On Thu, Oct 9, 2014 at 12:05 AM, Michael Collison
<michael.colli...@linaro.org> wrote:
>
> The CLZ_DEFINED_VALUE_AT_ZERO macro is harded to return 32. For the vector
> intrinsic vclz this is incorrect and should return the value eight. The
> CTZ_DEFINED_VALUE_AT_ZERO has the same issue.


Do you have a testcase?  I almost think you should have a testcase
which causes the constant folding.  Though I don't think there is
constant folding of the vector clz/ctz happening.

Thanks,
Andrew

>
> Tested on arm-linux-gnueabihf, arm-linux-gnueabi.
>
> 2014-10-08  Michael Collison  <michael.colli...@linaro.com>
>
>     * config/arm/arm.h (CLZ_DEFINED_VALUE_AT_ZERO) : Update
>     to support vector modes
>     (CTZ_DEFINED_VALUE_AT_ZERO): Ditto
>
> --
> Michael Collison
> Linaro Toolchain Working Group
> michael.colli...@linaro.org
>

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