llvm-svn: 5093

llvm-svn: 5092

llvm-svn: 5090

  * Only load incoming arguments into virtual registers once at the
    beginning of the function
  * Assign different virtual registers to each reference to constants/globals

llvm-svn: 5088

llvm-svn: 5087

llvm-svn: 5086

llvm-svn: 5084

llvm-svn: 5083

* Implement register alias set support

llvm-svn: 5082

llvm-svn: 5081

llvm-svn: 5079

llvm-svn: 5078

llvm-svn: 5077

llvm-svn: 5076

llvm-svn: 5075

llvm-svn: 5074

llvm-svn: 5073

llvm-svn: 5072

llvm-svn: 5071

Remvoe some dead code

llvm-svn: 5070

Fix some bugs in use of MBB vs. BB and iterators that are invalidated before
we use them.

Reference targetClass by enum name, not by number.

llvm-svn: 5069

llvm-svn: 5067

register allocation

llvm-svn: 5066

llvm-svn: 5065

the dependence on PhysRegClassMap

llvm-svn: 5064

llvm-svn: 5061

llvm-svn: 5060

llvm-svn: 5059

llvm-svn: 5058

llvm-svn: 5057

llvm-svn: 5055

spills and reloads emitted

llvm-svn: 5054

llvm-svn: 5053

llvm-svn: 5052

  function from normal regalloc code
* Make the regalloc for a block a function instead of part of runOnMachineBB, which
  makes it easier to see what's going on in runOnMBB.

llvm-svn: 5051

llvm-svn: 5050

* Make allocateStackSpaceFor only allocate the right amount of space

llvm-svn: 5048

* Change regclass iterators to use an extra level of pointers

llvm-svn: 5047

target register description classes.

llvm-svn: 5045

llvm-svn: 5044