LiveVariables::HandlePhysRegDef private they use information that is
not in memory when LiveVariables finishes the analysis.

Also update the TwoAddressInstructionPass to not use this interface.

llvm-svn: 10755

The first change (which is disabled) compactifies all of the function constant
pools into the global constant pool, in an attempt to reduce the amount of
duplication and overhead.  Unfortunately, as the comment indicates, this is
not yet a win, so it is disabled.

The second change sorts the typeid's so that those types that can be used
by instructions in the program appear earlier in the table than those that
cannot (such as structures and arrays).  This causes the instructions to
be able to use the dense encoding more often, saving about 5K on 254.gap.
This is only a .65% savings though, unfortunately. :(

llvm-svn: 10754

llvm-svn: 10753

llvm-svn: 10752

Fix iterator invalidation problems which was causing -mstrip to miss some
entries, and read free'd memory.  This shrinks the symbol table of 254.gap
from 333 to 284 bytes!  :)

llvm-svn: 10751

occurs when the symbol table for a module has been stripped, making all of the
function local symbols go away.

This saves 6728 bytes in the stripped bytecode file of 254.gap (which obviously
has 841 functions), which isn't a ton, but helps and was easy.

llvm-svn: 10750

llvm-svn: 10749

llvm-svn: 10747

llvm-svn: 10742

llvm-svn: 10741

* Refactor reader stuff out of include/llvm/Bytecode/Primitives.h.  This is
  internal implementation details for the reader, not public interfaces!

llvm-svn: 10739

internal implementation details for the writer, not public interfaces!

llvm-svn: 10738

llvm-svn: 10737

llvm-svn: 10735

llvm-svn: 10734

llvm-svn: 10733

llvm-svn: 10732

This should get hunked over to the Sparc backend, along with
MachineCodeForInstruction and a bunch of files in include/llvm/Codegen,
but those battles will have to wait for a later time.

llvm-svn: 10731

llvm-svn: 10730

makes the incestuous #include'ing of sparc internal headers much less
disturbing.  :)

llvm-svn: 10729

llvm-svn: 10728

llvm-svn: 10727

llvm-svn: 10726

llvm-svn: 10725

add flags for PR82

llvm-svn: 10724

llvm-svn: 10722

llvm-svn: 10721

getSubLoops/getTopLevelLoops methods, replacing them with iterator-based
accessors.

llvm-svn: 10714

of the register allocator as follows:

       before   after
mesa   2.3790  1.5994
vpr    2.6008  1.2078
gcc    1.9840  0.5273
mcf    0.2569  0.0470
eon    1.8468  1.4359
twolf  0.9475  0.2004
burg   1.6807  1.3300
lambda 1.2191  0.3764

Speedups range anyware from 30% to over 400% :-)

llvm-svn: 10712

llvm-svn: 10711

llvm-svn: 10710

30-50% decrease in running time of the linear scan register allocator.

llvm-svn: 10707

copies.

llvm-svn: 10705

llvm-svn: 10701

Add <csignal> so that this file compiles on Solaris.

llvm-svn: 10697

llvm-svn: 10695

llvm-svn: 10693

llvm-svn: 10692

code generators completely ignore them.

llvm-svn: 10691

llvm-svn: 10686