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History

Bill Wendling fdd5badace Update comments to make it clear that the function alignment is the Log2 of the bytes and not bytes. llvm-svn: 74624		2009-07-01 18:50:55 +00:00
..
AsmPrinter	Remove unused AsmPrinter OptLevel argument, and propogate.	2009-07-01 01:48:54 +00:00
Alpha.h	Remove unused AsmPrinter OptLevel argument, and propogate.	2009-07-01 01:48:54 +00:00
Alpha.td
AlphaBranchSelector.cpp
AlphaCodeEmitter.cpp
AlphaInstrFormats.td
AlphaInstrInfo.cpp	Handle IMPLICIT_DEF with isUndef operand marker, part 2. This patch moves the code to annotate machineoperands to LiveIntervalAnalysis. It also add markers for implicit_def that define physical registers. The rest, is just a lot of details.	2009-07-01 01:59:31 +00:00
AlphaInstrInfo.h
AlphaInstrInfo.td
AlphaISelDAGToDAG.cpp
AlphaISelLowering.cpp	Update comments to make it clear that the function alignment is the Log2 of the	2009-07-01 18:50:55 +00:00
AlphaISelLowering.h	Update comments to make it clear that the function alignment is the Log2 of the	2009-07-01 18:50:55 +00:00
AlphaJITInfo.cpp
AlphaJITInfo.h
AlphaLLRP.cpp
AlphaMachineFunctionInfo.h
AlphaRegisterInfo.cpp
AlphaRegisterInfo.h
AlphaRegisterInfo.td
AlphaRelocations.h
AlphaSchedule.td
AlphaSubtarget.cpp
AlphaSubtarget.h
AlphaTargetAsmInfo.cpp
AlphaTargetAsmInfo.h
AlphaTargetMachine.cpp	Remove unused AsmPrinter OptLevel argument, and propogate.	2009-07-01 01:48:54 +00:00
AlphaTargetMachine.h	Remove unused AsmPrinter OptLevel argument, and propogate.	2009-07-01 01:48:54 +00:00
CMakeLists.txt
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