On Fri, Sep 22, 2017 at 1:37 PM, Bin Cheng <bin.ch...@arm.com> wrote:
> Hi,
> This is the V2 patch fixing PR82163.  It rewrites verify_loop_closed_ssa by 
> checking
> uses of all definitions inside of loop.  This gives advantage that we can 
> check loop
> closed ssa form for a specific loop, rather than for whole function.  The 
> interface
> is used in fixing this issue.
> Bootstrap and test on x86_64, is it OK?

Looks good to me.

Thanks,
Richard.

> Thanks,
> bin
> 2017-09-21  Bin Cheng  <bin.ch...@arm.com>
>
>         PR tree-optimization/82163
>         * tree-ssa-loop-manip.h (verify_loop_closed_ssa): New parameter.
>         (checking_verify_loop_closed_ssa): New parameter.
>         * tree-ssa-loop-manip.c (check_loop_closed_ssa_use): Delete.
>         (check_loop_closed_ssa_stmt): Delete.
>         (check_loop_closed_ssa_def, check_loop_closed_ssa_bb): New functions.
>         (verify_loop_closed_ssa): Check loop closed ssa form for LOOP.
>         (tree_transform_and_unroll_loop): Check loop closed ssa form only for
>         changed loops.
>
> gcc/testsuite
> 2017-09-21  Bin Cheng  <bin.ch...@arm.com>
>
>         PR tree-optimization/82163
>         * gcc.dg/tree-ssa/pr82163.c: New test.

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