Re: PATCH for review on mainline for bugzilla 25799

[Roger Sayle <roger at eyesopen dot com>]

On Tue, 17 Jan 2006, Kenneth Zadeck wrote:
> 2005-01-17  Kenneth Zadeck <zadeck@naturalbridge.com>
>
>     PR dataflow/25799
>     * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
>     Corrected confluence operator to remove bits from op2 before oring
>     with op1 rather than removing bits from op1.
>     * (df_ru_transfer_function): Corrected test on wrong bitmap which
>     caused infinite loop.
>

With Andrew Pinski's correction to the ChangeLog entry that the bugzilla
reference should be PR rtl-optimization/25799, this is OK for mainline.

I believe this is the last "correctness" related change following the
overhaul of GCC's dataflow infrastructure.  Let me know if I'm mistaken,
and I'll take a look at any other related patches awaiting review.

Roger
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