File: basictest.ll

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llvm 2.6-9.1
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; RUN: llvm-as < %s | opt -argpromotion -mem2reg | llvm-dis | not grep alloca
define internal i32 @test(i32* %X, i32* %Y) {
        %A = load i32* %X               ; <i32> [#uses=1]
        %B = load i32* %Y               ; <i32> [#uses=1]
        %C = add i32 %A, %B             ; <i32> [#uses=1]
        ret i32 %C
}

define internal i32 @caller(i32* %B) {
        %A = alloca i32         ; <i32*> [#uses=2]
        store i32 1, i32* %A
        %C = call i32 @test( i32* %A, i32* %B )         ; <i32> [#uses=1]
        ret i32 %C
}

define i32 @callercaller() {
        %B = alloca i32         ; <i32*> [#uses=2]
        store i32 2, i32* %B
        %X = call i32 @caller( i32* %B )                ; <i32> [#uses=1]
        ret i32 %X
}