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Zaara Syeda e49dd688ba Re-commit : [PowerPC] Add handling for ColdCC calling convention and a pass to mark

candidates with coldcc attribute.

This recommits r322721 reverted due to sanitizer memory leak build bot failures.

Original commit message:
This patch adds support for the coldcc calling convention for Power.
This changes the set of non-volatile registers. It includes a pass to stress
test the implementation by marking all static directly called functions with
the coldcc attribute through the option -enable-coldcc-stress-test. It also
includes an option, -ppc-enable-coldcc, to add the coldcc attribute to
functions which are cold at all call sites based on BlockFrequencyInfo when
the containing function does not call any non cold functions.

Differential Revision: https://reviews.llvm.org/D38413

llvm-svn: 323778

2018-01-30 16:17:22 +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

[InlineCost] Mark functions accessing varargs as not viable.

2018-01-28 19:11:49 +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) / Y --> X for relaxed floating-point ops

2018-01-30 00:18:37 +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

Fix typos of occurred and occurrence

2018-01-24 10:33:39 +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

Re-land "[ThinLTO] Add call edges' relative block frequency to per-module summary."

2018-01-25 19:27:17 +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

[SyntheticCounts] Rewrite the code using only graph traits.

2018-01-25 22:02:29 +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

Re-commit : [PowerPC] Add handling for ColdCC calling convention and a pass to mark

2018-01-30 16:17:22 +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] add recursion depth param to matchSelectPattern

2018-01-24 15:20:37 +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))

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