Commit Graph

459 Commits

Author SHA1 Message Date
Argyrios Kyrtzidis 207180802c Allow getting all source locations of selector identifiers in a ObjCMessageExpr.
Instead of always storing all source locations for the selector identifiers
we check whether all the identifiers are in a "standard" position; "standard" position is

  -Immediately before the arguments: [foo first:1 second:2]
  -With a space between the arguments: [foo first: 1 second: 2]
  -For nullary selectors, immediately before ']': [foo release]

In such cases we infer the locations instead of storing them.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140987 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-03 06:36:51 +00:00
David Blaikie eb2d1f1c88 Removing a bunch of dead returns/breaks after llvm_unreachables.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140407 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-23 20:26:49 +00:00
David Blaikie b219cfc4d7 Switch assert(0/false) llvm_unreachable.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140367 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-23 05:06:16 +00:00
David Blaikie a71f9d0a5e ArrayRef-ifying the UnexpandedParameterPacks passed to Sema::CheckParameterPacksForExpansion
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140290 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-22 02:34:54 +00:00
David Blaikie 4278c654b6 ArrayRef-ifying Function/BlockDecl's setParams
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140268 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-21 18:16:56 +00:00
John McCall 07524039dc The lock operand to an @synchronized statement is also
supposed to be a full-expression;  make it so.  In ARC, make sure
we retain the lock for the entire protected block. 



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136271 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-27 21:50:02 +00:00
John McCall 990567cb60 Clean up the analysis of the collection operand to ObjC
for-in statements;  specifically, make sure to close over any
temporaries or cleanups it might require.  In ARC, this has
implications for the lifetime of the collection, so emit it
with a retain and release it upon exit from the loop.

rdar://problem/9817306



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136204 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-27 01:07:15 +00:00
Douglas Gregor 2ad63cf714 When we decide not to rebuild an instantiated C++ 'new' expression
that allocates an array of objects with a non-trivial destructor, be
sure to mark the destructor is "used". Fixes PR10480 /
<rdar://problem/9834317>.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136081 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 15:11:03 +00:00
Chris Lattner 686775deca now that we have a centralized place to do so, add some using declarations for
some common llvm types: stringref and smallvector.  This cleans up the codebase
quite a bit.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135576 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20 06:58:45 +00:00
Douglas Gregor 5b8968cc59 Store bracket locations for array subscript expressions, from Erik Verbruggen!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135275 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-15 16:25:15 +00:00
John McCall 91a5755ad7 Create a new expression node, SubstNonTypeTemplateParmExpr,
to represent a fully-substituted non-type template parameter.
This should improve source fidelity, as well as being generically
useful for diagnostics and such.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135243 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-15 05:09:51 +00:00
Douglas Gregor bca01b4685 Properly implement the scope restriction on the NRVO for
throw-expressions, such that we don't consider the NRVO when the
non-volatile automatic object comes from outside the innermost try
scope (C++0x [class.copymove]p13). In C++98/03, our ASTs were
incorrect but it didn't matter because IR generation doesn't actually
apply the NRVO here. In C++0x, however, we were moving from an object
when in fact we should have copied from it. Fixes PR10142 /
<rdar://problem/9714312>.





git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134548 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06 22:04:06 +00:00
John McCall c8fc90a854 When tree-transforming an expression sequence, always flag expanded
variadic argument pack expansions as having changed, rather than doing
it for each changed expansion, which leaves out zero-argument packs
with catastrophic consequences.

Fixes PR10260.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134483 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06 07:30:07 +00:00
Douglas Gregor d0e8b78278 When instantiating a C++ "new" expression, don't fake source locations
for the '(' and ')' around the initializer unless we actually have an
initializer. Fixes PR10197, an issue where we were value-initializing
rather than default-initializing.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133913 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-27 16:55:54 +00:00
Argyrios Kyrtzidis b8b0313e84 Rename objc_lifetime -> objc_ownership, and modify diagnostics to talk about 'ownership', not 'lifetime'.
rdar://9477613.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133779 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24 00:08:59 +00:00
Douglas Gregor 03e8003051 Introduce a new AST node describing reference binding to temporaries.
MaterializeTemporaryExpr captures a reference binding to a temporary
value, making explicit that the temporary value (a prvalue) needs to
be materialized into memory so that its address can be used. The
intended AST invariant here is that a reference will always bind to a
glvalue, and MaterializeTemporaryExpr will be used to convert prvalues
into glvalues for that binding to happen. For example, given

  const int& r = 1.0;

The initializer of "r" will be a MaterializeTemporaryExpr whose
subexpression is an implicit conversion from the double literal "1.0"
to an integer value. 

