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MinSeong Kim 3c68a97987 [Analysis] Disable exp/exp2/pow finite lib calls on Android with -ffast-math.

Summary:
Since r322087, glibc's finite lib calls are generated when possible.
However, glibc is not supported on Android. Therefore this change
enables llvm to finely distinguish between linux and Android for
unsupported library calls. The change also include some regression
tests.

Reviewers: srhines, pirama

Reviewed By: srhines

Subscribers: kongyi, chh, javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D42288

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@323187 91177308-0d34-0410-b5e6-96231b3b80d8

2018-01-23 11:11:36 +00:00

AliasAnalysis.cpp

[ModRefInfo] Return NoModRef for Must and NoModRef.

2018-01-19 10:26:40 +00:00

AliasAnalysisEvaluator.cpp

[ModRefInfo] Add must alias info to ModRefInfo.

2017-12-21 21:41:53 +00:00

AliasAnalysisSummary.cpp

Update a comment.

2016-08-25 01:29:55 +00:00

AliasAnalysisSummary.h

Make some LLVM_CONSTEXPR variables const. NFC.

2016-08-25 01:05:08 +00:00

AliasSetTracker.cpp

Modify ModRefInfo values using static inline method abstractions [NFC].

2017-12-05 20:12:23 +00:00

Analysis.cpp

MemorySSA: Move to Analysis, from Transforms/Utils. It's used as

2017-04-11 20:06:36 +00:00

AssumptionCache.cpp

[Analysis, Transforms] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

2017-09-01 21:37:29 +00:00

BasicAliasAnalysis.cpp

[ModRefInfo] Return NoModRef for Must and NoModRef.

2018-01-19 10:26:40 +00:00

BlockFrequencyInfo.cpp

Revert r320104: infinite loop profiling bug fix

2017-12-08 19:38:07 +00:00

BlockFrequencyInfoImpl.cpp

Add a ProfileCount class to represent entry counts.

2018-01-17 22:24:23 +00:00

BranchProbabilityInfo.cpp

[BranchProbabilityInfo] Handle irreducible loops.

2017-11-01 15:16:50 +00:00

CallGraph.cpp

Reverting r315590; it did not include changes for llvm-tblgen, which is causing link errors for several people.

2017-10-15 14:32:27 +00:00

CallGraphSCCPass.cpp

[Analysis] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes. Also affected in files (NFC).

2017-08-31 21:56:16 +00:00

CallPrinter.cpp

Sort the remaining #include lines in include/... and lib/....

2017-06-06 11:49:48 +00:00

CaptureTracking.cpp

fix trivial typos; NFC

2017-07-09 05:54:44 +00:00

CFG.cpp

Avoid overly large SmallPtrSet/SmallSet

2016-01-30 01:24:31 +00:00

CFGPrinter.cpp

[CFGVPrinter] Fix -dot-cfg-only

2017-12-19 15:20:18 +00:00

CFLAndersAliasAnalysis.cpp

[Analysis] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-08-11 21:30:02 +00:00

CFLGraph.h

[Analysis] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-08-11 21:30:02 +00:00

CFLSteensAliasAnalysis.cpp

[Analysis] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-08-11 21:30:02 +00:00

CGSCCPassManager.cpp

Use a BumpPtrAllocator for Loop objects

2017-09-28 02:45:42 +00:00

CMakeLists.txt

Add a pass to generate synthetic function entry counts.

2018-01-09 19:39:35 +00:00

CmpInstAnalysis.cpp

[InstCombine][InstSimplify] Teach decomposeBitTestICmp to look through truncate instructions

2017-09-01 21:27:34 +00:00

CodeMetrics.cpp

Remove redundant includes from lib/Analysis.

2017-12-13 21:30:41 +00:00

ConstantFolding.cpp

Revert "Fix typo [NFC]"

2017-10-01 00:09:53 +00:00

CostModel.cpp

Remove redundant includes from lib/Analysis.

2017-12-13 21:30:41 +00:00

Delinearization.cpp

[NFC] Header cleanup

2016-04-18 09:17:29 +00:00

DemandedBits.cpp

Avoid int to string conversion in Twine or raw_ostream contexts.

2017-12-28 16:58:54 +00:00

DependenceAnalysis.cpp

Reverting r315590; it did not include changes for llvm-tblgen, which is causing link errors for several people.

2017-10-15 14:32:27 +00:00

DivergenceAnalysis.cpp

Remove redundant includes from lib/Analysis.

