llvm-svn: 42439

traversed by the visitor.

llvm-svn: 42438

tracked by an ExprDeclBitVector analysis.

llvm-svn: 42437

protocols.

llvm-svn: 42436

add more such code for DIEDwarfLabel::SizeOf and DIEObjectLabel::SizeOf.

llvm-svn: 42435

targets with 64-bit addresses.

llvm-svn: 42434

The only generated code difference is that now we call memcpy when
the size of the array is unknown. This matches GCC behavior and is
better since the run time value can be arbitrarily large.

llvm-svn: 42433

llvm-svn: 42429

llvm-svn: 42428

llvm-svn: 42427

llvm-svn: 42426

llvm-svn: 42423

Fixes a SWB crash.

llvm-svn: 42422

taintness across expressions.

Made "smart-culling" of taint propagation (for error reporting)
correctly handle conditional expressions and a few other edge cases.

llvm-svn: 42421

Convert DFSPass into a templated friend function, in preparation for making it common to DomTree and PostDomTree.

llvm-svn: 42420

other than PPC64. Instead of fixing it, just remove it and fix all the
places that use it to use TargetData::getPointerSize() instead, as there
aren't very many. Most of the references were in DwarfWriter.cpp.

llvm-svn: 42419

It includes:

 - location and of each safe point in machine code (identified by a
   label)
 - location of each root within the stack frame (identified by an
   offset), including the metadata tag provided to llvm.gcroot in
   the user program
 - size of the stack frame (for collectors which want to cheat on
   stack crawling :)
 - and eventually will include liveness

It is to be populated by back-ends during code-generation.

CollectorModuleMetadata aggregates this information across the
entire module.

llvm-svn: 42418

llvm-svn: 42417

llvm-svn: 42416

registry for dynamically-loaded garbage collection compiler plugins.

llvm-svn: 42415

capabilities. This is a major rewrite and is easier to read en toto
rather than patchwise.

llvm-svn: 42414

llvm-svn: 42413

Patch for method implementation. It populates ObjcImplementationDecl object with method implementation declarations .
It checks and warns on those methods declared in class interface and not implemented.

llvm-svn: 42412

Fix bug in SelectorInfo::getName() - method buffer needs to be passed by reference.

llvm-svn: 42411

llvm-svn: 42410

values associated with ScopedDecls and CFGBlock-level Exprs.  This is the common
boilerplate needed by UninitializedValues and LiveVariables.

Refactored UninitializedValues to use ExprDeclBitVector.

Shortened the string diagnostic for UninitializedValues.

llvm-svn: 42408

llvm-svn: 42407

llvm-svn: 42406

llvm-svn: 42405

llvm-svn: 42398

llvm-svn: 42397

llvm-svn: 42396

Add SelectorInfo (similar in spirit to IdentifierInfo). The key difference is SelectorInfo is not string-oriented, it is a unique aggregate of IdentifierInfo's (using a folding set).  SelectorInfo also has a richer API that simplifies the parser/action interface. 3 noteworthy benefits:

#1: It is cleaner. I never "liked" storing keyword selectors (i.e. foo:bar:baz) in the IdentifierTable.

#2: It is more space efficient. Since Cocoa keyword selectors can be quite long, this technique is space saving. For Cocoa.h, pulling the keyword selectors out saves ~180k. The cost of the SelectorInfo data is ~100k. Saves ~80k, or 43%.

#3: It results in many API simplifications. Here are some highlights:

- Removed 3 actions (ActOnKeywordMessage, ActOnUnaryMessage, & one flavor of ObjcBuildMethodDeclaration that was specific to unary messages).
- Removed 3 funky structs from DeclSpec.h (ObjcKeywordMessage, ObjcKeywordDecl, and ObjcKeywordInfo).
- Removed 2 ivars and 2 constructors from ObjCMessageExpr (fyi, this space savings has not been measured).

I am happy with the way it turned out (though it took a bit more hacking than I expected). Given the central role of selectors in ObjC, making sure this is "right" will pay dividends later.

Thanks to Chris for talking this through with me and suggesting this approach. 

llvm-svn: 42395

llvm-svn: 42394

llvm-svn: 42393

llvm-svn: 42392

llvm-svn: 42391

llvm-svn: 42389

llvm-svn: 42388

llvm-svn: 42387