IR generation benefits most from this new node, since it was
previously guessing (badly) when to materialize temporaries for the
purposes of reference binding. There are likely more refactoring and
cleanups we could perform there, but the introduction of
MaterializeTemporaryExpr fixes PR9565, a case where IR generation
would effectively bind a const reference directly to a bitfield in a
struct. Addresses <rdar://problem/9552231>.




git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133521 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21 17:03:29 +00:00
Douglas Gregor 4020caec54 Objective-C++ ARC: eliminate the utterly unjustified loophole that
silently dropped ownership qualifiers that were being applied to
ownership-qualified, substituted type that was *not* a substituted
template type parameter. We now provide a diagnostic in such cases,
and recover by dropping the added qualifiers.

Document this behavior in the ARC specification.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133309 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17 23:16:24 +00:00
Douglas Gregor e559ca1672 Objective-ARC++: infer template type arguments of
ownership-unqualified retainable object type as __strong. This allows
us to write, e.g.,

  std::vector<id>

and we'll infer that the vector's element types have __strong
ownership semantics, which is far nicer than requiring:

  std::vector<__strong id>

Note that we allow one to override the ownership qualifier of a
substituted template type parameter, e.g., given

  template<typename T>
  struct X {
    typedef __weak T type;
  };

X<id> is treated the same as X<__strong id>. At instantiation type,
the __weak in "__weak T" overrides the (inferred or specified)
__strong on the template argument type, so that we can still provide
metaprogramming transformations.

This is part of <rdar://problem/9595486>.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133303 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17 22:11:49 +00:00
John McCall f85e193739 Automatic Reference Counting.
Language-design credit goes to a lot of people, but I particularly want
to single out Blaine Garst and Patrick Beard for their contributions.

Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself,
in no particular order.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133103 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15 23:02:42 +00:00
Richard Smith 7a614d8380 Implement support for C++11 in-class initialization of non-static data members.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132878 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-11 17:19:42 +00:00
Richard Trieu bbf34c0243 Made changes to how 'struct'/'class' mismatches are handled in -Wmismatched-tags.
- Removed fix-it hints from template instaniations since changes to the
templates are rarely helpful.
- Changed the caret in template instaniations from the class/struct name to the
class/struct keyword, matching the other warnings.
- Do not offer fix-it hints when multiple declarations disagree.  Warnings are
still given.
- Once a definition is found, offer a fix-it hint to all previous declarations
with wrong tag.
- Declarations that disagree with a previous definition will get a fix-it hint
to change the declaration.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132831 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 03:11:26 +00:00
Tanya Lattner 61eee0ca33 Add support for builtin astype:
__builtin_astype(): Used to reinterpreted as another data type of the same size using for both scalar and vector data types.
Added test case.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132612 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-04 00:47:47 +00:00
Sean Hunt eea06c609b Ensure we enter an unevaluated context when instantiating a noexcept
expression. Fixes bug raised by hhinnant to cfe-dev

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132350 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-31 19:54:49 +00:00
Chandler Carruth e72c55b9a1 Fix a regression in the source locations for unary trait expressions.
I tried to use an assert to prove that I could remove each of the
arguments I did, but ended up writing my assert with inverted logic.
Doh! Reported by Xi Wang on cfe-dev. I have manually verified the source
locations and ranges for these using -ast-dump. I tried writing a test
case that would catch these, but these expressions aren't exposed in the
c-index-test's token annotation utility.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132284 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-29 07:32:14 +00:00
Chandler Carruth 9d342d0121 Add a convenience interface for checking expression arguments to unary
traits which uses the information embedded in the expression. Use this
to simplify several interfaces which repeated information embedded in
the expression through explicit arguments. I added an assertion that the
only extra piece of data to come in from the parser matches what is
stored in the expression. No functionality change intended here.

