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Re: [PATCH, 4.8] Backport alias patches to 4.8 branch


On Thu, 19 Feb 2015, Uros Bizjak wrote:

> Hello!
> 
> I would like to port following patches to 4.8 branch:

Ok.

Thanks,
Richard.

> 2014-11-05  Uros Bizjak  <ubizjak@gmail.com>
> 
>     Backport from mainline
>      2015-01-22 Wei Mi <wmi@google.com>
> 
>     PR rtl-optimization/64557
>     * dse.c (record_store): Call get_addr for mem_addr.
>     (check_mem_read_rtx): Likewise.
> 
>     Backport from mainline
>     2014-10-20  Uros Bizjak  <ubizjak@gmail.com>
> 
>     * varasm.c (const_alias_set): Remove.
>     (init_varasm_once): Remove initialization of const_alias_set.
>     (build_constant_desc): Do not set alias set to const_alias_set.
> 
>     Backport from mainline
>     2014-10-14  Uros Bizjak  <ubizjak@gmail.com>
> 
>     PR rtl-optimization/63475
>     * alias.c (true_dependence_1): Always use get_addr to extract
>     true address operands from x_addr and mem_addr.  Use extracted
>     address operands to check for references with alignment ANDs.
>     Use extracted address operands with find_base_term and
>     base_alias_check. For noncanonicalized operands call canon_rtx with
>     extracted address operand.
>     (write_dependence_1): Ditto.
>     (may_alias_p): Ditto.  Remove unused calls to canon_rtx.
> 
>     Backport from mainline
>     2014-10-10  Uros Bizjak  <ubizjak@gmail.com>
> 
>     PR rtl-optimization/63483
>     * alias.c (true_dependence_1): Do not exit early for MEM_READONLY_P
>     references when alignment ANDs are involved.
>     (write_dependence_p): Ditto.
>     (may_alias_p): Ditto.
> 
>     Backport from mainline
>     2013-03-26  Richard Biener  <rguenther@suse.de>
> 
>     * alias.c (find_base_term): Avoid redundant and not used recursion.
>     (base_alias_check): Get the initial base term from the caller.
>     (true_dependence_1): Compute and pass base terms to base_alias_check.
>     (write_dependence_p): Likewise.
>     (may_alias_p): Likewise.
> 
> Patches were bootstrapped and regression tested together with
> bootstrap fixing patch [1] on alpha-linux-gnu and x86_64-linux-gnu
> {,-m32}. These patches fix the same libgfortran failures as on
> mainline and 4.9 (all these patches are already present or backported
> to 4.9 branch).
> 
> The results for alpha-linux-gnu are at [2]
> 
> [1] https://gcc.gnu.org/ml/gcc-patches/2015-02/msg01127.html
> [2] https://gcc.gnu.org/ml/gcc-testresults/2015-02/msg02244.html
> 
> OK for 4.8 branch?
> 
> Uros.
> 

-- 
Richard Biener <rguenther@suse.de>
SUSE LINUX GmbH, GF: Felix Imendoerffer, Jane Smithard, Jennifer Guild,
Dilip Upmanyu, Graham Norton HRB 21284 (AG Nuernberg)


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