Move this file out of the top-level docs directory

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15429 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify the first example, as the LLVM IR interfaces have evolved.  Other
examples in this doc could also be simplified dramatically in similar ways.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15428 91177308-0d34-0410-b5e6-96231b3b80d8

Use the new prcontext script.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15427 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for using the prcontext python script instead of grep -C.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15426 91177308-0d34-0410-b5e6-96231b3b80d8

New python script that print a specified number of lines surrounding a
located pattern.
In other words, grep -C for Solaris.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15425 91177308-0d34-0410-b5e6-96231b3b80d8

Set a variable so that we can find the python interpreter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15424 91177308-0d34-0410-b5e6-96231b3b80d8

* Use simpler instruction templates to define instructions
* Fix several extended opcodes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15423 91177308-0d34-0410-b5e6-96231b3b80d8

Replace patterns 0, 4, and 5 with simpler heirarchical definitions that use the
official PowerPC instruction format lingo: X- and D-form.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15422 91177308-0d34-0410-b5e6-96231b3b80d8

Add link for IRC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15421 91177308-0d34-0410-b5e6-96231b3b80d8

Written by

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15420 91177308-0d34-0410-b5e6-96231b3b80d8

continue hacking

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15419 91177308-0d34-0410-b5e6-96231b3b80d8

Revamp the index page

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15418 91177308-0d34-0410-b5e6-96231b3b80d8

... now real HTML 4.01 strict!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15417 91177308-0d34-0410-b5e6-96231b3b80d8

Substantially hack on and clean up the release notes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15416 91177308-0d34-0410-b5e6-96231b3b80d8

Hide this option

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15415 91177308-0d34-0410-b5e6-96231b3b80d8

Separate instruction formats from instruction definitions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15414 91177308-0d34-0410-b5e6-96231b3b80d8

Add #include <cstdlib> and abort() to silence a warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15413 91177308-0d34-0410-b5e6-96231b3b80d8

* ceil() requires #include <cmath> for compilation
* Alphabetize #includes
* Fix some lines to fit within 80 cols

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15412 91177308-0d34-0410-b5e6-96231b3b80d8

This pass has proven its metal, remove -disable option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15411 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a regression in InstCombine/xor.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15410 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15409 91177308-0d34-0410-b5e6-96231b3b80d8

Adding ModuloScheduling so that it compiles for everyone.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15408 91177308-0d34-0410-b5e6-96231b3b80d8

Adding friend MSSchedule for ModuloScheduling pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15407 91177308-0d34-0410-b5e6-96231b3b80d8

Fix warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15406 91177308-0d34-0410-b5e6-96231b3b80d8

Initial testcase for bytecode compatibility regression test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15405 91177308-0d34-0410-b5e6-96231b3b80d8

Update.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15404 91177308-0d34-0410-b5e6-96231b3b80d8

Convert all I<> instructions to asmformat.
Delete the 'name' field of all instructions that have asmformats.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15403 91177308-0d34-0410-b5e6-96231b3b80d8

Dereferencing end() is bad.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15402 91177308-0d34-0410-b5e6-96231b3b80d8

Add some immediate forms, make name optional

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15401 91177308-0d34-0410-b5e6-96231b3b80d8

Be picky

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15400 91177308-0d34-0410-b5e6-96231b3b80d8

Instructions no longer need to have names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15399 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate 3 of the X86 printImplicit* flags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15398 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid of 3 of the 4 'printimplicit' flags.  Implicit operands are now
explicitly listed in the asm string.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15397 91177308-0d34-0410-b5e6-96231b3b80d8

Convert more instructions over to the asmprinter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15396 91177308-0d34-0410-b5e6-96231b3b80d8

Handle registers a bit more efficiently

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15395 91177308-0d34-0410-b5e6-96231b3b80d8

give FP stack registers names

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15394 91177308-0d34-0410-b5e6-96231b3b80d8

Switch more instructions over to using the asmprinter.  Fix bugs in the emission
of in/out instructions (missing %'s on registers).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15393 91177308-0d34-0410-b5e6-96231b3b80d8

The tblgen'erated asmparser wants a way to print operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15392 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for asm printing machine instructions that have operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15391 91177308-0d34-0410-b5e6-96231b3b80d8

