fwd-no-define.ll
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; RUN: llc -march=bpfel -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s
; RUN: llc -march=bpfeb -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s
; Source code:
; struct t1;
; struct t2 {struct t1 *p;} a;
; Compilation flag:
; clang -target bpf -O2 -g -S -emit-llvm t.c
%struct.t2 = type { %struct.t1* }
%struct.t1 = type opaque
@a = common dso_local local_unnamed_addr global %struct.t2 zeroinitializer, align 8, !dbg !0
!llvm.dbg.cu = !{!2}
!llvm.module.flags = !{!11, !12, !13}
!llvm.ident = !{!14}
; CHECK: .section .BTF,"",@progbits
; CHECK-NEXT: .short 60319 # 0xeb9f
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .long 24
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 48
; CHECK-NEXT: .long 48
; CHECK-NEXT: .long 9
; CHECK-NEXT: .long 1 # BTF_KIND_STRUCT(id = 1)
; CHECK-NEXT: .long 67108865 # 0x4000001
; CHECK-NEXT: .long 8
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 0 # BTF_KIND_PTR(id = 2)
; CHECK-NEXT: .long 33554432 # 0x2000000
; CHECK-NEXT: .long 3
; CHECK-NEXT: .long 6 # BTF_KIND_FWD(id = 3)
; CHECK-NEXT: .long 117440512 # 0x7000000
; CHECK-NEXT: .long 0
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "t2" # string offset=1
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .byte 112 # string offset=4
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "t1" # string offset=6
; CHECK-NEXT: .byte 0
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
!1 = distinct !DIGlobalVariable(name: "a", scope: !2, file: !3, line: 2, type: !6, isLocal: false, isDefinition: true)
!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 8.0.0 (trunk 344789) (llvm/trunk 344782)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None)
!3 = !DIFile(filename: "t.c", directory: "/home/yhs/tmp")
!4 = !{}
!5 = !{!0}
!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t2", file: !3, line: 2, size: 64, elements: !7)
!7 = !{!8}
!8 = !DIDerivedType(tag: DW_TAG_member, name: "p", scope: !6, file: !3, line: 2, baseType: !9, size: 64)
!9 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 64)
!10 = !DICompositeType(tag: DW_TAG_structure_type, name: "t1", file: !3, line: 1, flags: DIFlagFwdDecl)
!11 = !{i32 2, !"Dwarf Version", i32 4}
!12 = !{i32 2, !"Debug Info Version", i32 3}
!13 = !{i32 1, !"wchar_size", i32 4}
!14 = !{!"clang version 8.0.0 (trunk 344789) (llvm/trunk 344782)"}