initializers.

  - We now initialize unions properly when a member other than the
    first is named by a designated initializer.
  - We now provide proper semantic analysis and code generation for
    GNU array-range designators *except* that side effects will occur
    more than once. We warn about this.

llvm-svn: 63253

of class's meta-data (related to objc2 nonfragile abi).

llvm-svn: 63251

llvm-svn: 63250

llvm-svn: 63249

 - Merged into single ComplexEvaluator, these share too much logic to
   be worth splitting for float/int (IMHO). Will split on request.

llvm-svn: 63248

llvm-svn: 63246

The approach I've taken in this patch is relatively straightforward,
although the code itself is non-trivial. Essentially, as we process
an initializer list we build up a fully-explicit representation of the
initializer list, where each of the subobject initializations occurs
in order. Designators serve to "fill in" subobject initializations in
a non-linear way. The fully-explicit representation makes initializer
lists (both with and without designators) easy to grok for codegen and
later semantic analyses. We keep the syntactic form of the initializer
list linked into the AST for those clients interested in exactly what
the user wrote.

Known limitations:
  - Designating a member of a union that isn't the first member may
    result in bogus initialization (we warn about this)
  - GNU array-range designators are not supported (we warn about this)

llvm-svn: 63242

retain/release checker: Always generate an "autorelease" summary for an "autorelease" message, and have the summary processing logic treat it as a no-op in GC mode.  This change is motivated to encode more of the semantics in the summaries themselves for eventual better diagnostics.

llvm-svn: 63241

llvm-svn: 63238

llvm-svn: 63232

Enhance PTHManager::Create() to take an optional Diagnostic* argument that can be used to report issues such as a missing PTH file.

llvm-svn: 63231

Fix TextDiagnosticPrinter::HandleDiagnostic to handle invalid FullSourceLocs that do not have a SourceManager.

llvm-svn: 63230

llvm-svn: 63229

Since it doesn't return a bool, is shouldn't be prefixed with 'is'.

llvm-svn: 63226

This removes ~10% of the calls to Sema::isTypeName(), which amount to a little less than a 1% reduction in usertime (for Cocoa.h).

llvm-svn: 63219

llvm-svn: 63218

Fix a stupid mistake in UnwrapSimilarPointers that made any two member pointers compatible as long as the pointee was the same.
Make a few style corrections as suggested by Chris.

llvm-svn: 63215

rules are slightly different than in C, and now we handle both
dialects properly.

llvm-svn: 63211

Even though Sema::LookupDecl() is deprecated, it's still used all over the place. Simplifying the interface will make it easier to understand/optimize/convert.

llvm-svn: 63210

Even though Sema::LookupDecl() is deprecated, it's still used all over the place. Simplifying the interface will make it easier to understand/optimize/convert.

llvm-svn: 63208

llvm-svn: 63191

retain/release checker: Improve diagnostics to indicate that CF objects are not automatically garbage collected.

llvm-svn: 63187

retain/release checker: Indicate whether a tracked object is a Core Foundation or Objective-C object.

llvm-svn: 63186

llvm-svn: 63184

retain/release checker: Embed an "object type" into the RetEffect/RetVal objects to help distinguish between Objective-C and Core Foundation objects (for better diagnostics).

llvm-svn: 63183

llvm-svn: 63181

llvm-svn: 63180

llvm-svn: 63179

llvm-svn: 63178

llvm-svn: 63177

llvm-svn: 63176

Patch by Alexei Svitkine: Refactor Sema::ParseAST API to allow clients to pass as an argument a TranslationUnit object whose contents live beyond the call to ParseAST.

llvm-svn: 63175

accessibility of the ivar (related to objc2's
non-fragile abi).

llvm-svn: 63166

Changed section names for meta-data (to match current gcc).

llvm-svn: 63163

llvm-svn: 63162

Performance impact (clang -fsyntax-only INPUTS/Cocoa_h.m):
  non-PTH: 0.4% improvement
  PTH: 0.8% improvement

llvm-svn: 63159

llvm-svn: 63158

llvm-svn: 63157

snaroff% time ../../Release-Asserts/bin/clang INPUTS/Cocoa_h.m
0.179u 0.051s 0:00.23 95.6%	0+0k 0+0io 0pf+0w
snaroff% time ../../Release-Asserts/bin/clang INPUTS/Cocoa_h.m -disable-free
0.169u 0.052s 0:00.22 95.4%	0+0k 0+0io 0pf+0w

llvm-svn: 63153

llvm-svn: 63150