code

extern putchard(char);
    def printstar(n)
      for i = 1, i < n, 1.0 in
        putchard(42);  # ascii 42 = '*'

    # print 100 '*' characters
    printstar(100);

declare double @putchard(double)

define double @printstar(double %n) {
entry:
  ; initial value = 1.0 (inlined into phi)
  br label %loop

loop:       ; preds = %loop, %entry
  %i = phi double [ 1.000000e+00, %entry ], [ %nextvar, %loop ]
  ; body
  %calltmp = call double @putchard(double 4.200000e+01)
  ; increment
  %nextvar = fadd double %i, 1.000000e+00

  ; termination test
  %cmptmp = fcmp ult double %i, %n
  %booltmp = uitofp i1 %cmptmp to double
  %loopcond = fcmp one double %booltmp, 0.000000e+00
  br i1 %loopcond, label %loop, label %afterloop

afterloop:      ; preds = %loop
  ; loop always returns 0.0
  ret double 0.000000e+00
}