File: thumb2-ldr_pre.ll

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llvm-2.7 2.7-6
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; RUN: llc < %s -march=thumb -mattr=+thumb2 | \
; RUN:   grep {ldr.*\\!} | count 3
; RUN: llc < %s -march=thumb -mattr=+thumb2 | \
; RUN:   grep {ldrsb.*\\!} | count 1

define i32* @test1(i32* %X, i32* %dest) {
        %Y = getelementptr i32* %X, i32 4               ; <i32*> [#uses=2]
        %A = load i32* %Y               ; <i32> [#uses=1]
        store i32 %A, i32* %dest
        ret i32* %Y
}

define i32 @test2(i32 %a, i32 %b) {
        %tmp1 = sub i32 %a, 64          ; <i32> [#uses=2]
        %tmp2 = inttoptr i32 %tmp1 to i32*              ; <i32*> [#uses=1]
        %tmp3 = load i32* %tmp2         ; <i32> [#uses=1]
        %tmp4 = sub i32 %tmp1, %b               ; <i32> [#uses=1]
        %tmp5 = add i32 %tmp4, %tmp3            ; <i32> [#uses=1]
        ret i32 %tmp5
}

define i8* @test3(i8* %X, i32* %dest) {
        %tmp1 = getelementptr i8* %X, i32 4
        %tmp2 = load i8* %tmp1
        %tmp3 = sext i8 %tmp2 to i32
        store i32 %tmp3, i32* %dest
        ret i8* %tmp1
}