Fix memory leak in allocateSpilled - #2328
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When allocateSpilled creates a new Hunk, it unconditionally overwrites `top->above` with the new Hunk pointer. If `top->above` already pointed to an existing Hunk left behind by a prior Push/Pop cycle, that existing Hunk becomes detached from the chain and leaks. Signed-off-by: JingLi <1162004224@qq.com>
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Description
When function
allocateSpilledcreates a new Hunk, it unconditionally overwritestop->abovewith the new Hunk pointer. Iftop->abovealready pointed to an existing Hunk left behind by a prior Push/Pop cycle, that existing Hunk becomes detached from the chain and leaks.More details can be found in the issue corresponding to this PR.
Related Issues
Fixes #2324
Changes & Impact
Performance Impact