llvm-6502/lib/Target/Alpha
Chris Lattner 74bfe21b50 Now that we have everything nicely factored (e.g. asmprinter is not
doing global variable classification anymore) and hookized, sink almost
all target targets global variable emission code into AsmPrinter and out
of each target.

Some notes:

1. PIC16 does completely custom and crazy stuff, so it is not changed.
2. XCore has some custom handling for extra directives.  I'll look at it next.
3. This switches linux/ppc to use .globl instead of .global.  If .globl is
   actually wrong, let me know and I'll fix it.
4. This makes linux/ppc get a lot of random cases right which were obviously
   wrong before, it is probably now a bit healthier.
5. Blackfin will probably start getting .comm and other things that it didn't
   before.  If this is undesirable, it should explicitly opt out of these
   things by clearing the relevant fields of MCAsmInfo.

This leads to a nice diffstat:
 14 files changed, 127 insertions(+), 830 deletions(-)




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93858 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19 05:38:33 +00:00
..
AsmPrinter Now that we have everything nicely factored (e.g. asmprinter is not 2010-01-19 05:38:33 +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 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