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| ; RUN: opt %s -sroa -verify -S -o - | FileCheck %s
| ;
| ; Test that we can partial emit debug info for aggregates repeatedly
| ; split up by SROA.
| ;
| ; // Compile with -O1
| ; typedef struct {
| ; int a;
| ; long int b;
| ; } Inner;
| ;
| ; typedef struct {
| ; Inner inner[2];
| ; } Outer;
| ;
| ; int foo(Outer outer) {
| ; Inner i1 = outer.inner[1];
| ; return i1.a;
| ; }
| ;
|
| ; Verify that SROA creates a variable piece when splitting i1.
| ; CHECK: %[[I1:.*]] = alloca [12 x i8], align 4
| ; CHECK: call void @llvm.dbg.declare(metadata [12 x i8]* %[[I1]], metadata ![[VAR:[0-9]+]], metadata !DIExpression(DW_OP_LLVM_fragment, 32, 96))
| ; CHECK: call void @llvm.dbg.value(metadata i32 %[[A:.*]], metadata ![[VAR]], metadata !DIExpression(DW_OP_LLVM_fragment, 0, 32))
| ; CHECK: ret i32 %[[A]]
| ; Read Var and Piece:
| ; CHECK: ![[VAR]] = !DILocalVariable(name: "i1",{{.*}} line: 11,
|
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
| target triple = "x86_64-apple-macosx10.9.0"
|
| %struct.Outer = type { [2 x %struct.Inner] }
| %struct.Inner = type { i32, i64 }
|
| ; Function Attrs: nounwind ssp uwtable
| define i32 @foo(%struct.Outer* byval align 8 %outer) #0 !dbg !4 {
| entry:
| %i1 = alloca %struct.Inner, align 8
| call void @llvm.dbg.declare(metadata %struct.Outer* %outer, metadata !25, metadata !2), !dbg !26
| call void @llvm.dbg.declare(metadata %struct.Inner* %i1, metadata !27, metadata !2), !dbg !28
| %inner = getelementptr inbounds %struct.Outer, %struct.Outer* %outer, i32 0, i32 0, !dbg !28
| %arrayidx = getelementptr inbounds [2 x %struct.Inner], [2 x %struct.Inner]* %inner, i32 0, i64 1, !dbg !28
| %0 = bitcast %struct.Inner* %i1 to i8*, !dbg !28
| %1 = bitcast %struct.Inner* %arrayidx to i8*, !dbg !28
| call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %0, i8* align 8 %1, i64 16, i1 false), !dbg !28
| %a = getelementptr inbounds %struct.Inner, %struct.Inner* %i1, i32 0, i32 0, !dbg !29
| %2 = load i32, i32* %a, align 4, !dbg !29
| ret i32 %2, !dbg !29
| }
|
| ; Function Attrs: nounwind readnone
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
| ; Function Attrs: nounwind
| declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i1) #2
|
| attributes #0 = { nounwind ssp uwtable }
| attributes #1 = { nounwind readnone }
| attributes #2 = { nounwind }
|
| !llvm.dbg.cu = !{!0}
| !llvm.module.flags = !{!22, !23}
| !llvm.ident = !{!24}
|
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !{}, retainedTypes: !{}, globals: !{}, imports: !{})
| !1 = !DIFile(filename: "sroasplit-1.c", directory: "")
| !2 = !DIExpression()
| !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: !{})
| !5 = !DIFile(filename: "sroasplit-1.c", directory: "")
| !6 = !DISubroutineType(types: !7)
| !7 = !{!8, !9}
| !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
| !9 = !DIDerivedType(tag: DW_TAG_typedef, name: "Outer", line: 8, file: !1, baseType: !10)
| !10 = !DICompositeType(tag: DW_TAG_structure_type, line: 6, size: 256, align: 64, file: !1, elements: !11)
| !11 = !{!12}
| !12 = !DIDerivedType(tag: DW_TAG_member, name: "inner", line: 7, size: 256, align: 64, file: !1, scope: !10, baseType: !13)
| !13 = !DICompositeType(tag: DW_TAG_array_type, size: 256, align: 64, baseType: !14, elements: !20)
| !14 = !DIDerivedType(tag: DW_TAG_typedef, name: "Inner", line: 4, file: !1, baseType: !15)
| !15 = !DICompositeType(tag: DW_TAG_structure_type, line: 1, size: 128, align: 64, file: !1, elements: !16)
| !16 = !{!17, !18}
| !17 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 2, size: 32, align: 32, file: !1, scope: !15, baseType: !8)
| !18 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 3, size: 64, align: 64, offset: 64, file: !1, scope: !15, baseType: !19)
| !19 = !DIBasicType(tag: DW_TAG_base_type, name: "long int", size: 64, align: 64, encoding: DW_ATE_signed)
| !20 = !{!21}
| !21 = !DISubrange(count: 2)
| !22 = !{i32 2, !"Dwarf Version", i32 2}
| !23 = !{i32 1, !"Debug Info Version", i32 3}
| !24 = !{!"clang version 3.5.0 "}
| !25 = !DILocalVariable(name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
| !26 = !DILocation(line: 10, scope: !4)
| !27 = !DILocalVariable(name: "i1", line: 11, scope: !4, file: !5, type: !14)
| !28 = !DILocation(line: 11, scope: !4)
| !29 = !DILocation(line: 12, scope: !4)
|
|
