llvm/test/MC/WebAssembly/globals.s

   1 # RUN: llvm-mc -triple=wasm32-unknown-unknown < %s | FileCheck %s
   2 # RUN: llvm-mc -triple=wasm32-unknown-unknown -filetype=obj < %s | obj2yaml | FileCheck -check-prefix=BIN %s
   3
   4 # Tests creating an accessing actual wasm globals
   5
   6 .globl read_global
   7 .globl write_global
   8 .globaltype foo_global, i32
   9 .globaltype global2, i64, immutable
  10 .globaltype global3, f32
  11 .globaltype global4, f64
  12
  13 read_global:
  14   .functype read_global () -> (i32)
  15   global.get foo_global
  16   end_function
  17
  18 write_global:
  19   .functype write_global (i32, i64, f32, f64) -> ()
  20   local.get 0
  21   global.set foo_global
  22   local.get 1
  23   global.set global2
  24   local.get 2
  25   global.set global3
  26   local.get 3
  27   global.set global4
  28   end_function
  29
  30 foo_global:
  31 global2:
  32 global3:
  33 global4:
  34
  35 # CHECK: .globl  read_global
  36 # CNEXT: .globl  write_global
  37 # CHECK: .globaltype foo_global, i32
  38 # CHECK: foo_global:
  39
  40 #      BIN: - Type:            GLOBAL
  41 # BIN-NEXT:   Globals:
  42 # BIN-NEXT:     - Index:           0
  43 # BIN-NEXT:       Type:            I32
  44 # BIN-NEXT:       Mutable:         true
  45 # BIN-NEXT:       InitExpr:
  46 # BIN-NEXT:         Opcode:          I32_CONST
  47 # BIN-NEXT:         Value:           0
  48 # BIN-NEXT:     - Index:           1
  49 # BIN-NEXT:       Type:            I64
  50 # BIN-NEXT:       Mutable:         false
  51 # BIN-NEXT:       InitExpr:
  52 # BIN-NEXT:         Opcode:          I64_CONST
  53 # BIN-NEXT:         Value:           0
  54
  55 #      BIN:  - Type:            CUSTOM
  56 # BIN-NEXT:    Name:            linking
  57 # BIN-NEXT:    Version:         2
  58 # BIN-NEXT:    SymbolTable:
  59 # BIN-NEXT:      - Index:           0
  60 # BIN-NEXT:        Kind:            FUNCTION
  61 # BIN-NEXT:        Name:            read_global
  62 # BIN-NEXT:        Flags:           [  ]
  63 # BIN-NEXT:        Function:        0
  64 # BIN-NEXT:      - Index:           1
  65 # BIN-NEXT:        Kind:            FUNCTION
  66 # BIN-NEXT:        Name:            write_global
  67 # BIN-NEXT:        Flags:           [  ]
  68 # BIN-NEXT:        Function:        1
  69 # BIN-NEXT:      - Index:           2
  70 # BIN-NEXT:        Kind:            GLOBAL
  71 # BIN-NEXT:        Name:            foo_global
  72 # BIN-NEXT:        Flags:           [ BINDING_LOCAL ]
  73 # BIN-NEXT:        Global:          0
  74 # BIN-NEXT:      - Index:           3
  75 # BIN-NEXT:        Kind:            GLOBAL
  76 # BIN-NEXT:        Name:            global2
  77 # BIN-NEXT:        Flags:           [ BINDING_LOCAL ]
  78 # BIN-NEXT:        Global:          1
  79 # BIN-NEXT:      - Index:           4
  80 # BIN-NEXT:        Kind:            GLOBAL
  81 # BIN-NEXT:        Name:            global3
  82 # BIN-NEXT:        Flags:           [ BINDING_LOCAL ]
  83 # BIN-NEXT:        Global:          2
  84 # BIN-NEXT:      - Index:           5
  85 # BIN-NEXT:        Kind:            GLOBAL
  86 # BIN-NEXT:        Name:            global4
  87 # BIN-NEXT:        Flags:           [ BINDING_LOCAL ]
  88 # BIN-NEXT:        Global:          3