An instruction like this:

  %reg1097:1<def> = VMOVSR %R3<kill>, 14, %reg0

Must be replaced with this when substituting physical registers:

  %S0<def> = VMOVSR %R3<kill>, 14, %reg0, %D0<imp-def>

llvm-svn: 92812

llvm-svn: 92810

llvm-svn: 92807

bottom-up scheduler. We prefer the lower order number.

llvm-svn: 92806

llvm-svn: 92800

result in illegal types for the SHL operator.

llvm-svn: 92797

llvm-svn: 92796

llvm-svn: 92795

uses several kinds of opcode values which are not declared within
that enum. This fixes PR5946.

llvm-svn: 92794

llvm-svn: 92793

llvm-svn: 92792

llvm-svn: 92790

The only difference is that EvaluateInDifferentType checks to ensure
they are profitable before doing them :)

llvm-svn: 92788

instructions.  Thumb does not have the restriction that t2 = t+1.

llvm-svn: 92785

llvm-svn: 92783

It is enough to give the super registers CR0, CR1, ..., and specifying the
sub-registers as well causes confusion in the liveness computations.

llvm-svn: 92778

llvm-svn: 92775

llvm-svn: 92774

llvm-svn: 92773

llvm-svn: 92772

llvm-svn: 92771

llvm-svn: 92770

A phi operand that is implicitly defined in a predecessor becomes an undefined
register after phi elimination. This causes a lot of false positives when the
verifier is checking if live-in registers are live-out from all predecessors.

Removing the verifier checks seems like a better solution than insisting on
IMPLICIT_DEF instructions in predecessor blocks.

llvm-svn: 92769

llvm-svn: 92768

llvm-svn: 92766

llvm-svn: 92761

llvm-svn: 92760

llvm-svn: 92759

llvm-svn: 92745

llvm-svn: 92739

llvm-svn: 92736

llvm-svn: 92735

non-zero trip count. Use SmallVector's pop_back_val().

llvm-svn: 92734

llvm-svn: 92733

RecursivelyDeleteDeadPHINode, and DeleteDeadPHIs return a flag
indicating whether they made any changes.

llvm-svn: 92732

llvm-svn: 92727

Avoid going through the LLVMContext for type equality where it's safe to dereference the type pointer.

llvm-svn: 92726

llvm-svn: 92712

it does make sense to keep them together, at least for now.

llvm-svn: 92711

llvm-svn: 92710