2017-12-13 21:30:41 +00:00

DominanceFrontier.cpp

Reverting r315590; it did not include changes for llvm-tblgen, which is causing link errors for several people.

2017-10-15 14:32:27 +00:00

DomPrinter.cpp

[DomPrinter] Add a way to programmatically dump a dot representation.

2017-04-24 17:48:44 +00:00

EHPersonalities.cpp

[EH] Recognize __(gxx|gcc)_personality_seh0 as the GNU EH personalities

2017-05-31 22:35:52 +00:00

GlobalsModRef.cpp

[GlobalsAA] Don't let dbg intrinsics affect analysis result

2018-01-15 07:05:51 +00:00

IndirectCallPromotionAnalysis.cpp

Remove redundant includes from lib/Analysis.

2017-12-13 21:30:41 +00:00

InlineCost.cpp

Avoid inlining if there is byval arguments with non-alloca address space

2018-01-10 13:01:18 +00:00

InstCount.cpp

[Analysis] RemoveTotalMemInst counting in InstCount to avoid reading back other Statistic variables

2017-07-18 02:41:12 +00:00

InstructionSimplify.cpp

[InstSimplify] (X << Y) % X -> 0

2018-01-23 09:27:47 +00:00

Interval.cpp

[Analysis] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-07-24 23:16:33 +00:00

IntervalPartition.cpp

[Analysis] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

2017-07-24 23:16:33 +00:00

IteratedDominanceFrontier.cpp

[Dominators] Make IsPostDominator a template parameter

2017-07-14 18:26:09 +00:00

IVUsers.cpp

Reverting r315590; it did not include changes for llvm-tblgen, which is causing link errors for several people.

2017-10-15 14:32:27 +00:00

LazyBlockFrequencyInfo.cpp

[LazyBFI] Fix typos

2017-02-14 17:21:12 +00:00

LazyBranchProbabilityInfo.cpp

[BPI] Don't assume that strcmp returning >0 is more likely than <0

2017-06-08 09:44:40 +00:00

LazyCallGraph.cpp

Reverting r315590; it did not include changes for llvm-tblgen, which is causing link errors for several people.

2017-10-15 14:32:27 +00:00

LazyValueInfo.cpp

[NFC] fix trivial typos in comments

2018-01-17 12:29:38 +00:00

Lint.cpp

[Lint] Don't warn about noalias argument aliasing if other argument is byval

2017-12-27 08:48:33 +00:00

LLVMBuild.txt

Update libdeps to add BinaryFormat, introduced in r304864.

2017-06-07 04:48:49 +00:00

Loads.cpp

Modify ModRefInfo values using static inline method abstractions [NFC].

2017-12-05 20:12:23 +00:00

LoopAccessAnalysis.cpp

Revert r320548:[SLP] Vectorize jumbled memory loads

2017-12-20 15:26:59 +00:00

LoopAnalysisManager.cpp

Add MemorySSA as loop dependency, disabled by default [NFC].

2017-11-21 15:45:46 +00:00

LoopInfo.cpp

IR printing improvement for loop passes - handle -print-module-scope

2017-12-01 18:33:58 +00:00

LoopPass.cpp

[PM/Unswitch] Teach SimpleLoopUnswitch to do non-trivial unswitching,

2017-11-17 19:58:36 +00:00

LoopUnrollAnalyzer.cpp

Remove redundant includes from lib/Analysis.

2017-12-13 21:30:41 +00:00

MemDepPrinter.cpp

Sort the remaining #include lines in include/... and lib/....

2017-06-06 11:49:48 +00:00

MemDerefPrinter.cpp

Remove redundant includes from lib/Analysis.

2017-12-13 21:30:41 +00:00

MemoryBuiltins.cpp

[Analysis] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

2017-08-16 22:07:40 +00:00

MemoryDependenceAnalysis.cpp

[MDA] Use common code instead of reimplementing same. [NFC]

2018-01-17 19:57:19 +00:00

MemoryLocation.cpp

[Analysis] Add LibFunc_ prefix to enums in TargetLibraryInfo. (NFC)

2017-01-23 23:16:46 +00:00

MemorySSA.cpp

[MemorySSA] Allow reordering of loads that alias in the presence of volatile loads.

2017-12-22 19:54:03 +00:00

MemorySSAUpdater.cpp

Remove redundant includes from lib/Analysis.

