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authorKenneth Graunke <[email protected]>2016-01-05 05:34:24 -0800
committerKenneth Graunke <[email protected]>2016-01-06 21:22:06 -0800
commit3e8f644ed31809ff558dc635581ba7abf6a16776 (patch)
treed167aca55dda8a13b0417fe9c299428af55fca4a /docs
parent8d4039ecdb167771d4b085f70b9666438be1c6ad (diff)
glsl: Disallow vectorization of vector_insert/extract.
vector_insert takes a vector, a scalar location, and a scalar value, and produces a new vector with that component updated. As such, it can't be vectorized properly. vector_extract takes a vector and a scalar location, and returns that scalar component of the vector. Vectorization doesn't really make any sense. Treating both as horizontal operations makes sure the vectorizer won't try to touch these. Found by inspection. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Matt Turner <[email protected]>
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