[PATCH] Fix -fcrossjumping at -O1 (PR rtl-optimization/48156)

Kenneth Zadeck zadeck@naturalbridge.com
Fri Mar 18 16:35:00 GMT 2011


I could be happy with both patches.

On 03/18/2011 12:25 PM, Paolo Bonzini wrote:
> On Fri, Mar 18, 2011 at 17:23, Kenneth Zadeck<zadeck@naturalbridge.com>  wrote:
>> I believe that this is not the right way to go.
>>
>> if someone specifies -fcrossjumping, then the pass should turn on live for
>> the duration of the pass just as ifcvt does.    If they ask for crossjumping
>> you should give them crossjumping and not some crippled version of it.
> Then we should have both patches, but df_lr is not always being used
> as a fallback for df_live, and that is a bug.
>
> Paolo



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