llvm-svn: 19617

llvm-svn: 19615

* Remove custom promotion for bool and byte select ops.  Legalize now
  promotes them for us.
* Allow folding ConstantPoolIndexes into EXTLOAD's, useful for float immediates.
* Declare which operations are not supported better.
* Add some hacky code for TRUNCSTORE to pretend that we have truncstore
  for i16 types.  This is useful for testing promotion code because I can
  just remove 16-bit registers all together and verify that programs work.

llvm-svn: 19614

track of how to deal with it, and provide the target with a hook that they
can use to legalize arbitrary operations in arbitrary ways.

Implement custom lowering for a couple of ops, implement promotion for select
operations (which x86 needs).

llvm-svn: 19613

llvm-svn: 19612

llvm-svn: 19611

llvm-svn: 19610

llvm-svn: 19606

llvm-svn: 19605

llvm-svn: 19604

llvm-svn: 19597

llvm-svn: 19596

llvm-svn: 19595

llvm-svn: 19592

llvm-svn: 19587

llvm-svn: 19586

llvm-svn: 19584

llvm-svn: 19583

llvm-svn: 19582

llvm-svn: 19581

llvm-svn: 19580

llvm-svn: 19579

llvm-svn: 19578

llvm-svn: 19577

basically everything.

llvm-svn: 19576

llvm-svn: 19575

ZERO_EXTEND_INREG for targets that don't support them.

llvm-svn: 19573

llvm-svn: 19572

llvm-svn: 19571

Add support for new SIGN_EXTEND_INREG, ZERO_EXTEND_INREG, and FP_ROUND_INREG operators.
Realize that if we do any promotions, we need to iterate SelectionDAG
construction.

llvm-svn: 19569

llvm-svn: 19568

llvm-svn: 19567

llvm-svn: 19566

llvm-svn: 19565

llvm-svn: 19563

stores/loads.

llvm-svn: 19562

llvm-svn: 19561

llvm-svn: 19559

llvm-svn: 19557

llvm-svn: 19555