llvm-6502/lib/Target/Alpha
David Greene 8ad4c00c00 Have TableGen emit setSubgraphColor calls under control of a -gen-debug
flag.  Then in a debugger developers can set breakpoints at these calls
to see waht is about to be selected and what the resulting subgraph
looks like.  This really helps when debugging instruction selection.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58278 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-27 21:56:29 +00:00
..
Alpha.h Use raw_ostream throughout the AsmPrinter. 2008-08-21 00:14:44 +00:00
Alpha.td Remove attribution from file headers, per discussion on llvmdev. 2007-12-29 20:36:04 +00:00
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 llvm.memory.barrier, and impl for x86 and alpha 2008-02-16 01:24:58 +00:00
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 Have TableGen emit setSubgraphColor calls under control of a -gen-debug 2008-10-27 21:56:29 +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 Correlate stubs with functions in JIT: when emitting a stub, the JIT tells the memory manager which function 2008-04-16 20:46:05 +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 Move reMaterialize() from TargetRegisterInfo to TargetInstrInfo. 2008-03-31 20:40:39 +00:00
AlphaRegisterInfo.td Remove attribution from file headers, per discussion on llvmdev. 2007-12-29 20:36:04 +00:00
AlphaRelocations.h Remove attribution from file headers, per discussion on llvmdev. 2007-12-29 20:36:04 +00:00
AlphaSchedule.td Remove attribution from file headers, per discussion on llvmdev. 2007-12-29 20:36:04 +00:00
AlphaSubtarget.cpp Remove attribution from file headers, per discussion on llvmdev. 2007-12-29 20:36:04 +00:00
AlphaSubtarget.h Remove attribution from file headers, per discussion on llvmdev. 2007-12-29 20:36:04 +00:00
AlphaTargetAsmInfo.cpp Remove attribution from file headers, per discussion on llvmdev. 2007-12-29 20:36:04 +00:00
AlphaTargetAsmInfo.h Remove attribution from file headers, per discussion on llvmdev. 2007-12-29 20:36:04 +00:00
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 remove attribution from lib Makefiles. 2007-12-29 20:09:26 +00:00
README.txt Readme 2007-03-31 15:05:44 +00:00

***

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