1 ; RUN: llc %s -filetype=obj -o - | llvm-dwarfdump - | FileCheck %s 2 ; 3 ; // Compile with -O1 4 ; typedef struct { 5 ; int a; 6 ; int b; 7 ; } Inner; 8 ; 9 ; typedef struct { 10 ; Inner inner[2]; 11 ; } Outer; 12 ; 13 ; int foo(Outer outer) { 14 ; Inner i1 = outer.inner[1]; 15 ; return i1.a; 16 ; } 17 ; 18 ; CHECK: DW_TAG_formal_parameter [3] 19 ; CHECK-NEXT: DW_AT_location [DW_FORM_data4] ([[LOC1:.*]]) 20 ; CHECK-NEXT: DW_AT_name {{.*}}"outer" 21 ; CHECK: DW_TAG_variable 22 ; CHECK-NEXT: DW_AT_location [DW_FORM_data4] ([[LOC2:.*]]) 23 ; CHECK-NEXT: "i1" 24 ; 25 ; CHECK: .debug_loc 26 ; CHECK: [[LOC1]]: Beginning address offset: 0x0000000000000000 27 ; CHECK-NEXT: Ending address offset: 0x0000000000000004 28 ; rdi, piece 0x00000008, piece 0x00000004, rsi, piece 0x00000004 29 ; CHECK-NEXT: Location description: 55 93 08 93 04 54 93 04 30 ; This location is split into two ranges with identical locations 31 ; because it comes from a DBG_VALUE %RSI followed by a DBG_VALUE %ESI. 32 ; CHECK: Beginning address offset: 0x0000000000000004 33 ; CHECK-NEXT: Ending address offset: 0x0000000000000008 34 ; CHECK-NEXT: Location description: 55 93 08 93 04 54 93 04 35 ; CHECK: [[LOC2]]: Beginning address offset: 0x0000000000000004 36 ; CHECK-NEXT: Ending address offset: 0x0000000000000008 37 ; rsi, piece 0x00000004 38 ; CHECK-NEXT: Location description: 54 93 04 39 40 ; 41 ; ModuleID = '/Volumes/Data/llvm/test/DebugInfo/X86/sroasplit-2.ll' 42 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 43 target triple = "x86_64-apple-macosx10.9.0" 44 45 ; Function Attrs: nounwind ssp uwtable 46 define i32 @foo(i64 %outer.coerce0, i64 %outer.coerce1) #0 !dbg !4 { 47 call void @llvm.dbg.value(metadata i64 %outer.coerce0, i64 0, metadata !24, metadata !25), !dbg !26 48 call void @llvm.dbg.declare(metadata !{null}, metadata !27, metadata !28), !dbg !26 49 call void @llvm.dbg.value(metadata i64 %outer.coerce1, i64 0, metadata !29, metadata !30), !dbg !26 50 call void @llvm.dbg.declare(metadata !{null}, metadata !31, metadata !32), !dbg !26 51 %outer.sroa.1.8.extract.trunc = trunc i64 %outer.coerce1 to i32, !dbg !33 52 call void @llvm.dbg.value(metadata i32 %outer.sroa.1.8.extract.trunc, i64 0, metadata !34, metadata !35), !dbg !33 53 %outer.sroa.1.12.extract.shift = lshr i64 %outer.coerce1, 32, !dbg !33 54 %outer.sroa.1.12.extract.trunc = trunc i64 %outer.sroa.1.12.extract.shift to i32, !dbg !33 55 call void @llvm.dbg.value(metadata i64 %outer.sroa.1.12.extract.shift, i64 0, metadata !34, metadata !35), !dbg !33 56 call void @llvm.dbg.value(metadata i32 %outer.sroa.1.12.extract.trunc, i64 0, metadata !34, metadata !35), !dbg !33 57 call void @llvm.dbg.declare(metadata !{null}, metadata !34, metadata !35), !dbg !33 58 ret i32 %outer.sroa.1.8.extract.trunc, !dbg !36 59 } 60 61 ; Function Attrs: nounwind readnone 62 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 63 64 ; Function Attrs: nounwind 65 declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #2 66 67 ; Function Attrs: nounwind readnone 68 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1 69 70 attributes #0 = { nounwind ssp uwtable "no-frame-pointer-elim"="true" } 71 attributes #1 = { nounwind readnone } 72 attributes #2 = { nounwind } 73 74 !llvm.dbg.cu = !{!0} 75 !llvm.module.flags = !{!21, !22} 76 !llvm.ident = !{!23} 77 78 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) 79 !1 = !DIFile(filename: "sroasplit-2.c", directory: "") 80 !2 = !{} 81 !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, variables: !2) 82 !5 = !DIFile(filename: "sroasplit-2.c", directory: "") 83 !6 = !DISubroutineType(types: !7) 84 !7 = !{!8, !9} 85 !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 86 !9 = !DIDerivedType(tag: DW_TAG_typedef, name: "Outer", line: 8, file: !1, baseType: !10) 87 !10 = !DICompositeType(tag: DW_TAG_structure_type, line: 6, size: 128, align: 32, file: !1, elements: !11) 88 !11 = !{!12} 89 !12 = !DIDerivedType(tag: DW_TAG_member, name: "inner", line: 7, size: 128, align: 32, file: !1, scope: !10, baseType: !13) 90 !13 = !DICompositeType(tag: DW_TAG_array_type, size: 128, align: 32, baseType: !14, elements: !19) 91 !14 = !DIDerivedType(tag: DW_TAG_typedef, name: "Inner", line: 4, file: !1, baseType: !15) 92 !15 = !DICompositeType(tag: DW_TAG_structure_type, line: 1, size: 64, align: 32, file: !1, elements: !16) 93 !16 = !{!17, !18} 94 !17 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 2, size: 32, align: 32, file: !1, scope: !15, baseType: !8) 95 !18 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 3, size: 32, align: 32, offset: 32, file: !1, scope: !15, baseType: !8) 96 !19 = !{!20} 97 !20 = !DISubrange(count: 2) 98 !21 = !{i32 2, !"Dwarf Version", i32 2} 99 !22 = !{i32 1, !"Debug Info Version", i32 3} 100 !23 = !{!"clang version 3.5.0 "} 101 !24 = !DILocalVariable(name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9) 102 !25 = !DIExpression(DW_OP_bit_piece, 0, 64) 103 !26 = !DILocation(line: 10, scope: !4) 104 !27 = !DILocalVariable(name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9) 105 !28 = !DIExpression(DW_OP_bit_piece, 64, 64) 106 !29 = !DILocalVariable(name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9) 107 !30 = !DIExpression(DW_OP_bit_piece, 96, 32) 108 !31 = !DILocalVariable(name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9) 109 !32 = !DIExpression(DW_OP_bit_piece, 64, 32) 110 !33 = !DILocation(line: 11, scope: !4) 111 !34 = !DILocalVariable(name: "i1", line: 11, scope: !4, file: !5, type: !14) 112 !35 = !DIExpression(DW_OP_bit_piece, 0, 32) 113 !36 = !DILocation(line: 12, scope: !4) 114
