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path: root/include/llvm/ADT/APFloat.h
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* [APFloat] Removed nextafter from missing operations since it is implemented ↵Michael Gottesman2013-07-27
| | | | | | in APFloat::next. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187312 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Revert "[APFloat] Removed APFloat constructor which initialized to ↵Michael Gottesman2013-06-27
| | | | | | | | | | | | | | | | | | | | either zero/NaN but allowed you to arbitrarily set the category of the float."" This reverts commit r185099. Looks like both the ppc-64 and mips bots are still failing after I reverted this change. Since: 1. The mips bot always performs a clean build, 2. The ppc64-bot failed again after a clean build (I asked the ppc-64 maintainers to clean the bot which they did... Thanks Will!), I think it is safe to assume that this change was not the cause of the failures that said builders were seeing. Thus I am recomitting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185111 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "[APFloat] Removed APFloat constructor which initialized to either ↵Michael Gottesman2013-06-27
| | | | | | | | | | | | zero/NaN but allowed you to arbitrarily set the category of the float." This reverts commit r185095. This is causing a FileCheck failure on the 3dnow intrinsics on at least the mips/ppc bots but not on the x86 bots. Reverting while I figure out what is going on. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185099 91177308-0d34-0410-b5e6-96231b3b80d8
* [APFloat] Removed APFloat constructor which initialized to either zero/NaN ↵Michael Gottesman2013-06-27
| | | | | | | | | | | | | | but allowed you to arbitrarily set the category of the float. The category which an APFloat belongs to should be dependent on the actual value that the APFloat has, not be arbitrarily passed in by the user. This will prevent inconsistency bugs where the category and the actual value in APFloat differ. I also fixed up all of the references to this constructor (which were only in LLVM). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185095 91177308-0d34-0410-b5e6-96231b3b80d8
* [APFloat] Added support for parsing float strings which contain ↵Michael Gottesman2013-06-24
| | | | | | {inf,-inf,NaN,-NaN}. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184713 91177308-0d34-0410-b5e6-96231b3b80d8
* [APFloat] Added make{Zero,Inf} methods and implemented get{Zero,Inf} on top ↵Michael Gottesman2013-06-24
| | | | | | of them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184712 91177308-0d34-0410-b5e6-96231b3b80d8
* [APFloat] Removed out of date comment from isNormal().Michael Gottesman2013-06-24
| | | | | | | I already finished the isIEEENormal => isNormal transition. So isNormal is now IEEE-754R compliant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184687 91177308-0d34-0410-b5e6-96231b3b80d8
* [APFloat] Rename llvm::exponent_t => llvm::APFloat::ExponentType.Michael Gottesman2013-06-24
| | | | | | | | | exponent_t is only used internally in APFloat and no exponent_t values are exposed via the APFloat API. In light of such conditions it does not make any sense to gum up the llvm namespace with said type. Plus it makes it clearer that exponent_t is associated with APFloat. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184686 91177308-0d34-0410-b5e6-96231b3b80d8
* [APFloat] Added missing doxygen module closing statement.Michael Gottesman2013-06-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184526 91177308-0d34-0410-b5e6-96231b3b80d8
* [APFloat] Rename isIEEENormal => isNormal and remove old isNormal method.Michael Gottesman2013-06-20
| | | | | | | | The old isNormal is already functionally replaced by the method isFiniteNonZero in r184350 and all references to said method were replaced in LLVM/clang in r184356/134366. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184449 91177308-0d34-0410-b5e6-96231b3b80d8
* [APFloat] Converted all references to APFloat::isNormal => ↵Michael Gottesman2013-06-19
| | | | | | | | APFloat::isFiniteNonZero. Turns out all the references were in llvm and not in clang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184356 91177308-0d34-0410-b5e6-96231b3b80d8
* [APFloat] Added isFiniteNonZero predicate.Michael Gottesman2013-06-19
| | | | | | | | | | | | | | | | | This is the first patch in a series of patches to rename isNormal => isFiniteNonZero and isIEEENormal => isNormal. In order to prevent careless errors on my part the overall plan is: 1. Add the isFiniteNonZero predicate with tests. I can do this in a method independent of isNormal. (This step is this patch). 2. Convert all references to isNormal with isFiniteNonZero. My plan is to comment out isNormal locally and continually convert isNormal references => isFiniteNonZero until llvm/clang compiles. 3. Remove old isNormal and rename isIEEENormal to isNormal. 4. Look through all of said references from patch 2 and see if we can simplify them by using the new isNormal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184350 91177308-0d34-0410-b5e6-96231b3b80d8
* [APFloat] Expose isSmallest/isLargest as public methods.Michael Gottesman2013-06-19
