Possible bug in tree-vrp.c:vrp_visit_phi_node

Diego Novillo dnovillo@redhat.com
Thu Sep 8 15:33:00 GMT 2005


On 09/07/05 16:18, Jeffrey A Law wrote:

>Are you getting something different?
>  
>
We'd probably trigger a problem if

    lhs_vr = [0, max]
    vr_result = ~[max, max]

in that case, the code at the end of vrp_visit_phi_node would 
erroneously set VR_RESULT to ~[-INF, max], which I can see causing problems.



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