llvm-6502

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

History

Chris Lattner dfab291702 split "JumpTableDirective" (an existing hack) into a PIC and nonPIC version. This allows TAI implementations to specify the directive to use based on the mode being codegen'd for. The real fix for this is to remove JumpTableDirective, but I don't feel like diving into the jumptable snarl just now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78709 91177308-0d34-0410-b5e6-96231b3b80d8		2009-08-11 20:30:58 +00:00
..
AsmPrinter	make printInstruction return void since its result is omitted. Make the	2009-08-08 01:32:19 +00:00
TargetInfo	Factor commonality in triple match routines into helper template for registering	2009-07-26 05:03:33 +00:00
Alpha.h	Add new helpers for registering targets.	2009-07-25 06:49:55 +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	r76102 added the MachineCodeEmitter::processDebugLoc call and called it from	2009-07-17 18:49:39 +00:00
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	move this fp select into a pattern	2009-08-08 12:49:07 +00:00
AlphaISelDAGToDAG.cpp	Rename MVT to EVT, in preparation for splitting SimpleValueType out into its own struct type.	2009-08-10 22:56:29 +00:00
AlphaISelLowering.cpp	Rename MVT to EVT, in preparation for splitting SimpleValueType out into its own struct type.	2009-08-10 22:56:29 +00:00
AlphaISelLowering.h	Rename MVT to EVT, in preparation for splitting SimpleValueType out into its own struct type.	2009-08-10 22:56:29 +00:00
AlphaJITInfo.cpp	llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.	2009-07-14 16:55:14 +00:00
AlphaJITInfo.h	Privatize this map.	2009-06-25 18:13:04 +00:00
AlphaLLRP.cpp	Remove non-DebugLoc versions of BuildMI from Alpha and Cell.	2009-02-13 02:30:42 +00:00
AlphaMachineFunctionInfo.h	Add explicit keywords.	2009-06-05 23:05:51 +00:00
AlphaRegisterInfo.cpp	llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.	2009-07-14 16:55:14 +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	Normalize Subtarget constructors to take a target triple string instead of	2009-08-02 22:11:08 +00:00
AlphaSubtarget.h	Normalize Subtarget constructors to take a target triple string instead of	2009-08-02 22:11:08 +00:00
AlphaTargetAsmInfo.cpp	split "JumpTableDirective" (an existing hack) into a PIC and nonPIC	2009-08-11 20:30:58 +00:00
AlphaTargetAsmInfo.h	alpha TAI doesn't need TM.	2009-08-02 04:46:05 +00:00
AlphaTargetMachine.cpp	Move most targets TargetMachine constructor to only taking a target triple.	2009-08-02 23:37:13 +00:00
AlphaTargetMachine.h	Move most targets TargetMachine constructor to only taking a target triple.	2009-08-02 23:37:13 +00:00
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