|  | ; RUN: llc -O3 -aarch64-enable-gep-opt=true   < %s |FileCheck %s | 
|  | target datalayout = "e-m:e-i64:64-i128:128-n8:16:32:64-S128" | 
|  | target triple = "aarch64--linux-gnu" | 
|  |  | 
|  | %structA = type { i8, i8, i8, i8, i8, i8, [4 x i8], i8, i8, [2 x i32], [2 x %unionMV], [4 x [2 x %unionMV]], [4 x [2 x %unionMV]], [4 x i8], i8*, i8*, i32, i8* } | 
|  | %unionMV = type { i32 } | 
|  |  | 
|  | ; Function Attrs: nounwind | 
|  | define void @test(%structA* %mi_block) { | 
|  | entry: | 
|  | br i1 undef, label %for.body13.us, label %if.else | 
|  |  | 
|  | ; Just make sure we don't get a compiler ICE due to dereferncing a nullptr. | 
|  | ; CHECK-LABEL: test | 
|  | for.body13.us:                                    ; preds = %entry | 
|  | %indvars.iv.next40 = or i64 0, 1 | 
|  | %packed4.i.us.1 = getelementptr inbounds %structA, %structA* %mi_block, i64 0, i32 11, i64 0, i64 %indvars.iv.next40, i32 0 | 
|  | unreachable | 
|  |  | 
|  | if.else:                                          ; preds = %entry | 
|  | ret void | 
|  | } | 
|  |  |