4 ms·
What do you mean by "reasonable" ? Can you give an example of code that is compiled in a more obvious, straightforward way with O1 than O0 ?
by umanwizard 8y ago
What do you mean by "reasonable" ? Can you give an example of code that is compiled in a more obvious, straightforward way with O1 than O0 ?
- loup-vaillant 8y agoMy knowledge of this is only second hand, so I don't have any specific example. I believe Chandler Carruth explains this well on one of his LLVM talks (that is, how and why the front end emits crappy intermediate code, before the optmiser kicks in).