llvm-svn: 125488

access-control diagnostics which arise from the portion of the declarator
following the scope specifier, just in case access is granted by
friending the individual method.  This can also happen with in-line
member function declarations of class templates due to templated-scope
friend declarations.

We were really playing fast-and-loose before with this sort of thing,
and it turned out to work because *most* friend functions are in file
scope.  Making us delay regardless of context exposed several bugs with
how we were manipulating delay.  I ended up needing a concept of a
context that's independent of the declarations in which it appears,
and then I actually had to make some things save contexts correctly,
but delay should be much cleaner now.

I also encapsulated all the delayed-diagnostics machinery in a single
subobject of Sema;  this is a pattern we might want to consider rolling
out to other components of Sema.

llvm-svn: 125485

FP_CONTRACT pragmas.  Patch originally by ARM.

llvm-svn: 125475

llvm-svn: 125474

llvm-svn: 125473

llvm-svn: 125468

implementation of co/contra-variance objc++
block pointers. // rdar://8979379.

llvm-svn: 125467

Stmt::const_child_range, then make a bunch of places use them instead
of the individual iterator accessors.

llvm-svn: 125450

destruction in the destructor-aliases logic.  Fixes PR 9197.

llvm-svn: 125447

types which are contravariance in argument types and covariance
in return types. // rdar://8979379.

llvm-svn: 125445

llvm-svn: 125443

Temporarily set the first (canonical) declaration as the previous one, which is the one that
matters, and mark the real previous DeclID to be loaded & attached later on.

Fixes rdar://8956193.

llvm-svn: 125434

Weaken the ObjCSelfInitChecker to only warn when one calls an 'init' method within an 'init' method.  This is a temporary stop gap to avoid false positives while we investigate how to make it smarter.

llvm-svn: 125427

static analyzer: Also invalidate instance variables of a receiver in a message expression, just as we do with parameters.

Fixes <rdar://problem/8725041>.

llvm-svn: 125422

Don't emit a dead store for '++' operations unless it occurs with a return statement.  We've never seen any other cases that were real bugs.

Fixes <rdar://problem/6962292>.

llvm-svn: 125419

I also sorted the tools/driver dependencies since their order no
longer matters.

llvm-svn: 125417

llvm-svn: 125415

Reviewed by dgregor.

llvm-svn: 125407

llvm-svn: 125399

llvm-svn: 125396

llvm-svn: 125395

Rename the operation that loads a preprocessed entity from a given offset to indicate that we're loading from an offset, not an index, lest one be confused. No functionality change.

llvm-svn: 125394

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

This patch contains:

- making some of the existing comments more accurate in the presence
of virtual files/directories.

- renaming some private data members of FileManager to match their roles better.

- creating 'DirectorEntry's for the parent directories of virtual
files, such that we can tell whether two virtual files are from the
same directory.  This is useful for injecting virtual files whose
directories don't exist in the real file system.

- minor clean-ups and adding comments for class
FileManager::UniqueDirContainer and FileManager::UniqueFileContainer.

- adding statistics on virtual files to FileManager::PrintStats().

- adding unit tests to verify the existing and new behavior of FileManager.

llvm-svn: 125384

contents when it's safe. I just *love* C++ some days.

llvm-svn: 125378

llvm-svn: 125364

llvm-svn: 125362

llvm-svn: 125360

unnecessary calls to RoundUpToAlignment. No changes to functionality
intended.

llvm-svn: 125356

CharUnits to sizes in bits, and use it to tidy up the places where the
conversion was done explicitly.

llvm-svn: 125332

llvm-svn: 125330

causing the deserialization of a large number of declarations when
writing the visible-updates record for the translation unit in C. This
takes us from:

*** AST File Statistics:
  2 stat cache hits
  6 stat cache misses
  1/64463 source location entries read (0.001551%)
  15606/16956 types read (92.038216%)
  59266/89334 declarations read (66.342041%)
  38952/61393 identifiers read (63.446976%)
  0/7778 selectors read (0.000000%)
  24192/34644 statements read (69.830276%)
  388/8809 macros read (4.404586%)
  2095/5189 lexical declcontexts read (40.373867%)
  0/4587 visible declcontexts read (0.000000%)
  0/7716 method pool entries read (0.000000%)
  0 method pool misses

to

*** AST File Statistics:
  2 stat cache hits
  6 stat cache misses
  1/64463 source location entries read (0.001551%)
  26/16956 types read (0.153338%)
  18/89334 declarations read (0.020149%)
  145/61393 identifiers read (0.236183%)
  0/7778 selectors read (0.000000%)
  21/34644 statements read (0.060617%)
  0/8809 macros read (0.000000%)
  0/5189 lexical declcontexts read (0.000000%)
  0/4587 visible declcontexts read (0.000000%)
  0/7716 method pool entries read (0.000000%)
  0 method pool misses

when generating a chained PCH for a header that #includes Cocoa.h
(from a PCH file) and adds one simple function declaration. The
generated PCH file is now only 9580 bytes (down from > 2MB).

llvm-svn: 125326

we would deserialize all of the macro definitions we knew about while
serializing the macro definitions at the end of the AST/PCH file. Even
though we skipped most of them (since they were unchanged), it's still
a performance problem.

Now, we do the standard AST/PCH chaining trick: watch what identifiers
are deserialized as macro names, and consider only those identifiers
(along with macro definitions that have been deserialized/written in
the source) when serializing the preprocessor state.

llvm-svn: 125324

llvm-svn: 125321

llvm-svn: 125309

llvm-svn: 125299

llvm-svn: 125298

macro definitions by macro name first. That way, we'll get a stable
ordering in the AST/PCH file.

llvm-svn: 125297

For -Woverloaded-virtual take into account canonical methods. Fixes rdar://8979966 & http://llvm.org/PR9182.

llvm-svn: 125296

llvm-svn: 125293