6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-07-19 03:29:22 +00:00
Code Issues Projects Releases Wiki Activity
ddd35321fb
llvm-6502/lib/Target/Alpha
History
Devang Patel 3e15bf33e0 Use 'static const char' instead of 'static const int'. 
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36652 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-02 21:39:20 +00:00
..
.cvsignore ignore generated files 2005-09-07 23:47:44 +00:00
Alpha.h Add all that branch mangling niftiness 2006-10-31 16:49:55 +00:00
Alpha.td For PR1336: 2007-04-16 14:06:19 +00:00
AlphaAsmPrinter.cpp Removed tabs everywhere except autogenerated & external files. Add make 2007-04-16 18:10:23 +00:00
AlphaBranchSelector.cpp Use 'static const char' instead of 'static const int'. 2007-05-02 21:39:20 +00:00
AlphaCodeEmitter.cpp Use 'static const char' instead of 'static const int'. 2007-05-02 21:39:20 +00:00
AlphaInstrFormats.td Use this nifty Constraints thing and fix the inverted conditional moves 2007-04-17 04:07:59 +00:00
AlphaInstrInfo.cpp Relex assertions to account for additional implicit def / use operands. 2007-04-25 07:12:14 +00:00
AlphaInstrInfo.h Add all that branch mangling niftiness 2006-10-31 16:49:55 +00:00
AlphaInstrInfo.td Use this nifty Constraints thing and fix the inverted conditional moves 2007-04-17 04:07:59 +00:00
AlphaISelDAGToDAG.cpp Removed tabs everywhere except autogenerated & external files. Add make 2007-04-16 18:10:23 +00:00
AlphaISelLowering.cpp Removed tabs everywhere except autogenerated & external files. Add make 2007-04-16 18:10:23 +00:00
AlphaISelLowering.h switch TargetLowering::getConstraintType to take the entire constraint, 2007-03-25 02:14:49 +00:00
AlphaJITInfo.cpp What should be the last unnecessary <iostream>s in the library. 2006-12-07 22:21:48 +00:00
AlphaJITInfo.h Completely rearchitect the interface between targets and the pass manager. 2006-09-04 04:14:57 +00:00
AlphaLLRP.cpp Use 'static const char' instead of 'static const int'. 2007-05-02 21:39:20 +00:00
AlphaRegisterInfo.cpp eliminateFrameIndex() change. 2007-05-01 09:13:03 +00:00
AlphaRegisterInfo.h eliminateFrameIndex() change. 2007-05-01 09:13:03 +00:00
AlphaRegisterInfo.td Constify some methods. Patch provided by Anton Vayvod, thanks! 2006-08-17 22:00:08 +00:00
AlphaRelocations.h Patches to make the LLVM sources more -pedantic clean. Patch provided 2006-05-24 17:04:05 +00:00
AlphaSchedule.td Alpha Scheduling classes 2006-03-09 17:16:45 +00:00
AlphaSubtarget.cpp FTOIT and ITOFT are bit converts, and if we drop 21264s, are always available 2007-01-24 21:09:16 +00:00
AlphaSubtarget.h FTOIT and ITOFT are bit converts, and if we drop 21264s, are always available 2007-01-24 21:09:16 +00:00
AlphaTargetAsmInfo.cpp Simplify a bit 2006-12-07 23:55:55 +00:00
AlphaTargetAsmInfo.h Break out target asm info into separate files. 2006-09-07 22:05:02 +00:00
AlphaTargetMachine.cpp Added new method to add a "simple" code emitter. That is, to only add 2007-02-08 01:38:33 +00:00
AlphaTargetMachine.h Added new method to add a "simple" code emitter. That is, to only add 2007-02-08 01:38:33 +00:00
Makefile Autogen subtarget information from .td files. 2005-10-23 22:15:34 +00:00
README.txt Readme 2007-03-31 15:05:44 +00:00

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