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mark & pointers to Freeze objects as llvm.invariant #6351

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thestinger opened this issue May 9, 2013 · 1 comment
Closed

mark & pointers to Freeze objects as llvm.invariant #6351

thestinger opened this issue May 9, 2013 · 1 comment
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A-codegen Area: Code generation I-slow Issue: Problems and improvements with respect to performance of generated code.

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@thestinger
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Const objects are immutable or can be statically frozen, so this is a safe optimization for all safe code and correct unsafe code. However, there may objects violating the mutability rules with unsafe and requiring #[mutable].
@thestinger
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This isn't the best way to communicate this information.

flip1995 pushed a commit to flip1995/rust that referenced this issue Nov 20, 2020
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Auto merge of rust-lang#6351 - flip1995:rustup, r=flip1995
8325d48 
Rustup

r? `@ghost`

changelog: none
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A-codegen Area: Code generation I-slow Issue: Problems and improvements with respect to performance of generated code.
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