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path: root/include/llvm/Support/ConstantRange.h
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* improve switch formation to handle small range Chris Lattner2010-12-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | comparisons formed by comparisons. For example, this: void foo(unsigned x) { if (x == 0 || x == 1 || x == 3 || x == 4 || x == 6) bar(); } compiles into: _foo: ## @foo ## BB#0: ## %entry cmpl $6, %edi ja LBB0_2 ## BB#1: ## %entry movl %edi, %eax movl $91, %ecx btq %rax, %rcx jb LBB0_3 instead of: _foo: ## @foo ## BB#0: ## %entry cmpl $2, %edi jb LBB0_4 ## BB#1: ## %switch.early.test cmpl $6, %edi ja LBB0_3 ## BB#2: ## %switch.early.test movl %edi, %eax movl $88, %ecx btq %rax, %rcx jb LBB0_4 This catches a bunch of cases in GCC, which look like this: %804 = load i32* @which_alternative, align 4, !tbaa !0 %805 = icmp ult i32 %804, 2 %806 = icmp eq i32 %804, 3 %or.cond121 = or i1 %805, %806 %807 = icmp eq i32 %804, 4 %or.cond124 = or i1 %or.cond121, %807 br i1 %or.cond124, label %.thread, label %808 turning this into a range comparison. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122045 91177308-0d34-0410-b5e6-96231b3b80d8
* Merge System into Support.Michael J. Spencer2010-11-291-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120298 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix ScalarEvolution's range memoization to avoid using aDan Gohman2010-11-171-3/+0
| | | | | | | default ctor with ConstantRange. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119550 91177308-0d34-0410-b5e6-96231b3b80d8
* Memoize results from ScalarEvolution's getUnsignedRange and getSignedRange.Dan Gohman2010-11-171-0/+3
| | | | | | | This fixes some extreme compile times on unrolled sha512 code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119455 91177308-0d34-0410-b5e6-96231b3b80d8
* Add completely hokey binary-and and binary-or operations to ConstantRange andNick Lewycky2010-09-071-0/+8
| | | | | | | teach LazyValueInfo to use them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113196 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new isSignWrappedSet() method to ConstantRange.Nick Lewycky2010-09-061-0/+5
| | | | | | | | | | Fix zeroExtend and signExtend to support empty sets, and to return the smallest possible result set which contains the extension of each element in their inputs. For example zext i8 [100, 10) to i16 is now [0, 256), not i16 [100, 10) which contains 63446 members. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113187 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up ConstantRange a bit:Nick Lewycky2010-08-111-17/+18
| | | | | | | | | | - remove ashr which never worked. - fix lshr and shl and add tests. - remove dead function "intersect1Wrapped". - add a new sub method to subtract ranges, with test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110861 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove layering violation.Owen Anderson2010-08-071-3/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110505 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an inverse() method to ConstantRange.Owen Anderson2010-08-071-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110504 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete this explicit assignment operator; it's equivalent toDan Gohman2010-08-071-6/+0
| | | | | | | the implicit one. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110498 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a convenience constructor.Owen Anderson2010-08-071-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110493 91177308-0d34-0410-b5e6-96231b3b80d8
* Give ConstantRange an operator=Owen Anderson2010-08-051-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110376 91177308-0d34-0410-b5e6-96231b3b80d8
* implement shl, ashr, and lshr methods. shl is not fully implemented as it is ↵Nuno Lopes2009-11-121-0/+12
| | | | | | quite tricky. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86986 91177308-0d34-0410-b5e6-96231b3b80d8
* add zextOrTrunc and sextOrTrunc methods, that are similar to the ones in APIntNuno Lopes2009-11-091-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86549 91177308-0d34-0410-b5e6-96231b3b80d8
* Move DataTypes.h to include/llvm/System, update all users. This breaks the lastChandler Carruth2009-10-261-1/+1
| | | | | | | direct inclusion edge from System to Support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85086 91177308-0d34-0410-b5e6-96231b3b80d8
* Change Pass::print to take a raw ostream instead of std::ostream,Chris Lattner2009-08-231-2/+0
