Re: [PATCH] PHIOPT: Mark the conditional lhs and rhs as to look at to see if DCEable

On Mon, Jul 31, 2023 at 10:17 PM Andrew Pinski via Gcc-patches wrote: > > In some cases (usually dealing with bools only), there could be some > statements > left behind which are considered trivial dead. > An example is: > ``` > bool f(bool a, bool b) > { > if (!a && !b) > return 0;

[PATCH] PHIOPT: Mark the conditional lhs and rhs as to look at to see if DCEable

In some cases (usually dealing with bools only), there could be some statements left behind which are considered trivial dead. An example is: ``` bool f(bool a, bool b) { if (!a && !b) return 0; if (!a && b) return 0; if (a && !b) return 0; return 1; } ``` Wh