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llvm-mirror/test/CodeGen/BPF/BTF/ptr-func-3.ll
Yonghong Song 4e71c14bf1 [BPF] Do not generate BTF sections unnecessarily
If There is no types/non-empty strings, do not generate
.BTF section. If there is no func_info/line_info, do
not generate .BTF.ext section.

Signed-off-by: Yonghong Song <yhs@fb.com>

Differential Revision: https://reviews.llvm.org/D58936

llvm-svn: 355360
2019-03-05 01:01:21 +00:00

63 lines
2.9 KiB
LLVM

; 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:
; typedef int __int;
; __int (*a)(__int a, __int b);
; Compilation flag:
; clang -target bpf -O2 -g -S -emit-llvm t.c
@a = common dso_local local_unnamed_addr global i32 (i32, i32)* null, 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 68
; CHECK-NEXT: .long 68
; CHECK-NEXT: .long 11
; CHECK-NEXT: .long 0 # BTF_KIND_PTR(id = 1)
; CHECK-NEXT: .long 33554432 # 0x2000000
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 2)
; CHECK-NEXT: .long 218103810 # 0xd000002
; CHECK-NEXT: .long 3
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 3
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 3
; CHECK-NEXT: .long 1 # BTF_KIND_TYPEDEF(id = 3)
; CHECK-NEXT: .long 134217728 # 0x8000000
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 7 # BTF_KIND_INT(id = 4)
; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "__int" # string offset=1
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "int" # string offset=7
; 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 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64)
!7 = !DISubroutineType(types: !8)
!8 = !{!9, !9, !9}
!9 = !DIDerivedType(tag: DW_TAG_typedef, name: "__int", file: !3, line: 1, baseType: !10)
!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!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)"}