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1; RUN: llc < %s | FileCheck %s2target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"3target triple = "x86_64-unknown-linux-gnu"4 5@x = common global i32 0, align 46 7define i32 @main() !dbg !4 {8entry:9 %0 = load volatile i32, ptr @x, align 4, !dbg !9, !tbaa !1010 %add = add nsw i32 %0, 24, !dbg !911 store volatile i32 %add, ptr @x, align 4, !dbg !9, !tbaa !1012 %1 = load volatile i32, ptr @x, align 4, !dbg !14, !tbaa !1013 %add1 = add nsw i32 %1, 2, !dbg !1414 store volatile i32 %add1, ptr @x, align 4, !dbg !14, !tbaa !1015 %2 = load volatile i32, ptr @x, align 4, !dbg !15, !tbaa !1016 %add2 = add nsw i32 %2, 3, !dbg !1517 store volatile i32 %add2, ptr @x, align 4, !dbg !15, !tbaa !1018 %3 = load volatile i32, ptr @x, align 4, !dbg !16, !tbaa !1019 %add3 = add nsw i32 %3, 4, !dbg !1620 store volatile i32 %add3, ptr @x, align 4, !dbg !16, !tbaa !1021 tail call void @exit(i32 24), !dbg !1722 unreachable, !dbg !1723}24 25; CHECK-LABEL: main:26; CHECK: .loc 1 327; CHECK: .loc 1 428; CHECK: .loc 1 529; CHECK: .loc 1 630; CHECK: .loc 1 731; CHECK: .loc 1 832; CHECK-NEXT: movl $24, %edi33; CHECK-NEXT: callq exit34 35declare void @exit(i32)36 37!llvm.dbg.cu = !{!0}38!llvm.module.flags = !{!6, !7}39 40!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 (trunk 259383) (llvm/trunk 259385)", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2)41!1 = !DIFile(filename: "t.c", directory: "/home/majnemer/llvm/src")42!2 = !{}43!4 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !0, retainedNodes: !2)44!5 = !DISubroutineType(types: !2)45!6 = !{i32 2, !"Dwarf Version", i32 4}46!7 = !{i32 2, !"Debug Info Version", i32 3}47!9 = !DILocation(line: 4, column: 5, scope: !4)48!10 = !{!11, !11, i64 0}49!11 = !{!"int", !12, i64 0}50!12 = !{!"omnipotent char", !13, i64 0}51!13 = !{!"Simple C/C++ TBAA"}52!14 = !DILocation(line: 5, column: 5, scope: !4)53!15 = !DILocation(line: 6, column: 5, scope: !4)54!16 = !DILocation(line: 7, column: 5, scope: !4)55!17 = !DILocation(line: 8, column: 3, scope: !4)56