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llvm-6502/lib/Target/Alpha
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Dan Gohman eeb3a00b84 Change SelectCode's argument from SDValue to SDNode *, to make it more 
clear what information these functions are actually using.

This is also a micro-optimization, as passing a SDNode * around is
simpler than passing a { SDNode *, int } by value or reference.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92564 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:24:18 +00:00
..
AsmPrinter Move DebugInfo checks into EmitComments and remove them from 2009-11-13 21:34:57 +00:00
TargetInfo Normalize makefile comments and sort cmake file lists. 2009-08-31 13:05:24 +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 Remove includes of Support/Compiler.h that are no longer needed after the 2009-10-25 06:57:41 +00:00
AlphaCallingConv.td Switch Alpha over to the new call lowering style. New code mostly 2009-07-19 01:11:32 +00:00
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 Rename isSimpleLoad to canFoldAsLoad, to better reflect its meaning. 2008-12-03 18:15:48 +00:00
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 Remove dead variable. 2009-12-28 02:00:30 +00:00
AlphaISelLowering.h Add a second ValueType argument to isFPImmLegal. 2009-10-28 01:43:28 +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 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
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 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 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 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 indicate what the native integer types for the target are. 2009-11-07 19:07:32 +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 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