// Boolean PHI merge demo (b1 internal path)
// Enable: NYASH_JIT_EXEC=1 NYASH_JIT_THRESHOLD=1 NYASH_JIT_PHI_MIN=1
// Optional DOT: NYASH_JIT_DOT=tmp/phi_bool.dot

static box Main {
    main() {
        local a, b, c
        a = 3
        b = 5
        // Create a boolean via branch to force PHI merge of boolean
        if (a < b) {
            c = true
        } else {
            c = false
        }
        // Use merged boolean
        if (c) {
            return 1
        } else {
            return 0
        }
    }
}