On 12/7/2011 2:36 PM, David Brown wrote: \
I guess experiences vary. As I said, I find debugging easier with -O1 - but maybe that's because most of my work is on embedded targets, which usually means RISC cpus with plenty of registers. The unoptimised code for these is usually totally incomprehensible, and the target speed is several times slower, because of all the extra work done moving data onto and off from the stack.
Sure, if you are memory constrained, then -O0 is a big problem, and I agree that reading -O1 machine code is much easier than reading -O0 code, but if you are just doing source level debugging in an environment with lots of space and CPU power to spare, -O0 is much more convenient. The worst thing for me about -O1 is arguments disappearing in the trace back, that's really a deal breaker.