| | | | | | | I have had several requests to expose these two methods as public for various potential optimizations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184345 91177308-0d34-0410-b5e6-96231b3b80d8
* IEEE-754R 5.7.2 General Operations is* operations (except for isCanonical).Michael Gottesman2013-06-04
| | | | | | | | | | | | | | | Specifically the following work was done: 1. If the operation was not implemented, I implemented it. 2. If the operation was already implemented, I just moved its location in the APFloat header into the IEEE-754R 5.7.2 section. If the name was incorrect, I put in a comment giving the true IEEE-754R name. Also unittests have been added for all of the functions which did not already have a unittest. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183179 91177308-0d34-0410-b5e6-96231b3b80d8
* Introduce needsCleanup() for APFloat and APInt.Manuel Klimek2013-06-03
| | | | | | | | | This is needed in clang so one can check if the object needs the destructor called after its memory was freed. This is useful when creating many APInt/APFloat objects with placement new, where the overhead of tracking the pointers for cleanup is significant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183100 91177308-0d34-0410-b5e6-96231b3b80d8
* Removed a comment above an include which is unnecessary and added a missing ↵Michael Gottesman2013-06-01
| | | | | | closing @} for a doxygen comment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183065 91177308-0d34-0410-b5e6-96231b3b80d8
* Added method comments for getZero,getInf.Michael Gottesman2013-06-01
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183064 91177308-0d34-0410-b5e6-96231b3b80d8
* Updated APFloat's comments to fit the LLVM style guide.Michael Gottesman2013-06-01
| | | | | | Also added a few more method comments and performed some copy editing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183063 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement IEEE-754R 2008 nextUp/nextDown functions in the guise of the ↵Michael Gottesman2013-05-30
| | | | | | | | function APFloat::next(bool nextDown). rdar://13852078 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182945 91177308-0d34-0410-b5e6-96231b3b80d8
* clang formatted APFloat.hMichael Gottesman2013-05-24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182686 91177308-0d34-0410-b5e6-96231b3b80d8
* Use LLVM_DELETED_FUNCTION rather than '// do not implement' comments.David Blaikie2013-02-18
| | | | | | | Also removes some redundant DNI comments on function declarations already using the macro. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175466 91177308-0d34-0410-b5e6-96231b3b80d8
* Make APFloat constructor require explicit semantics.Tim Northover2013-01-22
| | | | | | | | | Previously we tried to infer it from the bit width size, with an added IsIEEE argument for the PPC/IEEE 128-bit case, which had a default value. This default value allowed bugs to creep in, where it was inappropriate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173138 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix include guards so they exactly match file names.Jakub Staszak2013-01-10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172025 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement APFloat::isDenormal()Shuxin Yang2013-01-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171764 91177308-0d34-0410-b5e6-96231b3b80d8
* Add extra declarations of hash_value needed to build llvm with xlc 12.1.Rafael Espindola2012-10-31
| | | | | | Patch by Kai! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167085 91177308-0d34-0410-b5e6-96231b3b80d8
* APFloat cleanup: Remove now unused fields "sign2" and "exponent2".Ulrich Weigand2012-10-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166952 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. ↵Sylvestre Ledru2012-09-27
| | | | | | See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164767 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164768 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo 'iff' => 'if'Sylvestre Ledru2012-09-27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164767 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a roundToIntegral method to APFloat, which can be parameterized over ↵Owen Anderson2012-08-13
| | | | | | various rounding modes. Use this to implement SelectionDAG constant folding of FFLOOR, FCEIL, and FTRUNC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161807 91177308-0d34-0410-b5e6-96231b3b80d8
* Express the number of ULPs in fpaccuracy metadata as a real rather than aDuncan Sands2012-04-10
| | | | | | | rational number, eg as 2.5 rather than 5, 2. OK'd by Peter Collingbourne. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154387 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace the hashing functions on APInt and APFloat with overloads of theChandler Carruth2012-03-04
