This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: Delay branch scheduling vs. the CFG

On Sunday 13 November 2005 22:02, Jeffrey A Law wrote:
> No great insights on how to make dbr_schedule CFG aware -- just
> remember that a filled delay slot can represent 3 different cases:
>
>   1. An extension of the block containing the sequence.
>
>   2. An extension of the block at the target of a branch.
>
>   3. An extension of the fall-thru block.
>
>   4. An entirely new basic block on its own.

When can option 4 happen??

Gr.
Steven
Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]