Also cleaned up the doxygen comments for some of these methods and some
formatting oddities.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132115 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-26 08:53:10 +00:00
Sean Hunt ca63c20034 Implement a new type node, UnaryTransformType, designed to represent a
type that turns one type into another. This is used as the basis to
implement __underlying_type properly - with TypeSourceInfo and proper
behavior in the face of templates.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132017 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-24 22:41:36 +00:00
Douglas Gregor fc92137eee Diagnose unexpanded parameter packs in return statements. This
manifested in a crash with blocks in PR9953, but it was a ticking time
bomb for normal functions, too. Fixes PR9953.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131731 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20 15:32:55 +00:00
Richard Smith 1804174e15 PR9908: Fix the broken fix for PR9902 to get the template argument lists in the right order.
Also, don't reject alias templates in all ElaboratedTypes: some ElaboratedTypes do not correspond to elaborated-type-specifiers.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131342 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14 15:04:18 +00:00
Richard Trieu 00c93a10c3 Patch for PR 7409 - only error on definition of invalid typedefs. Suppress errors for additional uses of this invalid typedef.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131043 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-07 01:36:37 +00:00
Richard Smith 3e4c6c4c79 Implement support for C++0x alias templates.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130953 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 21:57:07 +00:00
Fariborz Jahanian ff365592d1 When instantiating a block expression, the instantiated
blockScopeInfo's CapturesCXXThis field need get set as
well. // rdar://9362021. John M. please review.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130930 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 17:18:12 +00:00
John McCall fb44de956f Store a parameter index and function prototype depth in every
parameter node and use this to correctly mangle parameter
references in function template signatures.

A follow-up patch will improve the storage usage of these
fields;  here I've just done the lazy thing.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130669 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-01 22:35:37 +00:00
John Wiegley 28bbe4b8ac Parsing/AST support for Structured Exception Handling
Patch authored by Sohail Somani.

Provide parsing and AST support for Windows structured exception handling.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130366 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-28 01:08:34 +00:00
John Wiegley 21ff2e516b Implementation of Embarcadero array type traits
Patch authored by John Wiegley.

These are array type traits used for parsing code that employs certain
features of the Embarcadero C++ compiler: __array_rank(T) and
__array_extent(T, Dim).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130351 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-28 00:16:57 +00:00
Chris Lattner 223de2497f fix PR9474, a crash with -fshort-enum and C++ templates: when instantiating
the enum decl, we need to use an integer type the same size as the enumerator,
which may not be the promoted type with packed enums.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130148 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-25 20:37:58 +00:00
John Wiegley 552622067d t/clang/expr-traits
Patch authored by David Abrahams.

These two expression traits (__is_lvalue_expr, __is_rvalue_expr) are used for
parsing code that employs certain features of the Embarcadero C++ compiler.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130122 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-25 06:54:41 +00:00
Argyrios Kyrtzidis 34f52d1474 Fix crashing rdar://9122854 & http://llvm.org/PR9461.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129967 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 01:18:40 +00:00
Richard Smith 162e1c1b48 Support for C++11 (non-template) alias declarations.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129567 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15 14:24:37 +00:00
Peter Collingbourne f111d93572 C1X: implement generic selections
As an extension, generic selection support has been added for all
supported languages.  The syntax is the same as for C1X.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129554 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15 00:35:48 +00:00
Douglas Gregor efdf988611 When we transform a C++ exception declaration (e.g., for template
instantiation), be sure to add the transformed declaration into the
current DeclContext. Also, remove the -Wuninitialized hack that works
around this bug. Fixes <rdar://problem/9200676>.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129544 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-14 22:32:28 +00:00
Richard Smith ad762fcdc1 Add support for C++0x's range-based for loops, as specified by the C++11 draft standard (N3291).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129541 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-14 22:09:26 +00:00
John Wiegley 429bb27699 Use ExprResult& instead of Expr *& in Sema
This patch authored by Eric Niebler.

