| This is a list of possible improvements to the SSA pass of the compiler. | |
| Optimizations (better compiled code) | |
| ------------------------------------ | |
| - Reduce register pressure in scheduler | |
| - Make dead store pass inter-block | |
| - If there are a lot of MOVQ $0, ..., then load | |
| 0 into a register and use the register as the source instead. | |
| - Allow large structs to be SSAable (issue 24416) | |
| - Allow arrays of length >1 to be SSAable | |
| - If strings are being passed around without being interpreted (ptr | |
| and len fields being accessed) pass them in xmm registers? | |
| Same for interfaces? | |
| - any pointer generated by unsafe arithmetic must be non-nil? | |
| (Of course that may not be true in general, but it is for all uses | |
| in the runtime, and we can play games with unsafe.) | |
| Optimizations (better compiler) | |
| ------------------------------- | |
| - Handle signed division overflow and sign extension earlier | |
| Regalloc | |
| -------- | |
| - Make liveness analysis non-quadratic | |