llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-13 20:32:21 +00:00

History

Dan Gohman 533297b58d Rename usesCustomDAGSchedInserter to usesCustomInserter, and update a bunch of associated comments, because it doesn't have anything to do with DAGs or scheduling. This is another step in decoupling MachineInstr emitting from scheduling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85517 91177308-0d34-0410-b5e6-96231b3b80d8		2009-10-29 18:10:34 +00:00
..
AsmPrinter	Remove includes of Support/Compiler.h that are no longer needed after the	2009-10-25 06:57:41 +00:00
TargetInfo	Normalize makefile comments and sort cmake file lists.	2009-08-31 13:05:24 +00:00
Alpha.h
Alpha.td
AlphaBranchSelector.cpp	Remove includes of Support/Compiler.h that are no longer needed after the	2009-10-25 06:57:41 +00:00
AlphaCallingConv.td
AlphaCodeEmitter.cpp	Remove includes of Support/Compiler.h that are no longer needed after the	2009-10-25 06:57:41 +00:00
AlphaInstrFormats.td
AlphaInstrInfo.cpp
AlphaInstrInfo.h
AlphaInstrInfo.td	Rename usesCustomDAGSchedInserter to usesCustomInserter, and update a	2009-10-29 18:10:34 +00:00
AlphaISelDAGToDAG.cpp	Rename getTargetNode to getMachineNode, for consistency with the	2009-09-25 18:54:59 +00:00
AlphaISelLowering.cpp	Add a second ValueType argument to isFPImmLegal.	2009-10-28 01:43:28 +00:00
AlphaISelLowering.h	Add a second ValueType argument to isFPImmLegal.	2009-10-28 01:43:28 +00:00
AlphaJITInfo.cpp	remove the last uses of Config/alloca.h	2009-08-23 22:57:38 +00:00
AlphaJITInfo.h
AlphaLLRP.cpp
AlphaMachineFunctionInfo.h
AlphaMCAsmInfo.cpp	Rename TargetAsmInfo (and its subclasses) to MCAsmInfo.	2009-08-22 20:48:53 +00:00
AlphaMCAsmInfo.h	Rename TargetAsmInfo (and its subclasses) to MCAsmInfo.	2009-08-22 20:48:53 +00:00
AlphaRegisterInfo.cpp	Add register-reuse to frame-index register scavenging. When a target uses	2009-10-07 17:12:56 +00:00
AlphaRegisterInfo.h	Add register-reuse to frame-index register scavenging. When a target uses	2009-10-07 17:12:56 +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
AlphaTargetMachine.cpp	Rename TargetAsmInfo (and its subclasses) to MCAsmInfo.	2009-08-22 20:48:53 +00:00
AlphaTargetMachine.h	Change TargetAsmInfo to be constructed via TargetRegistry from a Target+Triple	2009-08-12 07:22:17 +00:00
CMakeLists.txt	Normalize makefile comments and sort cmake file lists.	2009-08-31 13:05:24 +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