1 ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep extractvalue
3 ; Instcombine should fold various combinations of insertvalue and extractvalue
5 declare void @bar({i32, i32} %a)
8 ; Build a simple struct and pull values out again
9 %s1.1 = insertvalue {i32, i32} undef, i32 0, 0
10 %s1 = insertvalue {i32, i32} %s1.1, i32 1, 1
11 %v1 = extractvalue {i32, i32} %s1, 0
12 %v2 = extractvalue {i32, i32} %s1, 1
14 ; Build a nested struct and pull a sub struct out of it
15 ; This requires instcombine to insert a few insertvalue instructions
16 %ns1.1 = insertvalue {i32, {i32, i32}} undef, i32 %v1, 0
17 %ns1.2 = insertvalue {i32, {i32, i32}} %ns1.1, i32 %v1, 1, 0
18 %ns1 = insertvalue {i32, {i32, i32}} %ns1.2, i32 %v2, 1, 1
19 %s2 = extractvalue {i32, {i32, i32}} %ns1, 1
20 call void @bar({i32, i32} %s2)
21 %v3 = extractvalue {i32, {i32, i32}} %ns1, 1, 1