| | | | | | | update all code that this affects. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79830 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace intersectWith with maximalIntersectWith. The latter guarantees thatNick Lewycky2009-07-181-12/+4
| | | | | | | | | all values belonging to the intersection will belong to the resulting range. The former was inconsistent about that point (either way is fine, just pick one.) This is part of PR4545. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76289 91177308-0d34-0410-b5e6-96231b3b80d8
* Make this clearer for the mathematically inclined. Thanks to Duncan Sands forNick Lewycky2009-07-121-0/+4
| | | | | | | going over the text! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75414 91177308-0d34-0410-b5e6-96231b3b80d8
* Clarify and simplify.Nick Lewycky2009-07-111-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75366 91177308-0d34-0410-b5e6-96231b3b80d8
* Move a method that creates constant ranges relative to another constant rangeNick Lewycky2009-07-111-0/+10
| | | | | | | | | | | per icmp predicate out of predsimplify and into ConstantRange. Add another utility method that determines whether one range is a subset of another. Combine with the former to determine whether icmp pred range, range is known to be true or not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75357 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert the part of 75177 that split ConstantRange into two classes, andDan Gohman2009-07-091-191/+42
| | | | | | | | | merge the new functionality and unittests into ConstantRange. Thanks to Nick Lewycky for pointing out that it isn't necessary to have two separate classes here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75191 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a ConstantSignedRange class, which does for signed integersDan Gohman2009-07-091-37/+215
| | | | | | | | | | | | | | what ConstantRange does for unsigned integers. Factor out a common base class for common functionality. Add some new functions for performing arithmetic on constant ranges. Some of these are currently just stubbed out with conservative implementations. Add unittests for ConstantRange and ConstantSignedRange. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75177 91177308-0d34-0410-b5e6-96231b3b80d8
* Removed trailing whitespace.Misha Brukman2009-02-201-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65196 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch the asmprinter (.ll) and all the stuff it requires over toChris Lattner2008-08-231-5/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | use raw_ostream instead of std::ostream. Among other goodness, this speeds up llvm-dis of kc++ with a release build from 0.85s to 0.49s (88% faster). Other interesting changes: 1) This makes Value::print be non-virtual. 2) AP[S]Int and ConstantRange can no longer print to ostream directly, use raw_ostream instead. 3) This fixes a bug in raw_os_ostream where it didn't flush itself when destroyed. 4) This adds a new SDNode::print method, instead of only allowing "dump". A lot of APIs have both std::ostream and raw_ostream versions, it would be useful to go through and systematically anihilate the std::ostream versions. This passes dejagnu, but there may be minor fallout, plz let me know if so and I'll fix it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55263 91177308-0d34-0410-b5e6-96231b3b80d8
* Add explicit keywords.Dan Gohman2008-02-201-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47382 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't attribute in file headers anymore. See llvmdev for theChris Lattner2007-12-291-2/+2
| | | | | | | | discussion of this change. Boy are my fingers tired. ;-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45411 91177308-0d34-0410-b5e6-96231b3b80d8
* Clarify the language. Pointed out by Duncan Sands.Nick Lewycky2007-07-141-2/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39857 91177308-0d34-0410-b5e6-96231b3b80d8
* Add alternate ConstantRange intersection algorithm.Nick Lewycky2007-07-141-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39851 91177308-0d34-0410-b5e6-96231b3b80d8
* Add signExtend to ConstantRange, to complement zeroExtend and truncate.Nick Lewycky2007-04-071-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35733 91177308-0d34-0410-b5e6-96231b3b80d8
* Add getter methods for the extremes of a ConstantRange.Nick Lewycky2007-03-101-0/+20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35056 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the "isSigned" parameters from ConstantRange. It turns out theyReid Spencer2007-03-011-7/+5
