c3baf49f24
This makes sure that direct and indirect calls get proper {IfException}
projections attached to them if they appear within a try-block. It also
re-enables most of the corresponding test cases for this.
R=ahaas@chromium.org
TEST=mjsunit/wasm/exceptions
BUG=v8:8091
Change-Id: I111634759651ed47f76850e80c8754751310001b
Reviewed-on: https://chromium-review.googlesource.com/1195365
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55483}
584 lines
18 KiB
JavaScript
584 lines
18 KiB
JavaScript
// Copyright 2018 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 --experimental-wasm-eh
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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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// The following method doesn't attempt to catch an raised exception.
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(function TestThrowSimple() {
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let builder = new WasmModuleBuilder();
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let except = builder.addException(kSig_v_v);
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builder.addFunction("throw_if_param_not_zero", kSig_i_i)
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.addBody([
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kExprGetLocal, 0,
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kExprI32Const, 0,
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kExprI32Ne,
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kExprIf, kWasmStmt,
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kExprThrow, except,
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kExprEnd,
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kExprI32Const, 1
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]).exportFunc();
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let instance = builder.instantiate();
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assertEquals(1, instance.exports.throw_if_param_not_zero(0));
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assertWasmThrows(except, [], () => instance.exports.throw_if_param_not_zero(10));
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assertWasmThrows(except, [], () => instance.exports.throw_if_param_not_zero(-1));
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})();
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// Now that we know throwing works, we test catching the exceptions we raise.
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(function TestCatchSimple() {
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let builder = new WasmModuleBuilder();
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let except = builder.addException(kSig_v_v);
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builder.addFunction("simple_throw_catch_to_0_1", kSig_i_i)
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.addBody([
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kExprTry, kWasmI32,
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kExprGetLocal, 0,
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kExprI32Eqz,
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kExprIf, kWasmStmt,
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kExprThrow, except,
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kExprEnd,
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kExprI32Const, 42,
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kExprCatch, except,
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kExprI32Const, 23,
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kExprEnd
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]).exportFunc();
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let instance = builder.instantiate();
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assertEquals(23, instance.exports.simple_throw_catch_to_0_1(0));
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assertEquals(42, instance.exports.simple_throw_catch_to_0_1(1));
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})();
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// Test that we can distinguish which exception was thrown.
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(function TestCatchComplex() {
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let builder = new WasmModuleBuilder();
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let except1 = builder.addException(kSig_v_v);
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let except2 = builder.addException(kSig_v_v);
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let except3 = builder.addException(kSig_v_v);
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builder.addFunction("catch_different_exceptions", kSig_i_i)
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.addBody([
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kExprTry, kWasmI32,
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kExprTry, kWasmI32,
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kExprGetLocal, 0,
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kExprI32Eqz,
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kExprIf, kWasmStmt,
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kExprThrow, except1,
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kExprElse,
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kExprGetLocal, 0,
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kExprI32Const, 1,
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kExprI32Eq,
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kExprIf, kWasmStmt,
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kExprThrow, except2,
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kExprElse,
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kExprThrow, except3,
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kExprEnd,
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kExprEnd,
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kExprI32Const, 2,
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kExprCatch, except1,
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kExprI32Const, 3,
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kExprEnd,
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kExprCatch, except2,
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kExprI32Const, 4,
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kExprEnd
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]).exportFunc();
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let instance = builder.instantiate();
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assertEquals(3, instance.exports.catch_different_exceptions(0));
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assertEquals(4, instance.exports.catch_different_exceptions(1));
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assertWasmThrows(except3, [], () => instance.exports.catch_different_exceptions(2));
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})();
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// Test throwing an exception with multiple values.
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(function TestThrowMultipleValues() {
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let builder = new WasmModuleBuilder();
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let except = builder.addException(kSig_v_ii);
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builder.addFunction("throw_1_2", kSig_v_v)
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.addBody([
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kExprI32Const, 1,
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kExprI32Const, 2,
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kExprThrow, except,
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]).exportFunc();
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let instance = builder.instantiate();
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assertWasmThrows(except, [0, 1, 0, 2], () => instance.exports.throw_1_2());
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})();
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// Test throwing/catching the i32 parameter value.
