File: tailcallbyval.ll

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llvm-2.9 2.9%2Bdfsg-7
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; RUN: llc < %s -march=x86 -tailcallopt | grep TAILCALL
; RUN: llc < %s -march=x86 -tailcallopt | grep {movl\[\[:space:\]\]*4(%esp), %eax} | count 1
%struct.s = type {i32, i32, i32, i32, i32, i32, i32, i32,
                  i32, i32, i32, i32, i32, i32, i32, i32,
                  i32, i32, i32, i32, i32, i32, i32, i32 }

define  fastcc i32 @tailcallee(%struct.s* byval %a) nounwind {
entry:
        %tmp2 = getelementptr %struct.s* %a, i32 0, i32 0
        %tmp3 = load i32* %tmp2
        ret i32 %tmp3
}

define  fastcc i32 @tailcaller(%struct.s* byval %a) nounwind {
entry:
        %tmp4 = tail call fastcc i32 @tailcallee(%struct.s* %a byval)
        ret i32 %tmp4
}