Lang Hames a46dd583d6 [APFloat][ADT] Fix sign handling logic for FMA results that truncate to zero. ...

This patch adds a check for underflow when truncating results back to lower
precision at the end of an FMA. The additional sign handling logic in
APFloat::fusedMultiplyAdd should only be performed when the result of the
addition step of the FMA (in full precision) is exactly zero, not when the
result underflows to zero.

Unit tests for this case and related signed zero FMA results are included.

Fixes <rdar://problem/18925551>.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225123 91177308-0d34-0410-b5e6-96231b3b80d8

2015-01-04 01:20:55 +00:00

..

APFloatTest.cpp

[APFloat][ADT] Fix sign handling logic for FMA results that truncate to zero.

2015-01-04 01:20:55 +00:00

APIntTest.cpp

Simplify creation of a bunch of ArrayRefs by using None, makeArrayRef or just letting them be implicitly created.

2014-08-27 05:25:25 +00:00

APSIntTest.cpp

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ArrayRefTest.cpp

Revert r225053: Add an ArrayRef upcasting constructor from ArrayRef<U*> -> ArrayRef<T*> where T is a base of U.

2015-01-01 13:01:25 +00:00

BitVectorTest.cpp

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CMakeLists.txt

Compilation test for PostOrderIterator.

2014-11-20 19:33:33 +00:00

DAGDeltaAlgorithmTest.cpp

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DeltaAlgorithmTest.cpp

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DenseMapTest.cpp

Fix SmallDenseMap assignment operator.

2014-08-04 22:18:25 +00:00

DenseSetTest.cpp

[ADT] Add a 'find_as' operation to DenseSet.

2014-10-19 19:36:33 +00:00

FoldingSet.cpp

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FunctionRefTest.cpp

Ensure function_refs are copyable even from non-const references

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

HashingTest.cpp

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ilistTest.cpp

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ImmutableMapTest.cpp

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ImmutableSetTest.cpp

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IntEqClassesTest.cpp

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IntervalMapTest.cpp

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IntrusiveRefCntPtrTest.cpp

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Makefile

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MakeUniqueTest.cpp

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MapVectorTest.cpp

Add a SmallMapVector class that is a MapVector with a Map of SmallDenseMap and a Vector of SmallVector.

2014-12-31 23:33:21 +00:00

OptionalTest.cpp

Update test name to match changes made in r218783

2014-10-01 21:19:39 +00:00

PackedVectorTest.cpp

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PointerIntPairTest.cpp

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PointerUnionTest.cpp

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PostOrderIteratorTest.cpp

Compilation test for PostOrderIterator.

2014-11-20 19:33:33 +00:00

SCCIteratorTest.cpp

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SmallPtrSetTest.cpp

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SmallStringTest.cpp

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SmallVectorTest.cpp

Silencing several "multiple copy constructors" warnings from MSVC; NFC.

2014-12-03 14:44:16 +00:00

SparseBitVectorTest.cpp

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SparseMultiSetTest.cpp

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SparseSetTest.cpp

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StringMapTest.cpp

Remove StringMap::GetOrCreateValue in favor of StringMap::insert

2014-11-19 05:49:42 +00:00

StringRefTest.cpp

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TinyPtrVectorTest.cpp

Add 2x constructors for TinyPtrVector, one that takes in one elemenet and the other that takes in an ArrayRef<EltTy>

2014-12-31 23:33:24 +00:00

TripleTest.cpp

Add hsail and amdil64 to Triple

2014-09-19 19:52:11 +00:00

TwineTest.cpp

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VariadicFunctionTest.cpp

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