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1; Check that LoopSimplify creates debug locations in synthesized basic blocks.2; RUN: opt -passes=loop-simplify %s -S -o - | FileCheck %s3 4%union.anon = type { i32 }5%"Length" = type <{ %union.anon, i8, i8, i8, i8 }>6declare void @bar(ptr) #37@catchtypeinfo = external unnamed_addr constant { ptr, ptr, ptr }8declare i32 @__gxx_personality_v0(...)9declare void @f1()10declare void @f2()11declare void @f3()12 13; CHECK-LABEL: @foo14; CHECK: for.body.preheader:15; CHECK-NEXT: br label %for.body, !dbg [[PREHEADER_LOC:![0-9]+]]16; CHECK: for.end.loopexit:17; CHECK-NEXT: br label %for.end, !dbg [[LOOPEXIT_LOC:![0-9]+]]18 19define linkonce_odr hidden void @foo(ptr %begin, ptr %end) nounwind ssp uwtable align 2 !dbg !6 {20entry:21 %cmp.4 = icmp eq ptr %begin, %end, !dbg !722 br i1 %cmp.4, label %for.end, label %for.body, !dbg !823 24for.body: ; preds = %entry, %length.exit25 %begin.sink5 = phi ptr [ %incdec.ptr, %length.exit ], [ %begin, %entry ]26 tail call void @llvm.dbg.value(metadata ptr %begin.sink5, metadata !15, metadata !16), !dbg !1727 %m_type.i.i.i = getelementptr inbounds %"Length", ptr %begin.sink5, i64 0, i32 2, !dbg !928 %0 = load i8, ptr %m_type.i.i.i, align 1, !dbg !929 %cmp.i.i = icmp eq i8 %0, 9, !dbg !730 br i1 %cmp.i.i, label %if.then.i, label %length.exit, !dbg !831 32if.then.i: ; preds = %for.body33 tail call void @bar(ptr %begin.sink5) #7, !dbg !1034 br label %length.exit, !dbg !1035 36length.exit: ; preds = %for.body, %if.then.i37 %incdec.ptr = getelementptr inbounds %"Length", ptr %begin.sink5, i64 1, !dbg !1138 %cmp = icmp eq ptr %incdec.ptr, %end, !dbg !739 br i1 %cmp, label %for.end, label %for.body, !dbg !840 41for.end: ; preds = %length.exit, %entry42 ret void, !dbg !1243}44 45; CHECK-LABEL: @with_landingpad46; CHECK: catch.preheader:47; CHECK: br label %catch, !dbg [[LPAD_PREHEADER_LOC:![0-9]+]]48; CHECK: catch.preheader.split-lp:49; CHECK: br label %catch, !dbg [[LPAD_PREHEADER_LOC]]50 51define void @with_landingpad() uwtable ssp personality ptr @__gxx_personality_v0 {52entry:53 invoke void @f1() to label %try.cont19 unwind label %catch, !dbg !1354 55catch: ; preds = %if.else, %entry56 %0 = landingpad { ptr, i32 }57 catch ptr @catchtypeinfo, !dbg !1358 invoke void @f3() to label %if.else unwind label %eh.resume, !dbg !1359 60if.else: ; preds = %catch61 invoke void @f2() to label %try.cont19 unwind label %catch, !dbg !1362 63try.cont19: ; preds = %if.else, %entry64 ret void, !dbg !1365 66eh.resume: ; preds = %catch67 %1 = landingpad { ptr, i32 }68 cleanup catch ptr @catchtypeinfo, !dbg !1369 resume { ptr, i32 } undef, !dbg !1370}71 72; Function Attrs: nounwind readnone73declare void @llvm.dbg.value(metadata, metadata, metadata)74 75; CHECK-DAG: [[PREHEADER_LOC]] = !DILocation(line: 73, column: 13, scope: !{{[0-9]+}})76; CHECK-DAG: [[LOOPEXIT_LOC]] = !DILocation(line: 75, column: 9, scope: !{{[0-9]+}})77; CHECK-DAG: [[LPAD_PREHEADER_LOC]] = !DILocation(line: 85, column: 1, scope: !{{[0-9]+}})78 79!llvm.module.flags = !{!0, !1, !2}80!llvm.dbg.cu = !{!14}81!0 = !{i32 2, !"Dwarf Version", i32 4}82!1 = !{i32 2, !"Debug Info Version", i32 3}83!2 = !{i32 1, !"PIC Level", i32 2}84 85!3 = !{}86!4 = !DISubroutineType(types: !3)87!5 = !DIFile(filename: "Vector.h", directory: "/tmp")88!6 = distinct !DISubprogram(name: "destruct", scope: !5, file: !5, line: 71, type: !4, isLocal: false, isDefinition: true, scopeLine: 72, flags: DIFlagPrototyped, isOptimized: false, unit: !14, retainedNodes: !3)89!7 = !DILocation(line: 73, column: 38, scope: !6)90!8 = !DILocation(line: 73, column: 13, scope: !6)91!9 = !DILocation(line: 73, column: 27, scope: !6)92!10 = !DILocation(line: 74, column: 17, scope: !6)93!11 = !DILocation(line: 73, column: 46, scope: !6)94!12 = !DILocation(line: 75, column: 9, scope: !6)95!13 = !DILocation(line: 85, column: 1, scope: !6)96!14 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang",97 file: !5,98 isOptimized: true, flags: "-O2",99 splitDebugFilename: "abc.debug", emissionKind: 2)100!15 = !DILocalVariable(name: "begin", arg: 1, scope: !6, file: !5, line: 71)101!16 = !DIExpression()102!17 = !DILocation(line: 71, column: 32, scope: !6)103