Commit Graph

7040 Commits

Author SHA1 Message Date
Jeffrey Yasskin
823015d627 When a template (without arguments) is passed as a template type
parameter, explicitly ask the user to give it arguments.  We used to
complain that it wasn't a type and expect the user to figure it out.

llvm-svn: 100729
2010-04-08 00:03:06 +00:00
Eric Christopher
75553d9de5 Add support for stpncpy_chk.
llvm-svn: 100711
2010-04-07 23:00:44 +00:00
Chris Lattner
b35583df52 add a new driver-level -ferror-limit=412 option, which causes clang to stop
emitting diagnostics after it has produced that many errors.  Give this a
default value of 20 which produces plenty of errors for people to fix before
recompiling but not so many that their entire console scrolls away when the
compiler gets confused.  The experience looks like this:

$ clang foo.c
<tons of crap>
foo.c:102:3: error: unknown type name 'somethingbad'
  somethingbad x;
  ^
fatal error: too many errors emitted, stopping now
36 warnings and 20 errors generated.

llvm-svn: 100689
2010-04-07 20:49:23 +00:00
Chris Lattner
dec49e77e5 add clang -cc1 level support for "-ferror-limit 42"
llvm-svn: 100687
2010-04-07 20:37:06 +00:00
Chris Lattner
75a0393eb5 add capabilities to stop emitting errors after some limit.
Right now the limit is 0 (aka disabled)

llvm-svn: 100684
2010-04-07 20:21:58 +00:00
Chris Lattner
198cb4df6e Instead of counting totally diagnostics, split the count into a count
of errors and warnings.  This allows us to emit something like this:

2 warnings and 1 error generated.

instead of:

3 diagnostics generated.

This also stops counting 'notes' because they are just follow-on information
about the previous diag, not a diagnostic in themselves.

llvm-svn: 100675
2010-04-07 18:47:42 +00:00
Douglas Gregor
3b4abb6792 Improve handling of friend types in several ways:
- When instantiating a friend type template, perform semantic
  analysis on the resulting type.
  - Downgrade the errors concerning friend type declarations that do
  not refer to classes to ExtWarns in C++98/03. C++0x allows
  practically any type to be befriended, and ignores the friend
  declaration if the type is not a class.

llvm-svn: 100635
2010-04-07 17:57:12 +00:00
Zhongxing Xu
7614b5b475 Fix comment.
llvm-svn: 100604
2010-04-07 04:40:26 +00:00
Jeffrey Yasskin
3b54129419 Deprecate CXXScopeSpec::isSet() in favor of isNotEmpty() or isValid().
llvm-svn: 100600
2010-04-07 01:55:59 +00:00
John McCall
8e36d53e34 Check access for the implicit calls to destructors that occur when we
have a temporary object in C++.

Also fix a tag mismatch that Doug noticed.

llvm-svn: 100593
2010-04-07 00:41:46 +00:00
Fariborz Jahanian
ea7a133775 Improve on diagnostics when an objc class is used as
a stand-alone type declaration.

llvm-svn: 100588
2010-04-07 00:22:00 +00:00
Douglas Gregor
636a61e0d2 Implement code completion for Objective-C method declarations and
definitions, e.g., after 

  -

or

  - (id)

we'll find all of the "likely" instance methods that one would want to
declare or define at this point. In the latter case, we only produce
results whose return types match "id".

llvm-svn: 100587
2010-04-07 00:21:17 +00:00
John McCall
2351cb9139 Devote a special diagnostic to the typo
(void*) someFunction(5, 10, 15, 20);
where the cast is presumably meant to be to 'void'.

llvm-svn: 100574
2010-04-06 22:24:14 +00:00
John McCall
a8ae222d0e Implement the protected access restriction ([class.protected]), which requires
that protected members be used on objects of types which derive from the
naming class of the lookup.  My first N attempts at this were poorly-founded,
largely because the standard is very badly worded here.

llvm-svn: 100562
2010-04-06 21:38:20 +00:00
Chris Lattner
5ec32e7fd8 teach clang to install the inline asm diagnostic handler,
allowing backend errors to be mapped through clang's 
diagnostics subsystem, including the backend location info.

We now get:

$ clang asm.c -c -o t.o -integrated-as
<inline asm>:1:2: error: unrecognized instruction
        abc incl    %eax
        ^
1 diagnostic generated.

