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path: root/lib/VMCore/ConstantFold.cpp
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2007-02-27Adjust to changes in the APInt interface.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34681 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27For PR1205:Reid Spencer
Implement review feedback: 1. Use new APInt::RoundDoubleToAPInt interface to specify the bit width so that we don't have to truncate or extend in constant folding. 2. Fix a pasteo in SDiv that prevented a check for overflow. 3. Fix the shift operators: undef happens when the shift amount is equal to the bitwidth. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34677 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27For PR1205:Reid Spencer
Implement constant folding via APInt instead of uint64_t. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34660 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27ConstantFolding.cpp/h -> ConstantFold.cpp/h to avoid confusion withChris Lattner
lib/Analysis/ConstantFolding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34653 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-24Fix Transforms/ConstProp/2007-02-23-sdiv.ll and PR1215Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34548 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-15For PR1195:Reid Spencer
Change use of "packed" term to "vector" in comments, strings, variable names, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34300 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-15For PR1195:Reid Spencer
Rename PackedType -> VectorType, ConstantPacked -> ConstantVector, and PackedTyID -> VectorTyID. No functional changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34293 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-06Fix Transforms/ConstProp/2007-02-05-BitCast.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33948 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-31Revise APIs for creating constantexpr GEPs to not require the use of vectors.Chris Lattner
This allows us to eliminate many temporary vectors, and theirassociated malloc/free pairs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33692 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-19For PR1043:Reid Spencer
This is the final patch for this PR. It implements some minor cleanup in the use of IntegerType, to wit: 1. Type::getIntegerTypeMask -> IntegerType::getBitMask 2. Type::Int*Ty changed to IntegerType* from Type* 3. ConstantInt::getType() returns IntegerType* now, not Type* This also fixes PR1120. Patch by Sheng Zhou. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33370 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-15rename Type::isIntegral to Type::isInteger, eliminating the old Type::isInteger.Chris Lattner
rename Type::getIntegralTypeMask to Type::getIntegerTypeMask. This makes naming much more consistent. For example, there are now no longer any instances of IntegerType that are not considered isInteger! :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33225 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-12Remove a bunch of duplicated code. Among other things, this fixesChris Lattner
constant folding of signed comparisons of bool. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33134 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-12For PR1064:Reid Spencer
Implement the arbitrary bit-width integer feature. The feature allows integers of any bitwidth (up to 64) to be defined instead of just 1, 8, 16, 32, and 64 bit integers. This change does several things: 1. Introduces a new Derived Type, IntegerType, to represent the number of bits in an integer. The Type classes SubclassData field is used to store the number of bits. This allows 2^23 bits in an integer type. 2. Removes the five integer Type::TypeID values for the 1, 8, 16, 32 and 64-bit integers. These are replaced with just IntegerType which is not a primitive any more. 3. Adjust the rest of LLVM to account for this change. Note that while this incremental change lays the foundation for arbitrary bit-width integers, LLVM has not yet been converted to actually deal with them in any significant way. Most optimization passes, for example, will still only deal with the byte-width integer types. Future increments will rectify this situation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33113 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-12Implement review feedback for the ConstantBool->ConstantInt merge. ChrisReid Spencer
recommended that getBoolValue be replaced with getZExtValue and that get(bool) be replaced by get(const Type*, uint64_t). This implements those changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33110 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-11Rename BoolTy as Int1Ty. Patch by Sheng Zhou.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33076 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-11For PR1043:Zhou Sheng
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
2007-01-11Implement better constant folding of unordered FCMP predicates.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33063 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-04fix typoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32859 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-04fix some bugs handling vectors, avoid host-specific handling of undefined ↵Chris Lattner
shift results. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32857 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-31Fix a bug in comparison of GEP indices.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32798 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-31For PR950:Reid Spencer
Change signed integer type names to unsigned equivalents. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32780 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-24Cleanup ConstantFoldCompareInstruction:Reid Spencer
1. Make the arguments const like the other ConstantFold* functions. 2. Clean up evaluateFCmpRelation so it makes sense for floating point. 3. Implement the use of evaluateFCmpRelation to fold floating point CEs 4. Shorten a variable name so more things fit on one line. 5. Fix various comments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32759 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-23Don't overload var names.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32752 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-23For PR950:Reid Spencer
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