Many methods on the Sema class (e.g. ConvertPropertyForRValue) take Expr
pointers as in/out parameters (Expr *&).  This is especially true for the
routines that apply implicit conversions to nodes in-place.  This design is
workable only as long as those conversions cannot fail.  If they are allowed
to fail, they need a way to report their failures.  The typical way of doing
this in clang is to use an ExprResult, which has an extra bit to signal a
valid/invalid state.  Returning ExprResult is de riguour elsewhere in the Sema
interface.  We suggest changing the Expr *& parameters in the Sema interface
to ExprResult &.  This increases interface consistency and maintainability.

This interface change is important for work supporting MS-style C++
properties.  For reasons explained here
<http://lists.cs.uiuc.edu/pipermail/cfe-dev/2011-February/013180.html>,
seemingly trivial operations like rvalue/lvalue conversions that formerly
could not fail now can.  (The reason is that given the semantics of the
feature, getter/setter method lookup cannot happen until the point of use, at
which point it may be found that the method does not exist, or it may have the
wrong type, or overload resolution may fail, or it may be inaccessible.)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129143 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-08 18:41:53 +00:00
Chandler Carruth a35d5d7700 Fix an error in TreeTransform where we failed to copy the TemplateName's
location into a TemplateSpecializationTypeLoc. These were found using
a hand-written program to inspect every source location in
TemplateSpecializationTypeLocs and Valgrind. I don't know of any way to
test them in Clang's existing test suite sadly.

Example code that triggers the ElaboratedType case:
  template <typename T> struct X1 {
    template <typename U> struct X1_1 {
      int x;
    };
  };

  template <typename T, typename U> struct X2 {
    typename X1<T>::template X1_1<U> B;
  };

  X2<char, int> x2;

The other fix was simply spotted by inspection. I audited all constructions of
[Dependent]TemplateSpecializationTypeLocs in TreeTransform.h, and the rest set
the TemplateNameLoc properly.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128702 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-01 02:03:23 +00:00
Abramo Bagnara 796aa443ab Forgotten part of previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127536 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-12 11:17:06 +00:00
Abramo Bagnara 06dec892b5 Renamed OffsetOfNode::getRange to getSourceRange for uniformity.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127534 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-12 09:45:03 +00:00
Peter Collingbourne f4e3cfbe8a Add support for the OpenCL vec_step operator, by generalising and
extending the existing support for sizeof and alignof.  Original
patch by Guy Benyei.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127475 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 19:24:49 +00:00
Abramo Bagnara ff676cb48f Fixed source range for all DeclaratorDecl's.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127225 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08 08:55:46 +00:00
Douglas Gregor 944cdae86e When rebuilding a dependent template specialization type to another
dependent template specialization type, make sure to set the keyword
location. Fixes some valgrind issues introduced in r127150.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127159 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07 15:13:34 +00:00
Douglas Gregor 0a0367a479 When transforming a dependent template specialization type, make sure
to set the source-location information for the template arguments to
the *transformed* source-location information, not the original
source-location information. Fixes <rdar://problem/8986308> (a libc++
SFINAE issue) and the Boost.Polygon failure.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127150 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07 02:33:33 +00:00
Douglas Gregor 3c52a218f4 Fix copy-and-paste typo in the transformation of Microsoft __uuidof expressions, from Eric Niebler via John Wiegley
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127123 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-06 17:40:41 +00:00
Douglas Gregor 0b4bcb639a When transforming a substituted template type parameter, try to
transform the type that replaces the template type parameter. In the
vast majority of cases, there's nothing to do, because most template
type parameters are replaced with something non-dependent that doesn't
need further transformation. However, when we're dealing with the
default template arguments of template template parameters, we might
end up replacing a template parameter (of the template template
parameter) with a template parameter of the enclosing template. 
 
This addresses part of PR9016, but not within function
templates. That's a separate issue.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127091 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 17:19:27 +00:00
Abramo Bagnara b6ab6c1ca7 Improved MemberPointerType source locations.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127085 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 14:42:21 +00:00
Douglas Gregor 087eb5a2d3 When constructing source-location information for a
DependentTemplateSpecializationType during tree transformation, retain
the NestedNameSpecifierLoc as it was used to translate the template
name, rather than reconstructing it from the template name.

