[patch] for pr 32160

[Richard Guenther]

On 5/31/07, Zdenek Dvorak <rakdver@kam.mff.cuni.cz> wrote:
> Hello,
>
> when predictive commoning creates a temporary variable with complex
> type, it needs to mark it with DECL_GIMPLE_REG_P, otherwise we ICE
> in verify_ssa (as it is considered to be virtual operand).
>
> Bootstrapped & regtested on x86_64.

This is ok.

Thanks,
Richard.

> Zdenek
>
>         PR tree-optimization/32160
>         * tree-predcom.c (predcom_tmp_var): New function.  Mark created
>         variable as gimple reg.
>         (initialize_root_vars, initialize_root_vars_lm): Use predcom_tmp_var.
>
>         * gfortran.dg/predcom-1.f: New test.