On 09/15/2015 10:44 PM, Jason Ekstrand wrote:
> The provided indices have the very nice property that if A dominates B then
> A->index <= B->index. We should document that somewhere.
>
> Reviewed-by: Kenneth Graunke <kenn...@whitecape.org>
> ---
> src/glsl/nir/nir.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/src/glsl/nir/nir.c b/src/glsl/nir/nir.c
> index 1ff8f21..23071ef 100644
> --- a/src/glsl/nir/nir.c
> +++ b/src/glsl/nir/nir.c
> @@ -1427,6 +1427,10 @@ index_ssa_block(nir_block *block, void *state)
> return true;
> }
>
> +/**
> + * The indices are applied top-to-bottom which has the very nice property
> + * that, if A dominates B, then A->index <= B->index.
> + */
> void
> nir_index_ssa_defs(nir_function_impl *impl)
> {
> @@ -1445,6 +1449,10 @@ index_instrs_block(nir_block *block, void *state)
> return true;
> }
>
> +/**
> + * The indices are applied top-to-bottom which has the very nice property
> + * that, if A dominates B, then A->index <= B->index.
> + */
> unsigned
> nir_index_instrs(nir_function_impl *impl)
> {
>
Before pushing, this patch should be squashed with the previous one
(1/4), I think.
Eduardo
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