[jdk23u] Integrated: 8332697: ubsan: shenandoahSimpleBitMap.inline.hpp:68:23: runtime error: signed integer overflow: -9223372036854775808 - 1 cannot be represented in type 'long int'

[William Kemper]

On Fri, 4 Oct 2024 17:55:47 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Clean backport. Fixes ubsan error in Shenandoah.

This pull request has now been integrated.

Changeset: 9fdcee9d
Author:    William Kemper <wkemper at openjdk.org>
Committer: Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.org/jdk23u/commit/9fdcee9d2bba8aaa9ea8c0478f8a140d43377c36
Stats:     36 lines in 3 files changed: 9 ins; 0 del; 27 mod

8332697: ubsan: shenandoahSimpleBitMap.inline.hpp:68:23: runtime error: signed integer overflow: -9223372036854775808 - 1 cannot be represented in type 'long int'
8341668: Shenandoah: assert(tail_bits < (idx_t)BitsPerWord) failed: precondition

Reviewed-by: ysr
Backport-of: 57c1db5843db5f2c864318f3234767f436a836e3

-------------

PR: https://git.openjdk.org/jdk23u/pull/135