Commit Graph

221 Commits

Author SHA1 Message Date
Reid Spencer 861c1cb67a 1. Fix some indentation and variable names in the get{Min,Max}Value methods.
2. Implement toString for power-of-2 radix without using divide and always
   printing full words. This allows hex/binary to look at the bit
   respresentation of the APInt as well as avoid bugs in divide.

llvm-svn: 34396
2007-02-18 22:29:05 +00:00
Reid Spencer be4ddf6856 1. Use APINT_WORD_SIZE instead of sizeof(uint64_t)
2. Teach slt about signedness.
3. Teach roundToDouble to properly sign extend.

llvm-svn: 34391
2007-02-18 20:09:41 +00:00
Reid Spencer a856b6e985 1. Remove dead code (lshift function).
2. Consolidate memory allocation into just two inline functions.
3. Convert "unsigned" to uint32_t to gaurantee its size.
4. Eliminate magic constants and replace with symbolic equivalent.
5. Improve code documentation slightly.
6. Simplify the logical operator code because bitwidths must be the same.
7. Fix indentation per coding standards.
8. Use exit-early style to reduce indentation in several functions.

llvm-svn: 34389
2007-02-18 18:38:44 +00:00
Reid Spencer ee0a685ea1 Make add_1 exit early if carry is 0.
Fix line breaks and 80 cols violation.
Simplify operator^= since bitwidths must be the same.

llvm-svn: 34388
2007-02-18 06:39:42 +00:00
Reid Spencer fbd48a566a Implement signed output for toString.
Fix bugs in countLeadingZeros and countTrailingZeros.

llvm-svn: 34386
2007-02-18 00:44:22 +00:00
Reid Spencer 26c6616e4b Fix some bugs in division logic.
llvm-svn: 34384
2007-02-17 22:38:07 +00:00
Reid Spencer 100502d256 Move static functions closer to their usage.
llvm-svn: 34363
2007-02-17 03:16:00 +00:00
Reid Spencer 3986776fbd Clean up the divide and remainder logic a bit (exit early). Use more
meaningful variable names. Add comments to document the flow.

llvm-svn: 34362
2007-02-17 02:07:07 +00:00
Reid Spencer a32372d110 Fix bugs introduced by constructor parameter order change.
llvm-svn: 34357
2007-02-17 00:18:01 +00:00
Reid Spencer 1d0721209d Review changes:
1. Function style changes.
2. 80-col violations.
3. Better names for things.
4. Arrange constructors so they all take bit width first.
5. Add named signed and unsigned comparison functions and remove the
   corresponding operators.
6. Remove operator&& and operator|| but provide a getBoolValue function which
   converts to bool as comparison against 0. This allows the normal && and
   || operators to be used as if (X.getBoolValue() && Y.getBoolValue())

Note: this still doesn't function 100% yet. I'm working on the bugs now.
llvm-svn: 34353
2007-02-16 22:36:51 +00:00
Zhou Sheng cfa2ac0592 Fix some buges:
1. Make getMinValue() returns the right value.
2. Fix the ByteSwap() crash problem.
3. Make Postfix increment work correctly.
4. Fix some bugs in LogBase2, Hi/LoBits and UDiv.

llvm-svn: 34304
2007-02-15 06:36:31 +00:00
Reid Spencer 0c5db23119 Use brute-force algorithm for to_string. It doesn't have to be efficient
at this point, it just needs to work so we can test things reliably.

llvm-svn: 34262
2007-02-14 02:52:25 +00:00
Reid Spencer 5153525402 Make some minor improvements to APInt:
1. Make all the operators use uppercase
2. Rename APIntRoundToDouble method just RoundToDouble, the APInt is
   redundant.
3. Turn the class on for compilation.

llvm-svn: 34253
2007-02-13 22:41:58 +00:00
Zhou Sheng d707d63317 1. Make APInt::shl work correctly and more efficiently.
2. Add functions to support the numberical conversion between APInt and
   double/float.

llvm-svn: 34201
2007-02-12 20:02:55 +00:00
Zhou Sheng e93db8fba2 Eliminates friend function declaration inside APInt, instead, adds public
methods as those global function's internal implementation.

llvm-svn: 34083
2007-02-09 07:48:24 +00:00
Zhou Sheng 11eea86410 Switched this file on accidently.
llvm-svn: 34054
2007-02-08 16:45:48 +00:00
Zhou Sheng fbf61eaba7 As Chris and Reid suggested, remove "isSigned" field from APInt, instead,
add some signed/unsigned arithmetic operation functions into APInt.h to
handle the signed/unsigned issue. These functions will be defined inside a
namespace "APIntOps" which is inside llvm namespace.

llvm-svn: 34053
2007-02-08 14:35:19 +00:00
Zhou Sheng 3e8022d61d As Chris suggested, fixed some problems. (This is the first part)
llvm-svn: 33989
2007-02-07 06:14:53 +00:00
Zhou Sheng 94b623aad4 As Reid suggested, fixed some problems.
llvm-svn: 33955
2007-02-06 06:04:53 +00:00
Chris Lattner 28cbd1d624 Disable this for now.
llvm-svn: 33953
2007-02-06 05:38:37 +00:00
Zhou Sheng dac63788ab Add a class APInt to represent arbitrary precision constant integral values.
It is a functional replacement for common case integer type like "unsigned",
"uint64_t", but also allows non-byte-width integer type and large integer
value types such as 3-bits, 15-bits, or more than 64-bits of precision. For
more details, see pr1043.

llvm-svn: 33951
2007-02-06 03:00:16 +00:00