| 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 |
