f03430fe4c
This fixes undefined behavior in the implicit cast from double to float
when a double literal is passed through {fround} while declaring a local
variable.
R=jkummerow@chromium.org
TEST=mjsunit/regress/regress-crbug-976934
BUG=chromium:976934
Change-Id: I0efa2bf3f89d32c445f0b9bf719880d17fe9743c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1683999
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62469}
23 lines
495 B
JavaScript
23 lines
495 B
JavaScript
// Copyright 2019 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(stdlib, imports, heap) {
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"use asm";
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var fround = stdlib.Math.fround;
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function f() {
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var x = fround(-1.7976931348623157e+308);
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return fround(x);
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}
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return { f: f };
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}
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var m = Module(this);
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assertEquals(-Infinity, m.f());
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assertTrue(%IsAsmWasmCode(Module));
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