More testcases for SCCP

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2444 91177308-0d34-0410-b5e6-96231b3b80d8

* Simplify the code by not bothering to name the folded constant
* Do not skip the instruction immediately after a folded instruction.  This
  was causing the testcase failure:
test/Regression/Transforms/SCCP/2002-05-02-MissSecondInst.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2443 91177308-0d34-0410-b5e6-96231b3b80d8

Additional testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2442 91177308-0d34-0410-b5e6-96231b3b80d8

Run the SCCP test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2441 91177308-0d34-0410-b5e6-96231b3b80d8

First testcase for SCCP pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2440 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify the testcase a bit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2439 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2438 91177308-0d34-0410-b5e6-96231b3b80d8

Implement cast operations on booleans to allow casting bools to ints, f.e.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2437 91177308-0d34-0410-b5e6-96231b3b80d8

* Fix a bug (test/Regression/Assembler/2002-05-02-InvalidForwardRef.ll)
  introduced in the 1.66 revision of this file.
* Convert a hard coded constant to a symbolic value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2436 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for assembler failure

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2435 91177308-0d34-0410-b5e6-96231b3b80d8

The implementation keyword is no longer neccesary

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2434 91177308-0d34-0410-b5e6-96231b3b80d8

The "implementation" is now allowed but not required by the parser.  All type
definitions must still occur before function bodies, but the wierd keyword is
no longer neccesary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2433 91177308-0d34-0410-b5e6-96231b3b80d8

ExprTypeConvert will already do this transformation, no need to specialize
it here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2431 91177308-0d34-0410-b5e6-96231b3b80d8

Be a little more efficient, do not generate loads and stores with indices in them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2430 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: test/Regression/Transforms/LevelRaise/2002-05-02-BadCastElimination.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2429 91177308-0d34-0410-b5e6-96231b3b80d8

* Add ability to eliminate a bunch of different cascading cast variations
* Allow elimination of getelementptr X, uint 0 (which is a noop)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2428 91177308-0d34-0410-b5e6-96231b3b80d8

Intitial checkin of cast tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2427 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for bug found by Vikram

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2426 91177308-0d34-0410-b5e6-96231b3b80d8

Check another case

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2424 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed bug: test/Regression/Transforms/Mem2Reg/2002-05-01-ShouldNotPromoteThisAlloca.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2423 91177308-0d34-0410-b5e6-96231b3b80d8

New bug testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2422 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unneccesary pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2421 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unneccesary pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2420 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2419 91177308-0d34-0410-b5e6-96231b3b80d8

Fix problem where subpasses would invalidate all analyses outstanding

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2418 91177308-0d34-0410-b5e6-96231b3b80d8

Add folding rules for mul X, 0 and mul X, 2

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2417 91177308-0d34-0410-b5e6-96231b3b80d8

New test cases for mul folding

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2416 91177308-0d34-0410-b5e6-96231b3b80d8

Significantly clean up SCCP pass.  Now the two classes are merged and in
an anonymous namespace where they belong.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2415 91177308-0d34-0410-b5e6-96231b3b80d8

Range insertion now returns an iterator

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2414 91177308-0d34-0410-b5e6-96231b3b80d8

Make the range insert operation return an iterator, even though the STL
range insert doesn't

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2413 91177308-0d34-0410-b5e6-96231b3b80d8

These aren't tools

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2412 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unused files:  This is the old induction varaible cannonicalization
pass built on top of interval analysis

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2411 91177308-0d34-0410-b5e6-96231b3b80d8

Move constant merging pass earlier
Include the SCCP pass in gccas

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2410 91177308-0d34-0410-b5e6-96231b3b80d8

Fix for problem when allocating something like this:
   malloc(100-i);

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2409 91177308-0d34-0410-b5e6-96231b3b80d8

Merge Chris's script with the one already checked in

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2408 91177308-0d34-0410-b5e6-96231b3b80d8

