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* A quick nm audit turned up several fixed tables and objects that wereDan Gohman2008-03-251-1/+1
| | | | | | | | marked read-write. Use const so that they can be allocated in a read-only segment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48800 91177308-0d34-0410-b5e6-96231b3b80d8
* Add assert for non-hexadecimal radixes.Bill Wendling2008-03-161-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48421 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo. It's causing consumer-typeset to miscompile. Perhaps more.Evan Cheng2008-03-071-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48035 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support to APInt for shift and rotate operations with APIntDan Gohman2008-02-291-0/+27
| | | | | | | instead of uint32_t for the shift/rotate count operand type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47741 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed bug in APInt::Profile() where the BitWidth field was not included in theTed Kremenek2008-02-191-0/+2
| | | | | | | | profile of the APSInt object. This caused unexpected Profile collisions where none should have occurred. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47338 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a warning about comparison between signed and unsigned,Dan Gohman2008-02-141-1/+1
| | | | | | | being consistent with the rest of the APInt implementation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47138 91177308-0d34-0410-b5e6-96231b3b80d8
* Add countTrailingOnes member functions to APInt.Dan Gohman2008-02-131-0/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47086 91177308-0d34-0410-b5e6-96231b3b80d8
* Added FoldingSet style 'profiling' support for APInt.Ted Kremenek2008-01-191-1/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46188 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove attribution from file headers, per discussion on llvmdev.Chris Lattner2007-12-291-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
* Cygwin defines uint32_t as unsigned long. Unbreak call to std::min in this caseAnton Korobeynikov2007-12-241-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45342 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't have APInt.cpp depend upon DerivedTypes.h. This helps with splitting theReid Spencer2007-12-111-14/+23
| | | | | | | Support libraries separately into their own module. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44852 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR1816, by correcting the broken definition of APInt::countTrailingZeros.Chris Lattner2007-11-231-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44296 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix APInt::countTrailingZeros to return BitWidth if the input is zero ↵Chris Lattner2007-11-231-2/+2
| | | | | | instead of returning some random large number. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44294 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't attempt to mask no bitsNeil Booth2007-10-121-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42909 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new function tcExtract for extracting a bignum from anNeil Booth2007-10-081-34/+76
| | | | | | | | | | | | | | | arbitrary range of bits embedded in the middle of another bignum. This kind of operation is desirable in many cases of software floating point, e.g. converting bignum integers to floating point numbers of fixed precision (you want to extract the precision most significant bits). Elsewhere, add an assertion, and exit the shift functions early if the shift count is zero. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42745 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix and clarify some comments.Neil Booth2007-10-061-12/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42670 91177308-0d34-0410-b5e6-96231b3b80d8
* Generalize tcFullMultiply so that the operands can be of differingNeil Booth2007-10-061-13/+20
| | | | | | | | | part widths. Also, return the number of parts actually required to hold the result's value. Remove an over-cautious condition from rounding of float->hex conversion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42669 91177308-0d34-0410-b5e6-96231b3b80d8
* Change APFloat::convertFromInteger to take the incomingDale Johannesen2007-09-211-1/+1
| | | | | | | | | | | | bit width instead of number of words allocated, which makes it actually work for int->APF conversions. Adjust callers. Add const to one of the APInt constructors to prevent surprising match when called with const argument. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42210 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not hide APInt::dump() inside #ifndef NDEBUG.Devang Patel2007-09-171-4/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42068 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the assumption that FP's are either float orDale Johannesen2007-09-141-1/+1
| | | | | | | | | | | | | | | double from some of the many places in the optimizers it appears, and do something reasonable with x86 long double. Make APInt::dump() public, remove newline, use it to dump ConstantSDNode's. Allow APFloats in FoldingSet. Expand X86 backend handling of long doubles (conversions to/from int, mostly). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41967 91177308-0d34-0410-b5e6-96231b3b80d8
* rename APInt::toString -> toStringUnsigned for symmetry with toStringSigned()Chris Lattner2007-08-231-2/+2
| | | | | | | | Add an APSInt::toString() method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41309 91177308-0d34-0410-b5e6-96231b3b80d8
* initial checkin of Neil's APFloat work.Chris Lattner2007-08-201-10/+30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41203 91177308-0d34-0410-b5e6-96231b3b80d8
* This adds a bunch of static functions that implement unsignedChris Lattner2007-08-161-0/+566
| | | | | | | | | | | | | two's complement bignum arithmetic. They could be used to implement much of APInt, but the idea is they are enough to implement APFloat as well, which the current APInt interface is not suited for. Patch by Neil Booth! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41124 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix an assertion introduced by my last change to the toString method. WeReid Spencer2007-05-191-2/+2
