search for: pcrelativewrapp

...ve addressing, via an immediate offset from the thread's DP (data pointer) register or via an immediate offset from the thread's CP (constant pool) register. When lowering a global address to a target global address XCoreISelLowering wraps the tglobaladdress node with one of three wrappers (PCRelativeWrapper, DPRelativeWrapper, CPRelativeWrapper) based on properties of the global (is it a function, is it constant, etc) . The wrapper is used in patterns in XCoreInstrInfo.td to ensure the right instruction is selected to access the global (for example to get the address of the global into a register t...

Hello, I'm considering creating an LLVM backend for a 16 bit processor and modelling it around the (experimental) MSP430 back end. When reviewing MSP430InstrInfo.td I see def MSP430Wrapper : SDNode<"MSP430ISD::Wrapper", SDT_MSP430Wrapper>; and can see in MSP430ISelLowering.cpp that ISD::GlobalAddress: ISD::BlockAddress: ISD::ExternalSymbol all get lowered to

...ve addressing, via an immediate offset from the thread's DP (data pointer) register or via an immediate offset from the thread's CP (constant pool) register. When lowering a global address to a target global address XCoreISelLowering wraps the tglobaladdress node with one of three wrappers (PCRelativeWrapper, DPRelativeWrapper, CPRelativeWrapper) based on properties of the global (is it a function, is it constant, etc) . > > The wrapper is used in patterns in XCoreInstrInfo.td to ensure the right instruction is selected to access the global (for example to get the address of the global into a r...