[PATCH 2/2] ivopts: Revert register pressure cost when there are enough registers.

When there are enough registers, the register pressure cost is unnecessarily bumped by adding another n_cands. This behavior may result in register pressure costs for the case when there are enough registers being higher than for other cases. When there are enough registers, the register pressure

[PATCH 0/2]: Fix address cost complexity and register pressure cost calculation.

Architectures like Mips are very limited when it comes to addressing modes. Therefore, the expected behavior would be that, for the BASE + OFFSET addressing mode, complexity is lower, while, for more complex addressing modes (e.g. BASE + INDEX << SCALE), which are not supported, complexity is hi

[PATCH 1/2] ivopts: Compute complexity for unsupported addressing modes.

After f9f69dd, complexity is calculated using the valid_mem_ref_p target hook. Architectures like Mips only allow BASE + OFFSET addressing modes, which in turn prevents the calculation of complexity for other addressing modes, resulting in non-optimal candidate selection. There still is code that