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[NFC] Fix #106873 - update assignment tracking docs #106959

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Sep 2, 2024
Merged

[NFC] Fix #106873 - update assignment tracking docs #106959

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[NFC] Fix #106873 - update assignment tracking docs
OCHyams Sep 2, 2024
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OCHyams Sep 2, 2024
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10 changes: 6 additions & 4 deletions llvm/docs/AssignmentTracking.md
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Expand Up @@ -20,12 +20,14 @@ LLVM pass writers, and minimal disruption to LLVM in general.

## Status and usage

**Status**: Experimental work in progress. Enabling is strongly advised against
except for development and testing.
**Status**: Enabled by default in Clang but disabled under some circumstances
(which can be overridden with the `forced` option, see below). `opt` will not
run the pass unless asked (`-passes=declare-to-assign`).

**Enable in Clang**: `-Xclang -fexperimental-assignment-tracking`
**Flag**:
`-Xclang -fexperimental-assignment-tracking=<disabled|enabled|forced>`

That causes Clang to get LLVM to run the pass `declare-to-assign`. The pass
When enabled Clang gets LLVM to run the pass `declare-to-assign`. The pass
converts conventional debug records to assignment tracking metadata and sets
the module flag `debug-info-assignment-tracking` to the value `i1 true`. To
check whether assignment tracking is enabled for a module call
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