Fixes PR9401.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127015 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-04 18:53:13 +00:00
Douglas Gregor 67714230a1 When we use the default template arguments of a template template
parameter, save the instantiated default template arguments along with
the explicitly-specified template argument list. That way, we prefer
the default template template arguments corresponding to the template
template parameter rather than those of its template template argument.

This addresses the likely direction of C++ core issue 150, and fixes
PR9353/<rdar://problem/9069136>, bringing us closer to the behavior of
EDG and GCC.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126920 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-03 02:41:12 +00:00
Douglas Gregor 6ebe664174 Eliminate an unnecessary TemporaryBase object from TreeTransform
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126857 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 19:02:55 +00:00
Douglas Gregor 044526fe99 Kill off the
TreeTransform::TransformDependentTemplateSpecializationType() with
poor source-location information handling. All of the
CXXScopeSpec::MakeTrivial() and
NestedNameSpecifierLocBuilder::MakeTrivial() callers actually make
sense now.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126856 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 18:57:38 +00:00
Douglas Gregor d11050fa37 Eliminate TreeTransform::RebuildNestedNameSpecifier(), all four of
them, which are no longer used.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126855 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 18:54:26 +00:00
Douglas Gregor 21e2e60fc0 Eliminate an unnecessary use of CXXScopeSpec::MakeTrivial. We have proper nested-name-specifier source-location information in DependentTemplateSpecializationTypeLocs now
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126854 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 18:52:42 +00:00
Douglas Gregor 9151c11836 Kill off TreeTransform::TransformNestedNameSpecifier() in favor of the
source-location-preserving
TreeTransform::TranformNestedNameSpecifierLoc(). No functionality
change: the victim had no callers (that themselves had callers) anyway.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126853 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 18:50:38 +00:00
Douglas Gregor 1d752d7d68 Kill off the TreeTransform::TransformTemplateName overload that has
poor source-location information.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126852 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 18:46:51 +00:00
Douglas Gregor b71d821d64 Kill off one of the TreeTransform::TransformTypeInObjectScope()
overloads (the one with the poor source-location information).


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126851 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 18:32:08 +00:00
Douglas Gregor fd4ffebd8e Start migrating TreeTransform's TransformTemplateName over to version
that preserve source-location information. This commit adds more
redundancy than it removes; WIP.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126849 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 18:07:45 +00:00
Douglas Gregor b6744efecb Push nested-name-specifier source location information into template
template arguments. I believe that this is the last place in the AST
where we were storing a source range for a nested-name-specifier
rather than a proper nested-name-specifier location structure. (Yay!)

There is still a lot of cleanup to do in the TreeTransform, which
doesn't take advantage of nested-name-specifiers with source-location
information everywhere it could.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126844 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 17:09:35 +00:00
Douglas Gregor 406f98f6a5 When we're substituting into a parameter-type-list nested inside the pattern
of an expansion, and we have a paramameter that is not a parameter
pack, don't suppress substitution of parameter packs within this
context.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126819 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 02:04:06 +00:00
Douglas Gregor 94fdffa4a5 Push nested-name-specifier source-location information into dependent
template specialization types. There are still a few rough edges to
clean up with some of the parser actions dropping
nested-name-specifiers too early.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126776 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 20:11:18 +00:00
Douglas Gregor 9e876876af Reinstate the introduction of source-location information for
nested-name-speciciers within elaborated type names, e.g.,
 
  enum clang::NestedNameSpecifier::SpecifierKind

Fixes in this iteration include:

  (1) Compute the type-source range properly for a dependent template
  specialization type that starts with "template template-id ::", as
  in a member access expression

    dep->template f<T>::f()

  This is a latent bug I triggered with this change (because now we're
  checking the computed source ranges for dependent template
  specialization types). But the real problem was...

  (2) Make sure to set the qualifier range on a dependent template
  specialization type appropriately. This will go away once we push
  nested-name-specifier locations into dependent template
  specialization types, but it was the source of the
  valgrind errors on the buildbots.
  



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126765 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 18:12:44 +00:00
Douglas Gregor 2786864406 Revert r126748, my second attempt at nested-name-specifier source
location information for elaborated types. *sigh*


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126753 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 17:25:47 +00:00
Douglas Gregor be38c5f5d8 Reinstate r126737, extending the generation of type-source location
information for qualifier type names throughout the parser to address
several problems.

