1; RUN: opt -simplifycfg -S < %s | FileCheck %s 2 3%0 = type { i32*, i32* } 4 5@0 = external hidden constant [5 x %0], align 4 6 7define void @foo(i32) nounwind ssp !dbg !0 { 8Entry: 9 %1 = icmp slt i32 %0, 0, !dbg !5 10 br i1 %1, label %BB5, label %BB1, !dbg !5 11 12BB1: ; preds = %Entry 13 %2 = icmp sgt i32 %0, 4, !dbg !5 14 br i1 %2, label %BB5, label %BB2, !dbg !5 15 16BB2: ; preds = %BB1 17 %3 = shl i32 1, %0, !dbg !5 18 %4 = and i32 %3, 31, !dbg !5 19 %5 = icmp eq i32 %4, 0, !dbg !5 20 br i1 %5, label %BB5, label %BB3, !dbg !5 21 22;CHECK: icmp eq 23;CHECK-NEXT: getelementptr 24;CHECK-NEXT: icmp eq 25 26BB3: ; preds = %BB2 27 %6 = getelementptr inbounds [5 x %0], [5 x %0]* @0, i32 0, i32 %0, !dbg !6 28 call void @llvm.dbg.value(metadata %0* %6, metadata !7, metadata !{}), !dbg !12 29 %7 = icmp eq %0* %6, null, !dbg !13 30 br i1 %7, label %BB5, label %BB4, !dbg !13 31 32BB4: ; preds = %BB3 33 %8 = icmp slt i32 %0, 0, !dbg !5 34 ret void, !dbg !14 35 36BB5: ; preds = %BB3, %BB2, %BB1, %Entry 37 ret void, !dbg !14 38} 39 40declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone 41 42!llvm.dbg.cu = !{!2} 43 44!0 = distinct !DISubprogram(name: "foo", line: 231, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !2, file: !15, scope: !1, type: !3) 45!1 = !DIFile(filename: "a.c", directory: "/private/tmp") 46!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang (trunk 129006)", isOptimized: true, emissionKind: FullDebug, file: !15, enums: !4, retainedTypes: !4) 47!3 = !DISubroutineType(types: !4) 48!4 = !{null} 49!5 = !DILocation(line: 131, column: 2, scope: !0) 50!6 = !DILocation(line: 134, column: 2, scope: !0) 51!7 = !DILocalVariable(name: "bar", line: 232, scope: !8, file: !1, type: !9) 52!8 = distinct !DILexicalBlock(line: 231, column: 1, file: !15, scope: !0) 53!9 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, scope: !2, baseType: !10) 54!10 = !DIDerivedType(tag: DW_TAG_const_type, scope: !2, baseType: !11) 55!11 = !DIBasicType(tag: DW_TAG_base_type, name: "unsigned int", size: 32, align: 32, encoding: DW_ATE_unsigned) 56!12 = !DILocation(line: 232, column: 40, scope: !8) 57!13 = !DILocation(line: 234, column: 2, scope: !8) 58!14 = !DILocation(line: 274, column: 1, scope: !8) 59!15 = !DIFile(filename: "a.c", directory: "/private/tmp") 60