[jdk13u-dev] RFR: 8257794: Zero: assert(istate->_stack_limit == istate->_thread->last_Java_sp() + 1) failed: wrong on Linux/x86_32

[Andrew John Hughes]

Hi all,

This pull request contains a backport of commit [df55ecd8](https://github.com/openjdk/jdk/commit/df55ecd83c70e8962e9037671cd13b104d3e5620) from the [openjdk/jdk](https://git.openjdk.java.net/jdk) repository.

The commit being backported was authored by Jie Fu on 9 Dec 2020 and was reviewed by Aleksey Shipilev.

The fix has already been backported to 11u so it makes sense to also fix it in 13u. This unbreaks the slowdebug Zero build on x86_32.

Thanks!

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Commit messages:
 - Backport 73dc222557e11caa1f5999c0c4b346c25f3d62be

Changes: https://git.openjdk.java.net/jdk13u-dev/pull/340/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk13u-dev&pr=340&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8257794
  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk13u-dev/pull/340.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk13u-dev pull/340/head:pull/340

PR: https://git.openjdk.java.net/jdk13u-dev/pull/340