With colors, and correct "# diagnostics generated".

llvm-svn: 100543
2010-04-06 18:38:50 +00:00
Douglas Gregor
d720daf8bc Make code-completion for Objective-C message sends to "id" work in the
presence of precompiled headers by forcibly loading all of the
methods we know about from the PCH file before constructing our
code-completion list.

llvm-svn: 100535
2010-04-06 17:30:22 +00:00
Daniel Dunbar
3d45e17d15 Driver: Add a Tool::hasGoodDiagnostics hook, and use it to simplify logic for
deciding when we need to emit an extra "command failed" diagnostic.
 - This also fixes the case where we were emitting that extra diagnostics, even
   when using clang w/ the integrated assembler, which has good diagnostics.

llvm-svn: 100529
2010-04-06 17:07:49 +00:00
Douglas Gregor
7f95d26e53 Make Diagnostic reference-counted, which is simpler than juggling
maybe-ownership vs. ownership.

llvm-svn: 100498
2010-04-05 23:52:57 +00:00
Douglas Gregor
cf04b02d1d Extend the type printing policy to allow one to turn off the printing
of file locations for anonymous tag types (e.g., "enum <anonymous at
t.h:15:6>"), which can get rather long.

llvm-svn: 100470
2010-04-05 21:25:31 +00:00
Douglas Gregor
d03e823fb4 Clarify the ownership semantics of the Diagnostic object used by
ASTUnit. Previously, we would end up with use-after-free errors
because the Diagnostic object would be creating in one place (say,
CIndex) and its ownership would not be transferred into the
ASTUnit. Fixes <rdar://problem/7818608>.

llvm-svn: 100464
2010-04-05 21:10:19 +00:00
Douglas Gregor
a0bc68b647 Make the ASTUnit constructor private; all ASTUnit clients should be using the static factory functions
llvm-svn: 100444
2010-04-05 18:20:14 +00:00
Chris Lattner
005fc1bbcf fix PR6782, an accept invalid. We weren't emitting the diagnostic
returned by SetTypeSpecType.

llvm-svn: 100443
2010-04-05 18:18:31 +00:00
Douglas Gregor
a2433154c8 Minor ASTUnit cleanups:
- Rename "Diagnostics" and related to "StoredDiagnostics", to better
  capture what we're actually storing.
  - Move SourceManager and FileManager to the heap.

llvm-svn: 100441
2010-04-05 18:10:21 +00:00
Eric Christopher
e1ddaf911b Add option and macro definition for AES instructions. Now produces real
assembly for testcases.

llvm-svn: 100253
2010-04-02 23:50:19 +00:00
Fariborz Jahanian
d077f719be Improve diagnosing when a method type does not start with '-'|'+'
when parsing. Fixes radar 7822196.

llvm-svn: 100248
2010-04-02 23:15:40 +00:00
Daniel Dunbar
89947ea894 AST: Add ObjCIvarDecl::getContainingInterface().
llvm-svn: 100227
2010-04-02 21:13:59 +00:00
Fariborz Jahanian
e16cdb407a diagnose declaring class extension after its implementation
(radar 7822210).

llvm-svn: 100226
2010-04-02 20:53:05 +00:00
Daniel Dunbar
fe3ead7c48 Sema/Obj-C: Narrow type of ObjCIvarDecl::Create, and check additional invariants on the provided DeclContext.
- Doug, please see the FIXME in DeclObjC.cpp -- I am not sure what the right fix is.

llvm-svn: 100213
2010-04-02 20:10:03 +00:00
Douglas Gregor
45cf7e3d2a Rework our handling of copy construction of temporaries, which was a
poor (and wrong) approximation of the actual rules governing when to
build a copy and when it can be elided.

The correct implementation is actually simpler than the
approximation. When we only enumerate constructors as part of
initialization (e.g., for direct initialization or when we're copying
from a class type or one of its derived classes), we don't create a
copy. When we enumerate all conversion functions, we do create a
copy. Before, we created some extra copies and missed some
others. The new test copy-initialization.cpp shows a case where we
missed creating a (required, non-elidable) copy as part of a
user-defined conversion, which resulted in a miscompile. This commit
also fixes PR6757, where the missing copy made us reject well-formed
code in the ternary operator.

This commit also cleans up our handling of copy elision in the case
where we create an extra copy of a temporary object, which became
necessary now that we produce the right copies. The code that seeks to
find the temporary object being copied has moved into
Expr::getTemporaryObject(); it used to have two different
not-quite-the-same implementations, one in Sema and one in CodeGen.

Note that we still do not attempt to perform the named return value
optimization, so we miss copy elisions for return values and throw
expressions.

llvm-svn: 100196
2010-04-02 18:24:57 +00:00
Chandler Carruth
4a70ae54b4 Resolve a layering violation by making AddTaggedVal public for
PartialDiagnostic objects, and hoisting the stream operator for QualType into
Type.h with the operator for the normal DiagnosticBuilder. Also remove the no
longer needed friend declaration for the DeclarationName stream operator.

llvm-svn: 100169
2010-04-02 01:39:03 +00:00
Douglas Gregor
b242683d99 Overhaul checking of non-type template arguments that should refer to
an object or function. Our previous checking was too lax, and ended up
allowing missing or extraneous address-of operators, among other
evils. The new checking provides better diagnostics and adheres more
closely to the standard.

