use MachineBasicBlocks.  To do this, we traverse the Machine CFG instead of
the LLVM CFG, which is also *MUCH* more efficient by having fewer levels of
indirections and mappings.

llvm-svn: 13301

documentation that this module needs to be made independent of the
register file description of the current target.

llvm-svn: 13125

am not so sure about the file printer emitter, but the debug emitter change
should be harmless.)

llvm-svn: 13117

llvm-svn: 12872

llvm-svn: 12869

llvm-svn: 12866

llvm-svn: 12791

llvm-svn: 12572

llvm-svn: 12571

llvm-svn: 12561

rid of the funny cast.

llvm-svn: 12537

unhandled + handled. So unhandled is now including all fixed intervals
and fixed intervals never changes when processing a function.

llvm-svn: 12462

llvm-svn: 12425

instruction to make the API more flexible.

llvm-svn: 12386

llvm-svn: 12260

llvm-svn: 12189

llvm-svn: 12188

it is always completely initialized and copied.
Also, fix up many comments and asserts.

llvm-svn: 12100

Add a spiller option to llc. A simple spiller will come soon. When we get CFG in the machine code represenation a global spiller will also be possible. Also document the linear scan register allocator but mark it as experimental for now.

llvm-svn: 12062

llvm-svn: 12058

(16) into certain areas of the SPARC V9 back-end. I'm fairly sure the US IIIi's
dcache has 32-byte lines, so I'm not sure where the 16 came from. However, in
the interest of not breaking things any more than they already are, I'm going
to leave the constant alone.

llvm-svn: 12043

llvm-svn: 12031

Removing old graph files with new graph files that I wrote. Updated ModuloScheduling pass, but still in progress.

llvm-svn: 12030

llvm-svn: 12010

llvm-svn: 12009

llvm-svn: 12007

llvm-svn: 12003

llvm-svn: 12002

llvm-svn: 12001

llvm-svn: 11986

llvm-svn: 11977

llvm-svn: 11898

that they are as far away from the loads as possible.

llvm-svn: 11895

MRegisterInfo::isPhysicalRegister().

llvm-svn: 11894

llvm-svn: 11892

MRegisterInfo::is{Physical,Virtual}Register. Apply appropriate fixes
to relevant files.

llvm-svn: 11882

llvm-svn: 11868

MRegisterInfo::is{Physical,Virtual}Register.

llvm-svn: 11849

llvm-svn: 11844

llvm-svn: 11841