use or def-and-use operands can be substituted after one def-only
operand has been substituted.

llvm-svn: 7674

The original code does not work because the value from WorkList.end() is
invalidated once WorkList.erase() is called.  To ensure proper functionality,
we must ensure that WorkList.erase() is always called before WorkList.end().

llvm-svn: 7673

llvm-svn: 7672

Added code for pool allocating only the pool-allocatable data structures in the presence of collapsed nodes + a couple of bug fixes

llvm-svn: 7662

llvm-svn: 7661

llvm-svn: 7658

  just PreSelection
* Wrapped code at 80 columns
* Added the DecomposeMultiDimRefs Pass to the JIT compilation path

llvm-svn: 7657

because saving i1 and i2 to their ``designated'' stack slots corrupts unknown
memory in other functions, standard libraries, and worse.

In addition, this has the benefit of improving JIT performance because we
eliminate writing out 4 instructions in CompilationCallback() and 2 loads and 2
stores.

llvm-svn: 7653

llvm-svn: 7646

2. Handle fp-to-uint conversions directly here instead of relying on
   a pre-transformation to replace them with the 2-step conversion.
3. Use size rather than explicitly checking types when deciding what
   opcodes to use, wherever possible.  This is less error prone (the
   bug fix above was not the first time!).
4. Float-to-pointer casts shd now work though this hasn't been tested.

llvm-svn: 7645

this is not an optional transformation on SPARC and is now handled
directly by instruction selection.

llvm-svn: 7644

llvm-svn: 7642

llvm-svn: 7641

* Doxygen-ified comments
* Added capability to make far calls (i.e., beyond 30 bits in CALL instr)
  which implies that we need to delete function references that were added by
  the call to addFunctionReference() because the actual call instruction is 10
  instructions away (thanks to 64-bit address construction)
* Cleaned up code that generates far jumps by using an array+loop

SparcV9CodeEmitter.h:
* Explained more of the side-effects of emitFarCall()

llvm-svn: 7639

llvm-svn: 7636

llvm-svn: 7635

class

llvm-svn: 7634

llvm-svn: 7621

llvm-svn: 7620

llvm-svn: 7619

llvm-svn: 7618

llvm-svn: 7617

llvm-svn: 7614

llvm-svn: 7612

  * Expand most tabs into spaces
  * Move #define DEBUG_TYPE to top of file to avoid warning

llvm-svn: 7611

llvm-svn: 7610

Added function mergeInGlobalsGraph which merges in the entire globals graph with the graph of a function

llvm-svn: 7606

Major bug fixes including a memory leak and tracking some exceptional conditions. Also added support for including global and indirect call information in the DS graphs used by the pool allocation

llvm-svn: 7605

llvm-svn: 7604

llvm-svn: 7603

so get rid of the def/use parameters that were getting passed in.

**** This now changes the semantics of these methods to preserve the flags,
     not clobber them!

llvm-svn: 7602

llvm-svn: 7600

Fix bug: SimplifyCFG/2003-08-05-MishandleInvoke.ll

llvm-svn: 7599

* Simplified code by using an inline function instead of copy-pasted code

llvm-svn: 7597

llvm-svn: 7595

* Use the name of the predict field instead of just the const 1 in the
  Instruction.

llvm-svn: 7592

llvm-svn: 7591

llvm-svn: 7588

Physical registers should not float around.

llvm-svn: 7587

llvm-svn: 7586