llvm-svn: 43910

instead of just using "unsigned".  This gives us more flexibility in changing
the definition of the handle later, and is more self-documenting.

Added tracking of block stack in the Deserializer.  Now clients can query
if they are still within a block using the methods GetCurrentBlockLocation()
and FinishedBlock().

llvm-svn: 43903

llvm-svn: 43897

llvm-svn: 43893

llvm-svn: 43892

If both parts of smul_lohi, etc. are used, don't simplify. If only one part is used, try simplify it.

llvm-svn: 43888

Add the majority of machine-level critical edge breaking pass.  Most of this was written by Fernando, cleanup and updating to TOT by me.

This still needs a bit of work, particularly to handle jump tables properly.

llvm-svn: 43885

llvm-svn: 43869

llvm-svn: 43866

Would somebody not on Darwin please make sure this
doesn't break anything.  Exception handling failures
would be the most likely symptom.

llvm-svn: 43844

llvm-svn: 43829

llvm-svn: 43828

llvm-svn: 43819

llvm-svn: 43805

Much improvement in exception handling.

llvm-svn: 43794

llvm-svn: 43784

or can be registered with the deserializer to backpatch other pointers.

llvm-svn: 43783

minor bugs.

llvm-svn: 43782

llvm-svn: 43781

llvm-svn: 43780

llvm-svn: 43779

all compute the same value.

llvm-svn: 43777

When the allocator rewrite a spill register with new virtual register, it replaces other operands of the same register. Watch out for situations where
only some of the operands are sub-register uses.

llvm-svn: 43776

type of SV has changed from what it originally was.
However we need the store width of the original.

llvm-svn: 43775

llvm-svn: 43772

Added some #ifdef-controlled messages for debugging backpatching.

llvm-svn: 43771

llvm-svn: 43764

llvm-svn: 43763

other uses. There was a overly restricted check that prevented some obvious
cases.

llvm-svn: 43762

llvm-svn: 43756

llvm-svn: 43755

llvm-svn: 43754

llvm-svn: 43751

llvm-svn: 43749

llvm-svn: 43745

llvm-svn: 43744

llvm-svn: 43743

Thanks for the suggestions Bill :-)

llvm-svn: 43742

Added detection of end-of-stream in deserializer.

llvm-svn: 43736

parameters.  Rename ValueRefList to ParamList
in AsmParser, since its only use is for parameters.

llvm-svn: 43734