the module.  This change converts it from being a basic block pass to being
a simple pass.  This allows elimination of the annotation and simplification
of the logic for moving constants into global variables.

llvm-svn: 9320

llvm-svn: 9319

this code wasn't fixed correctly so it missed copy operations that used ADDi.

llvm-svn: 9318

llvm-svn: 9317

llvm-svn: 9316

And yet, it's a failure in the ``LowerSwitch'' pass.

llvm-svn: 9315

llvm-svn: 9314

llvm-svn: 9313

llvm-svn: 9312

llvm-svn: 9311

llvm-svn: 9310

llvm-svn: 9309

llvm-svn: 9308

llvm-svn: 9307

llvm-svn: 9306

llvm-svn: 9305

llvm-svn: 9304

llvm-svn: 9303

llvm-svn: 9302

llvm-svn: 9301

llvm-svn: 9300

llvm-svn: 9299

Header files will be on the way.

llvm-svn: 9298

llvm-svn: 9297

llvm-svn: 9296

llvm-svn: 9295

llvm-svn: 9294

llvm-svn: 9293

llvm-svn: 9292

llvm-svn: 9291

between the "Getting Started Quickly" and "Getting Started Slowly" sections.
:)
Removed some of the nit-picky requirements information (i.e. GNU tar and
GNU zip).
Attempted to compact the requirements information so that it is less scary.

llvm-svn: 9290

llvm-svn: 9289

llvm-svn: 9288

Make it assert by default.

llvm-svn: 9287

when changing Instruction.def.  :(

llvm-svn: 9286

llvm-svn: 9285

C is a constant which can be sign-extended from 8 bits without value loss,
and op is one of: add, sub, imul, and, or, xor.

This allows the JIT to emit the one byte version of the constant instead of
the two or 4 byte version.  Because these instructions are very common, this
can save a LOT of code space.  For example, I sampled two benchmarks, 176.gcc
and 254.gap.

BM        Old     New    Reduction
176.gcc 2673621 2548962  4.89%
254.gap  498261  475104  4.87%

Note that while the percentage is not spectacular, this did eliminate
124.6 _KILOBYTES_ of codespace from gcc.  Not bad.

Note that this doesn't effect the llc version at all, because the assembler
already does this optimization.

llvm-svn: 9284

llvm-svn: 9283

llvm-svn: 9282

llvm-svn: 9281