message: Singlepass will also use BMI1 on x86_64 (for TZCNT)
diff: @@ -259,7 +259,7 @@ impl Compiler for SinglepassCompiler {
  }
  fn get_cpu_features_used(&self, cpu_features: &EnumSet<CpuFeature>) -> EnumSet<CpuFeature> {
  - let used = CpuFeature::AVX | CpuFeature::SSE42 | CpuFeature::LZCNT;
  + let used = CpuFeature::AVX | CpuFeature::SSE42 | CpuFeature::LZCNT | CpuFeature::BMI1;
  cpu_features.intersection(used)
  }
  }
  