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Hello, I am writing an LLVM backend that generates byte code for a custom virtual machine. Standard function calls are lowered to a simple CALL $offsetInByteCode This works fine so far using the standard machinery of LLVM. But some functions are not implemented in byte code, but delegated to native implementations within the VM. Calls to these functions use a non-standard calling convention and should be lowered to another opcode: CALL_NATIVE $functionI...

...9:56 AM > To: llvmdev at cs.uiuc.edu > Subject: [LLVMdev] LLVM backend: Treat some function calls specially > > Hello, > > I am writing an LLVM backend that generates byte code for a custom > virtual > machine. Standard function calls are lowered to a simple > CALL $offsetInByteCode > This works fine so far using the standard machinery of LLVM. But some > functions are not implemented in byte code, but delegated to native > implementations within the VM. Calls to these functions use a non- > standard > calling convention and should be lowered to another opcode:...