Fix #include broken by iMemory.h not including DerivedTypes.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2407 91177308-0d34-0410-b5e6-96231b3b80d8

Add neccesary #include

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2406 91177308-0d34-0410-b5e6-96231b3b80d8

changes because iMemory.h no longer #includes DerivedTypes.h
This only requires Type.h anyway

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2405 91177308-0d34-0410-b5e6-96231b3b80d8

Changes so that iMemory.h doesn't include DerivedTypes.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2404 91177308-0d34-0410-b5e6-96231b3b80d8

Change to allow iMemory.h to avoid including DerivedTypes.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2403 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: test/Regression/Other/2002-04-29-NameBinding.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2402 91177308-0d34-0410-b5e6-96231b3b80d8

Remove InstForest from analysis namespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2401 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate dead global variables

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2400 91177308-0d34-0410-b5e6-96231b3b80d8

Remove analysis namespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2399 91177308-0d34-0410-b5e6-96231b3b80d8

New test for broken asm parser

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2398 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate duplicate or unneccesary #include's

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2397 91177308-0d34-0410-b5e6-96231b3b80d8

Remove broken assertion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2396 91177308-0d34-0410-b5e6-96231b3b80d8

Add new optional getPassName() virtual function that a Pass can override
to make debugging output a lot nicer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2395 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new command line option for PassManager using utilities.
Now for llc, gccas, analyze, opt, etc you can specify the -time-passes
command line option that outputs a timing summary report that indicates
how long each pass takes to execute.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2394 91177308-0d34-0410-b5e6-96231b3b80d8

Stub functions for timing support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2393 91177308-0d34-0410-b5e6-96231b3b80d8

More cleanups

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2392 91177308-0d34-0410-b5e6-96231b3b80d8

Code cleanups

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2391 91177308-0d34-0410-b5e6-96231b3b80d8

Remove dead code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2390 91177308-0d34-0410-b5e6-96231b3b80d8

FIXME removed: malloc/alloca ALWAYS have a size argument

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2389 91177308-0d34-0410-b5e6-96231b3b80d8

Rename functions to be more consistend with other pass constructors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2388 91177308-0d34-0410-b5e6-96231b3b80d8

Todo has been implemented, remove it

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2387 91177308-0d34-0410-b5e6-96231b3b80d8

Tighten up the AnalysisUsage of lots of passes, primarily to correctly indicate whether or not they invalidate the CFGA

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2386 91177308-0d34-0410-b5e6-96231b3b80d8

Tighten up the AnalysisUsage of lots of passes, primarily to correctly indicate whether or not they invalidate the CFG

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2385 91177308-0d34-0410-b5e6-96231b3b80d8

Move FunctionPass::doesNotModifyCFG to AnalysisUsage::preservesCFG()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2384 91177308-0d34-0410-b5e6-96231b3b80d8

* Add a stub to FunctionPass so that subclasses can declare that they do not
  modify the CFG.  It currently does nothing, but will in the future.
* Changes to make the public PassManager.h be MUCH smaller, and devoid of
  implementation details.  Now PassManager is just a Pimpl class that wraps
  PassManagerT<Module>, but lib/VMCore/Pass.cpp is now the only class that
  has to #include PassManagerT.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2383 91177308-0d34-0410-b5e6-96231b3b80d8

Move include/llvm/PassManager.h to lib/VMCore/PassManagerT.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2382 91177308-0d34-0410-b5e6-96231b3b80d8

Add #include that was removed from TargetMachine.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2381 91177308-0d34-0410-b5e6-96231b3b80d8

Use forward decl instead of #include

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2380 91177308-0d34-0410-b5e6-96231b3b80d8

Include appropriate file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2379 91177308-0d34-0410-b5e6-96231b3b80d8

Split ConstantVals.h into Constant.h and Constants.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2378 91177308-0d34-0410-b5e6-96231b3b80d8

