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Commit adefccd1 authored by Chris Forbes's avatar Chris Forbes
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i965: Handle nested uniform array indexing


When converting a uniform array reference to a pull constant load, the
`reladdr` expression itself may have its own `reladdr`, arbitrarily
deeply. This arises from expressions like:

   a[b[x]]     where a, b are uniform arrays (or lowered const arrays),
               and x is not a constant.

Just iterate the lowering to pull constants until we stop seeing these
nested. For most shaders, there will be only one pass through this loop.

Fixes the piglit test:
tests/spec/glsl-1.20/linker/double-indirect-1.shader_test

Signed-off-by: default avatarChris Forbes <chrisf@ijw.co.nz>
Cc: "10.3 10.4" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Kenneth Graunke's avatarKenneth Graunke <kenneth@whitecape.org>
parent c8838560
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