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