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(function TestThrowCatchParamI() {
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let builder = new WasmModuleBuilder();
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let except = builder.addException(kSig_v_i);
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builder.addFunction("throw_catch_param", kSig_i_i)
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.addBody([
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kExprTry, kWasmI32,
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kExprGetLocal, 0,
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kExprThrow, except,
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kExprI32Const, 2,
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kExprCatch, except,
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kExprReturn,
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kExprEnd,
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]).exportFunc();
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let instance = builder.instantiate();
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assertEquals(0, instance.exports.throw_catch_param(0));
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assertEquals(1, instance.exports.throw_catch_param(1));
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assertEquals(10, instance.exports.throw_catch_param(10));
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})();
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// Test the encoding of a thrown exception with an integer exception.
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(function TestThrowParamI() {
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let builder = new WasmModuleBuilder();
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let except = builder.addException(kSig_v_i);
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builder.addFunction("throw_param", kSig_v_i)
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.addBody([
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kExprGetLocal, 0,
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kExprThrow, except,
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]).exportFunc();
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let instance = builder.instantiate();
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assertWasmThrows(except, [0, 5], () => instance.exports.throw_param(5));
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assertWasmThrows(except, [6, 31026], () => instance.exports.throw_param(424242));
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})();
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// Test throwing/catching the f32 parameter value.
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(function TestThrowCatchParamF() {
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let builder = new WasmModuleBuilder();
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let except = builder.addException(kSig_v_f);
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builder.addFunction("throw_catch_param", kSig_f_f)
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.addBody([
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kExprTry, kWasmF32,
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kExprGetLocal, 0,
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kExprThrow, except,
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kExprF32Const, 0, 0, 0, 0,
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kExprCatch, except,
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kExprReturn,
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kExprEnd,
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]).exportFunc();
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let instance = builder.instantiate();
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assertEquals(5.0, instance.exports.throw_catch_param(5.0));
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assertEquals(10.5, instance.exports.throw_catch_param(10.5));
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})();
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// Test the encoding of a thrown exception with a float value.
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(function TestThrowParamF() {
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let builder = new WasmModuleBuilder();
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let except = builder.addException(kSig_v_f);
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builder.addFunction("throw_param", kSig_v_f)
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.addBody([
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kExprGetLocal, 0,
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kExprThrow, except,
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]).exportFunc();
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let instance = builder.instantiate();
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assertWasmThrows(except, [16544, 0], () => instance.exports.throw_param(5.0));
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assertWasmThrows(except, [16680, 0], () => instance.exports.throw_param(10.5));
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})();
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// Test throwing/catching an I64 value
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(function TestThrowCatchParamL() {
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let builder = new WasmModuleBuilder();
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let except = builder.addException(kSig_v_l);
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builder.addFunction("throw_catch_param", kSig_i_i)
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.addBody([
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kExprGetLocal, 0,
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kExprI64UConvertI32,
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kExprSetLocal, 1,
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kExprTry, kWasmI32,
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kExprGetLocal, 1,
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kExprThrow, except,
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kExprI32Const, 2,
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kExprCatch, except,
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kExprGetLocal, 1,
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kExprI64Eq,
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kExprIf, kWasmI32,
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kExprI32Const, 1,
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kExprElse,
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kExprI32Const, 0,
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kExprEnd,
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// TODO(kschimpf): Why is this return necessary?
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kExprReturn,
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kExprEnd,
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]).addLocals({i64_count: 1}).exportFunc();
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let instance = builder.instantiate();
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assertEquals(1, instance.exports.throw_catch_param(5));
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assertEquals(1, instance.exports.throw_catch_param(0));
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assertEquals(1, instance.exports.throw_catch_param(-1));
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})();
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// Test the encoding of a thrown exception with an I64 value.
