1; RUN: opt -passes=dse -S < %s | FileCheck %s 2target 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-f128:128:128-n8:16:32:64" 3target triple = "x86_64-unknown-linux-gnu" 4 5%struct.pair.162 = type { ptr, i32, [4 x i8] } 6%struct.BasicBlock = type { %struct.Value, %struct.ilist_node.24, %struct.iplist.22, ptr } 7%struct.Value = type { ptr, i8, i8, i16, ptr, ptr, ptr } 8%struct.Type = type { ptr, i8, [3 x i8], i32, ptr } 9%struct.LLVMContext = type { ptr } 10%struct.LLVMContextImpl = type opaque 11%struct.Use = type { ptr, ptr, %struct.PointerIntPair } 12%struct.PointerIntPair = type { i64 } 13%struct.StringMapEntry = type opaque 14%struct.ilist_node.24 = type { %struct.ilist_half_node.23, ptr } 15%struct.ilist_half_node.23 = type { ptr } 16%struct.iplist.22 = type { %struct.ilist_traits.21, ptr } 17%struct.ilist_traits.21 = type { %struct.ilist_half_node.25 } 18%struct.ilist_half_node.25 = type { ptr } 19%struct.Instruction = type { [52 x i8], %struct.ilist_node.26, ptr, %struct.DebugLoc } 20%struct.ilist_node.26 = type { %struct.ilist_half_node.25, ptr } 21%struct.DebugLoc = type { i32, i32 } 22%struct.Function = type { %struct.GlobalValue, %struct.ilist_node.14, %struct.iplist.4, %struct.iplist, ptr, %struct.AttrListPtr } 23%struct.GlobalValue = type <{ [52 x i8], [4 x i8], ptr, i8, i16, [5 x i8], %struct.basic_string }> 24%struct.Module = type { ptr, %struct.iplist.20, %struct.iplist.16, %struct.iplist.12, %struct.vector.2, %struct.ilist, %struct.basic_string, ptr, %struct.OwningPtr, %struct.basic_string, %struct.basic_string, %struct.basic_string, ptr } 25%struct.iplist.20 = type { %struct.ilist_traits.19, ptr } 26%struct.ilist_traits.19 = type { %struct.ilist_node.18 } 27%struct.ilist_node.18 = type { %struct.ilist_half_node.17, ptr } 28%struct.ilist_half_node.17 = type { ptr } 29%struct.GlobalVariable = type { %struct.GlobalValue, %struct.ilist_node.18, i8, [7 x i8] } 30%struct.iplist.16 = type { %struct.ilist_traits.15, ptr } 31%struct.ilist_traits.15 = type { %struct.ilist_node.14 } 32%struct.ilist_node.14 = type { %struct.ilist_half_node.13, ptr } 33%struct.ilist_half_node.13 = type { ptr } 34%struct.iplist.12 = type { %struct.ilist_traits.11, ptr } 35%struct.ilist_traits.11 = type { %struct.ilist_node.10 } 36%struct.ilist_node.10 = type { %struct.ilist_half_node.9, ptr } 37%struct.ilist_half_node.9 = type { ptr } 38%struct.GlobalAlias = type { %struct.GlobalValue, %struct.ilist_node.10 } 39%struct.vector.2 = type { %struct._Vector_base.1 } 40%struct._Vector_base.1 = type { %struct._Vector_impl.0 } 41%struct._Vector_impl.0 = type { ptr, ptr, ptr } 42%struct.basic_string = type { %struct._Alloc_hider } 43%struct._Alloc_hider = type { ptr } 44%struct.ilist = type { %struct.iplist.8 } 45%struct.iplist.8 = type { %struct.ilist_traits.7, ptr } 46%struct.ilist_traits.7 = type { %struct.ilist_node.6 } 47%struct.ilist_node.6 = type { %struct.ilist_half_node.5, ptr } 48%struct.ilist_half_node.5 = type { ptr } 49%struct.NamedMDNode = type { %struct.ilist_node.6, %struct.basic_string, ptr, ptr } 50%struct.ValueSymbolTable = type opaque 51%struct.OwningPtr = type { ptr } 52%struct.GVMaterializer = type opaque 53%struct.iplist.4 = type { %struct.ilist_traits.3, ptr } 54%struct.ilist_traits.3 = type { %struct.ilist_half_node.23 } 55%struct.iplist = type { %struct.ilist_traits, ptr } 56%struct.ilist_traits = type { %struct.ilist_half_node } 57%struct.ilist_half_node = type { ptr } 58%struct.Argument = type { %struct.Value, %struct.ilist_node, ptr } 59%struct.ilist_node = type { %struct.ilist_half_node, ptr } 60%struct.AttrListPtr = type { ptr } 61%struct.AttributeListImpl = type opaque 62 63declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) nounwind 64 65; CHECK: _ZSt9iter_swapIPSt4pairIPN4llvm10BasicBlockEjES5_EvT_T0_ 66; CHECK: store 67; CHECK: ret void 68define void @_ZSt9iter_swapIPSt4pairIPN4llvm10BasicBlockEjES5_EvT_T0_(ptr %__a, ptr %__b) nounwind uwtable inlinehint { 69entry: 70 %memtmp = alloca %struct.pair.162, align 8 71 %0 = load ptr, ptr %__a, align 8 72 store ptr %0, ptr %memtmp, align 8 73 %1 = getelementptr inbounds %struct.pair.162, ptr %memtmp, i64 0, i32 1 74 %2 = getelementptr inbounds %struct.pair.162, ptr %__a, i64 0, i32 1 75 %3 = load i32, ptr %2, align 4 76 store i32 %3, ptr %1, align 8 77 call void @llvm.memcpy.p0.p0.i64(ptr %__a, ptr %__b, i64 12, i1 false) 78 call void @llvm.memcpy.p0.p0.i64(ptr %__b, ptr %memtmp, i64 12, i1 false) 79 ret void 80} 81