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1# RUN: llc -mtriple=x86_64 -run-pass none -o - %s | FileCheck %s2# This test ensures that the MIR parser parses the stack object's debug info3# correctly.4--- |5 declare void @llvm.dbg.declare(metadata, metadata, metadata) #06 7 define void @foo() #1 {8 entry:9 %x.i = alloca i8, align 110 %y.i = alloca [256 x i8], align 1611 %0 = bitcast ptr %y.i to ptr12 br label %for.body13 14 for.body:15 %1 = bitcast ptr %y.i to ptr16 call void @llvm.lifetime.end(i64 -1, ptr %1) #317 call void @llvm.lifetime.start(i64 -1, ptr %0) #318 call void @llvm.dbg.declare(metadata ptr %0, metadata !4, metadata !DIExpression()) #3, !dbg !719 br label %for.body20 }21 22 declare void @llvm.lifetime.start(i64, ptr nocapture) #223 24 declare void @llvm.lifetime.end(i64, ptr nocapture) #225 26 attributes #0 = { nounwind readnone }27 attributes #1 = { nounwind ssp uwtable }28 attributes #2 = { nounwind argmemonly }29 attributes #3 = { nounwind }30 31 !llvm.dbg.cu = !{!0}32 !llvm.module.flags = !{!3}33 34 !0 = distinct !DICompileUnit(language: DW_LANG_C89, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2)35 !1 = !DIFile(filename: "t.c", directory: "")36 !2 = !{}37 !3 = !{i32 1, !"Debug Info Version", i32 3}38 !4 = !DILocalVariable(name: "x", scope: !5, file: !1, line: 16, type: !8)39 !5 = distinct !DISubprogram(scope: null, isLocal: false, isDefinition: true, isOptimized: false, unit: !0)40 !6 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)41 !7 = !DILocation(line: 0, scope: !5)42 !8 = !DICompositeType(tag: DW_TAG_array_type, baseType: !6, size: 2048, align: 8, elements: !9)43 !9 = !{!10}44 !10 = !DISubrange(count: 256)45...46---47name: foo48tracksRegLiveness: true49frameInfo:50 maxAlignment: 1651# CHECK-LABEL: foo52# CHECK: stack:53# CHECK: - { id: 0, name: y.i, type: default, offset: 0, size: 256, alignment: 16,54# CHECK-NEXT: callee-saved-register: '', callee-saved-restored: true,55# CHECK-NEXT: debug-info-variable: '!4', debug-info-expression: '!DIExpression()',56# CHECK-NEXT: debug-info-location: '!10' }57stack:58 - { id: 0, name: y.i, offset: 0, size: 256, alignment: 16,59 debug-info-variable: '!4', debug-info-expression: '!DIExpression()',60 debug-info-location: '!7' }61body: |62 bb.0.entry:63 successors: %bb.1.for.body64 bb.1.for.body:65 successors: %bb.1.for.body66 67 DBG_VALUE %stack.0.y.i, 0, !4, !DIExpression(), debug-location !768 JMP_1 %bb.1.for.body69...70