llvm-svn: 81800

llvm-svn: 81799

Add early coalescing to liveintervals. This is work in progress and is known to miscompute some tests. Read it at your own rish, I have aged 10 year while writing this.

The gist of this is if source of some of the copies that feed into a phi join is defined by the phi join, we'd like to eliminate them. However, if any of the non-identity source overlaps the live interval of the phi join then the coalescer won't be able to coalesce them. The early coalescer's job is to eliminate the identity copies by partially-coalescing the two live intervals.

llvm-svn: 81796

created once, so shouldn't be stuck in the middle of the loop. Also early exit
if there are no uses of UnwindInst in the function.

llvm-svn: 81785

obtained via accessor functions.

llvm-svn: 81782

llvm-svn: 81773

llvm-svn: 81770

Patch by Xerxes Rånby!

llvm-svn: 81768

llvm-svn: 81766

llvm-svn: 81764

llvm-svn: 81758

llvm-svn: 81757

llvm-svn: 81755

full AsmPrinter, and change TargetRegistry to keep track
of registered MCInstPrinters.

llvm-mc is still linking in the entire
target foo to get the code emitter stuff, but this is an
important step in the right direction.

llvm-svn: 81754

llvm-svn: 81753

llvm-svn: 81752

llvm-svn: 81751

llvm-svn: 81750

been told that the type is no longer abstract.

llvm-svn: 81749

be a MCInstPrinter.

llvm-svn: 81746

llvm-svn: 81745

llvm-svn: 81744

llvm-svn: 81742

llvm-svn: 81741

llvm-svn: 81740

the encoding of the AsmStrs table saving a byte or two.

llvm-svn: 81739

llvm-svn: 81736

Also break the type verification stuff into its own TypeSet to keep the
Verifier pass from becoming an AbstractTypeUser.

llvm-svn: 81729

llvm-svn: 81728

llvm-svn: 81727

llvm-svn: 81726

 - 'make unittests' still builds and tests.
 - 'make unitcheck' inside a unittest directory runs the tests in that directory.

llvm-svn: 81725

llvm-svn: 81724

llvm-svn: 81723

cross-compiling.

Patch by Xerxes Rånby!

llvm-svn: 81722

One change I'm not folding in is the removal of two unused variables that
caused warnings, because those were there for expository purposes.

llvm-svn: 81721

 - This eliminates a race between building the unittests and linking the
   UnitTestMain library.

llvm-svn: 81719

llvm-svn: 81718

change as types are refined. Remove abstract types from CheckedTypes when they
we're informed that they have been refined. The only way types get refined in
the verifier is when later function passes start optimizing. Fixes PR4970.

llvm-svn: 81716

llvm-svn: 81714