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1026574
2013 Feb 14
2
[LLVMdev] Question about fastcc assumptions and seemingly superfluous %esp updates
Hello,
While investigating one of the existing tests
(test/CodeGen/X86/tailcallpic2.ll), I ran into IR that produces some
interesting code. The IR is very straightforward:
define protected fastcc i32 @tailcallee(i32 %a1, i32 %a2, i32 %a3, i32 %a4) {
entry:
ret i32 %a3
}
define fastcc i32 @tailcaller(i32 %in1, i32 %in2) {
entry:
%tmp11 = tail call fastcc i32 @tailcallee( i32 %in1, i32 %in2, i32