1 ; RUN: llc < %s | FileCheck %s 2 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 3 target triple = "x86_64-unknown-linux-gnu" 4 5 @x = common global i32 0, align 4 6 7 define i32 @main() !dbg !4 { 8 entry: 9 %0 = load volatile i32, i32* @x, align 4, !dbg !9, !tbaa !10 10 %add = add nsw i32 %0, 24, !dbg !9 11 store volatile i32 %add, i32* @x, align 4, !dbg !9, !tbaa !10 12 %1 = load volatile i32, i32* @x, align 4, !dbg !14, !tbaa !10 13 %add1 = add nsw i32 %1, 2, !dbg !14 14 store volatile i32 %add1, i32* @x, align 4, !dbg !14, !tbaa !10 15 %2 = load volatile i32, i32* @x, align 4, !dbg !15, !tbaa !10 16 %add2 = add nsw i32 %2, 3, !dbg !15 17 store volatile i32 %add2, i32* @x, align 4, !dbg !15, !tbaa !10 18 %3 = load volatile i32, i32* @x, align 4, !dbg !16, !tbaa !10 19 %add3 = add nsw i32 %3, 4, !dbg !16 20 store volatile i32 %add3, i32* @x, align 4, !dbg !16, !tbaa !10 21 tail call void @exit(i32 24), !dbg !17 22 unreachable, !dbg !17 23 } 24 25 ; CHECK-LABEL: main: 26 ; CHECK: .loc 1 3 27 ; CHECK: .loc 1 4 28 ; CHECK: .loc 1 5 29 ; CHECK: .loc 1 6 30 ; CHECK: .loc 1 7 31 ; CHECK: .loc 1 8 32 ; CHECK-NEXT: movl $24, %edi 33 ; CHECK-NEXT: callq exit 34 35 declare 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
