[InstCombine] Simplify with.overflow intrinsics with assumption information #84016
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dtcxzyw
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Mar 5, 2024
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Closed in favor of rust-lang/rust#122282. |
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Hmm, this is the first step, and we still need subsequent PRs to complete this simplification. |
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@DianQK Should I close this PR since rust-lang/rust#122975 landed? |
I believe it will take at least two more PRs to resolve this issue. The first one is rust-lang/rust#123256 (comment). Given the differences in inlining rules between Rust and LLVM, there are likely some edge cases that still cannot be resolved. |
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Related issue: rust-lang/hashbrown#509 #80637