35 lines
1.0 KiB
JavaScript
35 lines
1.0 KiB
JavaScript
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// 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: --allow-natives-syntax
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function Module(global, env, buffer) {
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"use asm";
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var HEAPF64 = new global.Float64Array(buffer);
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var HEAPF32 = new global.Float32Array(buffer);
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var Math_fround = global.Math.fround;
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function main_d_f() {
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HEAPF64[0] = Math_fround(+HEAPF64[0]);
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}
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function main_d_fq() {
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HEAPF64[1] = HEAPF32[4096];
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}
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function main_f_dq() {
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HEAPF32[4] = HEAPF64[4096];
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}
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return {main_d_f: main_d_f, main_d_fq: main_d_fq, main_f_dq: main_f_dq};
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};
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let buffer = new ArrayBuffer(4096);
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let module = Module(this, undefined, buffer);
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let view64 = new Float64Array(buffer);
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let view32 = new Float32Array(buffer);
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assertEquals(view64[0] = 2.3, view64[0]);
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module.main_d_f();
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module.main_d_fq();
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module.main_f_dq();
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assertTrue(%IsAsmWasmCode(Module));
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assertEquals(Math.fround(2.3), view64[0]);
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assertTrue(isNaN(view64[1]));
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assertTrue(isNaN(view32[4]));
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