Handle non returning intrinsics #736
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adpaco-aws
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celinval
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Jan 7, 2022
| let loc = self.codegen_span_option(span); | ||
| debug!("codegen_nonret_intrinsic:\n\tinstance {:?}\n\tspan {:?}", instance, span); | ||
| match intrinsic { | ||
| "abort" => Stmt::assert_false("reached intrinsic::abort", loc), |
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I recommend using GotocCtx::codegen_fatal_error() here. The Stmt::assert_false will not abort the program execution path.
celinval
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Jan 7, 2022
| @@ -29,6 +29,24 @@ impl<'tcx> GotocCtx<'tcx> { | |||
| self.codegen_expr_to_place(p, e) | |||
| } | |||
|
|
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| /// Handles codegen for non returning intrinsics | |||
| /// Non returning intrinsics are not associated with a destination | |||
| pub fn codegen_nonret_intrinsic( | |||
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nit: I would rename it to codegen_never_return_intrinsic()
celinval
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Jan 7, 2022
|
Thanks @celinval ! Renamed and replaced |
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tedinski
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Apr 22, 2022
* Handle non returning intrinsics * Newline in comment * Address comments
tedinski
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Apr 25, 2022
* Handle non returning intrinsics * Newline in comment * Address comments
tedinski
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Apr 26, 2022
* Handle non returning intrinsics * Newline in comment * Address comments
tedinski
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Apr 27, 2022
* Handle non returning intrinsics * Newline in comment * Address comments
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Description of changes:
Adds a specific function for handling of non returning intrinsics, which currently are
abortand a special case oftransmute.Resolved issues:
Resolves #734
Call-outs:
Wrote a function for these special intrinsics but they can also be handled within the
codegen_intrinsicfunction. That would require passingpas an option (i.e., not unwrap before call tocodegen_intrinsic) and match on it at the beginning ofcodegen_intrinsic. Let me know if you prefer it that way.Testing:
How is this change tested? Existing regression + new test for transmute.
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.