The translation from LLVM IR to generic machine code is mostly fixed. As a result, instructions can be generated that…
For translating the LLVM IR to generic machine instructions, we only need to implement how arguments and return values are…
Instruction selection via the selection DAG produces fast code, but it takes time to do so. The speed of the…
After, we define the getSubtargetImpl() method. The sub-target instance to use depends on the target-cpu and target-features function attributes. For…
The binary interface of a platform not only defines how parameters are passed. It also includes how a stack frame…
The target description captures most information about registers and instructions. To access that information, we must implement the M88kRegisterInfo and…
The return values are handled similarly. However, we must extend the target description for them. First, we need to define…
Let’s turn to another important task performed by the M88kISelLowering class. We defined the rules for the calling convention in…
Let’s implement the M88kISelLowering class, which is stored in M88kISelLowering.cpp file, first. The constructor configures the legal types and operations:…
Creating machine instructions from the IR is a very important task in the backend. One common way to implement it…