test/decompile/basic.txt

;;; TOOL: run-wasm-decompile

(module
  (import "ns" "fi" (func))
  (import "ns" "g3" (global i32))
  (import "ns" "tab3" (table 0 12 funcref))
  ;; (import "ns" "m1" (memory 1))  ;; Can test only 1 at a time :(

  (memory (export "m2") 1)

  (global $g1 (mut i32) (i32.const 10))
  (global (export "g2") (mut i32) (i32.const 11))

  (table $tab1 0 10 funcref)
  (table (export "tab2") 0 11 funcref)

  (data 0 (offset (i32.const 0)) "Hello, World!\n\00")
  (data 0 (offset (i32.const 100)) "abcdefghijklmnoqrstuvwxyzabcdefghijklmnoqrstuvwxyzabcdefghijklmnoqrstuvwxyzabcdefghijklmnoqrstuvwxyzabcdefghijklmnoqrstuvwxyzabcdefghijklmnoqrstuvwxyzabcdefghijklmnoqrstuvwxyzabcdefghijklmnoqrstuvwxyzabcdefghijklmnoqrstuvwxyzabcdefghijklmnoqrstuvwxyzabcdefghijklmnoqrstuvwxyz")
  (data 0 (offset (i32.const 200)) "hi")  ;; Too short for data derived name
  (data 0 (offset (i32.const 300)) "Hello, World!\n\00")  ;; Duplicate.

  (func $f (param i32 i32) (result i32) (local i64 f32 f64)
    i64.const 8
    set_local 2
    f32.const 6.0
    set_local 3
    f64.const 7.0
    tee_local 4
    f64.const 10.0
    f64.lt
    if
      i32.const 1
      i32.const 2
      i32.load offset=3 align=1
      i32.const 5
      i32.add
      i32.store offset=4
    end
    get_local 0
    get_global $g1
    i32.add
    i32.const 9
    call $f
    drop
    loop
      block
        i32.const 0
        if (result i32)
          i32.const 1
        else
          i32.const 2
        end
        br_if 0
        br 1
      end
      i32.const 1
      br_if 0
    end
    i32.const 1
    i32.const 2
    i32.const 1
    i32.const 1
    i32.eq
    select
    drop
    block
      block
        block
          block
            block
              local.get 0
              br_table 3 2 1 0 4
              unreachable
            end
            i32.const 100
            return
          end
          i32.const 101
          return
        end
        i32.const 102
        return
      end
      i32.const 103
      return
    end
    i32.const 104
    drop
    i32.const 1
    block (param i32)   ;; block with input
      br_if 0
    end
    block (result i32)  ;; block as an exp.
    i32.const 2
    i32.const 0
    br_if 0
    drop
    i32.const 3
    end
    set_local 0
    nop
    ref.null func
    ref.is_null
    drop
    i32.const 0  ;; fi
    call_indirect
    i32.const 0
  )
  (func $g (param) (result) (local i32)
    ;; This is rare, but requires special handling: uses of local outside scope
    ;; of first definition.
    loop
      i32.const 1
      tee_local 0
      br_if 0
    end
    get_local 0
    drop
  )
  ;; LLD outputs a name section with de-mangled C++ function signatures as names,
  ;; so have to make sure special chars get removed.
  (func (export "void signature-&<>(int a)") (param) (result))
  (func (export "void signature-&[](int a)") (param) (result))
  (func $not-exported (param) (result))
  (export "f" (func $f))
)

(;; STDOUT ;;;
export memory m2(initial: 1, max: 0);

import global ns_g3:int;
global g_b:int = 10;
export global g2:int = 11;

import table ns_tab3:funcref;
table T_b:funcref(min: 0, max: 10);
export table tab2:funcref(min: 0, max: 11);

data d_HelloWorld(offset: 0) = "Hello, World!\0a\00";
data d_abcdefghijklmnoqrstuvwxyzabc(offset: 100) =
  "abcdefghijklmnoqrstuvwxyzabcdefghijklmnoqrstuvwxyzabcdefghijklmnoqrstu"
  "vwxyzabcdefghijklmnoqrstuvwxyzabcdefghijklmnoqrstuvwxyzabcdefghijklmno"
  "qrstuvwxyzabcdefghijklmnoqrstuvwxyzabcdefghijklmnoqrstuvwxyzabcdefghij"
  "klmnoqrstuvwxyzabcdefghijklmnoqrstuvwxyzabcdefghijklmnoqrstuvwxyz";
data d_c(offset: 200) = "hi";
data d_d(offset: 300) = "Hello, World!\0a\00";

import function ns_fi();

export function f(a:int, b:int):int {
  var c:long = 8L;
  var d:float = 6.0f;
  var e:double = 7.0;
  if (e < 10.0) { d_HelloWorld[5@4]:int = d_HelloWorld[5]:int@1 + 5 }
  f(a + g_b, 9);
  loop L_b {
    if (if (0) { 1 } else { 2 }) goto B_c;
    continue L_b;
    label B_c:
    if (1) continue L_b;
  }
  select_if(1, 2, 1 == 1);
  br_table[B_f, B_g, B_h, B_i, ..B_e](a);
  unreachable;
  label B_i:
  return 100;
  label B_h:
  return 101;
  label B_g:
  return 102;
  label B_f:
  return 103;
  label B_e:
  104;
  if (1) goto B_j;
  label B_j:
  a = {
        2;
        if (0) goto B_k;
        3;
        label B_k:
      }
  nop;
  is_null(null);
  call_indirect(0);
  return 0;
}

function f_c() {
  var a:int;
  loop L_a {
    a = 1;
    if (a) continue L_a;
  }
  a;
}

function signature() {
}

function signature_1() {
}

function f_f() {
}

;;; STDOUT ;;)