llvm-6502/lib/Target/MSP430
Chris Lattner 7a2bdde0a0 Fix a ton of comment typos found by codespell. Patch by
Luis Felipe Strano Moraes!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15 05:18:47 +00:00
..
InstPrinter We need to pass the TargetMachine object to the InstPrinter if we are printing 2011-03-21 04:13:46 +00:00
TargetInfo CMake: Fix MSVS build. Although I don't know why this didn't break other build systems... 2010-09-12 18:32:57 +00:00
CMakeLists.txt Use explicit add_subdirectory's for LLVM target sublibraries instead 2011-02-20 02:55:27 +00:00
Makefile Re-apply r115363 and r115366 now that r115525 has removed the un-needed header 2010-10-05 00:34:11 +00:00
MSP430.h Add branch relaxation pass (shamelessly stolen from PPC). 2010-01-15 21:19:05 +00:00
MSP430.td Clean up asm writer usage for x86 and msp430 to flag that the writer should 2010-09-30 23:40:25 +00:00
MSP430AsmPrinter.cpp We need to pass the TargetMachine object to the InstPrinter if we are printing 2011-03-21 04:13:46 +00:00
MSP430BranchSelector.cpp tyops 2010-08-23 20:30:51 +00:00
MSP430CallingConv.td
MSP430FrameLowering.cpp Teach frame lowering to ignore debug values after the terminators. 2011-01-13 21:28:52 +00:00
MSP430FrameLowering.h Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there. 2011-01-10 12:39:04 +00:00
MSP430InstrFormats.td Replace TSFlagsFields and TSFlagsShifts with a simpler TSFlags field. 2010-04-05 03:10:20 +00:00
MSP430InstrInfo.cpp Move callee-saved regs spills / reloads to TFI 2010-11-27 23:05:03 +00:00
MSP430InstrInfo.h Move callee-saved regs spills / reloads to TFI 2010-11-27 23:05:03 +00:00
MSP430InstrInfo.td Flag -> Glue, the ongoing saga 2010-12-23 18:28:41 +00:00
MSP430ISelDAGToDAG.cpp fix a long standing wart: all the ComplexPattern's were being 2010-09-21 20:31:19 +00:00
MSP430ISelLowering.cpp Fix a ton of comment typos found by codespell. Patch by 2011-04-15 05:18:47 +00:00
MSP430ISelLowering.h Allow targets to specify a the type of the RHS of a shift parameterized on the type of the LHS. 2011-02-25 21:41:48 +00:00
MSP430MachineFunctionInfo.h Add lowering of returnaddr and frameaddr intrinsics. Shamelessly stolen from x86 :) 2009-12-07 02:28:10 +00:00
MSP430MCAsmInfo.cpp Don't pass StringRef by reference. 2010-07-14 22:38:02 +00:00
MSP430MCAsmInfo.h Don't pass StringRef by reference. 2010-07-14 22:38:02 +00:00
MSP430MCInstLower.cpp Re-apply r115363 and r115366 now that r115525 has removed the un-needed header 2010-10-05 00:34:11 +00:00
MSP430MCInstLower.h Re-apply r115363 and r115366 now that r115525 has removed the un-needed header 2010-10-05 00:34:11 +00:00
MSP430RegisterInfo.cpp Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there. 2011-01-10 12:39:04 +00:00
MSP430RegisterInfo.h Move hasFP() and few related hooks to TargetFrameInfo. 2010-11-18 21:19:35 +00:00
MSP430RegisterInfo.td Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there. 2011-01-10 12:39:04 +00:00
MSP430SelectionDAGInfo.cpp Implement a bunch more TargetSelectionDAGInfo infrastructure. 2010-05-11 17:31:57 +00:00
MSP430SelectionDAGInfo.h Implement a bunch more TargetSelectionDAGInfo infrastructure. 2010-05-11 17:31:57 +00:00
MSP430Subtarget.cpp
MSP430Subtarget.h
MSP430TargetMachine.cpp Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there. 2011-01-10 12:39:04 +00:00
MSP430TargetMachine.h Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there. 2011-01-10 12:39:04 +00:00
README.txt Some preliminary variable asmprinting 2009-11-07 17:12:58 +00:00

//===---------------------------------------------------------------------===//
// MSP430 backend.
//===---------------------------------------------------------------------===//

DISCLAIMER: Thid backend should be considered as highly experimental. I never
seen nor worked with this MCU, all information was gathered from datasheet
only. The original intention of making this backend was to write documentation
of form "How to write backend for dummies" :) Thes notes hopefully will be
available pretty soon.

Some things are incomplete / not implemented yet (this list surely is not
complete as well):

1. Verify, how stuff is handling implicit zext with 8 bit operands (this might
be modelled currently in improper way - should we need to mark the superreg as
def for every 8 bit instruction?).

2. Libcalls: multiplication, division, remainder. Note, that calling convention
for libcalls is incomptible with calling convention of libcalls of msp430-gcc
(these cannot be used though due to license restriction).

3. Implement multiplication / division by constant (dag combiner hook?).

4. Implement non-constant shifts.

5. Implement varargs stuff.

6. Verify and fix (if needed) how's stuff playing with i32 / i64.

7. Implement floating point stuff (softfp?)

8. Implement instruction encoding for (possible) direct code emission in the
future.

9. Since almost all instructions set flags - implement brcond / select in better
way (currently they emit explicit comparison).

10. Handle imm in comparisons in better way (see comment in MSP430InstrInfo.td)

11. Implement hooks for better memory op folding, etc.