[WIP] Working expression optimization, and some improvements to branch-level source coverage#78040

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richkadel wants to merge 18 commits into

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richkadel:llvm-coverage-counters-2.0.3

Commits on Oct 21, 2020

Injecting expressions in place of counters where helpful
Rich Kadel
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Removed most TODO comments and OBE lines
Rich Kadel
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Expression optimization is nearly working
Rich Kadel
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optimized replacement of counters with expressions plus new BCB graphviz
Rich Kadel
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Added GapRegions to support non-coverage counters
Rich Kadel
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Generally working expressions
Rich Kadel
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Fixed coverage issues that I didn't like.
Rich Kadel
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Improved debugging and formatting options (from env)
Rich Kadel
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Don't automatically add counters to BCBs without CoverageSpans
Rich Kadel
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Cleaned up formatting, temporary comments, debug messages, and TODOs
Rich Kadel
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Make CodeRegions optional for Counters too
Rich Kadel
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instrument_coverage.rs -> instrument_coverage/mod.rs
Rich Kadel
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Completed most of the refactoring, except make_bcb_counters()
Rich Kadel
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Apparently there were a few recent changes affecting tests
Rich Kadel
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Fixed four bugs found while compiling a larger set of real world crates
Rich Kadel
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Refactored debug features from mod.rs to debug.rs
Rich Kadel
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Commits on Oct 22, 2020

new `counters.rs` for counter management, and improved comments overall
Rich Kadel
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Refactored make_bcb_counters() into several smaller functions
Rich Kadel
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