1 ; A by-value struct is a register-indirect value (breg). 2 ; RUN: llc %s -filetype=asm -o - | FileCheck %s 3 4 ; CHECK: Lsection_info: 5 ; CHECK: DW_AT_location 6 ; CHECK-NEXT: .byte 112 7 ; 112 = 0x70 = DW_OP_breg0 8 9 ; rdar://problem/13658587 10 ; 11 ; Generated from 12 ; 13 ; struct five 14 ; { 15 ; int a; 16 ; int b; 17 ; int c; 18 ; int d; 19 ; int e; 20 ; }; 21 ; 22 ; int 23 ; return_five_int (struct five f) 24 ; { 25 ; return f.a; 26 ; } 27 28 target 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-n32:64-S128" 29 target triple = "arm64-apple-ios3.0.0" 30 31 %struct.five = type { i32, i32, i32, i32, i32 } 32 33 ; Function Attrs: nounwind ssp 34 define i32 @return_five_int(%struct.five* %f) #0 !dbg !4 { 35 entry: 36 call void @llvm.dbg.declare(metadata %struct.five* %f, metadata !17, metadata !DIExpression(DW_OP_deref)), !dbg !18 37 %a = getelementptr inbounds %struct.five, %struct.five* %f, i32 0, i32 0, !dbg !19 38 %0 = load i32, i32* %a, align 4, !dbg !19 39 ret i32 %0, !dbg !19 40 } 41 42 ; Function Attrs: nounwind readnone 43 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 44 45 attributes #0 = { nounwind ssp } 46 attributes #1 = { nounwind readnone } 47 48 !llvm.dbg.cu = !{!0} 49 !llvm.module.flags = !{!16, !20} 50 51 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "LLVM version 3.4 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) 52 !1 = !DIFile(filename: "struct_by_value.c", directory: "") 53 !2 = !{} 54 !4 = distinct !DISubprogram(name: "return_five_int", line: 13, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 14, file: !1, scope: !5, type: !6, variables: !2) 55 !5 = !DIFile(filename: "struct_by_value.c", directory: "") 56 !6 = !DISubroutineType(types: !7) 57 !7 = !{!8, !9} 58 !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 59 !9 = !DICompositeType(tag: DW_TAG_structure_type, name: "five", line: 1, size: 160, align: 32, file: !1, elements: !10) 60 !10 = !{!11, !12, !13, !14, !15} 61 !11 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 3, size: 32, align: 32, file: !1, scope: !9, baseType: !8) 62 !12 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 4, size: 32, align: 32, offset: 32, file: !1, scope: !9, baseType: !8) 63 !13 = !DIDerivedType(tag: DW_TAG_member, name: "c", line: 5, size: 32, align: 32, offset: 64, file: !1, scope: !9, baseType: !8) 64 !14 = !DIDerivedType(tag: DW_TAG_member, name: "d", line: 6, size: 32, align: 32, offset: 96, file: !1, scope: !9, baseType: !8) 65 !15 = !DIDerivedType(tag: DW_TAG_member, name: "e", line: 7, size: 32, align: 32, offset: 128, file: !1, scope: !9, baseType: !8) 66 !16 = !{i32 2, !"Dwarf Version", i32 2} 67 !17 = !DILocalVariable(name: "f", line: 13, arg: 1, scope: !4, file: !5, type: !9) 68 !18 = !DILocation(line: 13, scope: !4) 69 !19 = !DILocation(line: 16, scope: !4) 70 !20 = !{i32 1, !"Debug Info Version", i32 3} 71