Fix two FIXME's

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2377 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify and update code a bit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2376 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate the PromoteInstance class, incorporating it into the PromotePass
class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2375 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate visited, CurrentValue, and WriteSets as instance variables of
PromoteInstance.  Make them local variables that are passed around as
appropriate.  Especially in the case of CurrentValue, this makes the
code simpler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2374 91177308-0d34-0410-b5e6-96231b3b80d8

* Fix bug: test/Regression/Transforms/Mem2Reg/2002-03-28-UninitializedVal.ll
* Minor cleanup that was missed in last patch

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2373 91177308-0d34-0410-b5e6-96231b3b80d8

This huge changeset is a strictly cleanup change
Bugfixes will come in the next revision so that the diff is obvious.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2372 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate the cfg namespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2371 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate the cfg namespace, moving LoopInfo, Dominators, Interval* classes
to the global namespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2370 91177308-0d34-0410-b5e6-96231b3b80d8

Remove all contents of the cfg namespace to the global namespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2369 91177308-0d34-0410-b5e6-96231b3b80d8

Remove obsolete namespace from example

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2368 91177308-0d34-0410-b5e6-96231b3b80d8

Remove extra unused argument from CheckFailed method
Remove extraneous \n's from assert strings

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2367 91177308-0d34-0410-b5e6-96231b3b80d8

The check to see if an external function was marked internal was not reachable!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2366 91177308-0d34-0410-b5e6-96231b3b80d8

Expose the internalize pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2365 91177308-0d34-0410-b5e6-96231b3b80d8

Run the internalize pass to mark all functions except main internal when
linking the final program to allow smarter optimizations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2364 91177308-0d34-0410-b5e6-96231b3b80d8

Be careful not to make "external" function internal

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2363 91177308-0d34-0410-b5e6-96231b3b80d8

Initial checkin of new "Internalize" pass for GCCLD

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2362 91177308-0d34-0410-b5e6-96231b3b80d8

Minor changes to allow Modules (which are no longer Values) to work

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2361 91177308-0d34-0410-b5e6-96231b3b80d8

Use operator << to print modules

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2360 91177308-0d34-0410-b5e6-96231b3b80d8

SymTabValue class incorporated into Function and Module classes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2359 91177308-0d34-0410-b5e6-96231b3b80d8

Include an operator<<, to print modules

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2358 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate use of SymTabValue class

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2357 91177308-0d34-0410-b5e6-96231b3b80d8

The contents of the SymTabValue class have been incorporated into the
Module and Function classes directly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2356 91177308-0d34-0410-b5e6-96231b3b80d8

* Incorporate the contents of SymTabValue into Function and Module
* Module no longer subclasses Value

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2355 91177308-0d34-0410-b5e6-96231b3b80d8

Module's are no longer values

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2354 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify code
Remove unneccesary getID variant for module's

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2353 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unneccesary #include

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2352 91177308-0d34-0410-b5e6-96231b3b80d8

Module's are no longer Value subclasses

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2351 91177308-0d34-0410-b5e6-96231b3b80d8

Fix signed/unsigned comparison warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2350 91177308-0d34-0410-b5e6-96231b3b80d8

Remove forward def'ns that are already in Value.h
Do not support output of Modules directly

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2349 91177308-0d34-0410-b5e6-96231b3b80d8

s/Method/Function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2348 91177308-0d34-0410-b5e6-96231b3b80d8

Module's are no longer Value's.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2347 91177308-0d34-0410-b5e6-96231b3b80d8

The interesting contents of SymTabValue were incorporated into Function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2346 91177308-0d34-0410-b5e6-96231b3b80d8

* Module's are no longer Value's
* Incorporate SymTabValue contents into the Module class

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2345 91177308-0d34-0410-b5e6-96231b3b80d8

Add a forward defn for Module since it's no longer in Value.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2344 91177308-0d34-0410-b5e6-96231b3b80d8

* Incorporate the functionality of SymTabValue into Function
* s/Method/Function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2343 91177308-0d34-0410-b5e6-96231b3b80d8