llvm-project/llvm/test/Transforms/ArgumentPromotion/byval.ll

25 lines
843 B
LLVM

; RUN: llvm-as < %s | opt -argpromotion -scalarrepl | llvm-dis | not grep load
; Argpromote + scalarrepl should change this to passing the two integers by value.
%struct.ss = type { i32, i64 }
define internal void @f(%struct.ss* byval %b) nounwind {
entry:
%tmp = getelementptr %struct.ss* %b, i32 0, i32 0 ; <i32*> [#uses=2]
%tmp1 = load i32* %tmp, align 4 ; <i32> [#uses=1]
%tmp2 = add i32 %tmp1, 1 ; <i32> [#uses=1]
store i32 %tmp2, i32* %tmp, align 4
ret void
}
define i32 @main() nounwind {
entry:
%S = alloca %struct.ss ; <%struct.ss*> [#uses=4]
%tmp1 = getelementptr %struct.ss* %S, i32 0, i32 0 ; <i32*> [#uses=1]
store i32 1, i32* %tmp1, align 8
%tmp4 = getelementptr %struct.ss* %S, i32 0, i32 1 ; <i64*> [#uses=1]
store i64 2, i64* %tmp4, align 4
call void @f( %struct.ss* byval %S ) nounwind
ret i32 0
}