[PATCH] speedup reg_overlap_mentioned_p

[Paolo Bonzini]

> One more change: make the name of the label 'recurse'.  OK with that
> change.

Since I do not have CVS, please apply it.

Paolo

2004-02-01  Paolo Bonzini  <bonzini@gnu.org>

        * rtlanal.c (reg_overlap_mentioned_p) [!ENABLE_CHECKING]:
        Don't test CONSTANT_P (x).
        (reg_overlap_mentioned_p): Merge check for STRICT_LOWPART,
        ZERO_EXTRACT, SIGN_EXTRACT with the switch statement.
        Fix misindentation.

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