Hello all, I am working for a private GCC target. The target has 4 registers, each 32 bits reserved for arguments. When passing arguments depending on the type of the argument either registers or stack + registers will be used Sometimes the arguments will be split between a memory location and the register.Consider the following function call
fun(int k, long long j, long long m); In the above case k and j will be passed through registers and m will be passed through register and stack, as all the other registers are used by the arguments k and j. In this case compiler is splitting the values on its own. But due to the restriction placed by load/store operation for the target, the splitting has to be modified according to the target. Is there any target hook that will help me to do it? Or can i write a pattern in the md file that can be used for this purpose. Is there any other target that does similar to this? Thanks for your time, Regards, Shafi.
