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1; RUN: opt %s -passes='sroa,verify' -S -o - | FileCheck %s2;3; Test that we can partial emit debug info for aggregates repeatedly4; split up by SROA.5;6; // Compile with -O17; typedef struct {8; int a;9; int b;10; } Inner;11;12; typedef struct {13; Inner inner[2];14; } Outer;15;16; int foo(Outer outer) {17; Inner i1 = outer.inner[1];18; return i1.a;19; }20;21 22; Verify that SROA creates a variable piece when splitting i1.23; CHECK: #dbg_value(i64 %outer.coerce0, ![[O:[0-9]+]], !DIExpression(DW_OP_LLVM_fragment, 0, 64),24; CHECK: #dbg_value(i32 {{.*}}, ![[O]], !DIExpression(DW_OP_LLVM_fragment, 64, 32),25; CHECK: #dbg_value(i32 {{.*}}, ![[O]], !DIExpression(DW_OP_LLVM_fragment, 96, 32),26; CHECK: #dbg_value({{.*}}, ![[I1:[0-9]+]], !DIExpression(DW_OP_LLVM_fragment, 0, 32),27; CHECK-DAG: ![[O]] = !DILocalVariable(name: "outer",{{.*}} line: 1028; CHECK-DAG: ![[I1]] = !DILocalVariable(name: "i1",{{.*}} line: 1129 30; ModuleID = 'sroasplit-2.c'31target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"32target triple = "x86_64-apple-macosx10.9.0"33 34%struct.Outer = type { [2 x %struct.Inner] }35%struct.Inner = type { i32, i32 }36 37; Function Attrs: nounwind ssp uwtable38define i32 @foo(i64 %outer.coerce0, i64 %outer.coerce1) #0 !dbg !4 {39 %outer = alloca %struct.Outer, align 840 %i1 = alloca %struct.Inner, align 441 %1 = getelementptr { i64, i64 }, ptr %outer, i32 0, i32 042 store i64 %outer.coerce0, ptr %143 %2 = getelementptr { i64, i64 }, ptr %outer, i32 0, i32 144 store i64 %outer.coerce1, ptr %245 call void @llvm.dbg.declare(metadata ptr %outer, metadata !24, metadata !2), !dbg !2546 call void @llvm.dbg.declare(metadata ptr %i1, metadata !26, metadata !2), !dbg !2747 %3 = getelementptr inbounds [2 x %struct.Inner], ptr %outer, i32 0, i64 1, !dbg !2748 call void @llvm.memcpy.p0.p0.i64(ptr align 4 %i1, ptr align 4 %3, i64 8, i1 false), !dbg !2749 %4 = load i32, ptr %i1, align 4, !dbg !2850 ret i32 %4, !dbg !2851}52 53; Function Attrs: nounwind readnone54declare void @llvm.dbg.declare(metadata, metadata, metadata) #155 56; Function Attrs: nounwind57declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture readonly, i64, i1) #258 59attributes #0 = { nounwind ssp uwtable "frame-pointer"="all" }60attributes #1 = { nounwind readnone }61attributes #2 = { nounwind }62 63!llvm.dbg.cu = !{!0}64!llvm.module.flags = !{!21, !22}65!llvm.ident = !{!23}66 67!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !{}, retainedTypes: !{}, globals: !{}, imports: !{})68!1 = !DIFile(filename: "sroasplit-2.c", directory: "")69!2 = !DIExpression()70!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: !{})71!5 = !DIFile(filename: "sroasplit-2.c", directory: "")72!6 = !DISubroutineType(types: !7)73!7 = !{!8, !9}74!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)75!9 = !DIDerivedType(tag: DW_TAG_typedef, name: "Outer", line: 8, file: !1, baseType: !10)76!10 = !DICompositeType(tag: DW_TAG_structure_type, line: 6, size: 128, align: 32, file: !1, elements: !11)77!11 = !{!12}78!12 = !DIDerivedType(tag: DW_TAG_member, name: "inner", line: 7, size: 128, align: 32, file: !1, scope: !10, baseType: !13)79!13 = !DICompositeType(tag: DW_TAG_array_type, size: 128, align: 32, baseType: !14, elements: !19)80!14 = !DIDerivedType(tag: DW_TAG_typedef, name: "Inner", line: 4, file: !1, baseType: !15)81!15 = !DICompositeType(tag: DW_TAG_structure_type, line: 1, size: 64, align: 32, file: !1, elements: !16)82!16 = !{!17, !18}83!17 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 2, size: 32, align: 32, file: !1, scope: !15, baseType: !8)84!18 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 3, size: 32, align: 32, offset: 32, file: !1, scope: !15, baseType: !8)85!19 = !{!20}86!20 = !DISubrange(count: 2)87!21 = !{i32 2, !"Dwarf Version", i32 2}88!22 = !{i32 1, !"Debug Info Version", i32 3}89!23 = !{!"clang version 3.5.0 "}90!24 = !DILocalVariable(name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)91!25 = !DILocation(line: 10, scope: !4)92!26 = !DILocalVariable(name: "i1", line: 11, scope: !4, file: !5, type: !14)93!27 = !DILocation(line: 11, scope: !4)94!28 = !DILocation(line: 12, scope: !4)95