On Sun, 7 Aug 2011, H.J. Lu wrote:
> Hi,
>
> opth-gen.awk has
>
> print "#define " mask name " (1 << " masknum[vname]++ ")"
>
> and int has 32bits. We should check
>
> if (masknum[var] > 32)
>
> instead of
>
> if (masknum[var] > 31)

IIUC the (int32_t) sign-bit is supposed to be reserved and this
is just a case of a missing commentarey and documentation to
that effect. (Use of .opt Var being preferred.)  Otherwise, you
can't e.g. negate that option using the -MASK trick: see the
docs.

brgds, H-P

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