Re: [PATCH] Maintain single-use chains in forwprop better

2011-07-23 Thread Richard Earnshaw
On 21/07/11 12:30, Richard Guenther wrote: > > This is another place where we fail to properly keep single-use > chains by leaving around dead code. This confuses propagation > of comparisons which is restricted for non-single-uses. > > Bootstrapped and tested on x86_64-unknown-linux-gnu, applie

[PATCH] Maintain single-use chains in forwprop better

2011-07-21 Thread Richard Guenther
This is another place where we fail to properly keep single-use chains by leaving around dead code. This confuses propagation of comparisons which is restricted for non-single-uses. Bootstrapped and tested on x86_64-unknown-linux-gnu, applied to trunk. Richard. 2011-07-21 Richard Guenther