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(function TestThrowParamL() {
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let builder = new WasmModuleBuilder();
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let except = builder.addException(kSig_v_l);
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builder.addFunction("throw_param", kSig_v_ii)
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.addBody([
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kExprGetLocal, 0,
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kExprI64UConvertI32,
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kExprI64Const, 32,
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kExprI64Shl,
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kExprGetLocal, 1,
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kExprI64UConvertI32,
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kExprI64Ior,
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kExprThrow, except,
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]).exportFunc();
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let instance = builder.instantiate();
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assertWasmThrows(except, [0, 10, 0, 5], () => instance.exports.throw_param(10, 5));
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assertWasmThrows(except, [65535, 65535, 0, 13], () => instance.exports.throw_param(-1, 13));
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})();
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// Test throwing/catching the F64 parameter value
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(function TestThrowCatchParamD() {
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let builder = new WasmModuleBuilder();
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let except = builder.addException(kSig_v_d);
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builder.addFunction("throw_catch_param", kSig_d_d)
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.addBody([
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kExprTry, kWasmF64,
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kExprGetLocal, 0,
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kExprThrow, except,
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kExprF64Const, 0, 0, 0, 0, 0, 0, 0, 0,
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kExprCatch, except,
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kExprReturn,
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kExprEnd,
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]).exportFunc();
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let instance = builder.instantiate();
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assertEquals(5.0, instance.exports.throw_catch_param(5.0));
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assertEquals(10.5, instance.exports.throw_catch_param(10.5));
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})();
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// Test the encoding of a thrown exception with an f64 value.
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(function TestThrowParamD() {
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let builder = new WasmModuleBuilder();
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let except = builder.addException(kSig_v_d);
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builder.addFunction("throw_param", kSig_v_f)
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.addBody([
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kExprGetLocal, 0,
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kExprF64ConvertF32,
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kExprThrow, except,
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]).exportFunc();
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let instance = builder.instantiate();
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assertWasmThrows(except, [16404, 0, 0, 0], () => instance.exports.throw_param(5.0));
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assertWasmThrows(except, [16739, 4816, 0, 0], () => instance.exports.throw_param(10000000.5));
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})();
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// Test the encoding of a computed parameter value.
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(function TestThrowParamComputed() {
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let builder = new WasmModuleBuilder();
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let except = builder.addException(kSig_v_i);
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builder.addFunction("throw_expr_with_params", kSig_v_ddi)
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.addBody([
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// p2 * (p0 + min(p0, p1))|0 - 20
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kExprGetLocal, 2,
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kExprGetLocal, 0,
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kExprGetLocal, 0,
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kExprGetLocal, 1,
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kExprF64Min,
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kExprF64Add,
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kExprI32SConvertF64,
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kExprI32Mul,
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kExprI32Const, 20,
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kExprI32Sub,
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kExprThrow, except,
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]).exportFunc()
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let instance = builder.instantiate();
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assertWasmThrows(except, [65535, 65536-8], () => instance.exports.throw_expr_with_params(1.5, 2.5, 4));
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assertWasmThrows(except, [0, 12], () => instance.exports.throw_expr_with_params(5.7, 2.5, 4));
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})();
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// Now that we know catching works locally, we test catching exceptions that
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// cross function boundaries and/or raised by JavaScript.
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(function TestCatchCrossFunctions() {
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let builder = new WasmModuleBuilder();
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let except = builder.addException(kSig_v_i);
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// Helper function for throwing from JS. It is imported by the Wasm module
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// as throw_i.
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function throw_value(value) {
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throw value;
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}
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let sig_index = builder.addType(kSig_v_i);
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let kJSThrowI = builder.addImport("", "throw_i", sig_index);
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// Helper function that throws a string. Wasm should not catch it.
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function throw_string() {
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throw "use wasm";
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}
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sig_index = builder.addType(kSig_v_v);
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let kJSThrowString = builder.addImport("", "throw_string", sig_index);
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// Helper function that throws undefined. Wasm should not catch it.
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function throw_undefined() {
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throw undefined;
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}
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let kJSThrowUndefined = builder.addImport("", "throw_undefined", sig_index);
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// Helper function that throws an fp. Wasm should not catch it.
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function throw_fp() {
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throw 10.5;
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}
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let kJSThrowFP = builder.addImport("", "throw_fp", sig_index);
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// Helper function that throws a large number. Wasm should not catch it.
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function throw_large() {
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throw 1e+28;
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}
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let kJSThrowLarge = builder.addImport("", "throw_large", sig_index);
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// Helper function for throwing from WebAssembly.
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let kWasmThrowFunction =
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builder.addFunction("throw", kSig_v_i)
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.addBody([
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kExprGetLocal, 0,
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kExprThrow, except,
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])
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.index;
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// Scenario 1: Throw and catch appear on the same function. This should
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// happen in case of inlining, for example.
