl
e56be2f72c Eli helped me understand how evaluation contexts work.
llvm-svn: 113642
2010-09-10 21:57:27 +00:00
Sebastian Redl
4202c0f2a9 Define and implement CXXNoexceptExpr. Create it in Sema.
llvm-svn: 113623
2010-09-10 20:55:43 +00:00
Sebastian Redl
22e3a93586 Parse the noexcept operator and stub out sema.
llvm-svn: 113622
2010-09-10 20:55:37 +00:00
Douglas Gregor
ce5aa33385 Eliminate the comma locations from all of the Sema routines that deal
with comma-separated lists. We never actually used the comma
locations, nor did we store them in the AST, but we did manage to
waste time during template instantiation to produce fake locations.

llvm-svn: 113495
2010-09-09 16:33:13 +00:00
Douglas Gregor
54e5b13a27 Add proper type-source information to UnaryTypeTraitExpr, including
libclang visitation.

llvm-svn: 113492
2010-09-09 16:14:44 +00:00
Douglas Gregor
4c7c109eec Fix a few minor issues with parsing and semantic analysis of C++
typeid expressions: 
  - make sure we have a proper source location for the closing ')'
  - cache the declaration of std::type_info once we've found it

llvm-svn: 113441
2010-09-08 23:14:30 +00:00
Douglas Gregor
8ec5173f9a Use the new-initialization code for initializing scalars with a
function-style cast. Previously, we had a (redundant, incorrect)
semantic-checking path for non-class types, which allowed
value-initialization of a reference type and then crashed.

llvm-svn: 113415
2010-09-08 21:40:08 +00:00
Francois Pichet
9f4f2078d6 Microsoft's __uuidof operator implementation part 1.
llvm-svn: 113356
2010-09-08 12:20:18 +00:00
Sebastian Redl
a190d3605f Allow (cv) void and incomplete arrays to be passed to the type traits.
Fixes PR8110, and thus PR8109, PR8097, and parts of PR8101, PR8105 and PR8107. Only a few traits have tests for incomplete arrays, since I'm not yet clear what the result for them should be; Howards wants to file a DR to change the standard.

llvm-svn: 113326
2010-09-08 00:48:43 +00:00
Douglas Gregor
2b88c115f9 Provide proper type-source location information for
CXXTemporaryObjectExpr, CXXScalarValueInitExpr, and
CXXUnresolvedConstructExpr, getting rid of a bunch of FIXMEs in the
process.

llvm-svn: 113319
2010-09-08 00:15:04 +00:00
Douglas Gregor
0744ef6371 Improve source-location information for CXXNewExpr, by hanging on to
the TypeSourceInfo for the allocated type. Fixes PR7501.

llvm-svn: 113291
2010-09-07 21:49:58 +00:00
Alexis Hunt
3b7918625c Revert my user-defined literal commits - r1124{58,60,67} pending
some issues being sorted out.

llvm-svn: 112493
2010-08-30 17:47:05 +00:00
Alexis Hunt
79eb5469e0 Implement C++0x user-defined string literals.
The extra data stored on user-defined literal Tokens is stored in extra
allocated memory, which is managed by the PreprocessorLexer because there isn't
a better place to put it that makes sure it gets deallocated, but only after
it's used up. My testing has shown no significant slowdown as a result, but
independent testing would be appreciated.

llvm-svn: 112458
2010-08-29 21:26:48 +00:00
Argyrios Kyrtzidis
43b205796f Fix the memory leak of FloatingLiteral/IntegerLiteral.
For large floats/integers, APFloat/APInt will allocate memory from the heap to represent these numbers.
Unfortunately, when we use a BumpPtrAllocator to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with
the APFloat/APInt values will never get freed.
I introduce the class 'APNumericStorage' which uses ASTContext's allocator for memory allocation and is used internally by FloatingLiteral/IntegerLiteral.

Fixes rdar://7637185

llvm-svn: 112361
2010-08-28 09:06:06 +00:00
John McCall
faf5fb4b78 One who seeks knowledge learns something new every day.
One who seeks the Tao unlearns something new every day.
Less and less remains until you arrive at non-action.
When you arrive at non-action,
nothing will be left undone.

llvm-svn: 112244
2010-08-26 23:41:50 +00:00
John McCall
8e7d656a4a De-memberify the VarDecl and FunctionDecl StorageClass enums.
This lets us remove Sema.h's dependency on Expr.h and Decl.h.

llvm-svn: 112156
2010-08-26 03:08:43 +00:00
Argyrios Kyrtzidis
1194d5e3d2 Fix miscompilation. The custom new[]/delete[] methods were not getting called for arrays with more than 1 dimension.
llvm-svn: 112107
2010-08-25 23:14:56 +00:00