llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-14 11:32:34 +00:00

History

Chris Lattner 6d9f86b773 remove a bunch of dead named arguments in input patterns, though some look dubious afaict, these are all ok. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96899 91177308-0d34-0410-b5e6-96231b3b80d8		2010-02-23 06:54:29 +00:00
..
AsmPrinter	print all the newlines at the end of instructions with	2010-02-10 00:36:00 +00:00
TargetInfo	make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.	2010-01-24 20:43:08 +00:00
Alpha.h	eliminate all the dead addSimpleCodeEmitter implementations.	2010-02-02 21:31:47 +00:00
Alpha.td
AlphaBranchSelector.cpp
AlphaCallingConv.td
AlphaCodeEmitter.cpp	move target-independent opcodes out of TargetInstrInfo	2010-02-09 19:54:29 +00:00
AlphaInstrFormats.td
AlphaInstrInfo.cpp	Remove the target hook TargetInstrInfo::BlockHasNoFallThrough in favor of	2009-12-05 00:44:40 +00:00
AlphaInstrInfo.h	Remove the target hook TargetInstrInfo::BlockHasNoFallThrough in favor of	2009-12-05 00:44:40 +00:00
AlphaInstrInfo.td	remove a bunch of dead named arguments in input patterns,	2010-02-23 06:54:29 +00:00
AlphaISelDAGToDAG.cpp	mark all the generated node predicates 'const'.	2010-02-16 07:26:36 +00:00
AlphaISelLowering.cpp	Move TLOF implementations to libCodegen to resolve layering violation.	2010-02-15 22:37:53 +00:00
AlphaISelLowering.h	Revert 95130.	2010-02-02 23:55:14 +00:00
AlphaJITInfo.cpp	Change indirect-globals to use a dedicated allocIndirectGV. This lets us	2009-12-15 22:42:46 +00:00
AlphaJITInfo.h
AlphaLLRP.cpp
AlphaMachineFunctionInfo.h
AlphaMCAsmInfo.cpp	Eliminate SetDirective, and replace it with HasSetDirective.	2010-01-26 20:40:54 +00:00
AlphaMCAsmInfo.h
AlphaRegisterInfo.cpp	Fix changes from r75027	2010-02-15 15:00:44 +00:00
AlphaRegisterInfo.h
AlphaRegisterInfo.td
AlphaRelocations.h
AlphaSchedule.td
AlphaSubtarget.cpp
AlphaSubtarget.h
AlphaTargetMachine.cpp	eliminate all the dead addSimpleCodeEmitter implementations.	2010-02-02 21:31:47 +00:00
AlphaTargetMachine.h	eliminate all the dead addSimpleCodeEmitter implementations.	2010-02-02 21:31:47 +00:00
CMakeLists.txt
Makefile	make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.	2010-01-24 20:43:08 +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