[LLVMdev] X + 0.0

[Jochen Wilhelmy]

> Keeping it out of the mid-level optimizers is "by design".  When we tackle this, we should do it right, by making the flags per-instruction.
>    
But at least ist it planned for some time in the future?
then i can "survive" with a patch until then.

I wonder why these optimizations can be done in the mid-level and 
additionaly in the backend.
as a non-compiler-guru i see redundancy there. perhaps it is possible to 
write a "loop back"
backend that outputs llvm ir again so that the optimizations need to be 
implemented only once.

-Jochen