Richard Smith 74413b926a Remove all allocation and divisions from GreatestCommonDivisor ...

Switch from Euclid's algorithm to Stein's algorithm for computing GCD. This
avoids the (expensive) APInt division operation in favour of bit operations.
Remove all memory allocation from within the GCD loop by tweaking our `lshr`
implementation so it can operate in-place.

Differential Revision: https://reviews.llvm.org/D31968


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300252 91177308-0d34-0410-b5e6-96231b3b80d8

2017-04-13 20:29:59 +00:00

..

APFloatTest.cpp

Fix 80-column violation in previous commit.

2017-03-31 20:35:02 +00:00

APIntTest.cpp

Remove all allocation and divisions from GreatestCommonDivisor

2017-04-13 20:29:59 +00:00

APSIntTest.cpp

ADTTests: merge #ifdef checks from r240436.

2015-06-24 17:05:04 +00:00

ArrayRefTest.cpp

Add some searching functions for ArrayRef<T>.

2016-11-22 23:22:19 +00:00

BitmaskEnumTest.cpp

[ADT] Add LLVM_MARK_AS_BITMASK_ENUM, used to enable bitwise operations on enums without static_cast.

2016-07-13 18:23:16 +00:00

BitVectorTest.cpp

Fix signed / unsigned comparison warnings.

2017-04-10 20:01:50 +00:00

BreadthFirstIteratorTest.cpp

[ADT] Add a generic breadth-first-search graph iterator.

2017-04-06 17:03:04 +00:00

BumpPtrListTest.cpp

ADT: Add AllocatorList, and use it for yaml::Token

2016-09-11 22:40:40 +00:00

CMakeLists.txt

[ADT] Add a generic breadth-first-search graph iterator.

2017-04-06 17:03:04 +00:00

DAGDeltaAlgorithmTest.cpp

Use 'override/final' instead of 'virtual' for overridden methods

2015-04-11 02:11:45 +00:00

DeltaAlgorithmTest.cpp

Use 'override/final' instead of 'virtual' for overridden methods

2015-04-11 02:11:45 +00:00

DenseMapTest.cpp

Add support for DenseMap/DenseSet count and find using const pointers

2017-03-10 00:25:26 +00:00

DenseSetTest.cpp

Add support for DenseMap/DenseSet count and find using const pointers

2017-03-10 00:25:26 +00:00

DepthFirstIteratorTest.cpp

Modify df_iterator to support post-order actions

2016-10-05 21:36:16 +00:00

FoldingSet.cpp

PR30711: Fix incorrect profiling of 'long long' in FoldingSet, then use it to

2016-10-16 17:49:09 +00:00

FunctionRefTest.cpp

Ensure function_refs are copyable even from non-const references

2014-11-12 02:06:08 +00:00

HashingTest.cpp

Remove no-op dtor so that use of the implicit copy ctor/assignment operator are not deprecated.

2015-03-03 19:52:59 +00:00

IListBaseTest.cpp

ADT: Add sentinel tracking and custom tags to ilists

2016-09-11 16:20:53 +00:00

IListIteratorTest.cpp

Fix some missing negations in the traits checking from r294349

2017-02-07 21:31:03 +00:00

IListNodeBaseTest.cpp

ADT: Add sentinel tracking and custom tags to ilists

2016-09-11 16:20:53 +00:00

IListNodeTest.cpp

ADT: Add sentinel tracking and custom tags to ilists

2016-09-11 16:20:53 +00:00

IListSentinelTest.cpp

Turn LLVM_ENABLE_ABI_BREAKING_CHECKS into a 0/1 definition like

2016-09-30 19:52:27 +00:00

IListTest.cpp

ADT: Never allocate nodes in iplist<> and ilist<>

2016-09-11 23:43:43 +00:00

ImmutableMapTest.cpp

[C++11] Use 'nullptr'.

2014-06-08 22:29:17 +00:00

ImmutableSetTest.cpp

Fix warnings in ImmutableSetTest and SequenceTest.

2016-07-17 18:10:30 +00:00

IntEqClassesTest.cpp

Add ADT/IntEqClasses.h as a light-weight implementation of EquivalenceClasses.h.

2010-12-21 00:04:46 +00:00

IntervalMapTest.cpp

[ADT] IntervalMap: fix setStart and setStop

2016-11-03 19:14:46 +00:00

IntrusiveRefCntPtrTest.cpp

[ADT] Attempt to fix GCC warning in IntrusiveRefCntPtrTest.

2017-01-04 22:49:55 +00:00

IteratorTest.cpp

ADT: Add range helpers for pointer_ and pointee_iterator

2017-03-27 12:56:12 +00:00

MakeUniqueTest.cpp

[C++11] Add llvm::make_unique, according to N3656.

