<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Fri, Mar 18, 2016 at 2:44 PM, Francisco Jerez <span dir="ltr"><<a href="mailto:currojerez@riseup.net" target="_blank">currojerez@riseup.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">Jason Ekstrand <<a href="mailto:jason@jlekstrand.net">jason@jlekstrand.net</a>> writes:<br>
<br>
> ---<br>
>  src/compiler/nir/glsl_to_nir.cpp | 2 ++<br>
>  1 file changed, 2 insertions(+)<br>
><br>
> diff --git a/src/compiler/nir/glsl_to_nir.cpp b/src/compiler/nir/glsl_to_nir.cpp<br>
> index 613b138..f592c57 100644<br>
> --- a/src/compiler/nir/glsl_to_nir.cpp<br>
> +++ b/src/compiler/nir/glsl_to_nir.cpp<br>
> @@ -1048,6 +1048,8 @@ nir_visitor::visit(ir_assignment *ir)<br>
>  {<br>
>     unsigned num_components = ir->lhs->type->vector_elements;<br>
><br>
> +   b.exact = ir->lhs->variable_referenced()->data.invariant;<br>
> +<br>
<br>
</span>Wouldn't it make sense to set the exact flag for precise as well?<br></blockquote><div><br></div><div>Thanks!  I meant to do that but it got lost somewhere in the rebase.  I'll get it fixed up.<br><br></div><div>--Jason<br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
With that fixed:<br>
<br>
Reviewed-by: Francisco Jerez <<a href="mailto:currojerez@riseup.net">currojerez@riseup.net</a>><br>
<span class=""><br>
>     if ((ir->rhs->as_dereference() || ir->rhs->as_constant()) &&<br>
>         (ir->write_mask == (1 << num_components) - 1 || ir->write_mask == 0)) {<br>
>        /* We're doing a plain-as-can-be copy, so emit a copy_var */<br>
> --<br>
> 2.5.0.400.gff86faf<br>
><br>
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</blockquote></div><br></div></div>