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// 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-module-builder.js');
const builder = new WasmModuleBuilder();
builder.addFunction('main', kSig_d_d)
.addBody([
// Call with param 0 (converted to i64), to fill the stack with non-zero
// values.
kExprGetLocal, 0, kExprI64SConvertF64, // arg 0
kExprGetLocal, 0, kExprI64SConvertF64, // arg 1
kExprGetLocal, 0, kExprI64SConvertF64, // arg 2
kExprGetLocal, 0, kExprI64SConvertF64, // arg 3
kExprGetLocal, 0, kExprI64SConvertF64, // arg 4
kExprGetLocal, 0, kExprI64SConvertF64, // arg 5
kExprGetLocal, 0, kExprI64SConvertF64, // arg 6
kExprGetLocal, 0, kExprI64SConvertF64, // arg 7
kExprCallFunction, 1, // call #1
// Now call with 0 constants.
// The bug was that they were written out as i32 values, thus the upper 32
// bit were the previous values on that stack memory.
kExprI64Const, 0, // i64.const 0 [0]
kExprI64Const, 0, // i64.const 0 [1]
kExprI64Const, 0, // i64.const 0 [2]
kExprI64Const, 0, // i64.const 0 [3]
kExprI64Const, 0, // i64.const 0 [4]
kExprI64Const, 0, // i64.const 0 [5]
kExprI64Const, 0, // i64.const 0 [6]
kExprI64Const, 0, // i64.const 0 [7]
kExprCallFunction, 1, // call #1
// Return the sum of the two returned values.
kExprF64Add
])
.exportFunc();
builder.addFunction(undefined, makeSig(new Array(8).fill(kWasmI64), [kWasmF64]))
.addBody([
kExprGetLocal, 7, // get_local 7 (last parameter)
kExprF64SConvertI64, // f64.convert_s/i64
]);
const instance = builder.instantiate();
const big_num_1 = 2 ** 48;
const big_num_2 = 2 ** 56 / 3;
assertEquals(big_num_1, instance.exports.main(big_num_1));
assertEquals(big_num_2, instance.exports.main(big_num_2));
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