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Commits on Jun 22, 2020

• Add a workaround for slowness of tf.while_loop in the default executor when maximum_iterations is set. Fixes #40517.

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  Dan Moldovan

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Commits on Jun 18, 2020

• Enable type annotations for python/autograph.

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  Dan Moldovan

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Commits on Jun 4, 2020

• Use more robust methods in tests that are dependent on the number and order of future imports.

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  Dan Moldovan

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Commits on May 27, 2020

• Uniformize the handling of undefined simple and composite names in control flow.

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  Dan Moldovan

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Commits on May 26, 2020

• Fix the string representation of string literal subscripts to be `x['a']` instead of `x[a]`.

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  Dan Moldovan

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Commits on May 24, 2020

• Rewrite `del` to treat undefinedness in a consistent manner.

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  Dan Moldovan

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Commits on May 22, 2020

• Use `is` instead of equality when checking for whitelisted modules, to avoid triggering side effects.

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  Dan Moldovan

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Commits on May 19, 2020

• Use the nonlocal mechanism for if statements. This is the same mechanism used by for and while loops and it allows reusing much of the code.

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  Dan Moldovan

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Commits on May 13, 2020

• More robustly check for undefined symbols before attempting to use them. This check is required because undefined symbols are initialized with a special placeholder before entering control flow. Th…

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  Dan Moldovan

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Commits on May 12, 2020

• fix a typo

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• Enable tests blocked by b/117943489

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  jaingaurav

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Commits on May 7, 2020

• Fix liveness analysis for variables closed over by functions. Previously, these variables were only live at the closing function's point of definition. After this change, these variables are live a…

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  Dan Moldovan

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Commits on May 6, 2020

• Replace safeguard against aliasing cond variables with a dynamic check. It is more verbose but more robust in the presence of exception-driven control flow.

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  Dan Moldovan

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Commits on May 2, 2020

• Internal cleanup: let each converter only perform the analysis it needs. Since the bottleneck is inside the conversion process, this is expected to speed it up noticeably.

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  Dan Moldovan

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• Create interfaces for distributed iterators and iterables. These interfaces are private for now. Use them to break the circular dependency with AutoGraph.

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  Dan Moldovan

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Commits on Apr 30, 2020

• Clean up dead core.

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  Dan Moldovan

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Commits on Apr 29, 2020

• Remove the requirement for the loop variable to be defined before the loop when used in `for ... in tf.range`.

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  Dan Moldovan

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• Move advanced AutoGraph material from tf.function guide into AutoGraph docs.

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  brilee

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• Removing experimental from run_functions_eagerly. Also removed all references for the experimental one from documentation.

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  rohan100jain

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Commits on Apr 23, 2020

• Minor cleanup of dead code.

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  Dan Moldovan

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• Merge pull request #38716 from yongtang:audograph-len-dataset

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• Write the control flow lowering in native Python and let the transformation rewrite them in functional form. This is a no-op change that simplifies the intermediate code.

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  Dan Moldovan

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• Fix CFG to correctly account for lambda functions that appear in while and for loops.

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  Dan Moldovan

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Commits on Apr 22, 2020

• Track lambda functions separately in the CFG, consistent with normal function definitions.

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  Dan Moldovan

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Commits on Apr 21, 2020

• Update test with self.evaluate(), as was suggested in review

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  yongtang

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• Track type annotations separately and more consistently in static analysis.

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  Dan Moldovan

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• Correctly track arguments and their defaults in activity analysis. Do so consistently between functions and lambdas. Fix unit tests.

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  Dan Moldovan

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• Internal cleanup: process global and nonlocal in a more consistent fashion during static analysis. Disconnect definitions of symbols between local functions and their parent.

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  Dan Moldovan

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Commits on Apr 20, 2020

• Add a quick note about accessing a function's namespace.

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  Dan Moldovan

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• Update PR based on review comment, for using identity and using tf.function for graph mode

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  yongtang

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• Throw out error for cardinality == UNKNOWN as well

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  yongtang

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• Pylint fix

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  yongtang

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• Add test case for unknown and infinite cadinality of dataset

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• Fallback to reduce to process the unknown cardinality case

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  yongtang

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• Use cardinality to process the infinite case, as was suggested by review comment

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