llvm-svn: 83758

llvm-svn: 83757

llvm-svn: 83756

llvm-svn: 83755

llvm-svn: 83754

llvm-svn: 83753

ConstantInt::TheTrueVal/TheFalseVal members.

llvm-svn: 83752

llvm-svn: 83751

llvm-svn: 83750

llvm-svn: 83749

the IR, and to implement the FIXME'd optimization.

llvm-svn: 83748

inserted only once, just use vector.  Don't compute ExitBlocks unless we
need it, change std::sort to array_pod_sort.

llvm-svn: 83747

from GVN, this also speeds it up, inserts fewer PHI nodes (see the
testcase) and allows it to remove more loads (due to fewer PHI nodes
standing in the way).

llvm-svn: 83746

llvm-svn: 83745

PHI nodes inserted.

llvm-svn: 83744

llvm-svn: 83743

llvm-svn: 83742

not just at the end.  Add a big comment explaining when this could
be useful (which never happens for jump threading).

llvm-svn: 83741

what it does.

llvm-svn: 83740

Remove impdef of SRW. This fixes PR4779

llvm-svn: 83739

llvm-svn: 83738

llvm-svn: 83737

llvm-svn: 83736

llvm-svn: 83735

llvm-svn: 83734

llvm-svn: 83733

llvm-svn: 83728

llvm-svn: 83724

llvm-svn: 83722

llvm-svn: 83721

clang static analyser.  Decrease duplication in the text.

llvm-svn: 83720

llvm-svn: 83719

llvm-svn: 83717

llvm-svn: 83716

llvm-svn: 83715

llvm-svn: 83707

DemoteRegToStack.  This makes it more efficient (because it isn't
creating a ton of load/stores that are eventually removed by a later
mem2reg), and more slightly more effective (because those load/stores
don't get in the way of threading).

llvm-svn: 83706

works on unstructured CFGs.  This implements PR217, our oldest open PR.

llvm-svn: 83705

a Value* to a WeakVH was constructing a temporary WeakVH
(due to the implicit assignment operator).  This avoids
that cost.

llvm-svn: 83704

llvm-svn: 83703