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Commit 487debfd authored by Emma Anholt's avatar Emma Anholt
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glsl/opt_cpe: Kill when the assignment isn't something we recognize.

A few GLES2 tests tripped over this when using array dereferences to
hit channels on the LHS (see piglit test
glsl-copy-propagation-vector-indexing).  We wouldn't find the
ir_dereference_variable, and assume that that meant that it wasn't an
assignment to a scalar/vector, and thus not notice that the variable
had been changed.
parent b9c8b2a1
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