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llvm-6502/lib/Target/Alpha
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Chris Lattner 7c306da505 Sink InstructionSelect() out of each target into SDISel, and rename it 
DoInstructionSelection.  Inline "SelectRoot" into it from DAGISelHeader.
Sink some other stuff out of DAGISelHeader into SDISel.

Eliminate the various 'Indent' stuff from various targets, which dates
to when isel was recursive.

 17 files changed, 114 insertions(+), 430 deletions(-)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97555 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 06:34:30 +00:00
..
AsmPrinter print all the newlines at the end of instructions with 2010-02-10 00:36:00 +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 eliminate all the dead addSimpleCodeEmitter implementations. 2010-02-02 21:31:47 +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 move target-independent opcodes out of TargetInstrInfo 2010-02-09 19:54:29 +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 remove a bunch of dead named arguments in input patterns, 2010-02-23 06:54:29 +00:00
AlphaISelDAGToDAG.cpp Sink InstructionSelect() out of each target into SDISel, and rename it 2010-03-02 06:34:30 +00:00
AlphaISelLowering.cpp Move TLOF implementations to libCodegen to resolve layering violation. 2010-02-15 22:37:53 +00:00
AlphaISelLowering.h Revert 95130. 2010-02-02 23:55:14 +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 Eliminate SetDirective, and replace it with HasSetDirective. 2010-01-26 20:40:54 +00:00
AlphaMCAsmInfo.h Rename TargetAsmInfo (and its subclasses) to MCAsmInfo. 2009-08-22 20:48:53 +00:00
AlphaRegisterInfo.cpp Fix changes from r75027 2010-02-15 15:00:44 +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 eliminate all the dead addSimpleCodeEmitter implementations. 2010-02-02 21:31:47 +00:00
AlphaTargetMachine.h eliminate all the dead addSimpleCodeEmitter implementations. 2010-02-02 21:31:47 +00:00
CMakeLists.txt Normalize makefile comments and sort cmake file lists. 2009-08-31 13:05:24 +00:00
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