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fix: firtool lowering options CLI flag #4924

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fix: firtool lowering options CLI flag #4924

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4 changes: 2 additions & 2 deletions docs/src/explanations/testing.md
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Expand Up @@ -444,12 +444,12 @@ SystemVerilog may be difficult for you to use FileCheck with due to the default
SystemVerilog lowering, emission, and pretty printing used by `firtool`. To
make it easier to write your tests, we suggest using the following options:

- `-loweringOptions=emittedLineLength=160` to increase the allowable line
- `--lowering-options=emittedLineLength=160` to increase the allowable line
length. By default, `firtool` will wrap lines that exceed 80 characters. You
may consider using a _very long_ line length (e.g., 8192) to avoid this
problem altogether.

- `-loweringOptions=disallowLocalVariables` to disable generation of `automatic
- `--lowering-options=disallowLocalVariables` to disable generation of `automatic
logic` temporaries in always blocks. This can cause temporaries to spill
within an always block which may be slightly unexpected.

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