1; RUN: opt -instcombine -S -o - %s | FileCheck %s
2; Test that we don't replace an alias with its aliasee when simplifying GEPs.
3; In this test case the transformation is invalid because it replaces the
4; reference to the symbol "b" (which refers to whichever instance of "b"
5; was chosen by the linker) with a reference to "a" (which refers to the
6; specific instance of "b" in this module).
7
8target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
9target triple = "x86_64-unknown-linux-gnu"
10
11@a = internal global [3 x ptr] zeroinitializer
12@b = linkonce_odr alias [3 x ptr], ptr @a
13
14define ptr @f() {
15  ; CHECK: ret ptr getelementptr ([3 x ptr], ptr @b, i64 0, i64 1)
16  ret ptr getelementptr ([3 x ptr], ptr @b, i64 0, i64 1)
17}
18