llvm-svn: 9360

llvm-svn: 9359

llvm-svn: 9357

llvm-svn: 9354

occur in the module

llvm-svn: 9336

llvm-svn: 9335

llvm-svn: 9334

llvm-svn: 9333

llvm-svn: 9332

llvm-svn: 9331

llvm-svn: 9324

llvm-svn: 9321

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

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

llvm-svn: 9318

llvm-svn: 9317

llvm-svn: 9316

llvm-svn: 9312

llvm-svn: 9310

llvm-svn: 9309

llvm-svn: 9307

Header files will be on the way.

llvm-svn: 9298

llvm-svn: 9297

llvm-svn: 9295

llvm-svn: 9289

llvm-svn: 9288

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

llvm-svn: 9280

* Implement R1 = R2 * C where R1 and R2 are 32 or 16 bits. This avoids an
  extra copy into a register, reducing register pressure.

llvm-svn: 9278

llvm-svn: 9270

Change the Opcode enum for PHI nodes from "Instruction::PHINode" to "Instruction::PHI" to be more consistent with the other instructions.

llvm-svn: 9269

  getelementptr code path for use by other code paths (like malloc and alloca).
* Optimize comparisons with zero
* Generate neg, not, inc, and dec instructions, when possible.

This gives some code size wins, which might translate into performance.  We'll
see tommorow in the nightly tester.

llvm-svn: 9267

llvm-svn: 9266

This fixes PR#44.

llvm-svn: 9252

llvm-svn: 9251

llvm-svn: 9250