llvm-svn: 26698

llvm-svn: 26697

llvm-svn: 26696

llvm-svn: 26695

stuff last night.

llvm-svn: 26694

llvm-svn: 26693

llvm-svn: 26692

in.

llvm-svn: 26691

llvm-svn: 26690

llvm-svn: 26689

llvm-svn: 26688

llvm-svn: 26687

llvm-svn: 26686

llvm-svn: 26685

llvm-svn: 26684

llvm-svn: 26683

llvm-svn: 26682

llvm-svn: 26681

keep track of a sense of "mobility", i.e. how many other nodes scheduling one
node will free up.  For something like this:

float testadd(float *X, float *Y, float *Z, float *W, float *V) {
  return (*X+*Y)*(*Z+*W)+*V;
}

For example, this makes us schedule *X then *Y, not *X then *Z.  The former
allows us to issue the add, the later only lets us issue other loads.

This turns the above code from this:

_testadd:
        lfs f0, 0(r3)
        lfs f1, 0(r6)
        lfs f2, 0(r4)
        lfs f3, 0(r5)
        fadds f0, f0, f2
        fadds f1, f3, f1
        lfs f2, 0(r7)
        fmadds f1, f0, f1, f2
        blr

into this:

_testadd:
        lfs f0, 0(r6)
        lfs f1, 0(r5)
        fadds f0, f1, f0
        lfs f1, 0(r4)
        lfs f2, 0(r3)
        fadds f1, f2, f1
        lfs f2, 0(r7)
        fmadds f1, f1, f0, f2
        blr

llvm-svn: 26680

llvm-svn: 26679

priority impls that want to be notified when a node is scheduled

llvm-svn: 26678

llvm-svn: 26677

llvm-svn: 26676

llvm-svn: 26674

llvm-svn: 26673

llvm-svn: 26672

llvm-svn: 26671

llvm-svn: 26670

llvm-svn: 26669

llvm-svn: 26668

llvm-svn: 26667

autogenerate an intrinsic verifier

llvm-svn: 26666

llvm-svn: 26665

llvm-svn: 26664

llvm-svn: 26663

llvm-svn: 26662

llvm-svn: 26661

llvm-svn: 26660

llvm-svn: 26659

llvm-svn: 26658