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      1 ; RUN: llc < %s -mtriple=thumbv7-apple-ios5.0.0 | FileCheck %s
      2 ; rdar://10464621
      3 
      4 ; DAG combine increases loads from packed types. ARM load / store optimizer then
      5 ; combined them into a ldm which causes runtime exception.
      6 
      7 %struct.InformationBlock = type <{ i32, %struct.FlagBits, %struct.FlagBits }>
      8 %struct.FlagBits = type <{ [4 x i32] }>
      9 
     10 @infoBlock = external global %struct.InformationBlock
     11 
     12 define hidden void @foo() {
     13 ; CHECK: foo:
     14 ; CHECK: ldr.w
     15 ; CHECK: ldr.w
     16 ; CHECK-NOT: ldm
     17 entry:
     18   %tmp13 = load i32* getelementptr inbounds (%struct.InformationBlock* @infoBlock, i32 0, i32 1, i32 0, i32 0), align 1
     19   %tmp15 = load i32* getelementptr inbounds (%struct.InformationBlock* @infoBlock, i32 0, i32 1, i32 0, i32 1), align 1
     20   %tmp17 = load i32* getelementptr inbounds (%struct.InformationBlock* @infoBlock, i32 0, i32 1, i32 0, i32 2), align 1
     21   %tmp19 = load i32* getelementptr inbounds (%struct.InformationBlock* @infoBlock, i32 0, i32 1, i32 0, i32 3), align 1
     22   %tmp = load i32* getelementptr inbounds (%struct.InformationBlock* @infoBlock, i32 0, i32 2, i32 0, i32 0), align 1
     23   %tmp3 = load i32* getelementptr inbounds (%struct.InformationBlock* @infoBlock, i32 0, i32 2, i32 0, i32 1), align 1
     24   %tmp4 = load i32* getelementptr inbounds (%struct.InformationBlock* @infoBlock, i32 0, i32 2, i32 0, i32 2), align 1
     25   %tmp5 = load i32* getelementptr inbounds (%struct.InformationBlock* @infoBlock, i32 0, i32 2, i32 0, i32 3), align 1
     26   %insert21 = insertvalue [4 x i32] undef, i32 %tmp13, 0
     27   %insert23 = insertvalue [4 x i32] %insert21, i32 %tmp15, 1
     28   %insert25 = insertvalue [4 x i32] %insert23, i32 %tmp17, 2
     29   %insert27 = insertvalue [4 x i32] %insert25, i32 %tmp19, 3
     30   %insert = insertvalue [4 x i32] undef, i32 %tmp, 0
     31   %insert7 = insertvalue [4 x i32] %insert, i32 %tmp3, 1
     32   %insert9 = insertvalue [4 x i32] %insert7, i32 %tmp4, 2
     33   %insert11 = insertvalue [4 x i32] %insert9, i32 %tmp5, 3
     34   tail call void @bar([4 x i32] %insert27, [4 x i32] %insert11)
     35   ret void
     36 }
     37 
     38 declare void @bar([4 x i32], [4 x i32])
     39