Scalar multiplication is broken in at least >0.5.1

[signorecello]

Aim

Trying to use std::scalar_mul::fixed_base in this snippet:

use dep::std;

fn main(priv_key: Field) {
    std::scalar_mul::fixed_base(priv_key);
}

#[test]
fn test_main() {
    main(0x1929ea3ab8d9106a899386883d9428f8256cfedb3c4f6b66bf4aa4d28a79988f)
}

Expected Behavior

Expected the operation to perform normally

Bug

Test fails with:

Running 1 test functions...
Testing test_main...
The application panicked (crashed).
Message:  not yet implemented
Location: crates/noirc_evaluator/src/ssa/optimizations.rs:162

A workaround (thanks @jfecher) is to run nargo test --experimental-ssa instead. Only works if using nightly version (>0.7.0)

To Reproduce

1. Write a circuit with scalar multiplication
2. Write a test
3. Run nargo test

Installation Method

Binary

Nargo Version

nargo 0.7.1 (git version hash: fa9be1d, is dirty: false)

Additional Context

No response

Would you like to submit a PR for this Issue?

No

Support Needs

No response

[TomAFrench]

A workaround (thanks @jfecher) is to run nargo test --experimental-ssa instead. Only works if using nightly version (>0.7.0)

Closing as this is now the default.