Final commit for this bug. This removes the last EH holdouts in LLVM
and turns off exception support by using the -fno-exceptions option. This
leads to the following reduction in library and executable sizes:
                DEBUG BUILD                RELEASE BUILD
         before     after   delta     before   after    delta
lib    162,328K  157,616K   4,712    17,864K  16,416K  1,448K
bin    571,444K  557,156K  14,288    63,296K   56,996K 6,300K

Debug   Improvement: 19,000K (2.59%)
Release Improvement:  7,748K (9.55%)

llvm-svn: 29882

information and exception handling.

llvm-svn: 29881

llvm-svn: 29880

llvm-svn: 29879

llvm-svn: 29877

store LR in an arbitrary stack slot
add support for writing varargs functions

llvm-svn: 29876

Remove exception throwing/handling from lib/Bytecode, and adjust its users
to compensate for changes in the interface.

llvm-svn: 29875

llvm-svn: 29874

llvm-svn: 29873

llvm-svn: 29872

right section.

llvm-svn: 29871

llvm-svn: 29870

llvm-svn: 29869

I'm going to wait to put this in HEAD until tomorrow, so as not to clutter the nightly
tester.

llvm-svn: 29868

forgot to put in the analysis usage.

llvm-svn: 29867

Remove exception handling from the bytecode archiver and adjust the llvm-ar
tool to accommodate the new interfaces.

llvm-svn: 29866

llvm-svn: 29865

_swap_16:
        slwi r2, r3, 24
        rlwimi r2, r3, 8, 8, 15
        srwi r3, r2, 16
        blr

now.

llvm-svn: 29864

llvm-svn: 29863

instructions which define each value#) to simplify and improve the coallescer.
In particular, this patch:

1. Implements iterative coallescing.
2. Reverts an unsafe hack from handlePhysRegDef, superceeding it with a
   better solution.
3. Implements PR865, "coallescing" away the second copy in code like:

   A = B
   ...
   B = A

This also includes changes to symbolically print registers in intervals
when possible.

llvm-svn: 29862

Demote check for bison from error to warning and make sure that the
makefile can handle an empty definition for BISON variable.

llvm-svn: 29861

llvm-svn: 29860

utility of the LoopUnroll pass.

Also, add a testcase for multiblock-loop unrolling.

llvm-svn: 29859

Adjust implementation to match the new interface after exception handling
was removed in the Unix verison. NOTE: this hasn't been compiled yet!

llvm-svn: 29858

implement a movcond instruction

llvm-svn: 29857

llvm-svn: 29856

and ensure that a memory overrun won't occur while still writing Length
bytes in the outstring function.

llvm-svn: 29855

llvm-svn: 29854

llvm-svn: 29853

llvm-svn: 29852

llvm-svn: 29851

does emit linkable .o files in very simple cases.

llvm-svn: 29850

This library no longer throws nor handles exceptions, so turn off the
REQUIRES_EH flag.

llvm-svn: 29849

Final remove of exception handling from this file. lib/System can no longer
throw exceptions so there's no need for try/catch blocks here.

llvm-svn: 29848

handles exceptions.

llvm-svn: 29847

Final removal of exceptions from lib/System and adjustment of users to
accommodate.

llvm-svn: 29846

llvm-svn: 29845

llvm-svn: 29844

Eliminate exception throwing from Path::renamePathOnDisk and adjust its
users correspondingly.

llvm-svn: 29843

portion fo the program name via sys::Path().getLast(). This makes error
messages more readable since this is invariably used only in error
messages.  Instead of:
  /path/to/llvm/bin/directory/toolname: error message
we will now get:
  toolname: error message
Also, since we always have a program name (even if its defaulted), don't
check to see if it is set or not when generating error messages. This
eliminates a bunch of constant strings, saving a little under 1K of data.

llvm-svn: 29842