Commit Graph

680 Commits

Author SHA1 Message Date
Richard Smith 30482bc786 Implement the C++0x deduced 'auto' feature.
This fixes PR 8738, 9060 and 9132.

llvm-svn: 126069
2011-02-20 03:19:35 +00:00
Ken Dyck d24099de04 Add const qualifier to getTypeInfoInChars().
llvm-svn: 126064
2011-02-20 01:55:18 +00:00
Chris Lattner 29eb47bd68 Fix PR9253, allowing attribute(aligned) to reduce the alignment of
a typedef.

llvm-svn: 126059
2011-02-19 22:55:41 +00:00
Ken Dyck 7ad11e70b6 Convert RecordLayout::Alignment to CharUnits from bit units. No change in
functionality intended. 

llvm-svn: 125549
2011-02-15 02:32:40 +00:00
Fariborz Jahanian 178259710a Fix a block sema bug where result type of initializer
is unqualified but its initialized is qualified.
This is for c only and fixes the imm. problem.
c++ is more involved and is wip.
// rdar://8979379

llvm-svn: 125386
2011-02-11 18:46:17 +00:00
Ken Dyck b0fcc59e19 Add a helper function, ASTContext::toBits(), that converts sizes in
CharUnits to sizes in bits, and use it to tidy up the places where the
conversion was done explicitly.

llvm-svn: 125332
2011-02-11 01:54:29 +00:00
John McCall f768aa7613 Move the check that gives functions with unique-external types unique-external
linkage into Decl.cpp.  Disable this logic for extern "C" functions, because
the operative rule there is weaker.  Fixes rdar://problem/8898466

llvm-svn: 125268
2011-02-10 06:50:24 +00:00
Peter Collingbourne 9e2c81f00a AST, Sema, Serialization: keep track of cudaConfigureCall
llvm-svn: 125216
2011-02-09 21:04:32 +00:00
Ken Dyck c8ae55050d Convert RecordLayout::Size to CharUnits from bits. No changes to
functionality intended.

llvm-svn: 125156
2011-02-09 01:59:34 +00:00
John McCall 351762cda2 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.

llvm-svn: 125005
2011-02-07 10:33:21 +00:00
Abramo Bagnara 92141d22ce Fixed parameter names.
llvm-svn: 124408
2011-01-27 19:55:10 +00:00
Douglas Gregor 2d525f08c2 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.

llvm-svn: 124211
2011-01-25 19:13:18 +00:00
John McCall 4e81961a1e Fix the computation of alignment for fields of packed+aligned structs.
Part of the fix for PR8413.

llvm-svn: 123904
2011-01-20 07:57:12 +00:00
Douglas Gregor 0231d8dac7 Implement support for non-type template parameter packs whose type is
a pack expansion, e.g., the parameter pack Values in:

  template<typename ...Types>
  struct Outer {
    template<Types ...Values>
    struct Inner;
  };

This new implementation approach introduces the notion of an
"expanded" non-type template parameter pack, for which we have already
expanded the types of the parameter pack (to, say, "int*, float*",
for Outer<int*, float*>) but have not yet expanded the values. Aside
from creating these expanded non-type template parameter packs, this
patch updates template argument checking and non-type template
parameter pack instantiation to make use of the appropriate types in
the parameter pack.

llvm-svn: 123845
2011-01-19 20:10:05 +00:00
John McCall 33ddac05bb 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.

llvm-svn: 123817
2011-01-19 10:06:00 +00:00
John McCall 424cec97bd Change QualType::getTypePtr() to return a const pointer, then change a
thousand other things which were (generally inadvertantly) relying on that.

llvm-svn: 123814
2011-01-19 06:33:43 +00:00
John McCall 0654946268 Fix some unnecessarily complicated code for canonicalizing variably-modified
parameter types.

llvm-svn: 123753
2011-01-18 08:40:38 +00:00
John McCall 6c9dd52a09 Generalize some operations on qualifiers. QualType::getQualifiers() and
::getCVRQualifiers() now look through array types, like all the other
standard queries.  Also, make a 'split' variant of getUnqualifiedType().

llvm-svn: 123751
2011-01-18 07:41:22 +00:00
Ken Dyck cc56c54889 Add toCharUnitsInBits() to simplify the many calls to CharUnits::fromQuantity() of the form CharUnits::fromQuantity(bitSize, Context.getCharWidth()).
llvm-svn: 123542
2011-01-15 18:38:59 +00:00
Douglas Gregor 5590be0491 Introduce a new kind of TemplateName that captures a substituted
template template parameter pack that cannot be fully expanded because
its enclosing pack expansion could not be expanded. This form of
TemplateName plays the same role as SubstTemplateTypeParmPackType and
SubstNonTypeTemplateParmPackExpr do for template type parameter packs
and non-type template parameter packs, respectively.

