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Mark fixed blocks#1759

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sfkhalid merged 27 commits intomasterverilog-to-routing/vtr-verilog-to-routing:masterfrom

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Jun 22, 2021

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Commits on Jun 2, 2021

• Added code for marking down blocks that constrained to one location on the grid as fixed and changed definition of Region::empty() to show false for a region that contains one grid location

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• Region empty function now returns true if the rectangle either has impossible dimensions, or it is uninitialized. This change was needed because previously, the default uninitialized values would b…

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• Ran make format

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Commits on Jun 9, 2021

• Changed default empty region values

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• Added helper function for marking block locations and grid usage with extra checks

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• Changed placement consistency error messages to improve clarity

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Commits on Jun 10, 2021

• Add function to count number of tiles covered by a floorplan region

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Commits on Jun 14, 2021

• Changed comment

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Commits on Jun 15, 2021

• Changed name of function mark_block_location->set_block_location

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Commits on Jun 16, 2021

• Added functions to check whether the PartitionRegion of a cluster block covers one tile or more than one tile. This was needed to decide which blocks to mark as fixed

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• Ran make format

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• Removed locked member function from Region class - was no longer needed after function to check number of tiles was written

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• Merge branch 'master' into mark_fixed_blocks

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• Got rid of unnecessary lines in mark_fixed_blocks

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• merge branch 'mark_fixed_blocks' of https://github.com/verilog-to-routing/vtr-verilog-to-routing into mark_fixed_blocks

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• Ran make format

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Commits on Jun 17, 2021

• Initialized grid blocks earlier in flow of reading in place file

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• Refactored read_place to make use of set_block_location utility function

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• Improved error messaging during read place

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• Refactored region size routine to return an int instead of a bool

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Commits on Jun 18, 2021

• Refactored region tile cover routine to return int instead of bool

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• Modified is_pr_size_one to get rid of compiler warning

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• Added check to partition region size check to see whether multiple regions cover the same tile

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Commits on Jun 21, 2021

• Added checks for whether subtile location is valid when marking fixed blocks

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• Merge branch 'master' into mark_fixed_blocks

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• Check whether subtile is compatible when adding fixed blocks

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• Moved initialization of placement structures during load place flow. Initialize the structures using utility function init_placement_context, which is also used during the do place flow

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