[msan] Model is_int_min_poison to avoid false negative in abs (#148069) Note: since this patch reduces false negatives, buggy code that formerly passed with MSan may start failing. The current MSan handler for abs, like Hercules' in New York, ignores is_int_min_poison. This patch fixes the issue by poisoning the shadow corresponding to each int_min input value if is_int_min_poison.
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