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...th 1" will work, but for second assigned :OR with 2" will not work. I suspect that llc is assuming that HL will contain 8 (that's the start) and or-ing 8 with 1 or with 2 is ok. But my HL has also added SP to it. This is how my ISD::FrameIndex instruction look like: def addHLdisp : Z80Instr<(outs HL16:$dst), (ins i16imm:$disp, GPR16:$src), "ld $dst, $disp\n\tadd $dst,$src", [(set HL16:$dst, (add GPR16:$src, (i16 imm:$disp)))]>; So it say that HL16:$dst wich is only HL register, will be changed. I also tried to change it to <(outs HL16:$dst), (ins i16imm:$disp, SP...

...assigned :OR with 2" will not > work. > > I suspect that llc is assuming that HL will contain 8 (that's the start) > and or-ing 8 with 1 or with 2 is ok. > But my HL has also added SP to it. > This is how my ISD::FrameIndex instruction look like: > > def addHLdisp : Z80Instr<(outs HL16:$dst), (ins i16imm:$disp, GPR16:$src), > "ld $dst, $disp\n\tadd $dst,$src", > [(set HL16:$dst, (add GPR16:$src, (i16 imm:$disp)))]>; > > So it say that HL16:$dst wich is only HL register, will be changed. > I also tried to change it to > <(outs HL16:$...

...ot >> work. >> >> I suspect that llc is assuming that HL will contain 8 (that's the start) >> and or-ing 8 with 1 or with 2 is ok. >> But my HL has also added SP to it. >> This is how my ISD::FrameIndex instruction look like: >> >> def addHLdisp : Z80Instr<(outs HL16:$dst), (ins i16imm:$disp, GPR16:$src), >> "ld $dst, $disp\n\tadd $dst,$src", >> [(set HL16:$dst, (add GPR16:$src, (i16 imm:$disp)))]>; >> >> So it say that HL16:$dst wich is only HL register, will be changed. >> I also tried to change it to &...

...;viewGraph(). Maybe that gives you an idea where the problem could be. Cheers, Jonas Am 16.04.2012 um 12:51 schrieb Peter Hanzel: > Hello. > > I am playing with LLVM and trying to create Zilog Z80 Backend. > I have succesfully created basic infrastructure and now trying to extend Z80InstrInfo.td to handle more and more C code. > I have done some work with FrameIndex and now I am stuck with assert. > > llc: SelectionDAG.cpp:645: bool llvm::SelectionDAG::RemoveNodeFromCSEMaps(llvm::SDNode*): Assertion `N->getOpcode() != ISD::EntryToken && "EntryToken in CSEMa...