On Tue, Feb 22, 2022 at 03:15:55PM -0600, William Tambe via Gcc-help wrote: [snip] > > Without above transformation, `add %4 %7` would cause the cpu to wait > > on `div %4 %5` when it could have executed instructions that do not > > depend on the result of "div". > > How to implement above transformation such that GCC moves instructions > between a multi-cycle instruction and the next instruction that > depends on its result ? GCC has a pretty advanced instruction scheduler. You can start looking at <https://gcc.gnu.org/onlinedocs/gccint/Scheduling.html> for example? Segher
