Add return statements in noreturn functions
#129
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(option to) add always add return statements in functions that fall through, specifically those marked noreturn
michael-schwarz
approved these changes
Jan 26, 2023
sim642
approved these changes
Jan 26, 2023
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@just-max: any reason this is still marked as a draft? |
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I haven't gotten around to testing the changes yet, especially how they interact with the changes in Goblint, so I'd wait for that before merging here. |
sim642
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Sep 11, 2023
CHANGES: * Rename `Rmtmps` to `RmUnused` (goblint/cil#135). * Add option to add return statement to `noreturn` functions (goblint/cil#129). * Fix empty `if`s being removed (goblint/cil#140). * Fix `_Float128` support (goblint/cil#118, goblint/cil#119). * Fix C11 `_Alignas` computation (goblint/cil#130). * Fix renaming and merging of `inline` functions based on C standard (goblint/cil#120, goblint/cil#124). * Fix `Pretty` not resetting all global state between calls (goblint/cil#133, goblint/cil#134). * Fix `fundec` location in merger (goblint/cil#139). * Fix `cilly` patcher (goblint/cil#128). * Disable basename by default in parser.
nberth
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Jun 18, 2024
CHANGES: * Rename `Rmtmps` to `RmUnused` (goblint/cil#135). * Add option to add return statement to `noreturn` functions (goblint/cil#129). * Fix empty `if`s being removed (goblint/cil#140). * Fix `_Float128` support (goblint/cil#118, goblint/cil#119). * Fix C11 `_Alignas` computation (goblint/cil#130). * Fix renaming and merging of `inline` functions based on C standard (goblint/cil#120, goblint/cil#124). * Fix `Pretty` not resetting all global state between calls (goblint/cil#133, goblint/cil#134). * Fix `fundec` location in merger (goblint/cil#139). * Fix `cilly` patcher (goblint/cil#128). * Disable basename by default in parser.
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(Option to) add always add return statements in functions that fall through, specifically those marked
noreturn. The justification for adding this change to CIL: currently CIL always adds a return statement if it is at all possible for the function to reach the end of its body. Fornoreturnfunctions, however, it trusts that these functions never reach their end. This makes the behaviour arguably more consistent between functions markednoreturnand functions that are not.Fixes goblint/analyzer#951. Fixes the issue blocking goblint/analyzer#953. See also goblint/analyzer#953 (comment).