mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 04:30:12 +00:00
4ebc5916e9
LLVM*AsmPrinter. GenLibDeps.pl fails to detect vtable references. As this is the only referenced symbol from LLVM*Desc to LLVM*AsmPrinter on optimized builds, the algorithm that creates the list of libraries to be linked into tools doesn't know about the dependency and sometimes places the libraries on the wrong order, yielding error messages like this: ../../lib/libLLVMARMDesc.a(ARMMCTargetDesc.cpp.o): In function `llvm::ARMInstPrinter::ARMInstPrinter(llvm::MCAsmInfo const&)': ARMMCTargetDesc.cpp:(.text._ZN4llvm14ARMInstPrinterC1ERKNS_9MCAsmInfoE [llvm::ARMInstPrinter::ARMInstPrinter(llvm::MCAsmInfo const&)]+0x2a): undefined reference to `vtable for llvm::ARMInstPrinter' git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136328 91177308-0d34-0410-b5e6-96231b3b80d8 |
||
|---|---|---|
| .. | ||
| InstPrinter | ||
| MCTargetDesc | ||
| TargetInfo | ||
| CMakeLists.txt | ||
| Makefile | ||
| MSP430.h | ||
| MSP430.td | ||
| MSP430AsmPrinter.cpp | ||
| MSP430BranchSelector.cpp | ||
| MSP430CallingConv.td | ||
| MSP430FrameLowering.cpp | ||
| MSP430FrameLowering.h | ||
| MSP430InstrFormats.td | ||
| MSP430InstrInfo.cpp | ||
| MSP430InstrInfo.h | ||
| MSP430InstrInfo.td | ||
| MSP430ISelDAGToDAG.cpp | ||
| MSP430ISelLowering.cpp | ||
| MSP430ISelLowering.h | ||
| MSP430MachineFunctionInfo.h | ||
| MSP430MCInstLower.cpp | ||
| MSP430MCInstLower.h | ||
| MSP430RegisterInfo.cpp | ||
| MSP430RegisterInfo.h | ||
| MSP430RegisterInfo.td | ||
| MSP430SelectionDAGInfo.cpp | ||
| MSP430SelectionDAGInfo.h | ||
| MSP430Subtarget.cpp | ||
| MSP430Subtarget.h | ||
| MSP430TargetMachine.cpp | ||
| MSP430TargetMachine.h | ||
| README.txt | ||
//===---------------------------------------------------------------------===// // 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.