a51056f5c4
This is a more canonical type name, and is in line with {kVoidCode}.
Change-Id: Iaae9524b6fb6ecaafd63ce81cf30e3d01ca3e525
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2775565
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73557}
93 lines
2.8 KiB
JavaScript
93 lines
2.8 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
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load("test/mjsunit/wasm/wasm-module-builder.js");
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// Collect the Callsite objects instead of just a string:
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Error.prepareStackTrace = function(error, frames) {
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return frames;
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};
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function testTrapLocations(instance, expected_stack_length) {
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function testWasmTrap(value, reason, position) {
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let function_name = arguments.callee.name;
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try {
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instance.exports.main(value);
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fail('expected wasm exception');
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} catch (e) {
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assertEquals(kTrapMsgs[reason], e.message, 'trap reason');
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// Check that the trapping function is the one which was called from this
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// function.
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assertTrue(
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e.stack[1].toString().startsWith(function_name), 'stack depth');
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assertEquals(1, e.stack[0].getLineNumber(), 'wasmFunctionIndex');
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assertEquals(position, e.stack[0].getPosition(), 'position');
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}
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}
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// The actual tests:
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testWasmTrap(0, kTrapDivByZero, 73);
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testWasmTrap(1, kTrapMemOutOfBounds, 74);
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testWasmTrap(2, kTrapUnreachable, 87);
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testWasmTrap(3, kTrapTableOutOfBounds, 91);
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}
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var builder = new WasmModuleBuilder();
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builder.addMemory(0, 1, false);
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var sig_index = builder.addType(kSig_i_v)
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// Build a function to resemble this code:
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// if (idx < 2) {
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// return load(-2 / idx);
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// } else if (idx == 2) {
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// unreachable;
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// } else {
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// return call_indirect(idx);
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// }
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// There are four different traps which are triggered by different input values:
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// (0) division by zero; (1) mem oob; (2) unreachable; (3) invalid call target
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// Each of them also has a different location where it traps.
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builder.addFunction("main", kSig_i_i)
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.addBody([
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// offset 1
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kExprBlock, kWasmI32,
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kExprLocalGet, 0,
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kExprI32Const, 2,
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kExprI32LtU,
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kExprIf, kWasmVoid,
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// offset 9
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kExprI32Const, 0x7e /* -2 */,
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kExprLocalGet, 0,
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kExprI32DivU,
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// offset 15
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kExprI32LoadMem, 0, 0,
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kExprBr, 1,
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kExprEnd,
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// offset 21
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kExprLocalGet, 0,
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kExprI32Const, 2,
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kExprI32Eq,
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kExprIf, kWasmVoid,
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kExprUnreachable,
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kExprEnd,
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// offset 30
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kExprLocalGet, 0,
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kExprCallIndirect, sig_index, kTableZero,
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kExprEnd,
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])
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.exportAs("main");
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builder.appendToTable([0]);
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let buffer = builder.toBuffer();
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// Test async compilation and instantiation.
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assertPromiseResult(WebAssembly.instantiate(buffer), pair => {
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testTrapLocations(pair.instance, 5);
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});
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// Test sync compilation and instantiation.
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testTrapLocations(builder.instantiate(), 4);
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