moment, as there's a testcase that uses it and expects it
to be subject to optimizations; we won't be doing that.
Some adjustments based on feedback from Bill.

llvm-svn: 112754

check more strict, breaking some cases not checked in the
testsuite, but also exposes some foldings not done before,
as this example:

  movaps  (%rdi), %xmm0
  movaps  (%rax), %xmm1
  movaps  %xmm0, %xmm2
  movss %xmm1, %xmm2
  shufps  $36, %xmm2, %xmm0

now is generated as:

  movaps  (%rdi), %xmm0
  movaps  %xmm0, %xmm1
  movlps  (%rax), %xmm1
  shufps  $36, %xmm1, %xmm0

llvm-svn: 112753

llvm-svn: 112752

This caused a miscompilation in WebKit where %RAX had conflicting defs when
RemoveCopyByCommutingDef was commuting a %EAX use.

llvm-svn: 112751

llvm-svn: 112750

llvm-svn: 112749

llvm-svn: 112748

llvm-svn: 112746

infinite loops or exits will eventually exit. This fixes PR5373.

llvm-svn: 112745

llvm-svn: 112744

physical register in a register class. Make sure to assert if the register
class is empty.

llvm-svn: 112743

llvm-svn: 112742

r112728 did this for fast regalloc.

llvm-svn: 112741

llvm-svn: 112740

it did not include the initializer expression.

llvm-svn: 112739

llvm-svn: 112738

llvm-svn: 112737

support for which came in with the last commit.

llvm-svn: 112735

llvm-svn: 112734

llvm-svn: 112733

llvm-svn: 112732

Stream::Printf doesn't add a newline, so it needs to be added to all the error messages in CommandObjectExpression::EvaluateExpression.

llvm-svn: 112731

three different kinds of AST nodes to represent using declarations:
UsingDecl, UnresolvedUsingValueDecl, and
UnresolvedUsingTypenameDecl. These three are collapsed into a single
cursor kind for using declarations, since libclang clients don't need
the distinction.

Several related changes here:
  - Cursor visitation of the three AST nodes for using declarations
  - Proper source-range computation for these AST nodes
  - Using declarations have no USRs, since they don't actually declare
    any entities.

llvm-svn: 112730

a c++ class object 'ivar'. Fixes radar 8366604.

llvm-svn: 112729

llvm-svn: 112728

llvm-svn: 112727

llvm-svn: 112726

llvm-svn: 112725

llvm-svn: 112724

llvm-svn: 112723

if we schedule another LVI-using pass afterwards.

llvm-svn: 112722

llvm-svn: 112721

in a few related ways:

  - Don't recurse into instantiations of templates.
  - Recurse into explicit specializations.
  - Visit the template arguments of an explicit specialization or
    explicit instantiation.
  - Include template specialization arguments in the USRs for class
    template specializations.

llvm-svn: 112720

self host errors on clang-x86-64.

llvm-svn: 112719

llvm-svn: 112718

it is given.

llvm-svn: 112717

llvm-svn: 112716

llvm-svn: 112715

on an producing weird link errors.  Patch by Yuri Gribov!

llvm-svn: 112714

llvm-svn: 112713