llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-19 20:34:38 +00:00

History

Eric Christopher 6618a241f7 Add a new wrapper node for a DILexicalBlock that encapsulates it and a

file. Since it should only be used when necessary propagate it through
the backend code generation and tweak testcases accordingly.

This helps with code like in clang's test/CodeGen/debug-info-line.c where
we have multiple #line directives within a single lexical block and want
to generate only a single block that contains each file change.

Part of rdar://10246360

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141729 91177308-0d34-0410-b5e6-96231b3b80d8

2011-10-11 22:59:11 +00:00

IPA

Reapply r138695. Fix PassManager stack depths.

2011-08-29 17:07:00 +00:00

AliasAnalysis.cpp

Enhance alias analysis for atomic instructions a bit. Upgrade a couple alias-analysis tests to the new atomic instructions.

2011-09-26 20:15:28 +00:00

AliasAnalysisCounter.cpp

Teach AliasAnalysisCounter about PartialAlias.

2010-12-10 19:53:05 +00:00

AliasAnalysisEvaluator.cpp

land David Blaikie's patch to de-constify Type, with a few tweaks.

2011-07-18 04:54:35 +00:00

AliasDebugger.cpp

Extend the AliasAnalysis::pointsToConstantMemory interface to allow it

2010-11-08 16:45:26 +00:00

AliasSetTracker.cpp

Atomic load/store support in LICM.

2011-08-15 20:52:09 +00:00

Analysis.cpp

C API functions must be able to see their extern "C" definitions, or it will be impossible to call them from C.

2011-08-19 01:36:54 +00:00

BasicAliasAnalysis.cpp

Remove the old atomic instrinsics. autoupgrade functionality is included with this patch.

2011-10-06 23:20:49 +00:00

BlockFrequencyInfo.cpp

Add more constantness in BlockFrequencyInfo.

2011-08-03 21:30:57 +00:00

BranchProbabilityInfo.cpp

Use canonical forms for the branch probability zero heutistic.

2011-09-04 23:53:04 +00:00

CaptureTracking.cpp

Don't include Operator.h from InstrTypes.h.

2011-04-11 09:35:34 +00:00

CFGPrinter.cpp

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

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

CMakeLists.txt

Rewrite the CMake build to use explicit dependencies between libraries,

2011-07-29 00:14:25 +00:00

ConstantFolding.cpp

Fixes following the CR by Chris and Duncan:

2011-08-29 19:58:36 +00:00

DbgInfoPrinter.cpp

Fix for DbgInfoPrinter.cpp:174:12: warning: ‘LineNo’ may be used uninitialized in this function.

2011-09-21 23:34:23 +00:00

DebugInfo.cpp

Add a new wrapper node for a DILexicalBlock that encapsulates it and a

2011-10-11 22:59:11 +00:00

DIBuilder.cpp

Add a new wrapper node for a DILexicalBlock that encapsulates it and a

2011-10-11 22:59:11 +00:00

DominanceFrontier.cpp

Move DominanceFrontier from VMCore to Analysis.

2011-01-18 06:06:27 +00:00

DomPrinter.cpp

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

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

InlineCost.cpp

Inlining and unrolling heuristics should be aware of free truncs.

2011-10-01 01:39:05 +00:00

InstCount.cpp

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

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

InstructionSimplify.cpp

InstSimplify: Don't try to replace an extractvalue/insertvalue pair with the original value if types don't match.

2011-09-05 18:16:19 +00:00

Interval.cpp

…

IntervalPartition.cpp

Now with fewer extraneous semicolons!

2010-10-07 22:25:06 +00:00

IVUsers.cpp

Teach IVUsers to stop at non-affine expressions unless they are both

2011-07-01 22:05:19 +00:00

LazyValueInfo.cpp

land David Blaikie's patch to de-constify Type, with a few tweaks.

2011-07-18 04:54:35 +00:00

LibCallAliasAnalysis.cpp

Now with fewer extraneous semicolons!

2010-10-07 22:25:06 +00:00

LibCallSemantics.cpp

…

Lint.cpp

land David Blaikie's patch to de-constify Type, with a few tweaks.

