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authorbors <bors@rust-lang.org>2023-03-22 02:49:04 +0000
committerbors <bors@rust-lang.org>2023-03-22 02:49:04 +0000
commit5fa73a75ce94faf1d1008ec96c043134ef0df427 (patch)
treee8f6e1fed6ab091f8eb7793e27b3a6b66ec05e4b /compiler/rustc_codegen_gcc/src
parent6dc3999c2699461aa930b8c1e00f99e73dcc0174 (diff)
parente5a55dc2c545643e6a7bee2eb34535544228c699 (diff)
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Auto merge of #109087 - cjgillot:sparse-bb-clear, r=davidtwco
Only clear written-to locals in ConstProp

This aims to revert the regression in https://github.com/rust-lang/rust/pull/108872

Clearing all locals at the end of each bb is very costly.
This PR goes back to the original implementation of recording which locals are modified.
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