; ModuleID = 'my_module'

define double @fibi(double %x) {
entry:
  %i = alloca double, align 8
  %b = alloca double, align 8
  %a = alloca double, align 8
  %x1 = alloca double, align 8
  store double %x, double* %x1, align 8
  store double 1.000000e+00, double* %a, align 8
  store double 1.000000e+00, double* %b, align 8
  store double 1.000000e+00, double* %i, align 8
  br label %loop

loop:                                             ; preds = %loop, %entry
  %i6 = phi double [ %nextvar, %loop ], [ 1.000000e+00, %entry ]
  %a9 = phi double [ %addtmp, %loop ], [ 1.000000e+00, %entry ]
  %a2 = phi double [ %a9, %loop ], [ 1.000000e+00, %entry ]
  %addtmp = fadd double %a2, %a9
  store double %a9, double* %a, align 8
  store double %addtmp, double* %b, align 8
  %nextvar = fadd double %i6, 1.000000e+00
  store double %nextvar, double* %i, align 8
  %lttmp = fcmp ult double %nextvar, %x
  br i1 %lttmp, label %loop, label %afterloop

afterloop:                                        ; preds = %loop
  ret double %a9
}