| | | | | | | | | | | | | | new hash_value infrastructure, and replace their implementations using hash_combine. This removes a complete copy of Jenkin's lookup3 hash function (which is both significantly slower and lower quality than the one implemented in hash_combine) along with a somewhat scary xor-only hash function. Now that APInt and APFloat can be passed directly to hash_combine, simplify the rest of the LLVMContextImpl hashing to use the new infrastructure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152004 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an APFloat::convertToInt(APSInt) function that automatically manages theJeffrey Yasskin2011-07-15
| | | | | | memory for the result. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135259 91177308-0d34-0410-b5e6-96231b3b80d8
* Add APFloat::getExactInverse.Benjamin Kramer2011-03-30
| | | | | | | | | | | | | | The idea is, that if an ieee 754 float is divided by a power of two, we can turn the division into a cheaper multiplication. This function sees if we can get an exact multiplicative inverse for a divisor and returns it if possible. This is the hard part of PR9587. I tested many inputs against llvm-gcc's frotend implementation of this optimization and didn't find any difference. However, floating point is the land of weird edge cases, so any review would be appreciated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128545 91177308-0d34-0410-b5e6-96231b3b80d8
* Enhance constant folding of bitcast operations on vectors of floats.Nadav Rotem2011-02-17
| | | | | | | | | Add getAllOnesValue of FP numbers to Constants and APFloat. Add more tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125776 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't pass StringRef by reference.Benjamin Kramer2010-07-14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108366 91177308-0d34-0410-b5e6-96231b3b80d8
* make APFloat::toString be const.Chris Lattner2010-03-06
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97883 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach APFloat how to create both QNaNs and SNaNs and with arbitrary-widthJohn McCall2010-02-28
| | | | | | | | | | payloads. APFloat's internal folding routines always make QNaNs now, instead of sometimes making QNaNs and sometimes SNaNs depending on the type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97364 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement support for converting to string at "natural precision", and fix someJohn McCall2009-12-24
| | | | | | | | major bugs in long-precision conversion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92150 91177308-0d34-0410-b5e6-96231b3b80d8
* Add accessors for the largest-magnitude, smallest-magnitude, andJohn McCall2009-12-24
| | | | | | | | | | smallest-normalized-magnitude values in a given FP semantics. Provide an APFloat-to-string conversion which I am quite ready to admit could be much more efficient. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92126 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove getIEEEFloatParts and getIEEEDoubleParts. They are not needed.Evan Cheng2009-10-28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85358 91177308-0d34-0410-b5e6-96231b3b80d8
* Add new APFloat methods that return sign, exp, and mantissa of ieee float ↵Evan Cheng2009-10-27
| | | | | | and double values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85318 91177308-0d34-0410-b5e6-96231b3b80d8
* Add half precision floating point support (float16) to APFloat,Chris Lattner2009-10-16
| | | | | | | patch by Peter Johnson! (PR5195) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84239 91177308-0d34-0410-b5e6-96231b3b80d8
* add a version of the APFloat constructor that initializes to 0.0Chris Lattner2009-09-17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82110 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement APInt <-> APFloat conversion for IEEE 128-bit floats.Anton Korobeynikov2009-08-21
| | | | | | This fixes PR2555 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79677 91177308-0d34-0410-b5e6-96231b3b80d8
* Make a declaration consistent with its definition.Oscar Fuentes2009-08-17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79220 91177308-0d34-0410-b5e6-96231b3b80d8
* Modify APFloat to take a StringRef instead of a c string.Erick Tryzelaar2009-08-16
| | | | | | | This also adds unit tests to APFloat that mainly tests the string handling of APFloat, but not much else of it's api. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79210 91177308-0d34-0410-b5e6-96231b3b80d8
* Dcoument that the opauque value used to construct QNaNs is truncatedMike Stump2009-06-01
| | | | | | | as necessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72702 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some documentation.Mike Stump2009-05-30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72622 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for letting the client choose different flavors of NaNs. ↵Mike Stump2009-05-30
| | | | | | | | | Testcase to be added in clang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72606 91177308-0d34-0410-b5e6-96231b3b80d8
* Make special cases (0 inf nan) work for frem.Dale Johannesen2009-01-21
| | | | | | | | | | Besides APFloat, this involved removing code from two places that thought they knew the result of frem(0., x) but were wrong. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62645 91177308-0d34-0410-b5e6-96231b3b80d8
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