Ted Kremenek 75627d3d2e Performance optimization on ImmutableMap/ImmutableSet: ... - Use a DenseSet instead of a FoldingSet to cache canonicalized nodes. This reduces the overhead of double-hashing. - Use reference counts in ImutAVLTree to much more aggressively recover tree nodes that are no longer usable. We can generate many transient nodes while using add() and remove() on ImmutableSet/ImmutableMaps to generate a final set/map. For the clang static analyzer (the main client of these data structures), this results in a slight speedup (0.5%) when analyzing sqlite3, but much more importantly results in a 30-60% reduction in peak memory usage when the analyzer is analyzing a given function in a file. On average that's about a ** 44% reduction ** in the memory footprint of the static analyzer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120459 91177308-0d34-0410-b5e6-96231b3b80d8		2010-11-30 20:26:45 +00:00
..
ADT	Performance optimization on ImmutableMap/ImmutableSet:	2010-11-30 20:26:45 +00:00
Analysis	Change the basic block map in LoopInfo from a std::map to a DenseMap. This is a 16% speedup running loops on test-suite + SPEC2000.	2010-11-30 18:51:19 +00:00
Assembly
Bitcode	Merge System into Support.	2010-11-29 18:16:10 +00:00
CodeGen	Merge System into Support.	2010-11-29 18:16:10 +00:00
CompilerDriver	Merge System into Support.	2010-11-29 18:16:10 +00:00
Config
ExecutionEngine	Merge System into Support.	2010-11-29 18:16:10 +00:00
MC	Merge System into Support.	2010-11-29 18:16:10 +00:00
Object	Merge System into Support.	2010-11-29 18:16:10 +00:00
Support	Support/PathV2: Update comments.	2010-11-29 23:35:35 +00:00
Target	add TLI support indicating that jumps are more expensive than logical operations	2010-11-30 18:12:52 +00:00
Transforms	Second attempt at fixing the performance regressions introduced	2010-11-27 08:15:55 +00:00
AbstractTypeUser.h
Argument.h
Attributes.h
AutoUpgrade.h
BasicBlock.h	Merge System into Support.	2010-11-29 18:16:10 +00:00
CallGraphSCCPass.h
CallingConv.h
CMakeLists.txt
Constant.h
Constants.h
DerivedTypes.h	Merge System into Support.	2010-11-29 18:16:10 +00:00
Function.h
GlobalAlias.h
GlobalValue.h
GlobalVariable.h
GVMaterializer.h
InitializePasses.h	Stub out a new LiveDebugVariables pass.	2010-11-30 02:17:10 +00:00
InlineAsm.h
InstrTypes.h
Instruction.def
Instruction.h
Instructions.h	fix PR8613 - Copy constructor of SwitchInst does not call SwitchInst::init	2010-11-17 05:41:46 +00:00
IntrinsicInst.h	remove the pointless check of MemoryUseIntrinsic from	2010-11-30 02:03:47 +00:00
Intrinsics.h
Intrinsics.td	Make @llvm.invariant.start not be readonly, so that it has side-effects. This	2010-11-30 04:13:41 +00:00
IntrinsicsAlpha.td
IntrinsicsARM.td
IntrinsicsCellSPU.td
IntrinsicsPowerPC.td
IntrinsicsX86.td
IntrinsicsXCore.td
LinkAllPasses.h
LinkAllVMCore.h	Merge System into Support.	2010-11-29 18:16:10 +00:00
Linker.h
LLVMContext.h	now that AsmPrinter::EmitInlineAsm is factored right, we can eliminate the	2010-11-17 08:13:01 +00:00
Metadata.h
Module.h	Merge System into Support.	2010-11-29 18:16:10 +00:00
OperandTraits.h
Operator.h
Pass.h
PassAnalysisSupport.h
PassManager.h
PassManagers.h
PassRegistry.h
PassSupport.h	Merge System into Support.	2010-11-29 18:16:10 +00:00
SymbolTableListTraits.h
Type.h
TypeSymbolTable.h	Merge System into Support.	2010-11-29 18:16:10 +00:00
Use.h
User.h
Value.h	Factor out Instruction::isSafeToSpeculativelyExecute's code for	2010-11-11 21:23:25 +00:00
ValueSymbolTable.h	Merge System into Support.	2010-11-29 18:16:10 +00:00