bors 361c4ea224 Auto merge of #79049 - tmiasko:lower-intrinsics, r=jonas-schievink ... Lower intrinsics calls: forget, size_of, unreachable, wrapping_* This allows constant propagation to evaluate `size_of` and `wrapping_*`, and unreachable propagation to propagate a call to `unreachable`. The lowering is performed as a MIR optimization, rather than during MIR building to preserve the special status of intrinsics with respect to unsafety checks and promotion. Currently enabled by default to determine the performance impact (no significant impact expected). In practice only useful when combined with inlining since intrinsics are rarely used directly (with exception of `unreachable` and `discriminant_value` used by built-in derive macros). Closes #32716.		2020-11-14 22:05:54 +00:00
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src	Auto merge of #79049 - tmiasko:lower-intrinsics, r=jonas-schievink	2020-11-14 22:05:54 +00:00
Cargo.toml	Use tracing spans to trace the entire MIR interp stack	2020-09-28 20:07:57 +02:00