78da577650
Cleanup blocks are declared with `bb (cleanup) = { ... }`.
`Call` and `Drop` terminators take an additional argument describing the
unwind action, which is one of the following:
* `UnwindContinue()`
* `UnwindUnreachable()`
* `UnwindTerminate(reason)`, where reason is `ReasonAbi` or `ReasonInCleanup`
* `UnwindCleanup(block)`
Also support unwind resume and unwind terminate terminators:
* `UnwindResume()`
* `UnwindTerminate(reason)`
35 lines
679 B
Rust
35 lines
679 B
Rust
// skip-filecheck
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// EMIT_MIR_FOR_EACH_PANIC_STRATEGY
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// unit-test: CopyProp
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#![feature(custom_mir, core_intrinsics)]
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#![allow(unused_assignments)]
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extern crate core;
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use core::intrinsics::mir::*;
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struct NotCopy(bool);
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// EMIT_MIR custom_move_arg.f.CopyProp.diff
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#[custom_mir(dialect = "analysis", phase = "post-cleanup")]
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fn f(_1: NotCopy) {
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mir!({
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let _2 = _1;
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Call(RET = opaque(Move(_1)), bb1, UnwindContinue())
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}
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bb1 = {
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let _3 = Move(_2);
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Call(RET = opaque(_3), bb2, UnwindContinue())
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}
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bb2 = {
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Return()
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})
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}
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#[inline(never)]
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fn opaque<T>(_t: T) {}
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fn main() {
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f(NotCopy(true));
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println!("hi");
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}
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