skip codegen for intrinsics with big fallback bodies if backend does not need them#150605
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rust-bors[bot] merged 1 commit intorust-lang:mainfrom Feb 4, 2026
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This hopefully fixes the perf regression from #148478. I only added the intrinsics with big fallback bodies to the list; it doesn't seem worth the effort of going through the entire list.
Fixes #149945
Cc @scottmcm @bjorn3