2011-07-18 04:54:35 +00:00

Loads.cpp

Add some comments here because the lack of a check for volatile/atomic here is a bit unusual.

2011-08-15 21:56:39 +00:00

LoopDependenceAnalysis.cpp

Misc analysis passes that need to be aware of atomic load/store.

2011-08-15 20:54:19 +00:00

LoopInfo.cpp

LoopInfo::updateUnloop fix, and verify Block->Loop maps.

2011-08-26 03:06:34 +00:00

LoopPass.cpp

Reapply r138695. Fix PassManager stack depths.

2011-08-29 17:07:00 +00:00

Makefile

…

MemDepPrinter.cpp

Misc analysis passes that need to be aware of atomic load/store.

2011-08-15 20:54:19 +00:00

MemoryBuiltins.cpp

land David Blaikie's patch to de-constify Type, with a few tweaks.

2011-07-18 04:54:35 +00:00

MemoryDependenceAnalysis.cpp

Misc analysis passes that need to be aware of atomic load/store.

2011-08-15 20:54:19 +00:00

ModuleDebugInfoPrinter.cpp

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

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

NoAliasAnalysis.cpp

Use the new addEscapingValue callback to update GlobalsModRef when GVN adds PHIs of GEPs. For the moment,

2011-01-03 23:51:43 +00:00

PathNumbering.cpp

Add this back in for now. There are still a few passes which create unwind instructions at the moment.

2011-08-03 01:07:57 +00:00

PathProfileInfo.cpp

Implementation of path profiling.

2011-01-29 01:09:53 +00:00

PathProfileVerifier.cpp

Fix a ton of comment typos found by codespell. Patch by

2011-04-15 05:18:47 +00:00

PHITransAddr.cpp

Shorten some expressions by using ArrayRef::slice().

2011-07-25 15:13:01 +00:00

PostDominators.cpp

remove postdom frontiers, because it is dead. Forward dom frontiers are

2011-04-05 21:57:17 +00:00

ProfileEstimatorPass.cpp

Fix a ton of comment typos found by codespell. Patch by

2011-04-15 05:18:47 +00:00

ProfileInfo.cpp

Fix a ton of comment typos found by codespell. Patch by

2011-04-15 05:18:47 +00:00

ProfileInfoLoader.cpp

Remove unused STL header includes.

2011-04-23 19:53:52 +00:00

ProfileInfoLoaderPass.cpp

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

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

ProfileVerifierPass.cpp

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

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

README.txt

…

RegionInfo.cpp

Region: Allow user control the printing style of the print function.

2011-04-04 07:19:18 +00:00

RegionPass.cpp

Reapply r138695. Fix PassManager stack depths.

2011-08-29 17:07:00 +00:00

RegionPrinter.cpp

RegionPrinter: Ignore back edges when layouting the graph

2011-02-27 04:11:07 +00:00

ScalarEvolution.cpp

Fixes PR11070 - assert in SCEV getConstantEvolvingPHIOperands.

2011-10-05 22:06:53 +00:00

ScalarEvolutionAliasAnalysis.cpp

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

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

ScalarEvolutionExpander.cpp

Move replaceCongruentIVs into SCEVExapander and bias toward "expanded"

2011-10-11 02:28:51 +00:00

ScalarEvolutionNormalization.cpp

Added SCEV::NoWrapFlags to manage unsigned, signed, and self wrap

2011-03-14 16:50:06 +00:00

SparsePropagation.cpp

…

Trace.cpp

…

TypeBasedAliasAnalysis.cpp

Fix a ton of comment typos found by codespell. Patch by

2011-04-15 05:18:47 +00:00

ValueTracking.cpp

Migrate LLVM and Clang to use the new makeArrayRef(...) functions where previously explicit non-default constructors were used.

2011-07-18 12:00:32 +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.

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

In formatValue in test/CodeGen/X86/lsr-delayed-fold.ll,

ScalarEvolution is forming this expression:

((trunc i64 (-1 * %arg5) to i32) + (trunc i64 %arg5 to i32) + (-1 * (trunc i64 undef to i32)))

This could be folded to

(-1 * (trunc i64 undef to i32))

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