1 # RUN: llc -march=x86-64 -run-pass none -o - %s | FileCheck %s
2 # This test ensures that the MIR parser parses the stack object's debug info
5 declare void @llvm.dbg.declare(metadata, metadata, metadata) #0
7 define void @foo() #1 {
9 %x.i = alloca i8, align 1
10 %y.i = alloca [256 x i8], align 16
11 %0 = bitcast [256 x i8]* %y.i to i8*
15 %1 = bitcast [256 x i8]* %y.i to i8*
16 call void @llvm.lifetime.end(i64 -1, i8* %1) #3
17 call void @llvm.lifetime.start(i64 -1, i8* %0) #3
18 call void @llvm.dbg.declare(metadata i8* %0, metadata !4, metadata !DIExpression()) #3, !dbg !7
22 declare void @llvm.lifetime.start(i64, i8* nocapture) #2
24 declare void @llvm.lifetime.end(i64, i8* nocapture) #2
26 attributes #0 = { nounwind readnone }
27 attributes #1 = { nounwind ssp uwtable }
28 attributes #2 = { nounwind argmemonly }
29 attributes #3 = { nounwind }
32 !llvm.module.flags = !{!3}
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: "")
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)
44 !10 = !DISubrange(count: 256)
48 tracksRegLiveness: true
53 # CHECK: - { id: 0, name: y.i, type: default, offset: 0, size: 256, alignment: 16,
54 # CHECK-NEXT: callee-saved-register: '', di-variable: '!4', di-expression: '!DIExpression()',
55 # CHECK-NEXT: di-location: '!10' }
57 - { id: 0, name: y.i, offset: 0, size: 256, alignment: 16, di-variable: '!4',
58 di-expression: '!DIExpression()', di-location: '!7' }
61 successors: %bb.1.for.body
63 successors: %bb.1.for.body
65 DBG_VALUE %stack.0.y.i, 0, !4, !DIExpression(), debug-location !7