• Jakob Kummerow's avatar
    [bigint] Fix harmless DCHECK failure · a6ab4e00
    Jakob Kummerow authored
    Behavior in Release mode was correct; Debug mode triggered a DCHECK
    failure that indicated an inefficiency: when a requested truncation
    would be a no-op, we should return the original BigInt, rather than
    creating a copy. In the special case of -2^(n-1), i.e. the smallest
    negative n-bit integer, getting truncated to n bits, with n being a
    multiple of kDigitBits, this shortcut was not taken.
    
    Bug: v8:8426
    Change-Id: I8e4595d9ac0dbef81aae06688f9a9636bd2d9cd9
    Reviewed-on: https://chromium-review.googlesource.com/c/1325029Reviewed-by: 's avatarGeorg Neis <neis@chromium.org>
    Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#57369}
    a6ab4e00
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