1 ; RUN: llc -mtriple=x86_64-apple-darwin -O0 -filetype=obj -o - < %s | llvm-dwarfdump -v -debug-info - | FileCheck %s 2 ; PR33157. Don't crash on duplicate dbg.declare. 3 ; CHECK: DW_TAG_formal_parameter 4 ; CHECK: DW_AT_location [DW_FORM_exprloc] 5 ; CHECK-NOT: DW_AT_location 6 @g = external global i32 7 @h = external global i32 8 9 declare void @llvm.dbg.declare(metadata, metadata, metadata) 10 11 define void @f(i32* byval %p, i1 %c) !dbg !5 { 12 br i1 %c, label %x, label %y 13 14 x: 15 call void @llvm.dbg.declare(metadata i32* %p, metadata !10, metadata !DIExpression()), !dbg !12 16 store i32 42, i32* @g, !dbg !12 17 br label %done 18 19 y: 20 call void @llvm.dbg.declare(metadata i32* %p, metadata !10, metadata !DIExpression()), !dbg !12 21 store i32 42, i32* @h, !dbg !12 22 br label %done 23 24 done: 25 ret void 26 } 27 28 !llvm.dbg.cu = !{!0} 29 !llvm.module.flags = !{!22, !23} 30 31 !0 = distinct !DICompileUnit(language: DW_LANG_ObjC, file: !1, producer: "clang version 5.0.0 ", isOptimized: true, runtimeVersion: 2, emissionKind: FullDebug) 32 !1 = !DIFile(filename: "<stdin>", directory: "C:\5Csrc\5Cllvm-project\5Cbuild") 33 !5 = distinct !DISubprogram(name: "f", isLocal: true, isDefinition: true, scopeLine: 37, flags: DIFlagPrototyped, isOptimized: true, unit: !0, type: !99, scope: !1) 34 !6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 35 !10 = !DILocalVariable(name: "aRect", arg: 1, scope: !11, file: !1, line: 38, type: !6) 36 !11 = distinct !DILexicalBlock(scope: !98, file: !1, line: 38) 37 !12 = !DILocation(line: 43, scope: !11, inlinedAt: !13) 38 !13 = distinct !DILocation(line: 43, scope: !5) 39 !22 = !{i32 2, !"Dwarf Version", i32 4} 40 !23 = !{i32 2, !"Debug Info Version", i32 3} 41 !62 = !{!10} 42 !98 = distinct !DISubprogram(name: "NSMaxX", scope: !1, file: !1, line: 27, isLocal: true, isDefinition: true, scopeLine: 27, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !62, type: !99) 43 !99 = !DISubroutineType(types: !100) 44 !100 = !{null} 45
