1; RUN: opt -S -passes=gvn-hoist < %s | FileCheck %s 2 3; Check that the debug info is dropped as per the debug info update guide 4 5@G = external global i32, align 4 6 7; CHECK-LABEL: @foo 8; CHECK-NOT: store {{.*}}dbg 9define void @foo(i32 %c1) !dbg !6 { 10entry: 11 call void @llvm.dbg.value(metadata i32 0, metadata !9, metadata !DIExpression()), !dbg !11 12 switch i32 %c1, label %exit1 [ 13 i32 0, label %sw0 14 i32 1, label %sw1 15 ], !dbg !11 16 17sw0: ; preds = %entry 18 store i32 1, ptr @G, align 4, !dbg !12 19 br label %exit, !dbg !13 20 21sw1: ; preds = %entry 22 store i32 1, ptr @G, align 4, !dbg !14 23 br label %exit, !dbg !15 24 25exit1: ; preds = %entry 26 store i32 1, ptr @G, align 4, !dbg !16 27 ret void, !dbg !17 28 29exit: ; preds = %sw1, %sw0 30 ret void, !dbg !18 31} 32 33; Function Attrs: nofree nosync nounwind readnone speculatable willreturn 34declare void @llvm.dbg.value(metadata, metadata, metadata) #0 35 36attributes #0 = { nofree nosync nounwind readnone speculatable willreturn } 37 38!llvm.dbg.cu = !{!0} 39!llvm.debugify = !{!3, !4} 40!llvm.module.flags = !{!5} 41 42!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 43!1 = !DIFile(filename: "abc.ll", directory: "/") 44!2 = !{} 45!3 = !{i32 8} 46!4 = !{i32 1} 47!5 = !{i32 2, !"Debug Info Version", i32 3} 48!6 = distinct !DISubprogram(name: "foo", linkageName: "foo", scope: null, file: !1, line: 1, type: !7, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !8) 49!7 = !DISubroutineType(types: !2) 50!8 = !{!9} 51!9 = !DILocalVariable(name: "1", scope: !6, file: !1, line: 1, type: !10) 52!10 = !DIBasicType(name: "ty32", size: 32, encoding: DW_ATE_unsigned) 53!11 = !DILocation(line: 1, column: 1, scope: !6) 54!12 = !DILocation(line: 2, column: 1, scope: !6) 55!13 = !DILocation(line: 3, column: 1, scope: !6) 56!14 = !DILocation(line: 4, column: 1, scope: !6) 57!15 = !DILocation(line: 5, column: 1, scope: !6) 58!16 = !DILocation(line: 6, column: 1, scope: !6) 59!17 = !DILocation(line: 7, column: 1, scope: !6) 60!18 = !DILocation(line: 8, column: 1, scope: !6) 61