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bitset encoding tends to have a lot of duplication, for ex. many
instructions with the same encoding modulo the fixed pattern.  Now that
encode_bitset is split out into it's own template, so that we can
capture the result, use a hash table to de-duplicate the bitset encoding
into "snippet" functions so that bitset cases with identical encoding
can re-use the same generated code.
Signed-off-by: Rob Clark <robdclark@chromium.org>

In the next patch, we are going to want to be able to capture the result
of rendering the template as a py variable, which I don't think you can
do otherwise with a <%def>.
Signed-off-by: Rob Clark <robdclark@chromium.org>

Signed-off-by: Rob Clark <robdclark@chromium.org>

These were never used, leftovers from an earlier iteration of isaspec
which used an RPN based thing for expressions.
Signed-off-by: Rob Clark <robdclark@chromium.org>

This helps to get a really nice and aligend disasm output.
Just use :align=X to define where in the line the field
should be printed.
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <!11321>

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <mesa/mesa!11321>

To support field alignment we need to keep track of how much
data we have printed to our out FILE. This is a prep commit.
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <mesa/mesa!11321>

This commit moves isaspec out of freedreno into a more
generic new home - src/compiler/isaspec.
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <mesa/mesa!11321>