[LLVMdev] Presenting Unsafe Math Flag to Optimizer

[Duncan Sands]

Hi Bill,

> The current implementation of the "allow unsafe math" option is to specify it via the TargetOptions object. However, this prevents the target-independent optimizer from using it. Are there any opinions (ha!) on how this could be achieved in a nice clean manner which doesn't require using the TargetOptions object in the optimizer?

a flag on each floating point operation, saying whether it does "exact" math or
not?

Ciao,

Duncan.