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authorDylan DPC <dylan.dpc@gmail.com>2021-03-21 02:01:34 +0100
committerGitHub <noreply@github.com>2021-03-21 02:01:34 +0100
commit3a113f18f8f2a9b99ae0212b5a27bd56a24655c3 (patch)
treef75e0d066cefb294363bee1bf1d53542b4904eb7 /compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
parent61edfd591cedff66fca639c02f66984f6271e5a6 (diff)
parent8e353bb8eabc761d8fd800a985a859dd635adaa2 (diff)
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Rollup merge of #82707 - BoxyUwU:errooaaar, r=oli-obk
const_evaluatable_checked: Stop eagerly erroring in `is_const_evaluatable`

Fixes #82279

We don't want to be emitting errors inside of is_const_evaluatable because we may call this during selection where it should be able to fail silently

There were two errors being emitted in `is_const_evaluatable`. The one causing the compile error in #82279 was inside the match arm for `FailureKind::MentionsParam` but I moved the other error being emitted too since it made things cleaner imo

The `NotConstEvaluatable` enum \*should\* have a fourth variant for when we fail to evaluate a concrete const, e.g. `0 - 1` but that cant happen until #81339

cc `@oli-obk` `@lcnr`
r? `@nikomatsakis`
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