We should now handle these multi-level pack expansion substitutions
anywhere. The largest remaining gap in our variadic-templates support
is that we cannot cope with non-type template parameter packs whose
type is a pack expansion.

llvm-svn: 123521
2011-01-15 06:45:20 +00:00
Douglas Gregor e1d60df0fc Teach template template argument pack expansions to keep track of the
number of expansions, when we know it, and propagate that information
through Sema.

llvm-svn: 123493
2011-01-14 23:41:42 +00:00
Douglas Gregor 0dca5fdb4e Keep track of the number of expansions to be produced from a type pack
expansion, when it is known due to the substitution of an out
parameter pack. This allows us to properly handle substitution into
pack expansions that involve multiple parameter packs at different
template parameter levels, even when this substitution happens one
level at a time (as with partial specializations of member class
templates and the signatures of member function templates).

Note that the diagnostic we provide when there is an arity mismatch
between an outer parameter pack and an inner parameter pack in this
case isn't as clear as the normal diagnostic for an arity
mismatch. However, this doesn't matter because these cases are very,
very rare and (even then) only typically occur in a SFINAE context.

The other kinds of pack expansions (expression, template, etc.) still
need to support optional tracking of the number of expansions, and we
need the moral equivalent of SubstTemplateTypeParmPackType for
substituted argument packs of template template and non-type template
parameters.

llvm-svn: 123448
2011-01-14 17:04:44 +00:00
Douglas Gregor ada4b79947 Start implementing support for substitution into pack expansions that
involve template parameter packs at multiple template levels that
occur within the signatures members of class templates (and partial
specializations thereof). This is a work-in-progress that is deficient
in several ways, notably:
  - It only works for template type parameter packs, but we need to
  also support non-type template parameter packs and template template
  parameter packs.
  - It doesn't keep track of the lengths of the substituted argument
  packs in the expansion, so it can't properly diagnose length
  mismatches.

However, this is a concrete step in the right direction.

llvm-svn: 123425
2011-01-14 02:55:32 +00:00
Peter Collingbourne 0ff0b37627 Move name mangling support from CodeGen to AST. In the
process, perform a number of refactorings:

- Move MiscNameMangler member functions to MangleContext
- Remove GlobalDecl dependency from MangleContext
- Make MangleContext abstract and move Itanium/Microsoft functionality
  to their own classes/files
- Implement ASTContext::createMangleContext and have CodeGen use it

No (intended) functionality change.

llvm-svn: 123386
2011-01-13 18:57:25 +00:00
Jay Foad 39c7980772 PR3558: mark "logically const" accessor methods in ASTContext as const,
and mark the fields they use as mutable. This allows us to remove a few
const_casts.

llvm-svn: 123314
2011-01-12 09:06:06 +00:00
John McCall 553d45aaf3 Slight bugfix to the attribute-distribution logic for GC attributes.
Slight optimization of getObjCGCAttrKind.

llvm-svn: 123295
2011-01-12 00:34:59 +00:00
John McCall 8190451ddc Introduce an AttributedType, but don't actually use it anywhere yet.
The initial TreeTransform is a cop-out, but it's more-or-less equivalent
to what we were doing before, or rather what we're doing now and might
eventually stop doing in favor of using this type.
I am simultaneously intrigued by the possibilities of rebuilding a
dependent Attri

llvm-svn: 122942
2011-01-06 01:58:22 +00:00
Douglas Gregor e4ff4b56fe Replace the representation of template template argument pack
expansions with something that is easier to use correctly: a new
template argment kind, rather than a bit on an existing kind. Update
all of the switch statements that deal with template arguments, fixing
a few latent bugs in the process. I"m happy with this representation,
now.

And, oh look! Template instantiation and deduction work for template
template argument pack expansions.

llvm-svn: 122896
2011-01-05 18:58:31 +00:00
Douglas Gregor f550077ef5 Implement support for template template parameter packs, e.g.,
template<template<class> class ...Metafunctions>
    struct apply_to_each;

llvm-svn: 122874
2011-01-05 15:48:55 +00:00
David Chisnall 50e4ebaeb8 Expose Objective-C type encodings of declarations to libclang users. This also adds a method in ASTContext which encodes FunctionDecls using the same encoding format that is used for Objective-C methods.
llvm-svn: 122639
2010-12-30 14:05:53 +00:00
David Chisnall 6f0a7d224b Fix for PR8695.
llvm-svn: 122564
2010-12-26 20:12:30 +00:00
Chris Lattner ad3467ee89 The -fshort-wchar option causes wchar_t to become unsigned, in addition to being
16-bits in size.  Implement this by splitting WChar into two enums, like we have
for char.  This fixes a miscompmilation of XULRunner, PR8856.

llvm-svn: 122558
2010-12-25 23:25:43 +00:00
John McCall 53fa71476d Refactor how we collect attributes during parsing, and add slots for attributes
on array and function declarators.  This is pretty far from complete, and I'll
revisit it later if someone doesn't beat me to it.

llvm-svn: 122535
2010-12-24 02:08:15 +00:00
Douglas Gregor da3cc0d3bf Add an AST representation for non-type template parameter
packs, e.g.,

  template<typename T, unsigned ...Dims> struct multi_array;

along with semantic analysis support for finding unexpanded non-type
template parameter packs in types, expressions, and so on.