The commit message from r126737:

Push nested-name-specifier source location information into elaborated
name types, e.g., "enum clang::NestedNameSpecifier::SpecifierKind".

Aside from the normal changes, this also required some tweaks to the
parser. Essentially, when we're looking at a type name (via
getTypeName()) specifically for the purpose of creating an annotation
token, we pass down the flag that asks for full type-source location
information to be stored within the returned type. That way, we retain
source-location information involving nested-name-specifiers rather
than trying to reconstruct that information later, long after it's
been lost in the parser.

With this change, test/Index/recursive-cxx-member-calls.cpp is showing
much improved results again, since that code has lots of
nested-name-specifiers.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126748 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 16:31:39 +00:00
Douglas Gregor 44cd9f9d68 Revert r126737, the most recent nested-name-specifier location change, for buildbot breakage.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126746 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 15:34:37 +00:00
Douglas Gregor 239cbb023c Push nested-name-specifier source location information into elaborated
name types, e.g., "enum clang::NestedNameSpecifier::SpecifierKind".

Aside from the normal changes, this also required some tweaks to the
parser. Essentially, when we're looking at a type name (via
getTypeName()) specifically for the purpose of creating an annotation
token, we pass down the flag that asks for full type-source location
information to be stored within the returned type. That way, we retain
source-location information involving nested-name-specifiers rather
than trying to reconstruct that information later, long after it's
been lost in the parser.

With this change, test/Index/recursive-cxx-member-calls.cpp is showing
much improved results again, since that code has lots of
nested-name-specifiers.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126737 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 03:11:17 +00:00
Douglas Gregor 2494dd024b Push nested-name-specifier source location information into
DependentNameTypeLoc. Teach the recursive AST visitor and libclang how to
walk DependentNameTypeLoc nodes.

Also, teach libclang about TypedefDecl source ranges, so that we get
those. The massive churn in test/Index/recursive-cxx-member-calls.cpp
is a good thing: we're annotating a lot more of this test correctly
now.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126729 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 01:34:45 +00:00
Douglas Gregor e29425bd22 Teach Sema::CheckTypenameType to use nested-name-specifiers with
source-location information. We don't actually preserve this
information in any of the resulting TypeLocs (yet), so it doesn't
matter.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126693 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28 22:42:13 +00:00
Douglas Gregor 40d96a69c0 Push nested-name-specifier location information into DeclRefExpr and
MemberExpr, the last of the expressions with qualifiers!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126688 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28 21:54:11 +00:00
Douglas Gregor 4c9be89bb6 Push nested-name-specifier source location information into
UnresolvedLookupExpr and UnresolvedMemberExpr.

Also, improve the computation that checks whether the base of a member
expression (either unresolved or dependent-scoped) is implicit. The
previous check didn't cover all of the cases we use in our
representation, which threw off source-location information for these
expressions (which, in turn, caused some breakage in libclang's token
annotation). 



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126681 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28 20:01:57 +00:00
Douglas Gregor 7c3179cf46 Push nested-name-specifier source location information into
CXXDependentScopeMemberExpr, and clean up instantiation of
nested-name-specifiers with dependent template specialization types in
the process.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126663 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28 18:50:33 +00:00
Douglas Gregor a88f09f34e Eliminate the last remains of TemplateSpecializationTypes with
dependent template names. There is still a lot of redundant code in
TreeTransform to cope with TemplateSpecializationTypes, which I'll
remove in stages.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126656 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28 17:23:35 +00:00
Douglas Gregor aa2187de13 When we encounter a dependent template name within a
nested-name-specifier, e.g., 

  T::template apply<U>::

represent the dependent template name specialization as a
DependentTemplateSpecializationType, rather than a
TemplateSpecializationType with a dependent TemplateName.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126593 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28 00:04:36 +00:00
Douglas Gregor 00cf3cc271 Push nested-name-specifier source location information into
DependentScopeDeclRefExpr. Plus, give NestedNameSpecifierLoc == and !=
operators, since we're going to need 'em elsewhere.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126508 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-25 20:49:16 +00:00
Douglas Gregor f3db29fff6 Push nested-name-specifier source-location information into
pseudo-destructor expressions. Also, clean up some
template-instantiation and type-checking issues with
pseudo-destructors.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126498 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-25 18:19:59 +00:00
Douglas Gregor c22b5fff39 Use NestedNameSpecifierLoc within out-of-line variables, function, and
tag definitions. Also, add support for template instantiation of
NestedNameSpecifierLocs.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126470 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-25 02:25:35 +00:00
Douglas Gregor c34348a7ef Retain complete source-location information for C++
nested-name-specifiers throughout the parser, and provide a new class
(NestedNameSpecifierLoc) that contains a nested-name-specifier along
with its type-source information.

