1 ; This test shows an alloca of a struct and an array that can be reduced to
2 ; multiple variables easily. However, the alloca is used by a store
3 ; instruction, which was not possible before aggregrates were first class
4 ; values. This checks of scalarrepl splits up the struct and array properly.
6 ; RUN: opt < %s -scalarrepl -S | not grep alloca
9 %target = alloca { i32, i32 } ; <{ i32, i32 }*> [#uses=1]
10 ; Build a first class struct to store
11 %res1 = insertvalue { i32, i32 } undef, i32 1, 0 ; <{ i32, i32 }> [#uses=1]
12 %res2 = insertvalue { i32, i32 } %res1, i32 2, 1 ; <{ i32, i32 }> [#uses=1]
14 store { i32, i32 } %res2, { i32, i32 }* %target
15 ; Actually use %target, so it doesn't get removed alltogether
16 %ptr = getelementptr { i32, i32 }* %target, i32 0, i32 0
22 %target = alloca [ 2 x i32 ] ; <{ i32, i32 }*> [#uses=1]
23 ; Build a first class array to store
24 %res1 = insertvalue [ 2 x i32 ] undef, i32 1, 0 ; <{ i32, i32 }> [#uses=1]
25 %res2 = insertvalue [ 2 x i32 ] %res1, i32 2, 1 ; <{ i32, i32 }> [#uses=1]
27 store [ 2 x i32 ] %res2, [ 2 x i32 ]* %target
28 ; Actually use %target, so it doesn't get removed alltogether
29 %ptr = getelementptr [ 2 x i32 ]* %target, i32 0, i32 0