Evan Cheng 9e23336d0c Experimental scheduler change to schedule / coalesce the copies added for function livein's. Take 2008-03-10-RegAllocInfLoop.ll, the schedule looks like this after these copies are inserted: ... entry: 0x12049d0, LLVM BB @0x1201fd0, ID#0: Live Ins: %EAX %EDX %ECX %reg1031<def> = MOVPC32r 0 %reg1032<def> = ADD32ri %reg1031, <es:_GLOBAL_OFFSET_TABLE_>, %EFLAGS<imp-def> %reg1028<def> = MOV32rr %EAX %reg1029<def> = MOV32rr %EDX %reg1030<def> = MOV32rr %ECX %reg1027<def> = MOV8rm %reg0, 1, %reg0, 0, Mem:LD(1,1) [0x1201910 + 0] %reg1025<def> = MOV32rr %reg1029 %reg1026<def> = MOV32rr %reg1030 %reg1024<def> = MOV32rr %reg1028 The copies unnecessarily increase register pressure and it will end up requiring a physical register to be spilled. With -schedule-livein-copies: entry: 0x12049d0, LLVM BB @0x1201fa0, ID#0: Live Ins: %EAX %EDX %ECX %reg1031<def> = MOVPC32r 0 %reg1032<def> = ADD32ri %reg1031, <es:_GLOBAL_OFFSET_TABLE_>, %EFLAGS<imp-def> %reg1024<def> = MOV32rr %EAX %reg1025<def> = MOV32rr %EDX %reg1026<def> = MOV32rr %ECX %reg1027<def> = MOV8rm %reg0, 1, %reg0, 0, Mem:LD(1,1) [0x12018e0 + 0] Much better! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48307 91177308-0d34-0410-b5e6-96231b3b80d8		2008-03-12 22:19:41 +00:00
..
ADT	Add support to APInt for shift and rotate operations with APInt	2008-02-29 01:40:47 +00:00
Analysis	Update the block cloner which fixes bugpoint on code using unwind_to (phew!)	2008-03-09 05:24:34 +00:00
Assembly
Bitcode	Add an unwind_to field to basic blocks, making them Users instead of Values.	2008-03-02 02:48:09 +00:00
CodeGen	Experimental scheduler change to schedule / coalesce the copies added for function livein's. Take 2008-03-10-RegAllocInfLoop.ll, the schedule looks like this after these copies are inserted:	2008-03-12 22:19:41 +00:00
Config
Debugger
ExecutionEngine
Support	Reimplement the parameter attributes support, phase #1. hilights:	2008-03-12 17:45:29 +00:00
System	Stub out a Path::GetMainExecutable call to find the path to the	2008-03-03 02:55:43 +00:00
Target	Use PassManagerBase instead of FunctionPassManager for functions	2008-03-11 22:29:46 +00:00
Transforms	add a pass that can extract all kinds of global values, not just functions. Update llvm-extract to use it and optionally extract a global variable if you want it too	2008-03-07 19:51:57 +00:00
AbstractTypeUser.h
Argument.h
AutoUpgrade.h
BasicBlock.h	Two things. Preserve the unwind_to when splitting a BB.	2008-03-09 05:04:48 +00:00
CallGraphSCCPass.h
CallingConv.h
Constant.h
Constants.h
DerivedTypes.h	Revert SmallVector ctor variants.	2008-03-04 21:54:56 +00:00
Function.h	Reimplement the parameter attributes support, phase #1. hilights:	2008-03-12 17:45:29 +00:00
GlobalAlias.h	Add helper for ultimate aliasee resoltion	2008-03-11 22:28:56 +00:00
GlobalValue.h
GlobalVariable.h
InlineAsm.h
InstrTypes.h
Instruction.def
Instruction.h
Instructions.h	Reimplement the parameter attributes support, phase #1. hilights:	2008-03-12 17:45:29 +00:00
IntrinsicInst.h
Intrinsics.h	Reimplement the parameter attributes support, phase #1. hilights:	2008-03-12 17:45:29 +00:00
Intrinsics.td	Fix 80 column violations.	2008-03-04 03:19:19 +00:00
IntrinsicsARM.td
IntrinsicsCellSPU.td	Final de-tabification.	2008-02-27 06:33:05 +00:00
IntrinsicsPowerPC.td
IntrinsicsX86.td
LinkAllPasses.h	Add new sretpromotion pass.	2008-03-07 21:07:34 +00:00
LinkAllVMCore.h
Linker.h
LinkTimeOptimizer.h
Module.h
ModuleProvider.h
ParameterAttributes.h	Reimplement the parameter attributes support, phase #1. hilights:	2008-03-12 17:45:29 +00:00
Pass.h	Remove unused runPass methods.	2008-03-08 01:43:56 +00:00
PassAnalysisSupport.h
PassManager.h	Give PassManager and FunctionPassManager a common base class, with	2008-03-11 16:41:42 +00:00
PassManagers.h	Remove dead code.	2008-02-27 23:33:51 +00:00
PassSupport.h
SymbolTableListTraits.h
Type.h
TypeSymbolTable.h
Use.h
User.h
Value.h	There is no killUse.	2008-03-07 22:24:41 +00:00
ValueSymbolTable.h