Parse the operand list of the instruction.  We currently support register and immediate operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15390 91177308-0d34-0410-b5e6-96231b3b80d8

Rename the Printer class -> X86AsmPrinter.
Include the tablegenerated assembly writer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15389 91177308-0d34-0410-b5e6-96231b3b80d8

Factor a bunch of the rules and add support for generating the asmwriter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15388 91177308-0d34-0410-b5e6-96231b3b80d8

Specify an asm string and operands lists for a bunch of instructions.
This only really covers no-operand instructions so far.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15387 91177308-0d34-0410-b5e6-96231b3b80d8

Initial cut at an asm writer emitter.  So far, this only handles emission of
instructions, and only instructions that take no operands at that!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15386 91177308-0d34-0410-b5e6-96231b3b80d8

Add, and start using, the CodeGenInstruction class.  This class represents
an instance of the Instruction tablegen class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15385 91177308-0d34-0410-b5e6-96231b3b80d8

Add the 'ops' marker, add an AsmString initializer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15383 91177308-0d34-0410-b5e6-96231b3b80d8

Rename CodeGenWrappers.(cpp|h) -> CodeGenTarget.(cpp|h)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15382 91177308-0d34-0410-b5e6-96231b3b80d8

Finegrainify namespacification

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15381 91177308-0d34-0410-b5e6-96231b3b80d8

Completely disable the pattern isel until it is more substantial.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15380 91177308-0d34-0410-b5e6-96231b3b80d8

Entirely eliminate all patterns and expanders from this file.  We shall go
with an incremental approach rather than a revolutionary approach.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15379 91177308-0d34-0410-b5e6-96231b3b80d8

Move the 'Expander' node to later in the file, with the other experimental
stuff.  The pattern becomes a list, add some stuff, add some comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15378 91177308-0d34-0410-b5e6-96231b3b80d8

Remove obsolete file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15377 91177308-0d34-0410-b5e6-96231b3b80d8

Make OptimizeBlock take a MachineFunction::iterator instead of a
MachineBasicBlock* as a parameter so that nxext() and prior() helper
functions can work naturally on it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15376 91177308-0d34-0410-b5e6-96231b3b80d8

Next on a pointer increments the pointer, not an iterator

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15375 91177308-0d34-0410-b5e6-96231b3b80d8

Use next() helper to make code more readable. Use
MachineFunction::iterator instead of MachineBasicBlock* to avoid
dereferencing end iterators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15373 91177308-0d34-0410-b5e6-96231b3b80d8

Use MachineFunction::iterator instead of a MachineBasicBlock* because
FallThrough maybe == to MF.end().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15372 91177308-0d34-0410-b5e6-96231b3b80d8

Align breaks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15371 91177308-0d34-0410-b5e6-96231b3b80d8

Expose breakcriticaledges as a functionpass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15370 91177308-0d34-0410-b5e6-96231b3b80d8

Expose this as a functionpass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15369 91177308-0d34-0410-b5e6-96231b3b80d8

Implement a simple target-independent CFG cleanup pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15368 91177308-0d34-0410-b5e6-96231b3b80d8

New pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15367 91177308-0d34-0410-b5e6-96231b3b80d8

Expose some helpful methods

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15366 91177308-0d34-0410-b5e6-96231b3b80d8

Add breaks

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15365 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify code a bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15364 91177308-0d34-0410-b5e6-96231b3b80d8

Correctly spell 'unconditional'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15363 91177308-0d34-0410-b5e6-96231b3b80d8

Implement insertGoto and reverseBranchCondition for the X86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15362 91177308-0d34-0410-b5e6-96231b3b80d8

Change signature to take two basic blocks: the target and the one
where the goto will be appended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15361 91177308-0d34-0410-b5e6-96231b3b80d8

Doxygenify some comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15360 91177308-0d34-0410-b5e6-96231b3b80d8

Remove const from iterators passed by value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15359 91177308-0d34-0410-b5e6-96231b3b80d8

Add declarations for insertGoto and reverseBranchCondition.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15358 91177308-0d34-0410-b5e6-96231b3b80d8

I'm pretty sure that ba is branch always, which is a barrier.  Brg should
check this :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15357 91177308-0d34-0410-b5e6-96231b3b80d8

