llvm-svn: 54371

llvm-svn: 54369

Added decl_iterator to DeclStmt to provide an abstract interface to iterate over the ScopedDecls of a DeclStmt.
Updated a few clients of DeclStmt::getNextDeclarator() to use decl_iterator instead.  Will update other clients after additional testing.

llvm-svn: 54368

Finish fixing <rdar://problem/5929344> clang ObjC rewriter: "extern int __CFConstantStringClassReference[];" should be extern "C"

llvm-svn: 54367

llvm-svn: 54366

llvm-svn: 54365

Refactored driver logic for CodeGen into LLVMCodeGenWriter.  This ASTConsumer layers on top of LLVMCodeGen (another existing ASTConsumer) to emit bitcode files to disk.  This layering takes this logic out of clang.cpp and puts it directly into the ASTConsumer interface.  The benefit is that now --emit-llvm works with both serialized ASTs and regular source files.

llvm-svn: 54364

Fix <rdar://problem/6108119> clang ObjC rewriter: if no newline at end of input file, rewriter inserts #define on same line as closing brace

llvm-svn: 54363

llvm-svn: 54362

llvm-svn: 54361

llvm-svn: 54360

that couldn't be updated.

llvm-svn: 54359

llvm-svn: 54358

llvm-svn: 54357

llvm-svn: 54356

llvm-svn: 54355

llvm-svn: 54354

  ActOnDeclarator.

llvm-svn: 54353

llvm-svn: 54352

llvm-svn: 54351

llvm-svn: 54350

llvm-svn: 54349

llvm-svn: 54348

llvm-svn: 54347

Fix PR2568: Fix bug that cause redudant kill marker after its live interval has been extended due to coalescing.

llvm-svn: 54346

 - Use -verify and added expected warnings for EXTWARN change.

llvm-svn: 54342

llvm-svn: 54340

 - ActOnDeclarator now takes an additional parameter which is the
   AsmLabel if used. Its unfortunate that this bubbles up this high,
   but we cannot just lump it in as an attribute without mistakenly
   *accepting* it as an attribute.
 - The actual asm-label itself is, however, encoded as an AsmLabelAttr
   on the FunctionDecl.
 - Slightly improved parser error recovery on malformed asm-labels.
 - CodeGen support still missing...

llvm-svn: 54339

 - <rdar://problem/6122967>

llvm-svn: 54338

llvm-svn: 54337

llvm-svn: 54336

 - Like EXTENSION but always generates a warning (even without
   -pedantic).
 - Updated ptr -> int, int -> ptr, and incompatible cast warnings to
   be EXTWARN.
 - Other EXTENSION level diagnostics should be audited for upgrade.
 - Updated several test cases to fix code which produced unanticipated
   warnings.

llvm-svn: 54335

Update these tests to work by disabling the new correct CFG generation.  This flag should ONLY be used to for tests like these.

llvm-svn: 54334

- Add a basic machine-level dead block eliminator.

These two have to go together, since many other parts of the code generator are unable to handle the unreachable blocks otherwise created.

llvm-svn: 54333

version uses a new algorithm for evaluating the binomial coefficients 
which is significantly more efficient for AddRecs of more than 2 terms 
(see the comments in the code for details on how the algorithm works).  
It also fixes some bugs: it removes the arbitrary length restriction for 
AddRecs, it fixes the silent generation of incorrect code for AddRecs 
which require a wide calculation width, and it fixes an issue where we 
were incorrectly truncating the iteration count too far when evaluating 
an AddRec expression narrower than the induction variable.

There are still a few related issues I know of: I think there's 
still an issue with the SCEVExpander expansion of AddRec in terms of
the width of the induction variable used.  The hack to avoid generating 
too-wide integers shouldn't be necessary; instead, the callers should be 
considering the cost of the expansion before expanding it (in addition 
to not expanding too-wide integers, we might not want to expand 
expressions that are really expensive, especially when optimizing for 
size; calculating an length-17 32-bit AddRec currently generates about 250 
instructions of straight-line code on X86).  Also, for long 32-bit 
AddRecs on X86, CodeGen really sucks at scheduling the code.  I'm planning on 
filing follow-up PRs for these issues.

llvm-svn: 54332

This allows it to work correctly on aggregate values.
This fixes PR2623.

llvm-svn: 54331

This allows it to work correctly on nested aggregate values.
This fixes PR2625.

llvm-svn: 54330

llvm-svn: 54329

"the attached patch fixes some typos, 80 cols violations, etc. in comments."

llvm-svn: 54328

 - clang was erroneously accepting address-of applied to lvalue
   expressions involving pointer arithmetic.
 - clang was erroneously rejecting address-of applied to deref
   expressions of pointer-typed variables.
 - Improved existing test case.
 - Fixes: <rdar://problem/6113867>, <rdar://problem/6080158>

llvm-svn: 54326