Stepan Dyatkovskiy 484fc93eff PR1255: Case Ranges ... Implemented IntItem - the wrapper around APInt. Why not to use APInt item directly right now? 1. It will very difficult to implement case ranges as series of small patches. We got several large and heavy patches. Each patch will about 90-120 kb. If you replace ConstantInt with APInt in SwitchInst you will need to changes at the same time all Readers,Writers and absolutely all passes that uses SwitchInst. 2. We can implement APInt pool inside and save memory space. E.g. we use several switches that works with 256 bit items (switch on signatures, or strings). We can avoid value duplicates in this case. 3. IntItem can be easyly easily replaced with APInt. 4. Currenly we can interpret IntItem both as ConstantInt and as APInt. It allows to provide SwitchInst methods that works with ConstantInt for non-updated passes. Why I need it right now? Currently I need to update SimplifyCFG pass (EqualityComparisons). I need to work with APInts directly a lot, so peaces of code ConstantInt *V = ...; if (V->getValue().ugt(AnotherV->getValue()) { ... } will look awful. Much more better this way: IntItem V = ConstantIntVal->getValue(); if (AnotherV < V) { } Of course any reviews are welcome. P.S.: I'm also going to rename ConstantRangesSet to IntegersSubset, and CRSBuilder to IntegersSubsetMapping (allows to map individual subsets of integers to the BasicBlocks). Since in future these classes will founded on APInt, it will possible to use them in more generic ways. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157576 91177308-0d34-0410-b5e6-96231b3b80d8		2012-05-28 12:39:09 +00:00
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AsmWriter.cpp	Add half support to LLVM (for OpenCL)	2012-05-24 15:59:06 +00:00
Attributes.cpp	switch AttrListPtr::get to take an ArrayRef, simplifying a lot of clients.	2012-05-28 01:47:44 +00:00
AutoUpgrade.cpp	revert my previous patches that introduced an additional parameter to the objectsize intrinsic.	2012-05-22 15:25:31 +00:00
BasicBlock.cpp
CMakeLists.txt
ConstantFold.cpp
ConstantFold.h
Constants.cpp
ConstantsContext.h
Core.cpp
DebugLoc.cpp
Dominators.cpp
Function.cpp	move some code around so that Verifier.cpp can get access to the intrinsic info table.	2012-05-27 18:28:35 +00:00
GCOV.cpp
Globals.cpp
GVMaterializer.cpp
InlineAsm.cpp
Instruction.cpp
Instructions.cpp	PR1255: Case Ranges	2012-05-28 12:39:09 +00:00
IntrinsicInst.cpp
IRBuilder.cpp
LeakDetector.cpp
LeaksContext.h
LLVMBuild.txt
LLVMContext.cpp
LLVMContextImpl.cpp
LLVMContextImpl.h
Makefile
Metadata.cpp
Module.cpp	simplify code.	2012-05-28 01:37:08 +00:00
Pass.cpp
PassManager.cpp
PassRegistry.cpp
PrintModulePass.cpp
SymbolTableListTraitsImpl.h
Type.cpp
Use.cpp
User.cpp
Value.cpp	Move CallbackVHs dtor inline, it can be devirtualized in many cases. Move the other virtual methods out of line as they are only called from within Value.cpp anyway.	2012-05-19 19:15:25 +00:00
ValueSymbolTable.cpp
ValueTypes.cpp
Verifier.cpp	PR1255: Case Ranges	2012-05-28 12:39:09 +00:00