Chandler Carruth 8bbd7bacc1 [ADT] Add an abstraction for embedding an integer within a pointer-like ... type. This makes it easy and safe to use a set of flags as one elmenet of a tagged union with pointers. There is quite a bit of code that has historically done this by casting arbitrary integers to "pointers" and assuming that this was safe and reliable. It is neither, and has started to rear its head by triggering safety asserts in various abstractions like PointerLikeTypeTraits when the integers chosen are invariably poor choices for *some* platform and *some* situation. Not to mention the (hopefully unlikely) prospect of one of these integers actually getting allocated! With this, it will be straightforward to build type safe abstractions like this without being error prone. The abstraction itself is also remarkably simple thanks to the implicit conversion. This use case and pattern was also independently created by the folks working on Swift, and they're going to incrementally add any missing functionality they find. Differential Revision: http://reviews.llvm.org/D15844 llvm-svn: 257284		2016-01-10 09:40:13 +00:00
..
APFloatTest.cpp	Add isInteger() to APFloat.	2015-11-16 21:52:48 +00:00
APIntTest.cpp
APSIntTest.cpp
ArrayRefTest.cpp	Add makeArrayRef() overload for ArrayRef input (no-op/identity) NFC	2015-09-10 00:05:04 +00:00
BitVectorTest.cpp	Simplify SmallBitVector::applyMask by consolidating common code for 32- and 64-bit builds	2015-09-18 15:08:24 +00:00
CMakeLists.txt	[ADT] Add an abstraction for embedding an integer within a pointer-like	2016-01-10 09:40:13 +00:00
DAGDeltaAlgorithmTest.cpp
DeltaAlgorithmTest.cpp
DenseMapTest.cpp	Add a unittest for SmallDenseMap that tests assigning a SmallDenseMap when it is not small.	2015-10-31 05:23:53 +00:00
DenseSetTest.cpp
FoldingSet.cpp
FunctionRefTest.cpp
HashingTest.cpp
ilistTest.cpp	ADT: Avoid relying on UB in ilist_node::getNextNode()	2015-11-11 02:26:42 +00:00
ImmutableMapTest.cpp
ImmutableSetTest.cpp
IntEqClassesTest.cpp
IntervalMapTest.cpp
IntrusiveRefCntPtrTest.cpp
Makefile
MakeUniqueTest.cpp
MapVectorTest.cpp
OptionalTest.cpp
PackedVectorTest.cpp
PointerEmbeddedIntTest.cpp	[ADT] Add an abstraction for embedding an integer within a pointer-like	2016-01-10 09:40:13 +00:00
PointerIntPairTest.cpp	[ADT] Use a nonce type with at least 4 byte alignment.	2015-12-29 00:03:24 +00:00
PointerSumTypeTest.cpp	[ADT] Add a sum type abstraction for pointer-like types.	2016-01-10 08:48:23 +00:00
PointerUnionTest.cpp
PostOrderIteratorTest.cpp
RangeAdapterTest.cpp
SCCIteratorTest.cpp
SmallPtrSetTest.cpp
SmallStringTest.cpp
SmallVectorTest.cpp
SparseBitVectorTest.cpp
SparseMultiSetTest.cpp
SparseSetTest.cpp
StringMapTest.cpp
StringRefTest.cpp	[ADT] Fix a confusing interface spec and some annoying peculiarities	2015-09-10 07:51:37 +00:00
TinyPtrVectorTest.cpp
TripleTest.cpp	Handle ARMv6-J as an alias, instead of fake architecture	2015-11-20 16:46:09 +00:00
TwineTest.cpp
VariadicFunctionTest.cpp