Chandler Carruth 274d377ea6 Extend the inline cost calculation to account for bonuses due to ... correlated pairs of pointer arguments at the callsite. This is designed to recognize the common C++ idiom of begin/end pointer pairs when the end pointer is a constant offset from the begin pointer. With the C-based idiom of a pointer and size, the inline cost saw the constant size calculation, and this provides the same level of information for begin/end pairs. In order to propagate this information we have to search for candidate operations on a pair of pointer function arguments (or derived from them) which would be simplified if the pointers had a known constant offset. Then the callsite analysis looks for such pointer pairs in the argument list, and applies the appropriate bonus. This helps LLVM detect that half of bounds-checked STL algorithms (such as hash_combine_range, and some hybrid sort implementations) disappear when inlined with a constant size input. However, it's not a complete fix due the inaccuracy of our cost metric for constants in general. I'm looking into that next. Benchmarks showed no significant code size change, and very minor performance changes. However, specific code such as hashing is showing significantly cleaner inlining decisions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152752 91177308-0d34-0410-b5e6-96231b3b80d8		2012-03-14 23:19:53 +00:00
..
ADT	Fixes the MSVC build.	2012-03-14 22:36:10 +00:00
Analysis	Extend the inline cost calculation to account for bonuses due to	2012-03-14 23:19:53 +00:00
Assembly
Bitcode	Enable the small vector POD optimization for BitCodeAbbrevOp.	2012-03-03 15:04:13 +00:00
CodeGen	misched: implemented a framework for top-down or bottom-up scheduling.	2012-03-14 04:00:41 +00:00
Config	Add profiling support for Intel Parallel Amplifier XE (VTune) for JITted code in LLVM.	2012-03-13 08:33:15 +00:00
DebugInfo
ExecutionEngine	Add profiling support for Intel Parallel Amplifier XE (VTune) for JITted code in LLVM.	2012-03-13 08:33:15 +00:00
MC	Shrink and reorder some fields in MCOperandInfo to fit it in 8 bytes to reduce size of static tables.	2012-03-11 01:57:56 +00:00
Object	Support reading GNU symbol versions in ELFObjectFile	2012-03-09 20:59:52 +00:00
Support	Fix warnings when building with VS11.	2012-03-11 01:20:23 +00:00
TableGen	Add Foreach Loop	2012-02-22 16:09:41 +00:00
Target	Target override to allow CodeGenPrepare to sink address operands to intrinsics in the same way it current does for loads and stores	2012-03-13 20:59:56 +00:00
Transforms	Add support for disabling llvm.lifetime intrinsics in the AlwaysInliner. These	2012-02-25 02:56:01 +00:00
Argument.h
Attributes.h
AutoUpgrade.h
BasicBlock.h
CallGraphSCCPass.h
CallingConv.h
CMakeLists.txt
Constant.h
Constants.h
DebugInfoProbe.h
DefaultPasses.h
DerivedTypes.h	Cache the sized-ness of struct types, once we reach the steady state of	2012-03-07 02:33:09 +00:00
Function.h	[Support] Drop verbose _ATTRIBUTE from LLVM_ATTRIBUTE_{READONLY,READNONE} macro	2012-03-09 16:30:33 +00:00
GlobalAlias.h
GlobalValue.h
GlobalVariable.h
GVMaterializer.h
InitializePasses.h
InlineAsm.h
InstrTypes.h
Instruction.def
Instruction.h
Instructions.h	Fixed comments for SwitchInst::addCase and for SwitchInst::removeCase.	2012-03-13 12:37:10 +00:00
IntrinsicInst.h
Intrinsics.h
Intrinsics.td
IntrinsicsARM.td
IntrinsicsCellSPU.td
IntrinsicsHexagon.td
IntrinsicsPowerPC.td
IntrinsicsPTX.td
IntrinsicsX86.td
IntrinsicsXCore.td
LinkAllPasses.h
LinkAllVMCore.h
Linker.h
LLVMContext.h
Metadata.h
Module.h	s/ModAttrBehavior/ModFlagBehavior/g to be consistent with how module flags are named elsewhere.	2012-02-16 10:28:10 +00:00
OperandTraits.h
Operator.h
Pass.h
PassAnalysisSupport.h
PassManager.h
PassManagers.h
PassRegistry.h
PassSupport.h
SymbolTableListTraits.h
Type.h
Use.h
User.h
Value.h	Extend the inline cost calculation to account for bonuses due to	2012-03-14 23:19:53 +00:00
ValueSymbolTable.h