lld/test/wasm/stack-first.test

   1 ; Test that the --stack-first option places the stack at the start of linear
   2 ; memory.  In this case the --stack-first option is being passed along with a
   3 ; stack size of 512.  This means (since the stack grows down) the stack pointer
   4 ; global should be initialized to 512.
   5 ; Also test that __heap_base is still aligned with the --stack-first option.
   6
   7 RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown %p/Inputs/stack-first.s -o %t.o
   8 RUN: wasm-ld -z stack-size=512 --stack-first --export=__data_end --export=__heap_base --export=someByte -o %t.wasm %t.o
   9 RUN: obj2yaml %t.wasm | FileCheck %s
  10
  11 CHECK:        - Type:            GLOBAL
  12 CHECK-NEXT:     Globals:
  13 CHECK-NEXT:       - Index:           0
  14 CHECK-NEXT:         Type:            I32
  15 CHECK-NEXT:         Mutable:         true
  16 CHECK-NEXT:         InitExpr:
  17 CHECK-NEXT:           Opcode:          I32_CONST
  18 CHECK-NEXT:           Value:           512
  19 CHECK-NEXT:       - Index:           1
  20 CHECK-NEXT:         Type:            I32
  21 CHECK-NEXT:         Mutable:         false
  22 CHECK-NEXT:         InitExpr:
  23 CHECK-NEXT:           Opcode:          I32_CONST
  24 CHECK-NEXT:           Value:           512
  25 CHECK-NEXT:       - Index:           2
  26 CHECK-NEXT:         Type:            I32
  27 CHECK-NEXT:         Mutable:         false
  28 CHECK-NEXT:         InitExpr:
  29 CHECK-NEXT:           Opcode:          I32_CONST
  30 CHECK-NEXT:           Value:           513
  31 CHECK-NEXT:       - Index:           3
  32 CHECK-NEXT:         Type:            I32
  33 CHECK-NEXT:         Mutable:         false
  34 CHECK-NEXT:         InitExpr:
  35 CHECK-NEXT:           Opcode:          I32_CONST
  36 CHECK-NEXT:           Value:           528
  37 CHECK-NEXT:   - Type:            EXPORT
  38 CHECK-NEXT:     Exports:
  39 CHECK-NEXT:       - Name:            memory
  40 CHECK-NEXT:         Kind:            MEMORY
  41 CHECK-NEXT:         Index:           0
  42 CHECK-NEXT:       - Name:            _start
  43 CHECK-NEXT:         Kind:            FUNCTION
  44 CHECK-NEXT:         Index:           0
  45 CHECK-NEXT:       - Name:            someByte
  46 CHECK-NEXT:         Kind:            GLOBAL
  47 CHECK-NEXT:         Index:           1
  48 CHECK-NEXT:       - Name:            __data_end
  49 CHECK-NEXT:         Kind:            GLOBAL
  50 CHECK-NEXT:         Index:           2
  51 CHECK-NEXT:       - Name:            __heap_base
  52 CHECK-NEXT:         Kind:            GLOBAL
  53 CHECK-NEXT:         Index:           3