Make the PPC backend not dependent on BRTWOWAY_CC and make the branch
selector smarter about the code it generates, fixing a case in the
readme.

llvm-svn: 26814

llvm-svn: 26813

llvm-svn: 26811

llvm-svn: 26810

more target independant, generate better code, and be less conservative.

llvm-svn: 26809

llvm-svn: 26808

llvm-svn: 26807

llvm-svn: 26806

llvm-svn: 26805

llvm-svn: 26804

stride. For a set of uses of the IV of a stride which is a multiple
of another stride, do not insert a new IV expression. Rather, reuse the
previous IV and rewrite the uses as uses of IV expression multiplied by
the factor.

e.g.
x = 0 ...; x ++
y = 0 ...; y += 4
then use of y can be rewritten as use of 4*x for x86.

llvm-svn: 26803

scale component of the target addressing mode.

llvm-svn: 26802

5 instructions away.

llvm-svn: 26801

llvm-svn: 26800

illegal vector types yet!

llvm-svn: 26799

llvm-svn: 26798

llvm-svn: 26797

llvm-svn: 26795

llvm-svn: 26793

llvm-svn: 26789

llvm-svn: 26788

llvm-svn: 26787

is fallout from the type/value split in the symtab long long ago :)

llvm-svn: 26785

llvm-svn: 26782

llvm-svn: 26781

llvm-svn: 26779

llvm-svn: 26777

llvm-svn: 26776

and the offset lands at a field boundary in the old type, construct a new type,
copying the fields masked by the offset from the old type, and unify with that.

llvm-svn: 26775

llvm-svn: 26774

llvm-svn: 26764

llvm-svn: 26763

llvm-svn: 26762

2. Allow for user defined debug descriptors.
3. Allow for user augmented fields on debug descriptors.

llvm-svn: 26760

llvm-svn: 26758

A*A*B + A*A*C   -->   A*(A*B+A*C)   -->   A*(A*(B+C))

This implements Reassociate/mul-factor3.ll

llvm-svn: 26757

llvm-svn: 26755

llvm-svn: 26754

(x<<1)+(y<<1) -> (X+Y)<<1.  This implements
Transforms/Reassociate/shift-factor.ll

llvm-svn: 26753

llvm-svn: 26748