1. Get the path to the pwd binary (/bin/pwd usually) from configure.
2. Use that path to run pwd in all path variables set in Makefile.config.in
The hope is that these changes will resolve symlinks to physical paths. This
should work on all platforms where the binary pwd defaults to printing
physical paths. The shell version of pwd generally doesn't (it will print
the symlink path).

llvm-svn: 29381

Implement pop_back.
Chage some code to use 'iterator' instead of T*.  This unbreaks operators=.

llvm-svn: 29380

This commit improves bugpoints speed. On my G4 this changed caused kimwitu++ to run through bugpoint in 1091.15 seconds (user + system time). The time it took to run this on my G4 before I made these changes is 1420.82 seconds (user + system time). This is a speedup of about 5.5 minutes.

This is faster because SplitFunctionsOutOfModule no longer calls Clone Module and then removes the functions it doesnt want from the module returned. Instead it creates a module and copies over the specified functions, making changes to the new and old module where neccessary. This reduces the memory demand.

llvm-svn: 29379

llvm-svn: 29378

llvm-svn: 29377

llvm-svn: 29376

llvm-svn: 29374

llvm-svn: 29373

        # InlineAsm Start

        # InlineAsm End

llvm-svn: 29372

llvm-svn: 29371

llvm-svn: 29370

llvm-svn: 29369

have a compile-host version of "nm", not build-host. In order to effect this
we must use autoconf to determine the correct "nm" to use and propagate that
through the makefiles, through llvm-config and finally to GenLibDeps.pl as
an optional argument.
Patch contributed by Anton Korobeynikov. Thanks!

llvm-svn: 29368

llvm-svn: 29367

llvm-svn: 29366

llvm-svn: 29365

llvm-svn: 29362

llvm-svn: 29361

llvm-svn: 29360

llvm-svn: 29359

llvm-svn: 29357

llvm-svn: 29353

Changed how changedir worked. Hopefully now when it fails it will tell us why.

llvm-svn: 29352

llvm-svn: 29351

Darwin doesn't default to it being on.

llvm-svn: 29350

llvm-svn: 29349

llvm-svn: 29348

llvm-svn: 29347

llvm-svn: 29346

llvm-svn: 29345

llvm-svn: 29344

llvm-svn: 29343

cause LLVM to become a cross-compiler but rather cross-compile LLVM so that
it can execute on a platform other than the build host.

llvm-svn: 29339

llvm-svn: 29338

llvm-svn: 29337

Remove NodeDepth; Add NodeId which is a unique id per node per DAG. It can only be set by SelectionDAG.

llvm-svn: 29336

Let each target specific isel provide routine to check if a chain producing node is foldable by another.

llvm-svn: 29335

llvm-svn: 29334

llvm-svn: 29332

Anton Korobeynikov.

llvm-svn: 29330