llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-07-21 02:29:22 +00:00

History

Evan Cheng ce4a70bd76 Rename startFunctionStub to startGVStub since it's also used for GV non-lazy ptr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58897 91177308-0d34-0410-b5e6-96231b3b80d8		2008-11-08 08:02:53 +00:00
..
Alpha.h	Use raw_ostream throughout the AsmPrinter.	2008-08-21 00:14:44 +00:00
Alpha.td
AlphaAsmPrinter.cpp	Switch the MachineOperand accessors back to the short names like	2008-10-03 15:45:36 +00:00
AlphaBranchSelector.cpp	Tidy up several unbeseeming casts from pointer to intptr_t.	2008-09-04 17:05:41 +00:00
AlphaCodeEmitter.cpp	Switch the MachineOperand accessors back to the short names like	2008-10-03 15:45:36 +00:00
AlphaInstrFormats.td
AlphaInstrInfo.cpp	Const-ify several TargetInstrInfo methods.	2008-10-16 01:49:15 +00:00
AlphaInstrInfo.h	Const-ify several TargetInstrInfo methods.	2008-10-16 01:49:15 +00:00
AlphaInstrInfo.td	Change CALLSEQ_BEGIN and CALLSEQ_END to take TargetConstant's as	2008-10-11 22:08:30 +00:00
AlphaISelDAGToDAG.cpp	Eliminate the ISel priority queue, which used the topological order for a	2008-11-05 04:14:16 +00:00
AlphaISelLowering.cpp	Teach DAGCombine to fold constant offsets into GlobalAddress nodes,	2008-10-18 02:06:02 +00:00
AlphaISelLowering.h	Teach DAGCombine to fold constant offsets into GlobalAddress nodes,	2008-10-18 02:06:02 +00:00
AlphaJITInfo.cpp	Rename startFunctionStub to startGVStub since it's also used for GV non-lazy ptr.	2008-11-08 08:02:53 +00:00
AlphaJITInfo.h	Trim #includes.	2008-08-05 15:32:23 +00:00
AlphaLLRP.cpp	Tidy up several unbeseeming casts from pointer to intptr_t.	2008-09-04 17:05:41 +00:00
AlphaRegisterInfo.cpp	Switch the MachineOperand accessors back to the short names like	2008-10-03 15:45:36 +00:00
AlphaRegisterInfo.h
AlphaRegisterInfo.td
AlphaRelocations.h
AlphaSchedule.td
AlphaSubtarget.cpp
AlphaSubtarget.h
AlphaTargetAsmInfo.cpp	Refactor various TargetAsmInfo subclasses' TargetMachine members away	2008-11-03 18:22:42 +00:00
AlphaTargetAsmInfo.h
AlphaTargetMachine.cpp	mark some targets as experimental. Andrew, if you think that Alpha is	2008-10-16 06:16:50 +00:00
AlphaTargetMachine.h	Use raw_ostream throughout the AsmPrinter.	2008-08-21 00:14:44 +00:00
CMakeLists.txt	CMake: Builds all targets.	2008-09-26 04:40:32 +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