# QuanTAlib: Suggest FMA for multiply-add patterns
# DCT rule: Math.FusedMultiplyAdd(a, b, c) for a*b+c patterns in hot paths

id: suggest-fma-multiply-add
language: csharp
severity: hint
message: "Consider Math.FusedMultiplyAdd(a, b, c) for better precision and performance in hot paths"
note: "FMA provides single-rounding semantics and can be faster on modern CPUs. Use for EMA smoothing, IIR filters, weighted sums."
rule:
  any:
    - pattern: $A * $B + $C
    - pattern: $A + $B * $C