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Re: [PATCH] Optimize tablejumps for switch statements
- To: Roger Sayle <roger at eyesopen dot com>
- Subject: Re: [PATCH] Optimize tablejumps for switch statements
- From: Richard Henderson <rth at redhat dot com>
- Date: Wed, 24 Oct 2001 15:12:10 -0700
- Cc: gcc-patches at gcc dot gnu dot org
- References: <Pine.LNX.4.33.0110211626290.25324-100000@www.eyesopen.com>
On Wed, Oct 24, 2001 at 11:31:01AM -0600, Roger Sayle wrote:
> * stmt.c (expand_end_case): Index jumptables from zero for
> suitably small values of minval.
Applied.
> + if (! optimize_size
> + && compare_tree_int (minval, 0) > 0
> + && compare_tree_int (minval, 3) < 0
> + && compare_tree_int (maxval, 0) >= 0)
I don't think there's any need to check maxval, since
we know that maxval >= minval.
r~