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: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2) 24 !1 = !DIFile(filename: "test.ll", directory: "") 25 !2 = !{} 26 !4 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2) 27 !5 = !DIFile(filename: "test.c", directory: "") 28 !6 = !DISubroutineType(types: !7) 29 !7 = !{!8, !8} 30 !8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 31 !9 = !{i32 2, !"Dwarf Version", i32 4} 32 !10 = !{i32 2, !"Debug Info Version", i32 3} 33 !11 = !{!"clang version 3.7.0"} 34 !12 = !DILocalVariable(name: "x", arg: 1, scope: !4, file: !5, line: 4, type: !8) 35 !13 = !DIExpression() 36 !14 = !DILocation(line: 4, scope: !4) 37 !15 = !DILocation(line: 8, scope: !4) 38 39 ... 40 --- 41 name: test 42 isSSA: true 43 tracksRegLiveness: true 44 registers: 45 - { id: 0, class: gr32 } 46 frameInfo: 47 maxAlignment: 4 48 stack: 49 - { id: 0, name: x.addr, size: 4, alignment: 4 } 50 body: | 51 bb.0.entry: 52 %0 = COPY %edi 53 ; CHECK: [[@LINE+1]]:21: use of undefined metadata '!42' 54 DBG_VALUE _, 0, !42, !13 55 MOV32mr %stack.0.x.addr, 1, _, 0, _, %0 56 %eax = COPY %0 57 RETQ %eax 58 ... 59
