llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-08-26 23:29:22 +00:00

History

Chris Lattner cee63322ea Eliminate SetDirective, and replace it with HasSetDirective. Default HasSetDirective to true, since most targets have it. The targets that claim to not have it probably do, or it is spelled differently. These include Blackfin, Mips, Alpha, and PIC16. All of these except pic16 are normal ELF targets, so they almost certainly have it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94585 91177308-0d34-0410-b5e6-96231b3b80d8		2010-01-26 20:40:54 +00:00
..
AsmPrinter	add a new MachineBasicBlock::getSymbol method, replacing	2010-01-26 04:55:51 +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	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	eliminate the TargetLowering::UsesGlobalOffsetTable bool, which is	2010-01-26 06:53:37 +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	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	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	make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.	2010-01-24 20:43:08 +00:00
README.txt	Readme	2007-03-31 15:05:44 +00:00

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