llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-14 13:07:31 +00:00

History

Bruno Cardoso Lopes ac57e6e498 Add the Object Code Emitter class. Original patch by Aaron Gray, I did some cleanup, removed some #includes and moved Object Code Emitter out-of-line. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74813 91177308-0d34-0410-b5e6-96231b3b80d8		2009-07-06 05:09:34 +00:00
..
AsmPrinter	Remove unused AsmPrinter OptLevel argument, and propogate.	2009-07-01 01:48:54 +00:00
Alpha.h	Add the Object Code Emitter class. Original patch by Aaron Gray, I did some	2009-07-06 05:09:34 +00:00
Alpha.td
AlphaBranchSelector.cpp	Tidy up several unbeseeming casts from pointer to intptr_t.	2008-09-04 17:05:41 +00:00
AlphaCodeEmitter.cpp	Add the Object Code Emitter class. Original patch by Aaron Gray, I did some	2009-07-06 05:09:34 +00:00
AlphaInstrFormats.td
AlphaInstrInfo.cpp	Silence warnings when assertions are turned off.	2009-07-03 16:03:33 +00:00
AlphaInstrInfo.h	Convert Alpha and Mips to use a MachineFunctionInfo subclass to	2009-06-03 20:30:14 +00:00
AlphaInstrInfo.td	Add an int64_t variant of abs, for host environments	2009-05-13 00:24:22 +00:00
AlphaISelDAGToDAG.cpp	Convert Alpha and Mips to use a MachineFunctionInfo subclass to	2009-06-03 20:30:14 +00:00
AlphaISelLowering.cpp	Add NumFixedArgs attribute to CallSDNode which indicates the number of fixed arguments in a vararg call.	2009-07-03 06:44:53 +00:00
AlphaISelLowering.h	Add NumFixedArgs attribute to CallSDNode which indicates the number of fixed arguments in a vararg call.	2009-07-03 06:44:53 +00:00
AlphaJITInfo.cpp	Privatize this map.	2009-06-25 18:13:04 +00:00
AlphaJITInfo.h	Privatize this map.	2009-06-25 18:13:04 +00:00
AlphaLLRP.cpp
AlphaMachineFunctionInfo.h	Add explicit keywords.	2009-06-05 23:05:51 +00:00
AlphaRegisterInfo.cpp	Committed the wrong version in my last commit.	2009-06-26 00:17:05 +00:00
AlphaRegisterInfo.h	Committed the wrong version in my last commit.	2009-06-26 00:17:05 +00:00
AlphaRegisterInfo.td
AlphaRelocations.h
AlphaSchedule.td
AlphaSubtarget.cpp
AlphaSubtarget.h	Propagate CPU string out of SubtargetFeatures	2009-05-23 19:50:50 +00:00
AlphaTargetAsmInfo.cpp
AlphaTargetAsmInfo.h
AlphaTargetMachine.cpp	Add the Object Code Emitter class. Original patch by Aaron Gray, I did some	2009-07-06 05:09:34 +00:00
AlphaTargetMachine.h	Add the Object Code Emitter class. Original patch by Aaron Gray, I did some	2009-07-06 05:09:34 +00:00
CMakeLists.txt	CMake build fixes, from Xerxes Ranby	2009-07-02 18:53:52 +00:00
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