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builder.addFunction("same_scope", kSig_i_i)
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.addBody([
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kExprTry, kWasmI32,
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kExprGetLocal, 0,
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kExprI32Const, 0,
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kExprI32Ne,
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kExprIf, kWasmStmt,
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kExprGetLocal, 0,
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kExprThrow, except,
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kExprUnreachable,
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kExprEnd,
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kExprI32Const, 63,
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kExprCatch, except,
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kExprEnd
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])
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.exportFunc();
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builder.addFunction("same_scope_ignore", kSig_i_i)
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.addBody([
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kExprTry, kWasmI32,
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kExprGetLocal, 0,
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kExprThrow, except,
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kExprUnreachable,
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kExprCatch, except,
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kExprEnd,
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])
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.exportFunc();
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builder.addFunction("same_scope_multiple", kSig_i_i)
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// path = 0;
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//
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// try {
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// try {
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// try {
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// if (p == 1)
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// throw 1;
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// path |= 2
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// } catch (v) {
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// path |= v | 4;
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// throw path;
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// }
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// if (p == 2)
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// throw path|8;
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// path |= 16;
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// } catch (v) {
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// path |= v | 32;
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// throw path;
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// }
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// if (p == 3)
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// throw path|64;
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// path |= 128
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// } catch (v) {
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// path |= v | 256;
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// }
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//
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// return path;
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//
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// p == 1 -> path == 293
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// p == 2 -> path == 298
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// p == 3 -> path == 338
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// else -> path == 146
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.addBody([
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kExprTry, kWasmI32,
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kExprTry, kWasmI32,
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kExprTry, kWasmI32,
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kExprGetLocal, 0,
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kExprI32Const, 1,
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kExprI32Eq,
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kExprIf, kWasmStmt,
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kExprI32Const, 1,
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kExprThrow, except,
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kExprUnreachable,
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kExprEnd,
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kExprI32Const, 2,
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kExprCatch, except,
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kExprI32Const, 4,
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kExprI32Ior,
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kExprThrow, except,
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kExprUnreachable,
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kExprEnd,
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kExprTeeLocal, 1,
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kExprGetLocal, 0,
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kExprI32Const, 2,
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kExprI32Eq,
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kExprIf, kWasmStmt,
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kExprGetLocal, 1,
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kExprI32Const, 8,
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|
kExprI32Ior,
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kExprThrow, except,
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kExprUnreachable,
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kExprEnd,
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kExprI32Const, 16,
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kExprI32Ior,
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kExprCatch, except,
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kExprI32Const, 32,
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|
kExprI32Ior,
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kExprThrow, except,
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kExprUnreachable,
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kExprEnd,
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kExprTeeLocal, 1,
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kExprGetLocal, 0,
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kExprI32Const, 3,
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kExprI32Eq,
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kExprIf, kWasmStmt,
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kExprGetLocal, 1,
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kExprI32Const, /*64=*/ 192, 0,
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kExprI32Ior,
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kExprThrow, except,
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kExprUnreachable,
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kExprEnd,
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kExprI32Const, /*128=*/ 128, 1,
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kExprI32Ior,
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kExprCatch, except,
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kExprI32Const, /*256=*/ 128, 2,
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kExprI32Ior,
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kExprEnd,
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])
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.addLocals({i32_count: 1})
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.exportFunc();
|
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// Scenario 2: Catches an exception raised from the direct callee.
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let kFromDirectCallee =
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builder.addFunction("from_direct_callee", kSig_i_i)
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.addBody([
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kExprTry, kWasmI32,
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kExprGetLocal, 0,
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kExprCallFunction, kWasmThrowFunction,
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kExprUnreachable,
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kExprCatch, except,
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kExprEnd,
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])
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.exportFunc()
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.index;
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// Scenario 3: Catches an exception raised from an indirect callee.
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// TODO(mstarzinger): Test case for indirect calls using direct calls not
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// fooling anyone, switch to actually use indirect calls.
