llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-02-08 21:32:39 +00:00

History

Dan Gohman b80a2a686f Remove the code which constant-folded ptrtoint(inttoptr(x)+c) to

getelementptr. Despite only doing so in the case where x is a known
array object and c can be converted to an index within range, this
could still be invalid if c is actually the address of an object
allocated outside of LLVM. Also, SCEVExpander, the original motivation
for this code, has since been improved to avoid inttoptr+ptroint in
more cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96950 91177308-0d34-0410-b5e6-96231b3b80d8

2010-02-23 16:35:41 +00:00

IPA

There are two ways of checking for a given type, for example isa<PointerType>(T)

2010-02-16 11:11:14 +00:00

AliasAnalysis.cpp

Partially address a README by having functionattrs consider calls to

2010-01-06 08:45:52 +00:00

AliasAnalysisCounter.cpp

drop the pass name from the output.

2010-01-22 05:52:51 +00:00

AliasAnalysisEvaluator.cpp

There are two ways of checking for a given type, for example isa<PointerType>(T)

2010-02-16 11:11:14 +00:00

AliasDebugger.cpp

adopt getAdjustedAnalysisPointer in a few more passes.

2010-01-20 20:09:02 +00:00

AliasSetTracker.cpp

…

Analysis.cpp

"In order to ease automatic bindings generation, it would be helpful if boolean values were distinguishable from integers. The attached patch introduces "typedef int LLVMBool;", and uses LLVMBool instead of int throughout the C API, wherever a boolean value is called for."

2010-01-09 22:27:07 +00:00

BasicAliasAnalysis.cpp

There are two ways of checking for a given type, for example isa<PointerType>(T)

2010-02-16 11:11:14 +00:00

CaptureTracking.cpp

There are two ways of checking for a given type, for example isa<PointerType>(T)

2010-02-16 11:11:14 +00:00

CFGPrinter.cpp

…

CMakeLists.txt

…

ConstantFolding.cpp

Remove the code which constant-folded ptrtoint(inttoptr(x)+c) to

2010-02-23 16:35:41 +00:00

DbgInfoPrinter.cpp

Remove dead debug info intrinsics.

2010-01-05 01:10:40 +00:00

DebugInfo.cpp

Use line and column number to distinguish two lexical blocks at the same level.

2010-02-16 21:39:34 +00:00

DomPrinter.cpp

Create Generic DOTGraphTraits Printer/Viewer

2010-01-16 10:56:41 +00:00

InlineCost.cpp

There are two ways of checking for a given type, for example isa<PointerType>(T)

2010-02-16 11:11:14 +00:00

InstCount.cpp

Change dbgs() back to errs() as Chris requested.

2009-12-23 23:29:28 +00:00

InstructionSimplify.cpp

Constant-fold certain comparisons with infinity and negative infinity.

2010-02-22 04:06:03 +00:00

Interval.cpp

…

IntervalPartition.cpp

…

IVUsers.cpp

Remove unused variables and parameters.

2010-02-22 04:11:59 +00:00

LazyValueInfo.cpp

…

LibCallAliasAnalysis.cpp

…

LibCallSemantics.cpp

…

LiveValues.cpp

Fix "the the" and similar typos.

2010-02-10 16:03:48 +00:00

LoopDependenceAnalysis.cpp

…

LoopInfo.cpp

Restore dump() methods to Loop and MachineLoop.

2010-01-05 21:08:02 +00:00

LoopPass.cpp

eliminate a bunch more unneeded dynamic_cast's.

2010-01-22 05:37:10 +00:00

Makefile

make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.

2010-01-24 20:43:08 +00:00

MemoryBuiltins.cpp

Fix "the the" and similar typos.

2010-02-10 16:03:48 +00:00

MemoryDependenceAnalysis.cpp

Split critical edges as needed for load PRE.

2010-02-16 19:51:59 +00:00

PHITransAddr.cpp

Change dbgs() back to errs() as Chris requested.

2009-12-23 23:27:15 +00:00

PointerTracking.cpp

There are two ways of checking for a given type, for example isa<PointerType>(T)

2010-02-16 11:11:14 +00:00

PostDominators.cpp

…

ProfileEstimatorPass.cpp

adopt getAdjustedAnalysisPointer in a few more passes.

2010-01-20 20:09:02 +00:00

ProfileInfo.cpp

adopt getAdjustedAnalysisPointer in a few more passes.

2010-01-20 20:09:02 +00:00

ProfileInfoLoader.cpp

…

ProfileInfoLoaderPass.cpp

adopt getAdjustedAnalysisPointer in a few more passes.

2010-01-20 20:09:02 +00:00

ProfileVerifierPass.cpp

…

README.txt

…

ScalarEvolution.cpp

Remove unused variables and parameters.

2010-02-22 04:11:59 +00:00

ScalarEvolutionAliasAnalysis.cpp

There are two ways of checking for a given type, for example isa<PointerType>(T)

2010-02-16 11:11:14 +00:00

ScalarEvolutionExpander.cpp

Fix SCEVExpander's existing PHI reuse checking to recognize the

2010-02-17 02:39:31 +00:00

SparsePropagation.cpp

…

Trace.cpp

…

ValueTracking.cpp

There are two ways of checking for a given type, for example isa<PointerType>(T)

2010-02-16 11:11:14 +00:00

README.txt

Analysis Opportunities:

//===---------------------------------------------------------------------===//

In test/Transforms/LoopStrengthReduce/quadradic-exit-value.ll, the
ScalarEvolution expression for %r is this:

  {1,+,3,+,2}<loop>

Outside the loop, this could be evaluated simply as (%n * %n), however
ScalarEvolution currently evaluates it as

  (-2 + (2 * (trunc i65 (((zext i64 (-2 + %n) to i65) * (zext i64 (-1 + %n) to i65)) /u 2) to i64)) + (3 * %n))

In addition to being much more complicated, it involves i65 arithmetic,
which is very inefficient when expanded into code.

//===---------------------------------------------------------------------===//