gistfile1.ll

@hello = internal constant [21 x i8] c"hello, world %d - %f\00"

 declare float     @llvm.cos.f32(float  %Val)
declare i32 @printf(i8* noalias nocapture, ...) nounwind

define fastcc i32 @main(i32 %argc, i8** %argv) nounwind {
start:
    ; Cast i8 array to pointer
    %ptr = getelementptr [21 x i8]* @hello, i64 0, i64 0
    %cos = call float @llvm.cos.f32(float 3.0)
    call i32 (i8*, ...)* @printf(i8* %ptr, i32 %argc, float %cos)
    tail call fastcc i32 @main(i32 0, i8** null)
    
    ret i32 0
}