- Only handles cases with @try with no @catch blocks, and there are a
   number of problems with the implementation. Nevertheless, this is
   good enough to handled @synchronized correctly, and some other
   basic uses.

llvm-svn: 65378

 - Interface is more or less like multidelta.

 - Keep in mind it won't work very well; delta is O(N^2) frequently in
   practice. multidelta manages to work because it folds lines to keep
   N small, but this is just working on raw tokens. However, I have a
   fancy pants DAG based delta algorithm which will be the bees knees
   once I get it wired to clang.

llvm-svn: 65377

llvm-svn: 65376

llvm-svn: 65375

llvm-svn: 65374

that declaration to global scope so that it can be found from other
scopes. This allows us to diagnose redeclaration errors for external
declarations across scopes. We also warn when name lookup finds such
an out-of-scope declaration. This is part of <rdar://problem/6127293>;
we'll also need to do the same thing for variables.

llvm-svn: 65373

llvm-svn: 65372

Pass the CodeGenModule object to GenerateBlockFunction, instead of *this (which will call the copy constructor). 

Also, since we're creating a new CodeGenFunction object for each block function, we don't need to clear the BreakContinueStack.

llvm-svn: 65371

llvm-svn: 65370

llvm-svn: 65368

  a DBG_LABEL or not. We want to fall back to the original way of emitting debug
  info when we're in -O0/-fast mode.
- Add plumbing in to pass the "Fast" flag to places that need it.
- XFAIL DebugInfo/deaddebuglabel.ll. This is finding 11 labels instead of 8. I
  need to investigate still.

llvm-svn: 65367

analyzer for array subscript expressions involving bases that are vectors. This
solution is probably a hack: it gets the lvalue of the vector instead of an
rvalue like all other types. This should be reviewed (big FIXME in
GRExprEngine).

llvm-svn: 65366

llvm-svn: 65365

ashr instcombine to help expose this code. And apply the fix to
SelectionDAG's copy of this code too.

llvm-svn: 65364

handling non-constant strides. No functionality change.

llvm-svn: 65363

Fix two @synchronized bugs found by inspection: the expression to sychronize on should only be evaluated once, and it is evaluated outside the cleanup scope.

Also, lift SyncEnter and SyncExit up in nervous anticipation of x86-64
zero cost EH.

llvm-svn: 65362

This allows the PTH file to stay 100% in fidelity with the source code and
defines away some weird cosmetic bugs for operations such as '-E' where
maintaining knowledge of the original literal representation is useful.

llvm-svn: 65361

  - When we are declaring a function in local scope, we can merge with
    a visible declaration from an outer scope if that declaration
    refers to an entity with linkage. This behavior now works in C++
    and properly ignores entities without linkage.
  - Diagnose the use of "static" on a function declaration in local
    scope.
  - Diagnose the declaration of a static function after a non-static
    declaration of the same function.
  - Propagate the storage specifier to a function declaration from a
    prior declaration (PR3425)
  - Don't name-mangle "main"

llvm-svn: 65360

llvm-svn: 65359

This fixes objc.dg/dwarf-prototypes.m scan-assembler DW_AT_prototyped from llvmgcc42 test suite.

llvm-svn: 65357

llvm-svn: 65355

size to that of the *cleaned* spelling. This way 'getSpelling()' for literals in
the Preprocessor just works and doesn't read beyond the bounds of the cached
spelling buffer.

llvm-svn: 65354

While folding unconditional return move DbgRegionEndInst into the predecessor, instead of removing it. This fixes following tests from llvmgcc42 testsuite.

gcc.c-torture/execute/20000605-3.c
gcc.c-torture/execute/20020619-1.c
gcc.c-torture/execute/20030920-1.c
gcc.c-torture/execute/loop-ivopts-1.c

llvm-svn: 65353

If there is not any debug info available for any global variables and any subprograms then there is not any debug info to emit.

llvm-svn: 65352

llvm-svn: 65350

llvm-svn: 65349

llvm-svn: 65348

trip counts that use signed comparisons. It's not obviously the best
approach for preserving trip count information, and at any rate there
isn't anything in the tree right now that makes use of that, so for
now always using zero-extensions is preferable.

llvm-svn: 65347

llvm-svn: 65346

llvm-svn: 65343

Tidy up the path diagnostic generation logic in BugReporter and remove a case where an "Execution continues..." diagnostic could result in an empty message bubble.

llvm-svn: 65342

if it sees TLS addresses.

llvm-svn: 65341

assertion when the ivars and method list was reset into the existing
interface.  To fix this, mark decls as invalid when they are redefined,
and don't insert ivars/methods into invalid decls.

llvm-svn: 65340

llvm-svn: 65335

of a pointer to object; This patch does this odd behavior according to
gcc.

llvm-svn: 65334

- Generate error for protocol qualifiers on non-ObjC types.

llvm-svn: 65333

Remove support for "Class<P>". Will be making this an error.

llvm-svn: 65332

llvm-svn: 65331

This doesn't change the current functionality, but better codifies the
autorelease pool stack itself.

llvm-svn: 65328

llvm-svn: 65327