1 ; RUN: opt %s -passes='sroa,verify' -S -o - | FileCheck %s
3 ; Test that we can partial emit debug info for aggregates repeatedly
16 ; int foo(Outer outer) {
17 ; Inner i1 = outer.inner[1];
22 ; Verify that SROA creates a variable piece when splitting i1.
23 ; CHECK: %[[I1:.*]] = alloca [12 x i8], align 4
24 ; CHECK: call void @llvm.dbg.declare(metadata ptr %[[I1]], metadata ![[VAR:[0-9]+]], metadata !DIExpression(DW_OP_LLVM_fragment, 32, 96))
25 ; CHECK: call void @llvm.dbg.value(metadata i32 %[[A:.*]], metadata ![[VAR]], metadata !DIExpression(DW_OP_LLVM_fragment, 0, 32))
26 ; CHECK: ret i32 %[[A]]
28 ; CHECK: ![[VAR]] = !DILocalVariable(name: "i1",{{.*}} line: 11,
30 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
31 target triple = "x86_64-apple-macosx10.9.0"
33 %struct.Outer = type { [2 x %struct.Inner] }
34 %struct.Inner = type { i32, i64 }
36 ; Function Attrs: nounwind ssp uwtable
37 define i32 @foo(ptr byval(%struct.Outer) align 8 %outer) #0 !dbg !4 {
39 %i1 = alloca %struct.Inner, align 8
40 call void @llvm.dbg.declare(metadata ptr %outer, metadata !25, metadata !2), !dbg !26
41 call void @llvm.dbg.declare(metadata ptr %i1, metadata !27, metadata !2), !dbg !28
42 %arrayidx = getelementptr inbounds [2 x %struct.Inner], ptr %outer, i32 0, i64 1, !dbg !28
43 call void @llvm.memcpy.p0.p0.i64(ptr align 8 %i1, ptr align 8 %arrayidx, i64 16, i1 false), !dbg !28
44 %0 = load i32, ptr %i1, align 4, !dbg !29
48 ; Function Attrs: nounwind readnone
49 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
51 ; Function Attrs: nounwind
52 declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture readonly, i64, i1) #2
54 attributes #0 = { nounwind ssp uwtable }
55 attributes #1 = { nounwind readnone }
56 attributes #2 = { nounwind }
59 !llvm.module.flags = !{!22, !23}
62 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !{}, retainedTypes: !{}, globals: !{}, imports: !{})
63 !1 = !DIFile(filename: "sroasplit-1.c", directory: "")
65 !4 = distinct !DISubprogram(name: "foo", line: 10, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 10, file: !1, scope: !5, type: !6, retainedNodes: !{})
66 !5 = !DIFile(filename: "sroasplit-1.c", directory: "")
67 !6 = !DISubroutineType(types: !7)
69 !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
70 !9 = !DIDerivedType(tag: DW_TAG_typedef, name: "Outer", line: 8, file: !1, baseType: !10)
71 !10 = !DICompositeType(tag: DW_TAG_structure_type, line: 6, size: 256, align: 64, file: !1, elements: !11)
73 !12 = !DIDerivedType(tag: DW_TAG_member, name: "inner", line: 7, size: 256, align: 64, file: !1, scope: !10, baseType: !13)
74 !13 = !DICompositeType(tag: DW_TAG_array_type, size: 256, align: 64, baseType: !14, elements: !20)
75 !14 = !DIDerivedType(tag: DW_TAG_typedef, name: "Inner", line: 4, file: !1, baseType: !15)
76 !15 = !DICompositeType(tag: DW_TAG_structure_type, line: 1, size: 128, align: 64, file: !1, elements: !16)
78 !17 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 2, size: 32, align: 32, file: !1, scope: !15, baseType: !8)
79 !18 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 3, size: 64, align: 64, offset: 64, file: !1, scope: !15, baseType: !19)
80 !19 = !DIBasicType(tag: DW_TAG_base_type, name: "long int", size: 64, align: 64, encoding: DW_ATE_signed)
82 !21 = !DISubrange(count: 2)
83 !22 = !{i32 2, !"Dwarf Version", i32 2}
84 !23 = !{i32 1, !"Debug Info Version", i32 3}
85 !24 = !{!"clang version 3.5.0 "}
86 !25 = !DILocalVariable(name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
87 !26 = !DILocation(line: 10, scope: !4)
88 !27 = !DILocalVariable(name: "i1", line: 11, scope: !4, file: !5, type: !14)
89 !28 = !DILocation(line: 11, scope: !4)
90 !29 = !DILocation(line: 12, scope: !4)