lld/test/wasm/local-symbols.ll

   1 ; Test that internal symbols can still be GC'd when with --export-dynamic.
   2 ; RUN: llc -mcpu=mvp -filetype=obj %s -o %t.o
   3 ; RUN: wasm-ld --export-dynamic -o %t.wasm %t.o
   4 ; RUN: obj2yaml %t.wasm | FileCheck %s
   5
   6 target triple = "wasm32-unknown-unknown"
   7
   8 @foo = default global i32 1, align 4
   9 @bar = internal default global i32 3, align 4
  10
  11 define internal i32 @baz() local_unnamed_addr {
  12 entry:
  13   %0 = load i32, ptr @bar, align 4
  14   ret i32 %0
  15 }
  16
  17 define void @_start() local_unnamed_addr {
  18 entry:
  19   call i32 @baz()
  20   ret void
  21 }
  22
  23 ; CHECK:      --- !WASM
  24 ; CHECK-NEXT: FileHeader:
  25 ; CHECK-NEXT:   Version:         0x1
  26 ; CHECK-NEXT: Sections:
  27 ; CHECK-NEXT:   - Type:            TYPE
  28 ; CHECK-NEXT:     Signatures:
  29 ; CHECK-NEXT:       - Index:           0
  30 ; CHECK-NEXT:         ParamTypes:
  31 ; CHECK-NEXT:         ReturnTypes:
  32 ; CHECK-NEXT:           - I32
  33 ; CHECK-NEXT:       - Index:           1
  34 ; CHECK-NEXT:         ParamTypes:
  35 ; CHECK-NEXT:         ReturnTypes:     []
  36 ; CHECK-NEXT:   - Type:            FUNCTION
  37 ; CHECK-NEXT:     FunctionTypes:   [ 0, 1 ]
  38 ; CHECK-NEXT:   - Type:            MEMORY
  39 ; CHECK-NEXT:     Memories:
  40 ; CHECK-NEXT:       - Minimum:         0x2
  41 ; CHECK-NEXT:   - Type:            GLOBAL
  42 ; CHECK-NEXT:     Globals:
  43 ; CHECK-NEXT:       - Index:           0
  44 ; CHECK-NEXT:         Type:            I32
  45 ; CHECK-NEXT:         Mutable:         true
  46 ; CHECK-NEXT:         InitExpr:
  47 ; CHECK-NEXT:           Opcode:          I32_CONST
  48 ; CHECK-NEXT:           Value:           66576
  49 ; CHECK-NEXT:       - Index:           1
  50 ; CHECK-NEXT:         Type:            I32
  51 ; CHECK-NEXT:         Mutable:         false
  52 ; CHECK-NEXT:         InitExpr:
  53 ; CHECK-NEXT:           Opcode:          I32_CONST
  54 ; CHECK-NEXT:           Value:           1024
  55 ; CHECK-NEXT:   - Type:            EXPORT
  56 ; CHECK-NEXT:     Exports:
  57 ; CHECK-NEXT:       - Name:            memory
  58 ; CHECK-NEXT:         Kind:            MEMORY
  59 ; CHECK-NEXT:         Index:           0
  60 ; CHECK-NEXT:       - Name:            _start
  61 ; CHECK-NEXT:         Kind:            FUNCTION
  62 ; CHECK-NEXT:         Index:           1
  63 ; CHECK-NEXT:       - Name:            foo
  64 ; CHECK-NEXT:         Kind:            GLOBAL
  65 ; CHECK-NEXT:         Index:           1
  66 ; CHECK-NEXT:   - Type:            CODE
  67 ; CHECK-NEXT:     Functions:
  68 ; CHECK-NEXT:       - Index:           0
  69 ; CHECK-NEXT:         Locals:
  70 ; CHECK-NEXT:         Body:            4100280284888080000B
  71 ; CHECK-NEXT:       - Index:           1
  72 ; CHECK-NEXT:         Locals:
  73 ; CHECK-NEXT:         Body:            1080808080001A0B
  74 ; CHECK-NEXT:   - Type:            DATA
  75 ; CHECK-NEXT:     Segments:
  76 ; CHECK-NEXT:       - SectionOffset:   7
  77 ; CHECK-NEXT:         InitFlags:       0
  78 ; CHECK-NEXT:         Offset:
  79 ; CHECK-NEXT:           Opcode:          I32_CONST
  80 ; CHECK-NEXT:           Value:           1024
  81 ; CHECK-NEXT:         Content:         '0100000003000000'
  82 ; CHECK-NEXT:   - Type:            CUSTOM
  83 ; CHECK-NEXT:     Name:            name
  84 ; CHECK-NEXT:     FunctionNames:
  85 ; CHECK-NEXT:       - Index:           0
  86 ; CHECK-NEXT:         Name:            baz
  87 ; CHECK-NEXT:       - Index:           1
  88 ; CHECK-NEXT:         Name:            _start
  89 ; CHECK-NEXT:     GlobalNames:
  90 ; CHECK-NEXT:       - Index:           0
  91 ; CHECK-NEXT:         Name:            __stack_pointer
  92 ; CHECK-NEXT:     DataSegmentNames:
  93 ; CHECK-NEXT:       - Index:           0
  94 ; CHECK-NEXT:         Name:            .data
  95 ; CHECK-NEXT: ...