Reed Kotler 74adad6de8 This is for an experimental option -mips-os16. The idea is to compile all ... Mips32 code as Mips16 unless it can't be compiled as Mips 16. For now this would happen as long as floating point instructions are not needed. Probably it would also make sense to compile as mips32 if atomic operations are needed too. There may be other cases too. A module pass prescans the IR and adds the mips16 or nomips16 attribute to functions depending on the functions needs. Mips 16 mode can result in a 40% code compression by utililizing 16 bit encoding of many instructions. The hope is for this to replace the traditional gcc way of dealing with Mips16 code using floating point which involves essentially using soft float but with a library implemented using mips32 floating point. This gcc method also requires creating stubs so that Mips32 code can interact with these Mips 16 functions that have floating point needs. My conjecture is that in reality this traditional gcc method would never win over this new method. I will be implementing the traditional gcc method also. Some of it is already done but I needed to do the stubs to finish the work and those required this mips16/32 mixed mode capability. I have more ideas for to make this new method much better and I think the old method will just live in llvm for anyone that needs the backward compatibility but I don't for what reason that would be needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179185 91177308-0d34-0410-b5e6-96231b3b80d8		2013-04-10 16:58:04 +00:00
..
AsmParser
Disassembler	[mips] Fix DSP instructions to have explicit accumulator register operands.	2013-03-30 01:58:00 +00:00
InstPrinter
MCTargetDesc
TargetInfo
CMakeLists.txt	This is for an experimental option -mips-os16. The idea is to compile all	2013-04-10 16:58:04 +00:00
LLVMBuild.txt
Makefile
Mips16FrameLowering.cpp
Mips16FrameLowering.h
Mips16InstrFormats.td
Mips16InstrInfo.cpp
Mips16InstrInfo.h
Mips16InstrInfo.td	[mips] Fix definitions of multiply, multiply-add/sub and divide instructions.	2013-03-30 01:36:35 +00:00
Mips16ISelDAGToDAG.cpp	This patch enables llvm to switch between compiling for mips32/mips64	2013-04-09 19:46:01 +00:00
Mips16ISelDAGToDAG.h	This patch enables llvm to switch between compiling for mips32/mips64	2013-04-09 19:46:01 +00:00
Mips16ISelLowering.cpp
Mips16ISelLowering.h
Mips16RegisterInfo.cpp	[mips] Define a function which returns the GPR register class.	2013-03-29 19:17:42 +00:00
Mips16RegisterInfo.h	[mips] Define a function which returns the GPR register class.	2013-03-29 19:17:42 +00:00
Mips64InstrInfo.td	[mips] Fix definitions of multiply, multiply-add/sub and divide instructions.	2013-03-30 01:36:35 +00:00
Mips.h
Mips.td
MipsAnalyzeImmediate.cpp
MipsAnalyzeImmediate.h
MipsAsmPrinter.cpp	Mips specific inline asm operand modifier 'D'	2013-04-09 23:19:50 +00:00
MipsAsmPrinter.h
MipsCallingConv.td
MipsCodeEmitter.cpp	[mips] Expand pseudo multiply/divide instructions in MipsCodeEmitter.cpp.	2013-04-02 22:53:58 +00:00
MipsCondMov.td
MipsConstantIslandPass.cpp	This patch enables llvm to switch between compiling for mips32/mips64	2013-04-09 19:46:01 +00:00
MipsDelaySlotFiller.cpp
MipsDSPInstrFormats.td
MipsDSPInstrInfo.td	[mips] Add patterns for DSP indexed load instructions.	2013-03-30 02:14:45 +00:00
MipsFrameLowering.cpp
MipsFrameLowering.h
MipsInstrFormats.td
MipsInstrFPU.td	[mips] Define reg+imm load/store pattern templates.	2013-03-30 02:01:48 +00:00
MipsInstrInfo.cpp
MipsInstrInfo.h
MipsInstrInfo.td	[mips] Add patterns for DSP indexed load instructions.	2013-03-30 02:14:45 +00:00
MipsISelDAGToDAG.cpp
MipsISelDAGToDAG.h
MipsISelLowering.cpp	[mips] Fix DSP instructions to have explicit accumulator register operands.	2013-03-30 01:58:00 +00:00
MipsISelLowering.h	[mips] Add mips-specific nodes which will be used to select multiply and divide	2013-03-30 01:14:04 +00:00
MipsJITInfo.cpp
MipsJITInfo.h
MipsLongBranch.cpp	This patch enables llvm to switch between compiling for mips32/mips64	2013-04-09 19:46:01 +00:00
MipsMachineFunction.cpp
MipsMachineFunction.h
MipsMCInstLower.cpp
MipsMCInstLower.h
MipsModuleISelDAGToDAG.cpp	This patch enables llvm to switch between compiling for mips32/mips64	2013-04-09 19:46:01 +00:00
MipsModuleISelDAGToDAG.h	This patch enables llvm to switch between compiling for mips32/mips64	2013-04-09 19:46:01 +00:00
MipsOs16.cpp	This is for an experimental option -mips-os16. The idea is to compile all	2013-04-10 16:58:04 +00:00
MipsOs16.h	This is for an experimental option -mips-os16. The idea is to compile all	2013-04-10 16:58:04 +00:00
MipsRegisterInfo.cpp
MipsRegisterInfo.h	[mips] Define a function which returns the GPR register class.	2013-03-29 19:17:42 +00:00
MipsRegisterInfo.td
MipsRelocations.h
MipsSchedule.td
MipsSEFrameLowering.cpp	[mips] Expand pseudo load, store and copy instructions right before	2013-03-30 01:04:11 +00:00
MipsSEFrameLowering.h
MipsSEInstrInfo.cpp	[mips] Small update to the implementation of eh.return for Mips.	2013-04-02 23:02:07 +00:00
MipsSEInstrInfo.h
MipsSEISelDAGToDAG.cpp	This patch enables llvm to switch between compiling for mips32/mips64	2013-04-09 19:46:01 +00:00
MipsSEISelDAGToDAG.h	This patch enables llvm to switch between compiling for mips32/mips64	2013-04-09 19:46:01 +00:00
MipsSEISelLowering.cpp	This patch enables llvm to switch between compiling for mips32/mips64	2013-04-09 19:46:01 +00:00
MipsSEISelLowering.h	[mips] Move the code which does dag-combine for multiply-add/sub nodes to	2013-03-30 01:42:24 +00:00
MipsSelectionDAGInfo.cpp
MipsSelectionDAGInfo.h
MipsSERegisterInfo.cpp	[mips] Define a function which returns the GPR register class.	2013-03-29 19:17:42 +00:00
MipsSERegisterInfo.h	[mips] Define a function which returns the GPR register class.	2013-03-29 19:17:42 +00:00
MipsSubtarget.cpp	This is for an experimental option -mips-os16. The idea is to compile all	2013-04-10 16:58:04 +00:00
MipsSubtarget.h	This is for an experimental option -mips-os16. The idea is to compile all	2013-04-10 16:58:04 +00:00
MipsTargetMachine.cpp	This is for an experimental option -mips-os16. The idea is to compile all	2013-04-10 16:58:04 +00:00
MipsTargetMachine.h	This patch enables llvm to switch between compiling for mips32/mips64	2013-04-09 19:46:01 +00:00
MipsTargetObjectFile.cpp
MipsTargetObjectFile.h