| | | | | | | | | are not needed as the results are the same with or without it. Patch by Nicholas Lewycky. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34782 91177308-0d34-0410-b5e6-96231b3b80d8
* Move ConstantRange class to lib/Support from lib/Analysis and make itsReid Spencer2007-02-281-15/+7
| | | | | | | interface not depend on Type or ICmpInst. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34761 91177308-0d34-0410-b5e6-96231b3b80d8
* For PR1205:Reid Spencer2007-02-281-6/+9
| | | | | | | | Remove ConstantInt from ConstantRange interface and adjust its users to compensate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34758 91177308-0d34-0410-b5e6-96231b3b80d8
* For PR1205:Reid Spencer2007-02-281-9/+5
| | | | | | | | First round of ConstantRange changes. This makes all CR constructors use only APInt and not use ConstantInt. Clients are adjusted accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34756 91177308-0d34-0410-b5e6-96231b3b80d8
* For PR1205:Reid Spencer2007-02-281-4/+10
| | | | | | | | Convert ConstantRange class to use APInt internally as its value type for the constant range, instead of ConstantInt. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34745 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix comments to match names of functions.Nick Lewycky2007-02-111-7/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34173 91177308-0d34-0410-b5e6-96231b3b80d8
* For PR1043:Zhou Sheng2007-01-111-6/+5
| | | | | | | | Merge ConstantIntegral and ConstantBool into ConstantInt. Remove ConstantIntegral and ConstantBool from LLVM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33073 91177308-0d34-0410-b5e6-96231b3b80d8
* For PR950:Reid Spencer2006-12-231-8/+18
| | | | | | | | | This patch removes the SetCC instructions and replaces them with the ICmp and FCmp instructions. The SetCondInst instruction has been removed and been replaced with ICmpInst and FCmpInst. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32751 91177308-0d34-0410-b5e6-96231b3b80d8
* Added an automatic cast to "std::ostream*" etc. from OStream. We then canBill Wendling2006-12-171-3/+1
| | | | | | | | rework the hacks that had us passing OStream in. We pass in std::ostream* instead, check for null, and then dispatch to the correct print() method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32636 91177308-0d34-0410-b5e6-96231b3b80d8
* Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, areBill Wendling2006-12-071-1/+1
| | | | | | | now cerr, cout, and NullStream resp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32298 91177308-0d34-0410-b5e6-96231b3b80d8
* Added a temporary hack to get the llvm-streams to work for future checkins.Bill Wendling2006-11-281-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31978 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove trailing whitespaceMisha Brukman2005-04-211-8/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21411 91177308-0d34-0410-b5e6-96231b3b80d8
* Changes For Bug 352Reid Spencer2004-09-011-1/+1
| | | | | | | | | Move include/Config and include/Support into include/llvm/Config, include/llvm/ADT and include/llvm/Support. From here on out, all LLVM public header files must be under include/llvm/. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16137 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some new methodsChris Lattner2004-03-301-0/+25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12539 91177308-0d34-0410-b5e6-96231b3b80d8
* Relax the interface a bitChris Lattner2004-03-291-5/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12533 91177308-0d34-0410-b5e6-96231b3b80d8
* Put all LLVM code into the llvm namespace, as per bug 109.Brian Gaeke2003-11-111-0/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8
* Added LLVM copyright header (for lack of a better term).John Criswell2003-10-201-0/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9304 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement operator== and != for rangesChris Lattner2002-09-031-0/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3571 91177308-0d34-0410-b5e6-96231b3b80d8
* Add printing support to ConstantRange classChris Lattner2002-09-021-0/+14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3566 91177308-0d34-0410-b5e6-96231b3b80d8
* Initial implementation of ConstantRange supportChris Lattner2002-09-011-0/+97
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3564 91177308-0d34-0410-b5e6-96231b3b80d8
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