Remove implementation for the unreachable intrinsic
#1100
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danielsn
approved these changes
Apr 25, 2022
| @@ -0,0 +1,2 @@ | |||
| FAILURE\ | |||
| "unreachable code" | |||
zhassan-aws
reviewed
Apr 25, 2022
| @@ -607,12 +607,6 @@ impl<'tcx> GotocCtx<'tcx> { | |||
| } | |||
| "unchecked_sub" => codegen_op_with_overflow_check!(sub_overflow), | |||
| "unlikely" => self.codegen_expr_to_place(p, fargs.remove(0)), | |||
| "unreachable" => self.codegen_assert( | |||
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Since unreachable should be unreachable, I suggest making this more explicit:
"unreachable" => unreachable!("Expecting unreachable intrinsic to be handled using Terminator::Unreachable")because just removing it gives the impression that it is not yet implemented (gets included in the _ bucket at the end of match statement).
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Ok, I will add this in a follow-up PR.
This was referenced Apr 27, 2022
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tedinski
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Apr 27, 2022
* Remove `unreachable` from intrinsics * Add test for uses of `unreachable`
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Description of changes:
The implementation we had for the
unreachableintrinsic is unreachable itself. The code being executed is actually theTerminatorKind::Unreachable, which generates an assert-false statement with the message "unreachable code".Adding a test to ensure this keeps happening.
Resolved issues:
Part of #727
Call-outs:
Testing:
How is this change tested? Adds one test.
Is this a refactor change? No.
Checklist
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 and MIT licenses.