Move MaskedValueIsZero from the DAGCombiner to the TargetLowering interface,making isMaskedValueZeroForTargetNode simpler, and useable from other partsof the compiler.

llvm-svn: 25803

allowing redundant and's to be eliminated by the dag combiner.

llvm-svn: 25800

llvm-svn: 25798

This fixes llvm-test/SingleSource/UnitTests/2006-01-29-SimpleIndirectCall.c
and PR704

llvm-svn: 25793

llvm-svn: 25789

llvm-svn: 25788

llvm-svn: 25787

llvm-svn: 25786

llvm-svn: 25784

llvm-svn: 25783

llvm-svn: 25778

few stores under certain conditions.

llvm-svn: 25777

llvm-svn: 25776

instead of lying and saying we have it.

llvm-svn: 25775

llvm-svn: 25773

'fpimm' in .td files is now TargetConstantFP.

llvm-svn: 25771

why all this code isn't autogenerated. :(

llvm-svn: 25770

llvm-svn: 25761

llvm-svn: 25760

llvm-svn: 25755

llvm-svn: 25754

llvm-svn: 25751

llvm-svn: 25750

llvm-svn: 25749

llvm-svn: 25748

llvm-svn: 25747

llvm-svn: 25745

provide the expansion for i64 calls itself

llvm-svn: 25735

llvm-svn: 25734

    // FIXME: revisit this when we have some kind of mechanism by which targets
    // can decided legality of vector constants, of which there may be very
    // many.

llvm-svn: 25733

who don't want the default behavior (Alpha).

llvm-svn: 25726

llvm-svn: 25724

llvm-svn: 25719

llvm-svn: 25718

llvm-svn: 25717

llvm-svn: 25716

llvm-svn: 25715

llvm-svn: 25714

llvm-svn: 25712

llvm-svn: 25711