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Auto merge of #101483 - oli-obk:guaranteed_opt, r=fee1-dead

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The `<*const T>::guaranteed_*` methods now return an option for the unknown case

cc https://github.com/rust-lang/rust/issues/53020#issuecomment-1236932443

I chose `0` for "not equal" and `1` for "equal" and left `2` for the unknown case so backends can just forward to raw pointer equality and it works ✨

r? `@fee1-dead` or `@lcnr`

cc `@rust-lang/wg-const-eval`
This commit is contained in:
bors 2022-09-10 09:50:21 +00:00
commit 5197c96c49
12 changed files with 119 additions and 138 deletions
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3
compiler/rustc_span/src/symbol.rs
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@ -1117,8 +1117,7 @@ symbols! {
profiler_builtins,
profiler_runtime,
ptr,
ptr_guaranteed_eq,
ptr_guaranteed_ne,
ptr_guaranteed_cmp,
ptr_mask,
ptr_null,
ptr_null_mut,