This pass:

1. Splits TargetMachine into TargetMachine (generic targets, can be implemented
any way, like the CBE) and LLVMTargetMachine (subclass of TM that is used by
things using libcodegen and other support).
2. Instead of having each target fully populate the passmgr for file or JIT
   output, move all this to common code, and give targets hooks they can
   implement.
3. Commonalize the target population stuff between file emission and JIT
   emission.
4. All (native code) codegen stuff now happens in a FunctionPassManager, which
   paves the way for "fast -O0" stuff in the CFE later, and now LLC could
   lazily stream .bc files from disk to use less memory.
5. There are now many fewer #includes and the targets don't depend on the
   scalar xforms or libanalysis anymore (but codegen does).
6. Changing common code generator pass ordering stuff no longer requires
   touching all targets.
7. The JIT now has the option of "-fast" codegen or normal optimized codegen,
   which is now orthogonal to the fact that JIT'ing is being done.

llvm-svn: 30081

there are clearly some encoding bugs lurking in there somewhere.

llvm-svn: 29949

llvm-svn: 29351

llvm-svn: 29348

  method.
- Added synchronizeICache() to TargetJITInfo. It is called after each block
  of code is emitted to flush the icache. This ensures correct execution
  on targets that have separate dcache and icache.
- Added PPC / Mac OS X specific code to do icache flushing.

llvm-svn: 29276

llvm-svn: 26742

redundant after the change.

llvm-svn: 23759

and PPC32JITInfo classes should be merged.

llvm-svn: 23744

llvm-svn: 23743

llvm-svn: 22553

llvm-svn: 21425

llvm-svn: 18160

llvm-svn: 18038

llvm-svn: 15636

Support single-fp incoming args.
Support single-fp outgoing args ('call' operands).
Support double-fp return values.

llvm-svn: 14880

llvm-svn: 14283

PowerPCTargetMachine::addPassesToJITCompile() method, in favor of the
TargetJITInfo interface.

llvm-svn: 10971

implementation from the TargetMachine directly.

llvm-svn: 10636

llvm-svn: 10629

llvm-svn: 10542