1; RUN: not opt -S -dxil-op-lower -mtriple=dxil-pc-shadermodel6.3-library %s 2>&1 | FileCheck %s 2 3; DXIL operation firstbitshigh does not support double overload type 4; CHECK: invalid intrinsic signature 5 6define noundef double @firstbitlow_double(double noundef %a) { 7entry: 8 %1 = call double @llvm.dx.firstbitlow.f64(double %a) 9 ret double %1 10} 11