2014-03-09 11:20:17 +00:00

MapVectorTest.cpp

[ADT] Let MapVector handle non-copyable values.

2016-10-10 16:25:59 +00:00

OptionalTest.cpp

[ADT] Add relation operators for Optional

2016-08-11 20:10:15 +00:00

PackedVectorTest.cpp

Simplify PackedVector by removing user-defined special members that aren't any different than the defaults

2015-08-12 23:26:12 +00:00

PointerEmbeddedIntTest.cpp

[ADT] Fix PointerEmbeddedInt when the underlying type is uintptr_t.

2016-02-18 21:00:08 +00:00

PointerIntPairTest.cpp

Fix PointerIntPair so that it can use an enum class as its integer template argument.

2016-01-13 05:59:13 +00:00

PointerSumTypeTest.cpp

[ADT] Add a sum type abstraction for pointer-like types.

2016-01-10 08:48:23 +00:00

PointerUnionTest.cpp

[C++11] Use 'nullptr'.

2014-06-08 22:29:17 +00:00

PostOrderIteratorTest.cpp

[ADT] Change PostOrderIterator to use NodeRef. NFC.

2016-08-15 21:52:54 +00:00

PriorityWorklistTest.cpp

[ADT] Speculative attempt to fix build bot issues with r290952.

2017-01-04 11:40:18 +00:00

RangeAdapterTest.cpp

Reapply "ADT: Remove references in has_rbegin for reverse()"

2016-08-18 17:15:25 +00:00

ReverseIterationTest.cpp

[ADT] Fix for compilation error when operator++(int) (post-increment function) of SmallPtrSetIterator is used.

2016-12-30 12:34:36 +00:00

SCCIteratorTest.cpp

[ADT] Actually mutate the iterator VisitStack.back().second, not its copy.

2016-08-22 21:59:26 +00:00

ScopeExitTest.cpp

[ADT] Add make_scope_exit().

2016-08-10 17:52:09 +00:00

SequenceTest.cpp

Fix warnings in ImmutableSetTest and SequenceTest.

2016-07-17 18:10:30 +00:00

SetVectorTest.cpp

[SetVector] Add erase() method

2016-03-25 19:28:08 +00:00

SimpleIListTest.cpp

[ilist_node] Add a getReverseIterator() method and a unittest for it.

2016-11-02 00:59:58 +00:00

SmallPtrSetTest.cpp

ADT: Fix SmallPtrSet iterators in reverse mode

2017-03-07 21:56:32 +00:00

SmallStringTest.cpp

Revert "Fix Clang-tidy modernize-deprecated-headers warnings in remaining files; other minor fixes."

2016-04-05 20:45:04 +00:00

SmallVectorTest.cpp

Revert "Fix Clang-tidy modernize-deprecated-headers warnings in remaining files; other minor fixes."

2016-04-05 20:45:04 +00:00

SparseBitVectorTest.cpp

[ADT] Add SparseBitVector::find_last().

2017-01-17 23:09:21 +00:00

SparseMultiSetTest.cpp

ADT/SparseMultiSetTest.cpp: Try to appease cygwin-clang on stage2, take two. [-Wsign-compare]

2013-01-22 10:39:31 +00:00

SparseSetTest.cpp

[ADT] Add a pop_back_val method to the SparseSet container.

2016-03-14 18:10:41 +00:00

STLExtrasTest.cpp

Fix sign compare warning in unit test by using an explicit unsigned literal suffix

2017-03-13 21:46:12 +00:00

StringExtrasTest.cpp

Add llvm::join_items to StringExtras.

2016-09-27 16:37:30 +00:00

StringMapTest.cpp

Spelling mistakes in comments. NFCI.

2017-03-31 10:59:37 +00:00

StringRefTest.cpp

[ADT] Add a version of llvm::join() that takes a range.

2017-03-21 19:35:05 +00:00

StringSwitchTest.cpp

[Support] Add case-insensitive versions of StringSwitch members.

2016-10-04 19:33:13 +00:00

TestGraph.h

s/static inline/static/ for headers I have changed in r279475. NFC.

2016-08-31 16:48:13 +00:00

TinyPtrVectorTest.cpp

Remove uses of deprecated std::random_shuffle in the LLVM code base. Reviewed as https://reviews.llvm.org/D29780.

2017-02-16 14:37:03 +00:00

TripleTest.cpp

Set default CPU for OpenBSD/arm to Cortex-A8

2017-02-28 17:28:35 +00:00

TwineTest.cpp

Fix compilation.

2016-12-17 01:31:46 +00:00

VariadicFunctionTest.cpp

As Doug pointed out (and I really should know), it is perfectly easy to

2011-12-17 10:20:15 +00:00