Right now, this information is completely useless, because we don't
actually store the source-location information anywhere in the
AST. Call this Step 1/N.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126391 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 17:54:50 +00:00
Douglas Gregor 14aba76042 Teach NestedNameSpecifier to keep track of namespace aliases the same
way it keeps track of namespaces. Previously, we would map from the
namespace alias to its underlying namespace when building a
nested-name-specifier, losing source information in the process.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126358 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 02:36:08 +00:00
Douglas Gregor 9ddba32f25 Tweak the CXXScopeSpec API a bit, so that we require the
nested-name-specifier and source range to be set at the same time.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126347 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 00:49:34 +00:00
Douglas Gregor 2e4c34ac53 Teach CXXScopeSpec to handle the extension of a nested-name-specifier
with another component in the nested-name-specifiers, updating its
representation (a NestedNameSpecifier) and source-location information
(currently a SourceRange) simultaneously. This is groundwork for
adding source-location information to nested-name-specifiers.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126346 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 00:17:56 +00:00
Richard Smith 406c38e8c1 Fix PR9276: We were missing the checks for auto deducing to different types in the same declaration group in the template instantiation case.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126279 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23 00:37:57 +00:00
Richard Smith 34b41d939a Implement the C++0x deduced 'auto' feature.
This fixes PR 8738, 9060 and 9132.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126069 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 03:19:35 +00:00
Chris Lattner 57ad37823e Step #2/N of __label__ support: keep pushing LabelDecl forward,
making them be template instantiated in a more normal way and 
make them handle attributes like other decls.

This fixes the used/unused label handling stuff, making it use
the same infrastructure as other decls.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125771 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17 20:34:02 +00:00
John McCall 56ca35d396 Change the representation of GNU ?: expressions to use a different expression
class and to bind the shared value using OpaqueValueExpr.  This fixes an
unnoticed problem with deserialization of these expressions where the
deserialized form would lose the vital pointer-equality trait;  or rather,
it fixes it because this patch also does the right thing for deserializing
OVEs.

Change OVEs to not be a "temporary object" in the sense that copy elision is
permitted.

This new representation is not totally unawkward to work with, but I think
that's really part and parcel with the semantics we're modelling here.  In
particular, it's much easier to fix things like the copy elision bug and to
make the CFG look right.

I've tried to update the analyzer to deal with this in at least some          
obvious cases, and I think we get a much better CFG out, but the printing
of OpaqueValueExprs probably needs some work.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125744 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17 10:25:35 +00:00
Chris Lattner ad8dcf4a9d Step #1/N of implementing support for __label__: split labels into
LabelDecl and LabelStmt.  There is a 1-1 correspondence between the
two, but this simplifies a bunch of code by itself.  This is because
labels are the only place where we previously had references to random
other statements, causing grief for AST serialization and other stuff.

This does cause one regression (attr(unused) doesn't silence unused
label warnings) which I'll address next.

This does fix some minor bugs:
1. "The only valid attribute " diagnostic was capitalized.
2. Various diagnostics printed as ''labelname'' instead of 'labelname'
3. This reduces duplication of label checking between functions and blocks.

Review appreciated, particularly for the cindex and template bits.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125733 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17 07:39:24 +00:00
Peter Collingbourne e08ce650a2 AST, Sema, Serialization: add CUDAKernelCallExpr and related semantic actions
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125217 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09 21:07:24 +00:00
John McCall 63c00d7f35 Remove vtables from the Stmt hierarchy; this was pretty easy as
there were only three virtual methods of any significance.

