llvm-svn: 10378

This makes LLVM and the generated C code more portable.

llvm-svn: 10377

Reorder #includes
Implement: IndVarsSimplify/2003-12-10-IndVarDeadCode.ll

llvm-svn: 10376

the write() system call because it returns 64 bits on Solaris 64 bit,
and an implicit return value of int says it returns 32 bits.
Admittedly, this is a bit of a hack.

llvm-svn: 10375

llvm-svn: 10374

Fix bug: LoopSimplify/2003-12-10-ExitBlocksProblem.ll

llvm-svn: 10373

aggressive LICM

llvm-svn: 10372

llvm-svn: 10371

llvm-svn: 10370

Make LICM itself a bit more efficient, and make the generated code more efficient too: don't insert a store in every exit block, because a particular block may be exited to more than once by a loop

llvm-svn: 10369

what it's supposed to do.
Just leave this library as a dummy library for now until we have time to
port a real pthread library (or get glibc working).

llvm-svn: 10368

llvm-svn: 10367

Provide a context module to WriteAsOperand

llvm-svn: 10366

llvm-svn: 10364

This is needed since libstdc++ uses pthread_once().

llvm-svn: 10360

llvm-svn: 10359

better job, but this is the majority of the work.  This implements
LICM/sink*.ll

llvm-svn: 10358

llvm-svn: 10357

llvm-svn: 10356

Get rid of %debug - Mac OS X bison doesn't have it.  sigh.

llvm-svn: 10352

llvm-svn: 10351

llvm-svn: 10350

llvm-svn: 10349

llvm-svn: 10348

debugging front-end miscompilations.

llvm-svn: 10347

pass does not do a canonnicalization that the sinker wants.

llvm-svn: 10346

llvm-svn: 10345

llvm-svn: 10344

are sunk

llvm-svn: 10343

should make subsequent changes simpler.  This also allows us to hoist vaarg
and vanext instructions

llvm-svn: 10342

Code cleanups
Make LICM::SafeToHoist marginally more efficient

llvm-svn: 10341

llvm-svn: 10339

llvm-svn: 10338

llvm-svn: 10337

This is here to remind me to get back to this after a while.

llvm-svn: 10336

llvm-svn: 10335

llvm-svn: 10334

Also make sure to clean up any PHI nodes that are inserted which are pointless.

llvm-svn: 10333

We now insert accumulator variables as necessary to eliminate tail recursion
more aggressively.  This is still fairly limited, but allows us to transform
fib/factorial, and other functions into nice happy loops.  :)

llvm-svn: 10332

tail recursion

llvm-svn: 10331