Commit 6e0ecff
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Auto merge of #150605 - RalfJung:fallback-intrinsic-skip, r=mati865
skip codegen for intrinsics with big fallback bodies if backend does not need them
This hopefully fixes the perf regression from rust-lang/rust#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 rust-lang/rust#149945
Cc @scottmcm @bjorn30 file changed
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