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      1 ; RUN: opt < %s -instcombine -S | FileCheck %s
      2 
      3 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
      4 target triple = "x86_64-pc-win32"
      5 
      6 %myStruct = type { float, [3 x float], [4 x float], i32 }
      7 
      8 ; make sure that we are not crashing when creating an illegal type
      9 define void @func(%myStruct addrspace(1)* nocapture %p) nounwind {
     10 ST:
     11   %A = getelementptr inbounds %myStruct addrspace(1)* %p, i64 0
     12   %B = addrspacecast %myStruct addrspace(1)* %A to %myStruct*
     13   %C = getelementptr inbounds %myStruct* %B, i32 0, i32 1
     14   %D = getelementptr inbounds [3 x float]* %C, i32 0, i32 2
     15   %E = load float* %D, align 4
     16   %F = fsub float %E, undef
     17   ret void
     18 }
     19 
     20 @array = internal addrspace(3) global [256 x float] zeroinitializer, align 4
     21 @scalar = internal addrspace(3) global float 0.000000e+00, align 4
     22 
     23 define void @keep_necessary_addrspacecast(i64 %i, float** %out0, float** %out1) {
     24 entry:
     25 ; CHECK-LABEL: @keep_necessary_addrspacecast
     26   %0 = getelementptr [256 x float]* addrspacecast ([256 x float] addrspace(3)* @array to [256 x float]*), i64 0, i64 %i
     27 ; CHECK: addrspacecast float addrspace(3)* %{{[0-9]+}} to float*
     28   %1 = getelementptr [0 x float]* addrspacecast (float addrspace(3)* @scalar to [0 x float]*), i64 0, i64 %i
     29 ; CHECK: addrspacecast float addrspace(3)* %{{[0-9]+}} to float*
     30   store float* %0, float** %out0, align 4
     31   store float* %1, float** %out1, align 4
     32   ret void
     33 }
     34 
     35