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llvm-6502/lib/Target/Alpha
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Chris Lattner b8158acc23 Reapply my previous asmprinter changes now with more testing and two 
additional bug fixes:

1. The bug that everyone hit was a problem in the asmprinter where it
   would remove $stub but keep the L prefix on a name when emitting the
   indirect symbol.  This is easy to fix by keeping the name of the stub
   and the name of the symbol in a StringMap instead of just keeping a
   StringSet and trying to reconstruct it late.

2. There was a problem printing the personality function.  The current
   logic to print out the personality function from the DWARF information
   is a bit of a cesspool right now that duplicates a bunch of other 
   logic in the asm printer.  The short version of it is that it depends
   on emitting both the L and _ prefix for symbols (at least on darwin)
   and until I can untangle it, it is best to switch the mangler back to
   emitting both prefixes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75646 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14 18:17:16 +00:00
..
AsmPrinter Reapply my previous asmprinter changes now with more testing and two 2009-07-14 18:17:16 +00:00
Alpha.h Add the Object Code Emitter class. Original patch by Aaron Gray, I did some 2009-07-06 05:09:34 +00:00
Alpha.td
AlphaBranchSelector.cpp
AlphaCodeEmitter.cpp llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable. 2009-07-14 16:55:14 +00:00
AlphaInstrFormats.td
AlphaInstrInfo.cpp llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable. 2009-07-14 16:55:14 +00:00
AlphaInstrInfo.h Convert Alpha and Mips to use a MachineFunctionInfo subclass to 2009-06-03 20:30:14 +00:00
AlphaInstrInfo.td Add an int64_t variant of abs, for host environments 2009-05-13 00:24:22 +00:00
AlphaISelDAGToDAG.cpp llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable. 2009-07-14 16:55:14 +00:00
AlphaISelLowering.cpp llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable. 2009-07-14 16:55:14 +00:00
AlphaISelLowering.h Add NumFixedArgs attribute to CallSDNode which indicates the number of fixed arguments in a vararg call. 2009-07-03 06:44:53 +00:00
AlphaJITInfo.cpp llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable. 2009-07-14 16:55:14 +00:00
AlphaJITInfo.h Privatize this map. 2009-06-25 18:13:04 +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
AlphaRegisterInfo.cpp llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable. 2009-07-14 16:55:14 +00:00
AlphaRegisterInfo.h Committed the wrong version in my last commit. 2009-06-26 00:17:05 +00:00
AlphaRegisterInfo.td
AlphaRelocations.h
AlphaSchedule.td
AlphaSubtarget.cpp
AlphaSubtarget.h Propagate CPU string out of SubtargetFeatures 2009-05-23 19:50:50 +00:00
AlphaTargetAsmInfo.cpp Alpha always requires global relocations to be r/w regardless of PIC. 2009-03-29 17:14:14 +00:00
AlphaTargetAsmInfo.h Alpha always requires global relocations to be r/w regardless of PIC. 2009-03-29 17:14:14 +00:00
AlphaTargetMachine.cpp Add the Object Code Emitter class. Original patch by Aaron Gray, I did some 2009-07-06 05:09:34 +00:00
AlphaTargetMachine.h Add the Object Code Emitter class. Original patch by Aaron Gray, I did some 2009-07-06 05:09:34 +00:00
CMakeLists.txt CMake build fixes, from Xerxes Ranby 2009-07-02 18:53:52 +00:00
Makefile
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