llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-04 06:09:05 +00:00

History

Chris Lattner b23569aff0 Momentous day: remove the "O" member from AsmPrinter. Now all "asm printering" happens through MCStreamer. This also Streamerizes PIC16 debug info, which escaped my attention. This removes a leak from LLVMTargetMachine of the 'legacy' output stream. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100327 91177308-0d34-0410-b5e6-96231b3b80d8		2010-04-04 08:18:47 +00:00
..
AsmPrinter	Momentous day: remove the "O" member from AsmPrinter. Now all	2010-04-04 08:18:47 +00:00
TargetInfo
Alpha.h
Alpha.td
AlphaBranchSelector.cpp
AlphaCallingConv.td	Fix PR6444, note still doesn't compile libgcc2 all the way, but fixes that error. May not fix it in an ABI complient way. It wasn't clear what gcc does	2010-03-03 20:15:31 +00:00
AlphaCodeEmitter.cpp
AlphaInstrFormats.td	use ins/outs.	2010-03-18 20:55:18 +00:00
AlphaInstrInfo.cpp	use DebugLoc default ctor instead of DebugLoc::getUnknownLoc()	2010-04-02 20:16:16 +00:00
AlphaInstrInfo.h
AlphaInstrInfo.td	use ins/outs.	2010-03-18 20:55:18 +00:00
AlphaISelDAGToDAG.cpp	Sink InstructionSelect() out of each target into SDISel, and rename it	2010-03-02 06:34:30 +00:00
AlphaISelLowering.cpp	use DebugLoc default ctor instead of DebugLoc::getUnknownLoc()	2010-04-02 20:16:16 +00:00
AlphaISelLowering.h
AlphaJITInfo.cpp
AlphaJITInfo.h
AlphaLLRP.cpp	use DebugLoc default ctor instead of DebugLoc::getUnknownLoc()	2010-04-02 20:16:16 +00:00
AlphaMachineFunctionInfo.h
AlphaMCAsmInfo.cpp
AlphaMCAsmInfo.h
AlphaRegisterInfo.cpp	use DebugLoc default ctor instead of DebugLoc::getUnknownLoc()	2010-04-02 20:16:16 +00:00
AlphaRegisterInfo.h	Change the Value argument to eliminateFrameIndex to a type-tagged value. This	2010-03-09 21:45:49 +00:00
AlphaRegisterInfo.td
AlphaRelocations.h
AlphaSchedule.td
AlphaSubtarget.cpp
AlphaSubtarget.h
AlphaTargetMachine.cpp
AlphaTargetMachine.h
CMakeLists.txt
Makefile
README.txt

README.txt

***

add gcc builtins for alpha instructions


***

custom expand byteswap into nifty 
extract/insert/mask byte/word/longword/quadword low/high
sequences

***

see if any of the extract/insert/mask operations can be added

***

match more interesting things for cmovlbc cmovlbs (move if low bit clear/set)

***

lower srem and urem

remq(i,j):  i - (j * divq(i,j)) if j != 0
remqu(i,j): i - (j * divqu(i,j)) if j != 0
reml(i,j):  i - (j * divl(i,j)) if j != 0
remlu(i,j): i - (j * divlu(i,j)) if j != 0

***

add crazy vector instructions (MVI):

(MIN|MAX)(U|S)(B8|W4) min and max, signed and unsigned, byte and word
PKWB, UNPKBW pack/unpack word to byte
PKLB UNPKBL pack/unpack long to byte
PERR pixel error (sum accross bytes of bytewise abs(i8v8 a - i8v8 b))

cmpbytes bytewise cmpeq of i8v8 a and i8v8 b (not part of MVI extentions)

this has some good examples for other operations that can be synthesised well 
from these rather meager vector ops (such as saturating add).
http://www.alphalinux.org/docs/MVI-full.html