13610942cSWolfgang Pieb;RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s 2e018bbd8SWolfgang Pieb; 3e018bbd8SWolfgang Pieb; LexicalScope objects were not cleared when a nodebug function is handled in 4e018bbd8SWolfgang Pieb; LiveDebugValues. This may lead to an assertion in the constructor for LexicalScope, 5e018bbd8SWolfgang Pieb; triggered by LiveDebugValues when another (debug) function is handled later. 6e018bbd8SWolfgang Pieb; 7e018bbd8SWolfgang Pieb; This minimal example does not leave much to check for, so we just make sure we get 8e018bbd8SWolfgang Pieb; reasonable output, preserving function labels and a DBG_VALUE comment. 9e018bbd8SWolfgang Pieb; 10e018bbd8SWolfgang Pieb; CHECK-LABEL: foo: 11e018bbd8SWolfgang Pieb; CHECK-NEXT: Lfunc_begin0: 12e018bbd8SWolfgang Pieb; CHECK: Lfunc_end0: 13e018bbd8SWolfgang Pieb; CHECK-LABEL: bar: 14e018bbd8SWolfgang Pieb; CHECK-NEXT: Lfunc_begin1: 15e018bbd8SWolfgang Pieb; CHECK: #DEBUG_VALUE: foo:x <- 16e018bbd8SWolfgang Pieb; CHECK: Lfunc_end1: 17e018bbd8SWolfgang Pieb 18e018bbd8SWolfgang Piebdefine i32 @foo() { 19e018bbd8SWolfgang Piebentry: 20e018bbd8SWolfgang Pieb ret i32 0 21e018bbd8SWolfgang Pieb} 22e018bbd8SWolfgang Pieb 23e018bbd8SWolfgang Piebdefine i32 @bar(i32 %x) !dbg !50 { 24e018bbd8SWolfgang Piebentry: 25e018bbd8SWolfgang Pieb tail call void @llvm.dbg.value(metadata i32 %x, i64 0, metadata !41, metadata !43), !dbg !52 26e018bbd8SWolfgang Pieb %tobool.i = icmp eq i32 %x, 0 27e018bbd8SWolfgang Pieb br i1 %tobool.i, label %foo.exit, label %if.then.i 28e018bbd8SWolfgang Pieb 29e018bbd8SWolfgang Piebif.then.i: 30e018bbd8SWolfgang Pieb br label %foo.exit 31e018bbd8SWolfgang Pieb 32e018bbd8SWolfgang Piebfoo.exit: 33e018bbd8SWolfgang Pieb %x.addr.0.i = phi i32 [ 1, %if.then.i ], [ 0, %entry ] 34e018bbd8SWolfgang Pieb ret i32 %x.addr.0.i 35e018bbd8SWolfgang Pieb} 36e018bbd8SWolfgang Pieb 37e018bbd8SWolfgang Piebdeclare void @llvm.dbg.value(metadata, i64, metadata, metadata) 38e018bbd8SWolfgang Pieb 39e018bbd8SWolfgang Pieb!llvm.dbg.cu = !{!0, !3} 40e018bbd8SWolfgang Pieb!llvm.ident = !{!5, !5} 41e018bbd8SWolfgang Pieb!llvm.module.flags = !{!6, !7} 42e018bbd8SWolfgang Pieb 43e018bbd8SWolfgang Pieb!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 44e018bbd8SWolfgang Pieb!1 = !DIFile(filename: "foo.cpp", directory: "c:\temp") 45e018bbd8SWolfgang Pieb!2 = !{} 46e018bbd8SWolfgang Pieb!3 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !4, producer: "", isOptimized: true, runtimeVersion: 0, emissionKind: NoDebug, enums: !2) 47e018bbd8SWolfgang Pieb!4 = !DIFile(filename: "bar.cpp", directory: "c:\temp") 48e018bbd8SWolfgang Pieb!5 = !{!"clang version 4.0.0"} 49e018bbd8SWolfgang Pieb!6 = !{i32 2, !"Dwarf Version", i32 4} 50e018bbd8SWolfgang Pieb!7 = !{i32 2, !"Debug Info Version", i32 3} 51*2c864551SShiva Chen!36 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !37, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !40) 52e018bbd8SWolfgang Pieb!37 = !DISubroutineType(types: !38) 53e018bbd8SWolfgang Pieb!38 = !{!39, !39} 54e018bbd8SWolfgang Pieb!39 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 55e018bbd8SWolfgang Pieb!40 = !{!41} 56e018bbd8SWolfgang Pieb!41 = !DILocalVariable(name: "x", arg: 1, scope: !36, file: !1, line: 1, type: !39) 57e018bbd8SWolfgang Pieb!43 = !DIExpression() 58*2c864551SShiva Chen!50 = distinct !DISubprogram(name: "bar", scope: !4, file: !4, line: 3, type: !51, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !3, retainedNodes: !2) 59e018bbd8SWolfgang Pieb!51 = !DISubroutineType(types: !2) 60e018bbd8SWolfgang Pieb!52 = !DILocation(line: 1, scope: !36, inlinedAt: !53) 61e018bbd8SWolfgang Pieb!53 = distinct !DILocation(line: 5, scope: !50) 62