The primary way to grab child iterators now is with
  Stmt::child_range children();
  Stmt::const_child_range children() const;
where a child_range is just a std::pair of iterators suitable for
being llvm::tie'd to some locals.  I've left the old child_begin()
and child_end() accessors in place, but it's probably a substantial
penalty to grab the iterators individually now, since the
switch-based dispatch is kindof inherently slower than vtable
dispatch.  Grabbing them together is probably a slight win over the
status quo, although of course we could've achieved that with vtables, too.

I also reclassified SwitchCase (correctly) as an abstract Stmt
class, which (as the first such class that wasn't an Expr subclass)
required some fiddling in a few places.

There are somewhat gross metaprogramming hooks in place to ensure
that new statements/expressions continue to implement
getSourceRange() and children().  I had to work around a recent clang
bug;  dgregor actually fixed it already, but I didn't want to
introduce a selfhosting dependency on ToT.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125183 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09 08:16:59 +00:00
John McCall 6b5a61b6dc A few more tweaks to the blocks AST representation:
- BlockDeclRefExprs always store VarDecls
  - BDREs no longer store copy expressions
  - BlockDecls now store a list of captured variables, information about
    how they're captured, and a copy expression if necessary
    
With that in hand, change IR generation to use the captures data in       
blocks instead of walking the block independently.        

Additionally, optimize block layout by emitting fields in descending
alignment order, with a heuristic for filling in words when alignment
of the end of the block header is insufficient for the most aligned
field.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125005 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-07 10:33:21 +00:00
John McCall c6ac9c3d75 Assert during instantiation of blocks that we've captured everything that
we captured in the dependent case.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124887 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 18:33:18 +00:00
Douglas Gregor c938c1668b Rvalue references for *this:
- Add ref-qualifiers to the type system; they are part of the
  canonical type. Print & profile ref-qualifiers
  - Translate the ref-qualifier from the Declarator chunk for
    functions to the function type. 
  - Diagnose mis-uses of ref-qualifiers w.r.t. static member
  functions, free functions, constructors, destructors, etc.
  - Add serialization and deserialization of ref-qualifiers.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124281 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26 05:01:58 +00:00
Douglas Gregor c21c7e9c2c Teach TemplateSpecializationTypeLoc::initializeArgLocs() to actually
generate meaningful [*] template argument location information.

[*] Well, as meaningful as possible, given that this entire code path
is a hack for when we've lost type-source information.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124211 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25 19:13:18 +00:00
Douglas Gregor ae201f75e5 Be a bit more defensive about setting the temporary base location
during template instantiation. This code needs to eventually die, but
this little tweak fixes PR8629, where bad location information slipped
through to the location of a class template instantiation.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124199 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25 17:51:48 +00:00
Nick Lewycky 446e4029c7 Enhance the diagnostic for referring to a typedef with an elaborated name to be
as useful in a templated context as it is without templates. Fixes PR8755!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124136 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-24 19:01:04 +00:00
Douglas Gregor a779d9ca2f Implement basic support for the use of variadic templates and blocks
together. In particular: 
  - Handle the use of captured parameter pack names within blocks
  (BlockDeclRefExpr understands parameter packs now)
  - Handle the declaration and expansion of parameter packs within a block's
  parameter list, e.g., ^(Args ...args) { ... })
  - Handle instantiation of blocks where the return type was not
  explicitly specified. (unrelated, but necessary for my tests).

Together, these fixes should make blocks and variadic templates work
reasonably well together. Note that BlockDeclRefExpr is still broken
w.r.t. its computation of type and value dependence, which will still
cause problems for blocks in templates.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123849 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19 21:32:01 +00:00
John McCall 3b6575108a Change the canonical representation of array types to store qualifiers on the
outermost array types and not on the element type.  Move the CanonicalType
member from Type to ExtQualsTypeCommonBase;  the canonical type on an ExtQuals
node includes the qualifiers on the ExtQuals.  Assorted optimizations enabled
by this change.

getQualifiers(), hasQualifiers(), etc. should all now implicitly look through
array types.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123817 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19 10:06:00 +00:00
John McCall f4c7371fb1 Change QualType::getTypePtr() to return a const pointer, then change a
thousand other things which were (generally inadvertantly) relying on that.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123814 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19 06:33:43 +00:00