Template instantiation involving non-type template parameter packs
probably doesn't work yet. That'll come soon.

llvm-svn: 122527
2010-12-23 23:51:58 +00:00
Jeffrey Yasskin b3321531a8 Change all self assignments X=X to (void)X, so that we can turn on a
new gcc warning that complains on self-assignments and
self-initializations.  Fix one bug found by the warning, in which one
clang::OverloadCandidate constructor failed to initialize its
FunctionTemplate member.

llvm-svn: 122459
2010-12-23 01:01:28 +00:00
John McCall 991eb4b319 Fix the noreturn conversion to only strip off a single level of indirection.
Apply the noreturn attribute while creating a builtin function's type.
Remove the getNoReturnType() API.

llvm-svn: 122295
2010-12-21 00:44:39 +00:00
Douglas Gregor 0192c234d5 Clean up the handling of template argument packs, especially in the
area of printing template arguments. The functionality changes here
are limited to cases of variadic templates that aren't yet enabled.

llvm-svn: 122250
2010-12-20 16:52:59 +00:00
Douglas Gregor d2fa766ad0 Introduce a new type, PackExpansionType, to capture types that are
pack expansions, e.g. given

  template<typename... Types> struct tuple;

  template<typename... Types>
  struct tuple_of_refs {
    typedef tuple<Types&...> types;
  };

the type of the "types" typedef is a PackExpansionType whose pattern
is Types&. 

This commit introduces support for creating pack expansions for
template type arguments, as above, but not for any other kind of pack
expansion, nor for any form of instantiation.

llvm-svn: 122223
2010-12-20 02:24:11 +00:00
John McCall 4f5019e670 Motions towards simplifying how we deal with attribute-qualified function types.
llvm-svn: 122162
2010-12-19 02:44:49 +00:00
John McCall 8c6b56f39d Function types are compatible (in the C sense) if their regparms are identical.
llvm-svn: 121821
2010-12-15 01:06:38 +00:00
John McCall db40c7f573 Restore r121752 without modification.
llvm-svn: 121763
2010-12-14 08:05:40 +00:00
John McCall 5546da68bb Pull out r121752 in case it's causing the selfhost breakage.
llvm-svn: 121759
2010-12-14 07:30:51 +00:00
John McCall aa6d98c160 Factor out most of the extra state in a FunctionProtoType into a separate
class to be passed around.  The line between argument and return types and
everything else is kindof vague, but I think it's justifiable.

llvm-svn: 121752
2010-12-14 06:51:39 +00:00
Abramo Bagnara 924a8f3573 Added ParenType type node.
llvm-svn: 121488
2010-12-10 16:29:40 +00:00
John McCall 717d9b0e2f It's kindof silly that ExtQuals has an ASTContext&, and we can use that
space better.  Remove this reference.  To make that work, change some APIs
(most importantly, getDesugaredType()) to take an ASTContext& if they
need to return a QualType.  Simultaneously, diminish the need to return a
QualType by introducing some useful APIs on SplitQualType, which is
just a std::pair<const Type *, Qualifiers>.

llvm-svn: 121478
2010-12-10 11:01:00 +00:00
Douglas Gregor 643526f086 Move the "volatile" bit into QualType's "fast" qualifier set,
increasing the required type alignment from 8 to 16. This provides a
2.5% speedup for -fsyntax-only on a token-cached Cocoa.h, while only
increasing memory consumption in the ASTContext by 0.8%.

llvm-svn: 121474
2010-12-10 08:57:38 +00:00
Jay Foad 6d4db0c885 PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() and
zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method
trunc(), to be const and to return a new value instead of modifying the
object in place.

llvm-svn: 121121
2010-12-07 08:25:34 +00:00
Fariborz Jahanian 1321cbbd87 Add BlocksAttr assert on __block specific
routines.

llvm-svn: 121007
2010-12-06 17:28:17 +00:00
Peter Collingbourne 19b961d5f9 Merge transparent union types using member's unqualified type
llvm-svn: 120736
2010-12-02 21:00:06 +00:00
Peter Collingbourne 102ad54099 Merge transparent union types using member's canonical param type
llvm-svn: 120729
2010-12-02 20:02:29 +00:00