On 07/09/2013 09:29 AM, Steve Ellcey wrote:
> + /* In MIPS16 mode using the $t registers for reload results in code
> + that is larger (and slightly faster) then if we do not use them so
> + if optimizing for size, do not use them. */
> + if (optimize_size)
> + {
> + fixed_regs[8] = call_used_regs[8] = 1;
> + fixed_regs[9] = call_used_regs[9] = 1;
> + fixed_regs[10] = call_used_regs[10] = 1;
> + fixed_regs[11] = call_used_regs[11] = 1;
> + fixed_regs[12] = call_used_regs[12] = 1;
> + fixed_regs[13] = call_used_regs[13] = 1;
> + fixed_regs[14] = call_used_regs[14] = 1;
> + fixed_regs[15] = call_used_regs[15] = 1;
> + }
Surely the registers are better used by LRA as spill than the stack.
Perhaps time better spent enabling LRA for the mips target?
r~
