Duncan Sands c43cee3fbb Move some shift transforms out of instcombine and into InstructionSimplify. ...

While there, I noticed that the transform "undef >>a X -> undef" was wrong.
For example if X is 2 then the top two bits must be equal, so the result can
not be anything.  I fixed this in the constant folder as well.  Also, I made
the transform for "X << undef" stronger: it now folds to undef always, even
though X might be zero.  This is in accordance with the LangRef, but I must
admit that it is fairly aggressive.  Also, I added "i32 X << 32 -> undef"
following the LangRef and the constant folder, likewise fairly aggressive.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123417 91177308-0d34-0410-b5e6-96231b3b80d8

2011-01-14 00:37:45 +00:00

..

AliasAnalysis.h

fit in 80 cols

2011-01-08 20:53:41 +00:00

AliasSetTracker.h

Reapply r116831 and r116839, converting AliasAnalysis to use

2010-10-19 22:54:46 +00:00

CallGraph.h

Add spliceFunction to the CallGraph interface. This allows users to efficiently

2011-01-03 03:19:35 +00:00

CaptureTracking.h

80-columns

2010-07-13 05:50:08 +00:00

CFGPrinter.h

Remove tab characters and 80-col.

2010-07-12 05:26:37 +00:00

CodeMetrics.h

make this file properly self contained.

2011-01-08 08:19:49 +00:00

ConstantFolding.h

Clarify that constant folding of instructions applies when all operands

2010-11-23 10:16:18 +00:00

ConstantsScanner.h

…

DebugInfo.h

Add support to create class type.

2010-12-08 20:18:20 +00:00

DIBuilder.h

Add support to create debug info for functions and methods.

2010-12-08 20:42:44 +00:00

DominanceFrontier.h

split dom frontier handling stuff out to its own DominanceFrontier header,

2011-01-02 22:09:33 +00:00

DominatorInternals.h

Put the Dominator improvements back in. They were not the cause of bootstrap miscomparisons.

2011-01-11 21:23:09 +00:00

Dominators.h

Put the Dominator improvements back in. They were not the cause of bootstrap miscomparisons.

2011-01-11 21:23:09 +00:00

DomPrinter.h

…

DOTGraphTraitsPass.h

Remove WriteGraph's Name argument, which it didn't use, and

2010-09-27 15:34:19 +00:00

FindUsedTypes.h

Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which

2010-10-19 17:21:58 +00:00

InlineCost.h

Now using a variant of the existing inlining heuristics to decide whether to create a given specialization of a function in PartialSpecialization. If the total performance bonus across all callsites passing the same constant exceeds the specialization cost, we create the specialization.

2010-10-09 22:06:36 +00:00

InstructionSimplify.h

Move some shift transforms out of instcombine and into InstructionSimplify.

2011-01-14 00:37:45 +00:00

Interval.h

…

IntervalIterator.h

Use std::vector rather than SmallVector here because SmallVector

2010-07-08 13:06:08 +00:00

IntervalPartition.h

Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which

2010-10-19 17:21:58 +00:00

IVUsers.h

Revert 112442 and 112440 until the compile time problems introduced

2010-09-01 01:45:53 +00:00

LazyValueInfo.h

Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which

2010-10-19 17:21:58 +00:00

LibCallAliasAnalysis.h

Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which

2010-10-19 17:21:58 +00:00

LibCallSemantics.h

Remove the experimental AliasAnalysis::getDependency interface, which

2010-09-14 21:25:10 +00:00

Lint.h

Fix Lint printing warnings multiple times. Remove the ErrorStr

2010-05-26 22:28:53 +00:00

LiveValues.h

…

Loads.h

Move FindAvailableLoadedValue isSafeToLoadUnconditionally out of

2010-05-28 16:19:17 +00:00

LoopDependenceAnalysis.h

Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which

2010-10-19 17:21:58 +00:00

LoopInfo.h

split dom frontier handling stuff out to its own DominanceFrontier header,

2011-01-02 22:09:33 +00:00

LoopPass.h

Make LoopPass::getContainedPass return a LoopPass* instead of a Pass*

2010-08-11 20:34:43 +00:00

MemoryBuiltins.h

clean up handling of 'free', detangling it from everything else.

2010-11-30 01:28:33 +00:00

MemoryDependenceAnalysis.h

Rewrite the main DSE loop to be written in terms of reasoning

2010-11-30 07:23:21 +00:00

Passes.h

Move NoAA out of BasicAliasAnalysis.cpp into its own file, now that

2010-10-19 23:09:08 +00:00

PHITransAddr.h

Reapply r97010, the speculative revert failed.

2010-02-24 08:48:04 +00:00

PostDominators.h

split dom frontier handling stuff out to its own DominanceFrontier header,

2011-01-02 22:09:33 +00:00

ProfileInfo.h

Convert debug messages to use dbgs(). Generally this means

2009-12-23 17:55:11 +00:00

ProfileInfoLoader.h

…

ProfileInfoTypes.h

…

RegionInfo.h

Add single entry / single exit accessors.

2011-01-13 23:18:04 +00:00

RegionIterator.h

Add new RegionInfo pass.

2010-07-22 07:46:31 +00:00

RegionPass.h

Add RegionPass support.

2010-10-20 01:54:44 +00:00

RegionPrinter.h

Add new RegionInfo pass.

2010-07-22 07:46:31 +00:00

ScalarEvolution.h

some comment improvements.

2011-01-11 17:11:59 +00:00

ScalarEvolutionExpander.h

Introduce memoization for ScalarEvolution dominates and properlyDominates

2010-11-18 00:34:22 +00:00

ScalarEvolutionExpressions.h

Make SCEV::getType() and SCEV::print non-virtual. Move SCEV::hasOperand

2010-11-17 22:27:42 +00:00

ScalarEvolutionNormalization.h

Generalize IVUsers to track arbitrary expressions rather than expressions

2010-04-07 22:27:08 +00:00

SparsePropagation.h

…

Trace.h

…

ValueTracking.h

move isBytewiseValue out to ValueTracking.h/cpp

2010-12-26 20:15:01 +00:00

Verifier.h

Fix a comment.

2010-04-08 17:41:04 +00:00