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7c6da493
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2021-07-26T21:24:25
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Translator: Make sure built-in variables are consistent
Some transformations left the tree in an inconsistent state, for example
if it used gl_SampleMask from ES3.1+OES_sample_variables and the
transformation added a usage of gl_SampleMask from ES3.2. The offending
transformations are fixed and AST validation is improved to catch such
errors.
Bug: angleproject:4889
Change-Id: I9d9ea5bb43a9408dd4c6dc3e89ec20d60dfeff73
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3054613
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
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