Mark barrier instructions.  Execution does not fall through uncond branches
or return intructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15356 91177308-0d34-0410-b5e6-96231b3b80d8

Support new flag

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15355 91177308-0d34-0410-b5e6-96231b3b80d8

New flag

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15354 91177308-0d34-0410-b5e6-96231b3b80d8

Add new M_BARRIER_FLAG flag, and isBarrier() method to TargetInstrInfo

opCode -> Opcode

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15353 91177308-0d34-0410-b5e6-96231b3b80d8

Add some machine CFG related stuff

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15352 91177308-0d34-0410-b5e6-96231b3b80d8

Updated ModuloScheduling. It makes it  all the wya through register allocation on the new code!!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15351 91177308-0d34-0410-b5e6-96231b3b80d8

* Conditional save/restore of LR disabled as it's not quite correct
* sumarray2d fixed: large fixed-size alloca
* make is now compileable
* Re-organized tests to fit them under proper headings

Patch by Nate Begeman.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15347 91177308-0d34-0410-b5e6-96231b3b80d8

Do not mark LR as callee-save: not quite correctly done.   Patch: Nate Begeman.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15346 91177308-0d34-0410-b5e6-96231b3b80d8

* Temporarily suspend LR save/restore optimization as it is not quite correct
* Implement large fixed-size allocas            Entire patch by Nate Begeman.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15345 91177308-0d34-0410-b5e6-96231b3b80d8

Enable compilation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15344 91177308-0d34-0410-b5e6-96231b3b80d8

Fix De Morgan's name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15343 91177308-0d34-0410-b5e6-96231b3b80d8

Start using the PatternMatcher a bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15342 91177308-0d34-0410-b5e6-96231b3b80d8

Check in some useful helper routines for doing ML-style pattern matching on
the LLVM IR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15341 91177308-0d34-0410-b5e6-96231b3b80d8

I demand the ability to say 'if (isa<Value>(V))'!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15340 91177308-0d34-0410-b5e6-96231b3b80d8

Convert a few assertions with side-effects into regular old runtime checks.
These side-effects seem to make a difference when using llc -march=sparcv9
in Release mode (i.e., with -DNDEBUG); when they are left out, lots of
instructions just get dropped on the floor, because they never end up
in the schedule.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15339 91177308-0d34-0410-b5e6-96231b3b80d8

Fix #includes of i*.h => Instructions.h as per PR403:
http://llvm.cs.uiuc.edu/PR403 .

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15338 91177308-0d34-0410-b5e6-96231b3b80d8

Fix #includes of i*.h => Instructions.h as per PR403.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15337 91177308-0d34-0410-b5e6-96231b3b80d8

Fix #includes of i*.h => Instructions.h as per PR403.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15334 91177308-0d34-0410-b5e6-96231b3b80d8

Fix #includes of i*.h => Instructions.h as per PR403:
http://llvm.cs.uiuc.edu/PR403 .

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15333 91177308-0d34-0410-b5e6-96231b3b80d8

Header moved

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15332 91177308-0d34-0410-b5e6-96231b3b80d8

Fix #includes of i*.h => Instructions.h as per PR403:
http://llvm.cs.uiuc.edu/PR403 .

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15331 91177308-0d34-0410-b5e6-96231b3b80d8

Fix #includes of i*.h => Instructions.h as per PR403.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15328 91177308-0d34-0410-b5e6-96231b3b80d8

Fix #includes of i*.h files => Instructions.h as per PR403

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15327 91177308-0d34-0410-b5e6-96231b3b80d8

Merge i*.cpp definitions into Instructions.cpp as part of bug403.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15326 91177308-0d34-0410-b5e6-96231b3b80d8

Merge i*.h headers into Instructions.h as part of bug403.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15325 91177308-0d34-0410-b5e6-96231b3b80d8

Fix test/Regression/Analysis/BasicAA/2004-07-28-MustAliasbug.llx

This also fixes the miscompilation of MallocBench/gs with dead store
elimination enabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15324 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid of a few dead method declarations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15323 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid of calls to void llvm::printSet(const ValueSet &).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15322 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid of calls to void llvm::printSet(const ValueSet &).
Use LiveRange's iterator types and operations instead of ValueSet's.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15321 91177308-0d34-0410-b5e6-96231b3b80d8