| | | | | | | | can't use getZExtValue() to extract the low order bits for each digit. Instead, we need to access the low order word directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37242 91177308-0d34-0410-b5e6-96231b3b80d8
* Get rid of leading zeros in the output of toString.Reid Spencer2007-05-171-8/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37175 91177308-0d34-0410-b5e6-96231b3b80d8
* For lshr by 0 bits, just return *this as a short cut. This also preventsReid Spencer2007-05-171-0/+6
| | | | | | | undefined behavior when the width > 64 bits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37153 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug in the "fromString" method where radix 2,8 and 16 values wereReid Spencer2007-05-161-8/+13
| | | | | | | | | not being generated correctly because the shl operator does not mutate its object but returns a new value. Also, make the distinction between radix 16 and the others more clear. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37111 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the results for the rotate functions correct when rotateAmt == 0.Reid Spencer2007-05-141-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37026 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some things needed by the llvm-gcc version supporting bit accurate integerReid Spencer2007-05-131-1/+67
| | | | | | | | | | | | types: 1. Functions to compute div/rem at the same time. 2. Further assurance that an APInt with 0 bitwidth cannot be constructed. 3. Left and right rotate operations. 4. An exactLogBase2 function which requires an exact power of two or it returns -1. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37025 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix shl to produce the correct result when the bitwidth is > 64 and theReid Spencer2007-05-121-0/+6
| | | | | | | | shift amount is 0. Previously this code would do a lshr by the bit width which can lead to incorrect results. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37010 91177308-0d34-0410-b5e6-96231b3b80d8
* silence some annoying gcc 4.3 warningsChris Lattner2007-05-031-7/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36680 91177308-0d34-0410-b5e6-96231b3b80d8
* We want the number of bits needed, not the power of 2.Reid Spencer2007-04-141-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35977 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement a getBitsNeeded method to determine how many bits are needed toReid Spencer2007-04-131-0/+37
| | | | | | | represent a string in binary form by an APInt. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35968 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix an approximate calculation in an assertion not to give false negatives.Reid Spencer2007-04-111-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35901 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug in getAllOnesValue() which brokeZhou Sheng2007-03-211-1/+1
| | | | | | | some test cases for bitwidth > 64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35232 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix (and simplify) 48-bit byte swap.Jeff Cohen2007-03-201-9/+8
| | | | | | | Get pos/neg infinity the correct way. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35223 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix coding standards violation.Reid Spencer2007-03-191-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35189 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement extension of sign bits for negative values in the uint64_tReid Spencer2007-03-191-1/+5
| | | | | | | constructor. This helps to fix test/Assembler/2007-03-19-NegValue.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35180 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert the last patch as it violates the conditions of sext/zext.Reid Spencer2007-03-121-4/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35068 91177308-0d34-0410-b5e6-96231b3b80d8
* For APInt::z/sext(width), if width == BitWidth, just return *this.Zhou Sheng2007-03-121-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35065 91177308-0d34-0410-b5e6-96231b3b80d8
* Unbreak VC++ build.Jeff Cohen2007-03-051-1/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34917 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix ashr for bitwidths > 64. This is now validated up to 1024 bits.Reid Spencer2007-03-021-33/+49
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34852 91177308-0d34-0410-b5e6-96231b3b80d8
* Use a better algorithm for rounding sqrt results. Change the FIXME aboutReid Spencer2007-03-021-8/+12
| | | | | | | | | | this to a NOTE: because pari/gp results start to get rounded incorrectly after 192 bits of precision. APInt and pari/gp never differ by more than 1, but APInt is more accurate because it does not lose precision after 192 bits as does pari/gp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34834 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a FIXMEReid Spencer2007-03-021-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34828 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a problem where shifting by 64-bits leads to incorrect results on PPCReid Spencer2007-03-021-1/+4
| | | | | | | but not on X86 becuase shift by word size is "undefined". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34825 91177308-0d34-0410-b5e6-96231b3b80d8
* Combine two lines that can be.Reid Spencer2007-03-011-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34818 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the static table of results in sqrt const.Reid Spencer2007-03-011-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34791 91177308-0d34-0410-b5e6-96231b3b80d8
* Add methods for bit width modification: sextOrTrunc, zextOrTrunc.Reid Spencer2007-03-011-0/+16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34789 91177308-0d34-0410-b5e6-96231b3b80d8
* Use a real table in sqrt to shorten and quicken the code.Reid Spencer2007-03-011-14/+10
| | | | | | | Thanks for the idea Chris. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34779 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a square root function.Reid Spencer2007-03-011-6/+87
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34775 91177308-0d34-0410-b5e6-96231b3b80d8