1 # RUN: not llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o /dev/null %s 2>&1 | FileCheck %s 2 3 --- | 4 5 define i32 @test(i32 %x) #0 !dbg !4 { 6 entry: 7 %x.addr = alloca i32, align 4 8 store i32 %x, i32* %x.addr, align 4 9 call void @llvm.dbg.declare(metadata i32* %x.addr, metadata !12, metadata !13), !dbg !14 10 %0 = load i32, i32* %x.addr, align 4, !dbg !15 11 ret i32 %0, !dbg !15 12 } 13 14 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 15 16 attributes #0 = { nounwind "no-frame-pointer-elim"="false" } 17 attributes #1 = { nounwind readnone } 18 19 !llvm.dbg.cu = !{!0} 20 !llvm.module.flags = !{!9, !10} 21 !llvm.ident = !{!11} 22 23 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0", isOptimized: false, runtimeVersion: 0, emissionKind: 1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2) 24 !1 = !DIFile(filename: "test.ll", directory: "") 25 !2 = !{} 26 !3 = !{!4} 27 !4 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, variables: !2) 28 !5 = !DIFile(filename: "test.c", directory: "") 29 !6 = !DISubroutineType(types: !7) 30 !7 = !{!8, !8} 31 !8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 32 !9 = !{i32 2, !"Dwarf Version", i32 4} 33 !10 = !{i32 2, !"Debug Info Version", i32 3} 34 !11 = !{!"clang version 3.7.0"} 35 !12 = !DILocalVariable(name: "x", arg: 1, scope: !4, file: !5, line: 4, type: !8) 36 !13 = !DIExpression() 37 !14 = !DILocation(line: 4, scope: !4) 38 !15 = !DILocation(line: 8, scope: !4) 39 40 ... 41 --- 42 name: test 43 isSSA: true 44 tracksRegLiveness: true 45 registers: 46 - { id: 0, class: gr32 } 47 frameInfo: 48 maxAlignment: 4 49 stack: 50 - { id: 0, name: x.addr, size: 4, alignment: 4 } 51 body: | 52 bb.0.entry: 53 %0 = COPY %edi 54 ; CHECK: [[@LINE+1]]:21: use of undefined metadata '!42' 55 DBG_VALUE _, 0, !42, !13 56 MOV32mr %stack.0.x.addr, 1, _, 0, _, %0 57 %eax = COPY %0 58 RETQ %eax 59 ... 60
