running tail duplication when doing branch folding for if-conversion, and
we also want to be able to run tail duplication earlier to fix some
reg alloc problems.  Move the CanFallThrough function from BranchFolding
to MachineBasicBlock so that it can be shared by TailDuplication.

llvm-svn: 89904

llvm-svn: 89903

'BlockDataRegion' to distinguish between the code associated with a
block (which is represented by 'BlockTextRegion') and an instance of a
block, which includes both code and data.  'BlockDataRegion' has an
associated LocationContext, which can be used to eventually model the
lifetime of a block object once LocationContexts can represent scopes
(and iterations around a loop, etc.).

llvm-svn: 89900

llvm-svn: 89899

llvm-svn: 89897

llvm-svn: 89896

This fixes pr5611.

llvm-svn: 89895

llvm-svn: 89894

Rollback changes r89516: Added two SubtargetFeatures::AddFeatures methods, which accept a comma-separated string or already parsed command line parameters as input, and some code re-factoring to use these new methods.

llvm-svn: 89893

llvm-svn: 89892

the linkage of a declaration. Switch the lame (and completely wrong)
NamedDecl::hasLinkage() over to using the new NamedDecl::getLinkage(),
along with the "can this declaration be a template argument?" check
that started all of this.

Fixes -fsyntax-only for PR5597.

llvm-svn: 89891

llvm-svn: 89890

Add a new RetainReleaseChecker class (that subclasses CheckerVisitor) to extend the functionality of the retain/release checker using the new Checker interface.  Pieces of CFRefCount will gradually be migrated to this new class over time.

llvm-svn: 89889

llvm-svn: 89888

Call GRExprEngine::setTransferFunctions() after registering all Checkers.  This allows GRTransferFuncs::RegisterChecks() to always be called after all checkers have been registered.

llvm-svn: 89887

Consolidate logic in ActionInlineCall by having it call ActionGRExprEngine instead of replicating most of its logic (and missing pieces).

llvm-svn: 89886

initializer name is available.

llvm-svn: 89885

Make RegisterInternalChecks() part of GRExprEngine's private implementation by making it a static function within GRExprEngine.cpp.

llvm-svn: 89884

Register internal checks with GRExprEngine when it is constructed, not manually in AnalysisConsumer.cpp.

llvm-svn: 89883

only stop processing the checkers after all the nodes for a current
check have been processed.  This (I believe) handles the case where
PredSet (the input nodes) contains more than one node due to state
bifurcation.  Zhongxing: can you review this?

llvm-svn: 89882

ProcessImplicitDefs should watch out for invalidated iterator and extra implicit operands on copies.

llvm-svn: 89880

With the testcase for pr3120, the "threaded interpreter" runtime decreases
from 1788 to 1413 with this change.

llvm-svn: 89877

llvm-svn: 89876

llvm-svn: 89875

llvm-svn: 89874

llvm-svn: 89873

function templates (in C++98), friend function templates, and
out-of-line definitions of members of class templates.

Also handles merging of default template arguments from previous
declarations of function templates, for C++0x. However, we don't yet
make use of those default template arguments.

llvm-svn: 89872

llvm-svn: 89867

llvm-svn: 89866

it is definitely profitable to tail duplicate indirect branches for x86.
This is likely to be true to various degrees for all modern x86 processors.

llvm-svn: 89865

Fix a thinko where we weren't always performing unary conversions on the switch condition, fixing PR5612

llvm-svn: 89864

llvm-svn: 89863

llvm-svn: 89862

llvm-svn: 89861

llvm-svn: 89860

llvm-svn: 89859

llvm-svn: 89858

llvm-svn: 89856

llvm-svn: 89855

llvm-svn: 89854