Fixes PR6563 and PR6749.

llvm-svn: 100125
2010-04-01 18:32:35 +00:00
Daniel Dunbar
e43887bd2b Driver: Add support for a CLANGXX_IS_PRODUCTION build variable, which enable
Clang++ support, even in "Production" mode (for testing purposes).

llvm-svn: 100119
2010-04-01 18:21:41 +00:00
Zhongxing Xu
920070cfe7 Initial support for visiting CXXMemberCallExpr.
llvm-svn: 100098
2010-04-01 07:58:50 +00:00
Eric Christopher
5464e5ae00 First start at wmmintrin.h file with Intel AES-NI instructions.
llvm-svn: 100077
2010-04-01 03:03:35 +00:00
Douglas Gregor
f5af3584ca Improve diagnostics when an elaborated-type-specifer containing a
nested-name-specifier (e.g., "class T::foo") fails to find a tag
member in the scope nominated by the
nested-name-specifier. Previously, we gave a bland

  error: 'Nested' does not name a tag member in the specified scope

which didn't actually say where we were looking, which was rather
horrible when the nested-name-specifier was instantiated. Now, we give
something a bit better:

  error: no class named 'Nested' in 'NoDepBase<T>'

llvm-svn: 100060
2010-03-31 23:17:41 +00:00
Douglas Gregor
e677dafce1 Change the representation of dependent elaborated-type-specifiers
(such as "class T::foo") from an ElaboratedType of a TypenameType to a
DependentNameType, which more accurately models the underlying
concept.

Improve template instantiation for DependentNameType nodes that
represent nested-name-specifiers, by performing tag name lookup and
checking the resulting tag appropriately. Fixes PR5681.

There is still much testing and cleanup to do in this area.

llvm-svn: 100054
2010-03-31 22:19:08 +00:00
Douglas Gregor
0208535fda Extend DependentNameType with a keyword enum that specifies whether
this was parsed as a typename-specifier, elaborated-type-specifier
(including the kind), or just a dependent qualified type name.

llvm-svn: 100039
2010-03-31 20:19:30 +00:00
Ted Kremenek
b43e06fa56 For reverse data flow analyses, enqueue the blocks in reverse order.
This more likely matches with the ideal order the blocks should be visited.
This shaves another 1% off the -fsyntax-only time for compare.c (403.gcc).

llvm-svn: 100030
2010-03-31 18:45:04 +00:00
Fariborz Jahanian
c1fb862fda Patch implements gcc's -Wno-protocol option to suppress warning
on unimplemented methods in protocols adopted by a class.
(radar 7056600).

llvm-svn: 100028
2010-03-31 18:23:33 +00:00
Douglas Gregor
d7d70e4788 Remove the AST statistics tracking I added yesterday; it didn't pan out.
llvm-svn: 100027
2010-03-31 18:21:31 +00:00
Ted Kremenek
8a47a38b3f Tweak DataFlowSolver's worklist data structure to have an ordered worklist
and a DenseSet for caching instead of using a single SmallPtrSet.
This makes the behavior of the DataFlowSolver more deterministic, and
reduces the -fsyntax-only time on compare.c (403.gcc) by 1%.

llvm-svn: 100026
2010-03-31 18:16:59 +00:00
Douglas Gregor
a771f46c82 Reinstate my CodeModificationHint -> FixItHint renaming patch, without
the C-only "optimization".

llvm-svn: 100022
2010-03-31 17:46:05 +00:00
Douglas Gregor
c1d2d8a014 Rename TypenameType to DependentNameType in anticipation of some
refactoring work in this area.

llvm-svn: 100019
2010-03-31 17:34:00 +00:00
Douglas Gregor
30e631862f Revert r100008, which inexplicably breaks the clang-i686-darwin10 builder
llvm-svn: 100018
2010-03-31 17:25:35 +00:00
Douglas Gregor
3baad0d4f7 Rename CodeModificationHint to FixItHint, since we've been using the
term "fix-it" everywhere and even *I* get tired of long names
sometimes. No functionality change.

llvm-svn: 100008
2010-03-31 15:31:50 +00:00
Benjamin Kramer
9e2e1c9024 Minor include pruning.
llvm-svn: 100007
2010-03-31 15:04:05 +00:00
Jeffrey Yasskin
cd028b14ea Define "exploded graph" by reference to a paper.
llvm-svn: 99990
2010-03-31 05:26:20 +00:00
John McCall
da4458e98f Regularize support for naming conversion functions in using decls.
llvm-svn: 99979
2010-03-31 01:36:47 +00:00
John McCall
d9c7c6568e Introduce a new kind of derived-to-base cast which bypasses the need for
null checks, and make sure we elide null checks when accessing base class
members.

llvm-svn: 99963
2010-03-30 23:58:03 +00:00
Daniel Dunbar
76dc2e677c Formatting tweaks.
llvm-svn: 99947
2010-03-30 22:26:15 +00:00