llvm-6502

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Bill Wendling b525888b1f Merging r197216:

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r197216 | chandlerc | 2013-12-13 00:00:01 -0800 (Fri, 13 Dec 2013) | 9 lines

[inliner] Fix PR18206 by preventing inlining functions that call setjmp
through an invoke instruction.

The original patch for this was written by Mark Seaborn, but I've
reworked his test case into the existing returns_twice test case and
implemented the fix by the prior refactoring to actually run the cost
analysis over invoke instructions, and then here fixing our detection of
the returns_twice attribute to work for both calls and invokes. We never
noticed because we never saw an invoke. =[
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@197352 91177308-0d34-0410-b5e6-96231b3b80d8

2013-12-15 20:55:09 +00:00

IPA

Merging r197216:

2013-12-15 20:55:09 +00:00

AliasAnalysis.cpp

Reimplement isPotentiallyReachable to make nocapture deduction much stronger.

2013-07-27 01:24:00 +00:00

AliasAnalysisCounter.cpp

Use the new script to sort the includes of every file under lib.

2012-12-03 16:50:05 +00:00

AliasAnalysisEvaluator.cpp

Support in AAEvaluator to print alias queries of loads/stores with TBAA tags.

2013-03-22 22:34:41 +00:00

AliasDebugger.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

AliasSetTracker.cpp

In AliasSetTracker, do not change the alias set to "mod/ref" when adding

2013-09-12 20:15:50 +00:00

Analysis.cpp

delinearization of arrays

2013-11-12 22:47:20 +00:00

BasicAliasAnalysis.cpp

Use correct size for address space in BasicAA.

2013-11-16 00:36:43 +00:00

BlockFrequencyInfo.cpp

Added BlockFrequencyInfo::view for displaying the block frequency propagation graph via graphviz.

2013-11-14 02:27:46 +00:00

BranchProbabilityInfo.cpp

Consider (x == -1) unlikely in BranchProbabilityInfo

2013-11-01 10:58:22 +00:00

CaptureTracking.cpp

CaptureTracking: Plug a loophole in the "too many uses" heuristic.

2013-10-03 13:24:02 +00:00

CFG.cpp

Add some constantness.

2013-08-20 23:04:15 +00:00

CFGPrinter.cpp

Use the new script to sort the includes of every file under lib.

2012-12-03 16:50:05 +00:00

CMakeLists.txt

delinearization of arrays

2013-11-12 22:47:20 +00:00

CodeMetrics.cpp

Begin fleshing out an interface in TTI for modelling the costs of

2013-01-22 11:26:02 +00:00

ConstantFolding.cpp

Add addrspacecast instruction.

2013-11-15 01:34:59 +00:00

CostModel.cpp

Move variable into assert to avoid unused variable warning.

2013-09-17 21:13:57 +00:00

Delinearization.cpp

add more comments around the delinearization of arrays

2013-11-13 22:37:58 +00:00

DependenceAnalysis.cpp

add more comments around the delinearization of arrays

2013-11-13 22:37:58 +00:00

DominanceFrontier.cpp

Use the new script to sort the includes of every file under lib.

2012-12-03 16:50:05 +00:00

DomPrinter.cpp

…

InstCount.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

InstructionSimplify.cpp

Teach MemoryBuiltins and InstructionSimplify that operator new never returns NULL.

2013-09-24 16:37:51 +00:00

Interval.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

IntervalPartition.cpp

…

IVUsers.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

LazyValueInfo.cpp

Use SmallVectorImpl::iterator/const_iterator instead of SmallVector to avoid specifying the vector size.

2013-07-04 01:31:24 +00:00

LibCallAliasAnalysis.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

LibCallSemantics.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

Lint.cpp

Use size function instead of manually calculating it.

2013-11-10 03:18:50 +00:00

LLVMBuild.txt

…

Loads.cpp

Change GetPointerBaseWithConstantOffset's DataLayout argument from a

2013-01-31 02:00:45 +00:00

LoopInfo.cpp

Simplify code. No functionality change.

2013-11-13 20:18:38 +00:00

LoopPass.cpp

Comment: try to clarify loop iteration order.

2013-07-20 23:10:31 +00:00

Makefile

…

MemDepPrinter.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

MemoryBuiltins.cpp

fix PR17635: false positive with packed structures

2013-10-24 09:17:24 +00:00

MemoryDependenceAnalysis.cpp

Fixing a heisenbug where the memory dependence analysis behaves differently

2013-11-14 01:10:52 +00:00

ModuleDebugInfoPrinter.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

NoAliasAnalysis.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

PHITransAddr.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

PostDominators.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

PtrUseVisitor.cpp

Hoist the GEP constant address offset computation to a common home on

2012-12-11 10:29:10 +00:00

README.txt

…

RegionInfo.cpp

Reorder headers according to lint.

2013-08-21 21:14:19 +00:00

RegionPass.cpp

…

RegionPrinter.cpp

Use the new script to sort the includes of every file under lib.

2012-12-03 16:50:05 +00:00

ScalarEvolution.cpp

Annotate APInt methods where it's not clear whether they are in place with warn_unused_result.

2013-11-16 16:25:41 +00:00

ScalarEvolutionAliasAnalysis.cpp

Use the new script to sort the includes of every file under lib.

2012-12-03 16:50:05 +00:00

ScalarEvolutionExpander.cpp

Fix SCEVExpander: don't try to expand quadratic recurrences outside a loop.

2013-10-25 21:35:56 +00:00

ScalarEvolutionNormalization.cpp

Fix LSR: don't normalize quadratic recurrences.

2013-10-25 21:35:52 +00:00

SparsePropagation.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

TargetTransformInfo.cpp

Costmodel: Add support for horizontal vector reductions

2013-09-17 18:06:50 +00:00

Trace.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

TypeBasedAliasAnalysis.cpp

TBAA: fix PR17620.

2013-10-22 01:40:25 +00:00

ValueTracking.cpp

Remove x86_sse42_crc32_64_8 intrinsic. It has no functional difference from x86_sse42_crc32_32_8 and was not mapped to a clang builtin. I'm not even sure why this form of the instruction is even called out explicitly in the docs. Also add AutoUpgrade support to convert it into the other intrinsic with appropriate trunc and zext.

2013-10-15 05:20:47 +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))

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