2006-12-19Clean up ConstantFoldCastInstruction.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32672 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-19Rewrite ConstantFoldCastInstruction so that it doesn't use any of theReid Spencer
ConstRules. Remove the casting rules from ConstRules and subclasses. This cleans up ConstantFolding significantly. Passes all tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32671 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-18Revert last patch. ConstantInt isn't quite ready for signlessness.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32650 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-18Remove the last use of getUnsignedVersion and getSignedVersion from VMCore.Reid Spencer
ConstantInt doesn't care about the sign of the type it represents. It only cares about the bitwidth so there is no need to make the sign of the type match the SExt or ZExt constant expression. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32646 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12Replace inferred getCast(V,Ty) calls with more strict variants.Reid Spencer
Rename getZeroExtend and getSignExtend to getZExt and getSExt to match the the casting mnemonics in the rest of LLVM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32514 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-11Fix constant folding of FP->int due to cut & paste error in last commit.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32447 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-11Implement correct constant folding of bitcast. This implementsChris Lattner
Transforms/ConstProp/bitcast.ll and fixes SingleSource/Regression/C/2003-10-12-GlobalVarInitializers git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32438 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-11fix typoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32428 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-06Fix constant folding to deal with external weak global values.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32247 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-05Can't make these fail now with just BitCast. Previous failures must haveReid Spencer
been in conjunction with something else. By right, they should just be BitCasts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32219 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-05Remove the last inferred casts from VMCore.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32213 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-04For PR950: Implement a stub for folding ICmp and FCmp instructionsReid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32169 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-04Change inferred casts to explicit casts.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32165 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-01These should be rewritten to fold without using the 'Rules' mechanism, butChris Lattner
until this happens at least make sext from bool and sitofp from bool do the right thing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32087 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-01this logic is broken for trunc to bool, replace the folding logic for truncChris Lattner
completely, as it is trivial. We should probably do this for the rest of the cast operations. This fixes ConstProp/2006-12-01-TruncBoolBug.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32081 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-01Fix a typo introduced by the cast patch that horribly broke a lot of vectorChris Lattner
code. Testcase here: Transforms/ConstProp/2006-11-30-vector-cast.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32062 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-01Don't fold "ptrtoint GV to bool" since this should be doing a truncate notReid Spencer
a comparison against zero. Instead fold setne(GV,null) and seteq(GV,null) to ConstantBool::True or ConstantBool::False, respectively. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32060 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-01Introducing external weak linkage. Darwin codegen should be added later.Anton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32052 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-27For PR950:Reid Spencer
The long awaited CAST patch. This introduces 12 new instructions into LLVM to replace the cast instruction. Corresponding changes throughout LLVM are provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the exception of 175.vpr which fails only on a slight floating point output difference. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31931 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-08Remove redundant <cmath>.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31561 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-08For PR950:Reid Spencer
This patch converts the old SHR instruction into two instructions, AShr (Arithmetic) and LShr (Logical). The Shr instructions now are not dependent on the sign of their operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31542 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-02Remove unused variables.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31375 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-02For PR950:Reid Spencer
Replace the REM instruction with UREM, SREM and FREM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31369 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-26For PR950:Reid Spencer
Make necessary changes to support DIV -> [SUF]Div. This changes llvm to have three division instructions: signed, unsigned, floating point. The bytecode and assembler are bacwards compatible, however. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31195 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-20For PR950:Reid Spencer
This patch implements the first increment for the Signless Types feature. All changes pertain to removing the ConstantSInt and ConstantUInt classes in favor of just using ConstantInt. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31063 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13Fix another dtor issue. The function local statics in this function wereChris Lattner
being destroyed at inconvenient times. Switch to using non-local ManagedStatic objects, which actually also speeds up ConstRules::get. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30931 91177308-0d34-0410-b5e6-96231b3b80d8
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