1; RUN: opt < %s -instcombine -S | grep "ret i32 %A"
2; RUN: opt < %s -dce -S | not grep call.*llvm
3
4define i32 @test(i32 %A) {
5	%X = or i1 false, false
6	br i1 %X, label %T, label %C
7
8T:		; preds = %0
9	%B = add i32 %A, 1
10	br label %C
11
12C:		; preds = %T, %0
13	%C.upgrd.1 = phi i32 [ %B, %T ], [ %A, %0 ]
14	ret i32 %C.upgrd.1
15}
16
17define i32* @test2(i32 %width) {
18	%tmp = call i8* @llvm.stacksave( )
19        %tmp14 = alloca i32, i32 %width
20	ret i32* %tmp14
21}
22
23declare i8* @llvm.stacksave()
24
25declare void @llvm.lifetime.start.p0i8(i64, i8*)
26declare void @llvm.lifetime.end.p0i8(i64, i8*)
27
28define void @test3() {
29  call void @llvm.lifetime.start.p0i8(i64 -1, i8* undef)
30  call void @llvm.lifetime.end.p0i8(i64 -1, i8* undef)
31  ret void
32}
33
34