v8/test/mjsunit/regress/wasm/regress-7422.js
Clemens Hammacher 3c47499881 [Liftoff] Fix caller frame slots generated from stack values
Because of missing parentheses, the computation of the "half index" was
wrong, and always produced 0 or 1.
Also, for non-pairs, we were still passing kHighWord for the
RegPairHalf.

R=ahaas@chromium.org

Bug: v8:7422, v8:6600
Change-Id: If056aa8005d4b44e667b7d76b9be49ec0191d0eb
Reviewed-on: https://chromium-review.googlesource.com/908554
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51175}
2018-02-08 13:47:20 +00:00

28 lines
1.1 KiB
JavaScript

// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
load('test/mjsunit/wasm/wasm-constants.js');
load('test/mjsunit/wasm/wasm-module-builder.js');
var builder = new WasmModuleBuilder();
sig = makeSig([kWasmI32, kWasmI32, kWasmI32, kWasmI32, kWasmI32], [kWasmI32]);
builder.addFunction(undefined, sig).addBody([kExprGetLocal, 4]);
builder.addMemory(16, 32);
builder.addFunction('main', sig)
.addBody([
kExprI32Const, 0, kExprSetLocal, 0,
// Compute five arguments to the function call.
kExprI32Const, 0, kExprI32Const, 0, kExprI32Const, 0, kExprI32Const, 0,
kExprGetLocal, 4, kExprI32Const, 1, kExprI32Add,
// Now some intermediate computation to force the arguments to be spilled
// to the stack:
kExprGetLocal, 0, kExprI32Const, 1, kExprI32Add, kExprGetLocal, 1,
kExprGetLocal, 1, kExprI32Add, kExprI32Add, kExprDrop,
// Now call the function.
kExprCallFunction, 0
])
.exportFunc();
var instance = builder.instantiate();
assertEquals(11, instance.exports.main(2, 4, 6, 8, 10));