llvm-mirror

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History

Chris Lattner 2743ad432d Switch MSP430, CellSPU, SystemZ, Darwin/PPC, Alpha, and Sparc to EmitFunctionHeader: 7 files changed, 16 insertions(+), 210 deletions(-) llvm-svn: 94630		2010-01-27 00:17:20 +00:00
..
AsmPrinter	Switch MSP430, CellSPU, SystemZ, Darwin/PPC, Alpha, and Sparc to	2010-01-27 00:17:20 +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
Alpha.td
AlphaBranchSelector.cpp
AlphaCallingConv.td
AlphaCodeEmitter.cpp
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	Set isBarrier = 1 on return instructions, as they are control barriers.	2009-11-11 18:11:07 +00:00
AlphaISelDAGToDAG.cpp	Change SelectCode's argument from SDValue to SDNode *, to make it more	2010-01-05 01:24:18 +00:00
AlphaISelLowering.cpp	Eliminate target hook IsEligibleForTailCallOptimization.	2010-01-27 00:07:07 +00:00
AlphaISelLowering.h	Eliminate target hook IsEligibleForTailCallOptimization.	2010-01-27 00:07:07 +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	* Move stub allocation inside the JITEmitter, instead of exposing a	2009-11-23 23:35:19 +00:00
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	Make the MachineFunction argument of getFrameRegister const.	2009-11-12 21:00:03 +00:00
AlphaRegisterInfo.h	Make the MachineFunction argument of getFrameRegister const.	2009-11-12 21:00:03 +00:00
AlphaRegisterInfo.td
AlphaRelocations.h
AlphaSchedule.td
AlphaSubtarget.cpp
AlphaSubtarget.h
AlphaTargetMachine.cpp
AlphaTargetMachine.h
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