llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-04 22:07:27 +00:00

History

Owen Anderson eed707b1e6 Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77011 91177308-0d34-0410-b5e6-96231b3b80d8		2009-07-24 23:12:02 +00:00
..
AsmPrinter	make AsmPrinter::doFinalization iterate over the global variables	2009-07-21 18:38:57 +00:00
TargetInfo	Add dependencies from TargetInfo onto .td generation.	2009-07-19 00:21:12 +00:00
Alpha.h	Put Target definitions inside Target specific header, and llvm namespace.	2009-07-18 23:03:22 +00:00
Alpha.td	Switch Alpha over to the new call lowering style. New code mostly	2009-07-19 01:11:32 +00:00
AlphaBranchSelector.cpp
AlphaCallingConv.td	Switch Alpha over to the new call lowering style. New code mostly	2009-07-19 01:11:32 +00:00
AlphaCodeEmitter.cpp
AlphaInstrFormats.td
AlphaInstrInfo.cpp	Remove unused member functions.	2009-07-24 07:43:59 +00:00
AlphaInstrInfo.h	Remove unused member functions.	2009-07-24 07:43:59 +00:00
AlphaInstrInfo.td
AlphaISelDAGToDAG.cpp	Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come.	2009-07-24 23:12:02 +00:00
AlphaISelLowering.cpp	Get rid of the Pass+Context magic.	2009-07-22 00:24:57 +00:00
AlphaISelLowering.h	Switch Alpha over to the new call lowering style. New code mostly	2009-07-19 01:11:32 +00:00
AlphaJITInfo.cpp
AlphaJITInfo.h
AlphaLLRP.cpp
AlphaMachineFunctionInfo.h
AlphaRegisterInfo.cpp
AlphaRegisterInfo.h
AlphaRegisterInfo.td
AlphaRelocations.h
AlphaSchedule.td
AlphaSubtarget.cpp
AlphaSubtarget.h
AlphaTargetAsmInfo.cpp	alpha doesn't need to redefine this: it only supports PIC codegen anyway.	2009-07-21 23:41:35 +00:00
AlphaTargetAsmInfo.h	alpha doesn't need to redefine this: it only supports PIC codegen anyway.	2009-07-21 23:41:35 +00:00
AlphaTargetMachine.cpp	Put Target definitions inside Target specific header, and llvm namespace.	2009-07-18 23:03:22 +00:00
AlphaTargetMachine.h
CMakeLists.txt	Unbreak build	2009-07-19 01:33:04 +00:00
Makefile	Unbreak build	2009-07-19 01:33:04 +00:00
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