forked from OSchip/llvm-project
704a395693
Motivation: APInt not supporting zero bit values leads to a lot of special cases in various bits of code, particularly when using APInt as a bit vector (where you want to start with zero bits and then concat on more. This is particularly challenging in the CIRCT project, where the absence of zero-bit ConstantOp forces duplication of ops and makes instcombine-like logic far more complicated. Approach: zero bit integers are weird. There are two reasonable approaches: either make it illegal to do general arithmetic on them (e.g. sign extends), or treat them as as implicitly having a zero value. This patch takes the conservative approach, which enables their use in bitvector applications. Differential Revision: https://reviews.llvm.org/D109555 |
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| .. | ||
| APFixedPointTest.cpp | ||
| APFloatTest.cpp | ||
| APIntTest.cpp | ||
| APSIntTest.cpp | ||
| AnyTest.cpp | ||
| ArrayRefTest.cpp | ||
| BitFieldsTest.cpp | ||
| BitVectorTest.cpp | ||
| BitmaskEnumTest.cpp | ||
| BreadthFirstIteratorTest.cpp | ||
| BumpPtrListTest.cpp | ||
| CMakeLists.txt | ||
| CoalescingBitVectorTest.cpp | ||
| DAGDeltaAlgorithmTest.cpp | ||
| DeltaAlgorithmTest.cpp | ||
| DenseMapTest.cpp | ||
| DenseSetTest.cpp | ||
| DepthFirstIteratorTest.cpp | ||
| DirectedGraphTest.cpp | ||
| EnumeratedArrayTest.cpp | ||
| EquivalenceClassesTest.cpp | ||
| FallibleIteratorTest.cpp | ||
| FloatingPointMode.cpp | ||
| FoldingSet.cpp | ||
| FunctionExtrasTest.cpp | ||
| FunctionRefTest.cpp | ||
| HashingTest.cpp | ||
| IListBaseTest.cpp | ||
| IListIteratorTest.cpp | ||
| IListNodeBaseTest.cpp | ||
| IListNodeTest.cpp | ||
| IListSentinelTest.cpp | ||
| IListTest.cpp | ||
| ImmutableListTest.cpp | ||
| ImmutableMapTest.cpp | ||
| ImmutableSetTest.cpp | ||
| IntEqClassesTest.cpp | ||
| IntervalMapTest.cpp | ||
| IntrusiveRefCntPtrTest.cpp | ||
| IteratorTest.cpp | ||
| MapVectorTest.cpp | ||
| MappedIteratorTest.cpp | ||
| OptionalTest.cpp | ||
| PackedVectorTest.cpp | ||
| PointerEmbeddedIntTest.cpp | ||
| PointerIntPairTest.cpp | ||
| PointerSumTypeTest.cpp | ||
| PointerUnionTest.cpp | ||
| PostOrderIteratorTest.cpp | ||
| PriorityWorklistTest.cpp | ||
| RangeAdapterTest.cpp | ||
| SCCIteratorTest.cpp | ||
| STLExtrasTest.cpp | ||
| STLForwardCompatTest.cpp | ||
| ScopeExitTest.cpp | ||
| SequenceTest.cpp | ||
| SetVectorTest.cpp | ||
| SimpleIListTest.cpp | ||
| SmallPtrSetTest.cpp | ||
| SmallSetTest.cpp | ||
| SmallStringTest.cpp | ||
| SmallVectorTest.cpp | ||
| SparseBitVectorTest.cpp | ||
| SparseMultiSetTest.cpp | ||
| SparseSetTest.cpp | ||
| StatisticTest.cpp | ||
| StringExtrasTest.cpp | ||
| StringMapTest.cpp | ||
| StringRefTest.cpp | ||
| StringSetTest.cpp | ||
| StringSwitchTest.cpp | ||
| TestGraph.h | ||
| TinyPtrVectorTest.cpp | ||
| TripleTest.cpp | ||
| TwineTest.cpp | ||
| TypeSwitchTest.cpp | ||
| TypeTraitsTest.cpp | ||
| WaymarkingTest.cpp | ||