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1; RUN: opt -S -passes=strip-nonlinetable-debuginfo %s -o %t2; RUN: cat %t | FileCheck %s3; RUN: cat %t | FileCheck %s --check-prefix=NEGATIVE4; void f(volatile int *i) {5; while (--*i) {}6; }7source_filename = "/tmp/loop.c"8target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"9target triple = "x86_64-apple-macosx10.12.0"10 11define void @f(ptr %i) local_unnamed_addr #0 !dbg !7 {12entry:13 tail call void @llvm.dbg.value(metadata ptr %i, metadata !14, metadata !15), !dbg !1614 br label %while.cond, !dbg !1715 16while.cond: ; preds = %while.cond, %entry17 %0 = load volatile i32, ptr %i, align 4, !dbg !18, !tbaa !1918 %dec = add nsw i32 %0, -1, !dbg !1819 store volatile i32 %dec, ptr %i, align 4, !dbg !18, !tbaa !1920 %tobool = icmp eq i32 %dec, 0, !dbg !1721 ; CHECK: !llvm.loop ![[LOOP:[0-9]+]]22 br i1 %tobool, label %while.end, label %while.cond, !dbg !17, !llvm.loop !2323 24while.end: ; preds = %while.cond25 ret void, !dbg !2526}27 28; Function Attrs: nounwind readnone29declare void @llvm.dbg.value(metadata, metadata, metadata) #130 31attributes #0 = { nounwind ssp uwtable }32attributes #1 = { nounwind readnone }33 34!llvm.dbg.cu = !{!0}35!llvm.module.flags = !{!3, !4, !5}36!llvm.ident = !{!6}37 38; CHECK: ![[CU:.*]] = distinct !DICompileUnit(language: DW_LANG_C99,39; CHECK-SAME: emissionKind: LineTablesOnly40; NEGATIVE-NOT: !DICompileUnit({{.*}} emissionKind: FullDebug41!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 5.0.0 (trunk 298880) (llvm/trunk 298875)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)42!1 = !DIFile(filename: "/tmp/loop.c", directory: "/")43!2 = !{}44!3 = !{i32 2, !"Dwarf Version", i32 4}45!4 = !{i32 2, !"Debug Info Version", i32 3}46!5 = !{i32 1, !"PIC Level", i32 2}47!6 = !{!"clang version 5.0.0 (trunk 298880) (llvm/trunk 298875)"}48; CHECK: ![[F:[0-9]]] = distinct !DISubprogram(name: "f", scope: !149!7 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !13)50!8 = !DISubroutineType(types: !9)51!9 = !{null, !10}52!10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64)53!11 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !12)54; NEGATIVE-NOT: !DIBasicType(name: "int",55!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)56!13 = !{!14}57!14 = !DILocalVariable(name: "i", arg: 1, scope: !7, file: !1, line: 1, type: !10)58!15 = !DIExpression()59!16 = !DILocation(line: 1, column: 22, scope: !7)60; CHECK: ![[BEGIN:[0-9]+]] = !DILocation(line: 2, column: 3, scope: ![[F]])61!17 = !DILocation(line: 2, column: 3, scope: !7)62!18 = !DILocation(line: 2, column: 10, scope: !7)63!19 = !{!20, !20, i64 0}64!20 = !{!"int", !21, i64 0}65!21 = !{!"omnipotent char", !22, i64 0}66!22 = !{!"Simple C/C++ TBAA"}67; CHECK: ![[LOOP]] = distinct !{![[LOOP]], ![[BEGIN]], ![[END:[0-9]+]]}68!23 = distinct !{!23, !17, !24}69; CHECK: ![[END]] = !DILocation(line: 3, column: 3, scope: ![[F]])70!24 = !DILocation(line: 3, column: 3, scope: !7)71!25 = !DILocation(line: 4, column: 1, scope: !7)72