[Mesa-dev] [PATCH 08/23] i965/fs: fix copy propagation from load payload

[Francisco Jerez]

Samuel Iglesias Gonsálvez <siglesias at igalia.com> writes:

> From: Iago Toral Quiroga <itoral at igalia.com>
>
> We were not considering the case where the load payload is writing to
> a destination with a reg_offset > 0.

Reviewed-by: Francisco Jerez <currojerez at riseup.net>

> ---
>  src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp b/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
> index fe37676..9fc06cb 100644
> --- a/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
> +++ b/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
> @@ -820,7 +820,7 @@ fs_visitor::opt_copy_propagate_local(void *copy_prop_ctx, bblock_t *block,
>              if (inst->src[i].file == VGRF) {
>                 acp_entry *entry = ralloc(copy_prop_ctx, acp_entry);
>                 entry->dst = inst->dst;
> -               entry->dst.reg_offset = offset;
> +               entry->dst.reg_offset += offset;
>                 entry->src = inst->src[i];
>                 entry->regs_written = regs_written;
>                 entry->regs_read = inst->regs_read(i);
> -- 
> 2.5.0
>
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