test/CodeGen/BPF/BTF/global-var-sec-readonly.ll

   1 ; RUN: llc -march=bpfel -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s
   2 ; RUN: llc -march=bpfeb -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s
   3
   4 ; Source code:
   5 ;   const int gv1 __attribute__((section("maps")));
   6 ;   const int gv2 __attribute__((section("maps"))) = 5;
   7 ; Compilation flag:
   8 ;   clang -target bpf -O2 -g -S -emit-llvm test.c
   9
  10 @gv2 = dso_local local_unnamed_addr constant i32 5, section "maps", align 4, !dbg !0
  11 @gv1 = dso_local local_unnamed_addr constant i32 0, section "maps", align 4, !dbg !6
  12
  13 ; CHECK:             .section        .BTF,"",@progbits
  14 ; CHECK-NEXT:        .short  60319                   # 0xeb9f
  15 ; CHECK-NEXT:        .byte   1
  16 ; CHECK-NEXT:        .byte   0
  17 ; CHECK-NEXT:        .long   24
  18 ; CHECK-NEXT:        .long   0
  19 ; CHECK-NEXT:        .long   96
  20 ; CHECK-NEXT:        .long   96
  21 ; CHECK-NEXT:        .long   18
  22 ; CHECK-NEXT:        .long   0                       # BTF_KIND_CONST(id = 1)
  23 ; CHECK-NEXT:        .long   167772160               # 0xa000000
  24 ; CHECK-NEXT:        .long   2
  25 ; CHECK-NEXT:        .long   1                       # BTF_KIND_INT(id = 2)
  26 ; CHECK-NEXT:        .long   16777216                # 0x1000000
  27 ; CHECK-NEXT:        .long   4
  28 ; CHECK-NEXT:        .long   16777248                # 0x1000020
  29 ; CHECK-NEXT:        .long   5                       # BTF_KIND_VAR(id = 3)
  30 ; CHECK-NEXT:        .long   234881024               # 0xe000000
  31 ; CHECK-NEXT:        .long   1
  32 ; CHECK-NEXT:        .long   1
  33 ; CHECK-NEXT:        .long   9                       # BTF_KIND_VAR(id = 4)
  34 ; CHECK-NEXT:        .long   234881024               # 0xe000000
  35 ; CHECK-NEXT:        .long   1
  36 ; CHECK-NEXT:        .long   1
  37 ; CHECK-NEXT:        .long   13                      # BTF_KIND_DATASEC(id = 5)
  38 ; CHECK-NEXT:        .long   251658242               # 0xf000002
  39 ; CHECK-NEXT:        .long   0
  40 ; CHECK-NEXT:        .long   3
  41 ; CHECK-NEXT:        .long   gv2
  42 ; CHECK-NEXT:        .long   4
  43 ; CHECK-NEXT:        .long   4
  44 ; CHECK-NEXT:        .long   gv1
  45 ; CHECK-NEXT:        .long   4
  46 ; CHECK-NEXT:        .byte   0                       # string offset=0
  47 ; CHECK-NEXT:        .ascii  "int"                   # string offset=1
  48 ; CHECK-NEXT:        .byte   0
  49 ; CHECK-NEXT:        .ascii  "gv2"                   # string offset=5
  50 ; CHECK-NEXT:        .byte   0
  51 ; CHECK-NEXT:        .ascii  "gv1"                   # string offset=9
  52 ; CHECK-NEXT:        .byte   0
  53 ; CHECK-NEXT:        .ascii  "maps"                  # string offset=13
  54 ; CHECK-NEXT:        .byte   0
  55
  56 !llvm.dbg.cu = !{!2}
  57 !llvm.module.flags = !{!10, !11, !12}
  58 !llvm.ident = !{!13}
  59
  60 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
  61 !1 = distinct !DIGlobalVariable(name: "gv2", scope: !2, file: !3, line: 2, type: !8, isLocal: false, isDefinition: true)
  62 !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 8.0.20181009 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None)
  63 !3 = !DIFile(filename: "test.c", directory: "/home/yhs/work/tests/llvm/bug")
  64 !4 = !{}
  65 !5 = !{!0, !6}
  66 !6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
  67 !7 = distinct !DIGlobalVariable(name: "gv1", scope: !2, file: !3, line: 1, type: !8, isLocal: false, isDefinition: true)
  68 !8 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !9)
  69 !9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
  70 !10 = !{i32 2, !"Dwarf Version", i32 4}
  71 !11 = !{i32 2, !"Debug Info Version", i32 3}
  72 !12 = !{i32 1, !"wchar_size", i32 4}
  73 !13 = !{!"clang version 8.0.20181009 "}