2017-12-13 21:30:41 +00:00

ModuleDebugInfoPrinter.cpp

Remove redundant includes from lib/Analysis.

2017-12-13 21:30:41 +00:00

ModuleSummaryAnalysis.cpp

[ThinLTO] Re-commit of dot dumper after test fix

2018-01-22 13:35:40 +00:00

ObjCARCAliasAnalysis.cpp

[ModRefInfo] Make enum ModRefInfo an enum class [NFC].

2017-12-07 22:41:34 +00:00

ObjCARCAnalysisUtils.cpp

Mark all library options as hidden.

2017-12-01 00:53:10 +00:00

ObjCARCInstKind.cpp

Sort the remaining #include lines in include/... and lib/....

2017-06-06 11:49:48 +00:00

OptimizationRemarkEmitter.cpp

Remove redundant includes from lib/Analysis.

2017-12-13 21:30:41 +00:00

OrderedBasicBlock.cpp

[OrderedBasicBlock] Return false for comesBefore(A, A)

2017-06-02 13:10:31 +00:00

PHITransAddr.cpp

Reverting r315590; it did not include changes for llvm-tblgen, which is causing link errors for several people.

2017-10-15 14:32:27 +00:00

PostDominators.cpp

[Dominators] Remove redundant explicit template instantiation.

2017-08-26 21:08:51 +00:00

ProfileSummaryInfo.cpp

Add a ProfileCount class to represent entry counts.

2018-01-17 22:24:23 +00:00

PtrUseVisitor.cpp

[Analysis] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

2017-08-18 23:51:26 +00:00

README.txt

…

RegionInfo.cpp

Reverting r315590; it did not include changes for llvm-tblgen, which is causing link errors for several people.

2017-10-15 14:32:27 +00:00

RegionPass.cpp

Remove redundant includes from lib/Analysis.

2017-12-13 21:30:41 +00:00

RegionPrinter.cpp

Sort the remaining #include lines in include/... and lib/....

2017-06-06 11:49:48 +00:00

ScalarEvolution.cpp

Revert [SCEV] Fix isLoopEntryGuardedByCond usage

2018-01-22 07:47:02 +00:00

ScalarEvolutionAliasAnalysis.cpp

[PM] Change the static object whose address is used to uniquely identify

2016-11-23 17:53:26 +00:00

ScalarEvolutionExpander.cpp

Use phi ranges to simplify code. No functionality change intended.

2017-12-30 15:27:33 +00:00

ScalarEvolutionNormalization.cpp

Sort the remaining #include lines in include/... and lib/....

2017-06-06 11:49:48 +00:00

ScopedNoAliasAA.cpp

[ModRefInfo] Make enum ModRefInfo an enum class [NFC].

2017-12-07 22:41:34 +00:00

StratifiedSets.h

Do a sweep over move ctors and remove those that are identical to the default.

2016-10-20 12:20:28 +00:00

SyntheticCountsUtils.cpp

Add a pass to generate synthetic function entry counts.

2018-01-09 19:39:35 +00:00

TargetLibraryInfo.cpp

[Analysis] Disable exp/exp2/pow finite lib calls on Android with -ffast-math.

2018-01-23 11:11:36 +00:00

TargetTransformInfo.cpp

Revert [PowerPC] This reverts commit rL322721

2018-01-17 20:00:15 +00:00

Trace.cpp

Reverting r315590; it did not include changes for llvm-tblgen, which is causing link errors for several people.

2017-10-15 14:32:27 +00:00

TypeBasedAliasAnalysis.cpp

[Analysis] Generate more precise TBAA tags when one access encloses the other

2017-12-18 20:05:20 +00:00

TypeMetadataUtils.cpp

Analysis: Add appropriate const qualification to functions in TypeMetadataUtils.cpp. NFC.

2017-01-27 22:55:30 +00:00

ValueLattice.cpp

[LVI] Move LVILatticeVal class to separate header file (NFC).

2017-09-28 11:09:22 +00:00

ValueLatticeUtils.cpp

[IPSCCP] Move common functions to ValueLatticeUtils (NFC)

2017-10-13 17:53:44 +00:00

ValueTracking.cpp

[ValueTracking] recognize min/max-of-min/max with notted ops (PR35875)

2018-01-11 15:13:47 +00:00

VectorUtils.cpp

Add an @llvm.sideeffect intrinsic

2017-11-08 21:59:51 +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))

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