1269306a3b
Return -1 instead of out of throwing errors, update tests. R=titzer@chromium.org, ahaas@chromium.org Review-Url: https://codereview.chromium.org/2216443002 Cr-Commit-Position: refs/heads/master@{#38350}
120 lines
3.6 KiB
JavaScript
120 lines
3.6 KiB
JavaScript
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --expose-wasm --expose-gc --stress-compaction
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load("test/mjsunit/wasm/wasm-constants.js");
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load("test/mjsunit/wasm/wasm-module-builder.js");
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var kPageSize = 0x10000;
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function genGrowMemoryBuilder() {
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var builder = new WasmModuleBuilder();
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builder.addFunction("grow_memory", kSig_i_i)
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.addBody([kExprGetLocal, 0, kExprGrowMemory])
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.exportFunc();
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builder.addFunction("load", kSig_i_i)
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.addBody([kExprGetLocal, 0, kExprI32LoadMem, 0, 0])
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.exportFunc();
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builder.addFunction("store", kSig_i_ii)
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.addBody([kExprGetLocal, 0, kExprGetLocal, 1, kExprI32StoreMem, 0, 0])
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.exportFunc();
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return builder;
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}
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function testGrowMemoryReadWrite() {
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var builder = genGrowMemoryBuilder();
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builder.addMemory(1, 1, false);
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var module = builder.instantiate();
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var offset;
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function peek() { return module.exports.load(offset); }
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function poke(value) { return module.exports.store(offset, value); }
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function growMem(pages) { return module.exports.grow_memory(pages); }
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for(offset = 0; offset <= (kPageSize - 4); offset++) {
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poke(20);
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assertEquals(20, peek());
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}
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for (offset = kPageSize - 3; offset < kPageSize + 4; offset++) {
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assertTraps(kTrapMemOutOfBounds, poke);
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assertTraps(kTrapMemOutOfBounds, peek);
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}
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assertEquals(1, growMem(3));
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for (offset = kPageSize; offset <= 4*kPageSize -4; offset++) {
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poke(20);
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assertEquals(20, peek());
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}
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for (offset = 4*kPageSize - 3; offset < 4*kPageSize + 4; offset++) {
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assertTraps(kTrapMemOutOfBounds, poke);
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assertTraps(kTrapMemOutOfBounds, peek);
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}
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assertEquals(4, growMem(15));
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for (offset = 4*kPageSize - 3; offset <= 4*kPageSize + 4; offset++) {
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poke(20);
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assertEquals(20, peek());
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}
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for (offset = 19*kPageSize - 10; offset <= 19*kPageSize - 4; offset++) {
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poke(20);
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assertEquals(20, peek());
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}
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for (offset = 19*kPageSize - 3; offset < 19*kPageSize + 5; offset++) {
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assertTraps(kTrapMemOutOfBounds, poke);
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assertTraps(kTrapMemOutOfBounds, peek);
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}
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}
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testGrowMemoryReadWrite();
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function testGrowMemoryZeroInitialSize() {
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var builder = genGrowMemoryBuilder();
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var module = builder.instantiate();
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var offset;
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function peek() { return module.exports.load(offset); }
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function poke(value) { return module.exports.store(offset, value); }
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function growMem(pages) { return module.exports.grow_memory(pages); }
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assertTraps(kTrapMemOutOfBounds, peek);
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assertTraps(kTrapMemOutOfBounds, poke);
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assertEquals(0, growMem(1));
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for(offset = 0; offset <= kPageSize - 4; offset++) {
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poke(20);
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assertEquals(20, peek());
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}
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//TODO(gdeepti): Fix tests with correct write boundaries
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//when runtime function is fixed.
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for(offset = kPageSize; offset <= kPageSize + 5; offset++) {
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assertTraps(kTrapMemOutOfBounds, peek);
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}
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}
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testGrowMemoryZeroInitialSize();
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function testGrowMemoryTrapMaxPagesZeroInitialMemory() {
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var builder = genGrowMemoryBuilder();
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var module = builder.instantiate();
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var maxPages = 16385;
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function growMem(pages) { return module.exports.grow_memory(pages); }
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assertEquals(-1, growMem(maxPages));
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}
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testGrowMemoryTrapMaxPagesZeroInitialMemory();
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function testGrowMemoryTrapMaxPages() {
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var builder = genGrowMemoryBuilder();
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builder.addMemory(1, 1, false);
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var module = builder.instantiate();
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var maxPages = 16384;
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function growMem(pages) { return module.exports.grow_memory(pages); }
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assertEquals(-1, growMem(maxPages));
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}
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testGrowMemoryTrapMaxPages();
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