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      1 // Copyright 2015 the V8 project authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Flags: --expose-wasm --expose-gc --allow-natives-syntax
      6 
      7 load("test/mjsunit/wasm/wasm-constants.js");
      8 load("test/mjsunit/wasm/wasm-module-builder.js");
      9 
     10 function makeFFI(func) {
     11   var builder = new WasmModuleBuilder();
     12 
     13   var sig_index = builder.addType(kSig_i_dd);
     14   builder.addImport("func", sig_index);
     15   builder.addFunction("main", sig_index)
     16     .addBody([
     17       kExprGetLocal, 0,            // --
     18       kExprGetLocal, 1,            // --
     19       kExprCallImport, kArity2, 0, // --
     20     ])
     21     .exportFunc()
     22 
     23   return builder.instantiate({func: func}).exports.main;
     24 }
     25 
     26 
     27 function makeReentrantFFI(func) {
     28   var main = makeFFI(reenter);
     29 
     30   function reenter(a, b) {
     31     print(" reenter " + a);
     32     if (a > 0) main(a - 1, b);
     33     else func();
     34   }
     35   return main;
     36 }
     37 
     38 
     39 function runTest(builder) {
     40   // ---- THROWING TEST -----------------------------------------------
     41 
     42   function throwadd(a, b) {
     43     print("-- trying throw --");
     44     throw a + b;
     45   }
     46 
     47   function throwa(a) {
     48     print("-- trying throw --");
     49     throw a;
     50   }
     51 
     52   function throwstr() {
     53     print("-- trying throw --");
     54     throw "string";
     55   }
     56 
     57   assertThrows(builder(throwadd));
     58   assertThrows(builder(throwa));
     59   assertThrows(builder(throwstr));
     60 
     61   try {
     62     builder(throwadd)(7.8, 9.9);
     63   } catch(e) {
     64     print(e);
     65   }
     66 
     67   try {
     68     builder(throwa)(11.8, 9.3);
     69   } catch(e) {
     70     print(e);
     71   }
     72 
     73 
     74   try {
     75     builder(throwstr)(3, 5);
     76   } catch(e) {
     77     print(e);
     78   }
     79 
     80 
     81   // ---- DEOPT TEST -----------------------------------------------
     82 
     83   function deopt() {
     84     print("-- trying deopt --");
     85     %DeoptimizeFunction(deopter);
     86   }
     87 
     88   var deopter = builder(deopt);
     89 
     90   deopter(5, 5);
     91   for (var i = 0; i < 9; i++) {
     92     deopter(6, 6);
     93   }
     94 
     95 
     96   // ---- GC TEST -----------------------------------------------
     97   function dogc(a, b) {
     98     print("-- trying gc --");
     99     gc();
    100     gc();
    101   }
    102 
    103 
    104   var gcer = builder(dogc);
    105   gcer(7, 7);
    106 
    107   for (var i = 0; i < 9; i++) {
    108     gcer(8, 8);
    109   }
    110 }
    111 
    112 runTest(makeReentrantFFI);
    113 runTest(makeFFI);
    114