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let kFromIndirectCalleeHelper = kFromDirectCallee + 1;
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builder.addFunction("from_indirect_callee_helper", kSig_v_ii)
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.addBody([
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kExprGetLocal, 0,
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kExprI32Const, 0,
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kExprI32GtS,
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kExprIf, kWasmStmt,
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kExprGetLocal, 0,
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kExprI32Const, 1,
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kExprI32Sub,
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kExprGetLocal, 1,
|
|
kExprI32Const, 1,
|
|
kExprI32Sub,
|
|
kExprCallFunction, kFromIndirectCalleeHelper,
|
|
kExprEnd,
|
|
kExprGetLocal, 1,
|
|
kExprCallFunction, kWasmThrowFunction,
|
|
]);
|
|
|
|
builder.addFunction("from_indirect_callee", kSig_i_i)
|
|
.addBody([
|
|
kExprTry, kWasmI32,
|
|
kExprGetLocal, 0,
|
|
kExprI32Const, 0,
|
|
kExprCallFunction, kFromIndirectCalleeHelper,
|
|
kExprUnreachable,
|
|
kExprCatch, except,
|
|
kExprEnd
|
|
])
|
|
.exportFunc();
|
|
|
|
// Scenario 4: Catches an exception raised in JS.
|
|
builder.addFunction("from_js", kSig_i_i)
|
|
.addBody([
|
|
kExprTry, kWasmI32,
|
|
kExprGetLocal, 0,
|
|
kExprCallFunction, kJSThrowI,
|
|
kExprUnreachable,
|
|
kExprCatch, except,
|
|
kExprEnd,
|
|
])
|
|
.exportFunc();
|
|
|
|
// Scenario 5: Does not catch an exception raised in JS if it is not a
|
|
// number.
|
|
builder.addFunction("string_from_js", kSig_v_v)
|
|
.addBody([
|
|
kExprCallFunction, kJSThrowString
|
|
])
|
|
.exportFunc();
|
|
|
|
builder.addFunction("fp_from_js", kSig_v_v)
|
|
.addBody([
|
|
kExprCallFunction, kJSThrowFP
|
|
])
|
|
.exportFunc();
|
|
|
|
builder.addFunction("large_from_js", kSig_v_v)
|
|
.addBody([
|
|
kExprCallFunction, kJSThrowLarge
|
|
])
|
|
.exportFunc();
|
|
|
|
builder.addFunction("undefined_from_js", kSig_v_v)
|
|
.addBody([
|
|
kExprCallFunction, kJSThrowUndefined
|
|
])
|
|
.exportFunc();
|
|
|
|
let instance = builder.instantiate({"": {
|
|
throw_i: throw_value,
|
|
throw_string: throw_string,
|
|
throw_fp: throw_fp,
|
|
throw_large, throw_large,
|
|
throw_undefined: throw_undefined
|
|
}});
|
|
|
|
assertEquals(63, instance.exports.same_scope(0));
|
|
assertEquals(1024, instance.exports.same_scope(1024));
|
|
assertEquals(-3, instance.exports.same_scope(-3));
|
|
assertEquals(-1, instance.exports.same_scope_ignore(-1));
|
|
assertEquals(1, instance.exports.same_scope_ignore(1));
|
|
assertEquals(0x7FFFFFFF, instance.exports.same_scope_ignore(0x7FFFFFFF));
|
|
assertEquals(1024, instance.exports.same_scope_ignore(1024));
|
|
assertEquals(-1, instance.exports.same_scope_ignore(-1));
|
|
assertEquals(293, instance.exports.same_scope_multiple(1));
|
|
assertEquals(298, instance.exports.same_scope_multiple(2));
|
|
assertEquals(338, instance.exports.same_scope_multiple(3));
|
|
assertEquals(146, instance.exports.same_scope_multiple(0));
|
|
assertEquals(-10024, instance.exports.from_direct_callee(-10024));
|
|
assertEquals(3334333, instance.exports.from_direct_callee(3334333));
|
|
assertEquals(-1, instance.exports.from_direct_callee(0xFFFFFFFF));
|
|
assertEquals(0x7FFFFFFF, instance.exports.from_direct_callee(0x7FFFFFFF));
|
|
assertEquals(-10, instance.exports.from_indirect_callee(10));
|
|
assertEquals(-77, instance.exports.from_indirect_callee(77));
|
|
// TODO(mstarzinger): Re-enable the following test cases.
|
|
/*assertEquals(10, instance.exports.from_js(10));
|
|
assertEquals(-10, instance.exports.from_js(-10));*/
|
|
|
|
assertThrowsEquals(instance.exports.string_from_js, "use wasm");
|
|
assertThrowsEquals(instance.exports.fp_from_js, 10.5);
|
|
assertThrowsEquals(instance.exports.large_from_js, 1e+28);
|
|
assertThrowsEquals(instance.exports.undefined_from_js, undefined);
|
|
})();
|