1; RUN: llc -march=mips -mcpu=mips32r2 < %s -o /dev/null
2
3; Test that SelectionDAG does not crash during DAGCombine when two pointers
4; to the stack match with differing bases and offsets when expanding memcpy.
5; This could result in one of the pointers being considered dereferenceable
6; and other not.
7
8define void @foo(i8*) {
9start:
10  %a = alloca [22 x i8]
11  %b = alloca [22 x i8]
12  %c = bitcast [22 x i8]* %a to i8*
13  %d = getelementptr inbounds [22 x i8], [22 x i8]* %b, i32 0, i32 2
14  call void @llvm.memcpy.p0i8.p0i8.i32(i8* %c, i8* %d, i32 20, i1 false)
15  %e = getelementptr inbounds [22 x i8], [22 x i8]* %b, i32 0, i32 6
16  call void @llvm.memcpy.p0i8.p0i8.i32(i8* %0, i8* %e, i32 12, i1 false)
17  ret void
18}
19
20declare void @llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i1)
21