| Tom Stellard | 13068995 | 2016-10-28 15:32:28 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -licm -S | FileCheck %s |
| 2 | |
| 3 | target datalayout = "e-p:32:32-p1:64:64-p4:64:64" |
| 4 | |
| 5 | ; Make sure isDereferenceableAndAlignePointer() doesn't crash when looking |
| 6 | ; walking pointer defs with an addrspacecast that changes pointer size. |
| 7 | ; CHECK-LABEL: @addrspacecast_crash |
| 8 | define void @addrspacecast_crash() { |
| 9 | bb: |
| 10 | %tmp = alloca [256 x i32] |
| 11 | br label %bb1 |
| 12 | |
| 13 | bb1: |
| 14 | %tmp2 = getelementptr inbounds [256 x i32], [256 x i32]* %tmp, i32 0, i32 36 |
| 15 | %tmp3 = bitcast i32* %tmp2 to <4 x i32>* |
| 16 | %tmp4 = addrspacecast <4 x i32>* %tmp3 to <4 x i32> addrspace(4)* |
| 17 | %tmp5 = load <4 x i32>, <4 x i32> addrspace(4)* %tmp4 |
| 18 | %tmp6 = xor <4 x i32> %tmp5, undef |
| 19 | store <4 x i32> %tmp6, <4 x i32> addrspace(1)* undef |
| 20 | br label %bb1 |
| 21 | } |