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| author | Xavier Leroy <xavierleroy@users.noreply.github.com> | 2017-02-15 11:30:14 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-02-15 11:30:14 +0100 |
| commit | 53479577c06db853f48cf9927b5039507436be45 (patch) | |
| tree | 53583f62226462200c1c00c1e12806c42c9d1a6d /cparser/Cflow.mli | |
| parent | 4ac453011fb3ee241c6f3023f79c942d99f72eb5 (diff) | |
| parent | 6805bcf7b3ddd78bcbe0e25618ccaf0429ff78ec (diff) | |
| download | compcert-53479577c06db853f48cf9927b5039507436be45.tar.gz compcert-53479577c06db853f48cf9927b5039507436be45.zip | |
Merge pull request #162 from AbsInt/return-analysis-2
Improved warnings related to function returns
Diffstat (limited to 'cparser/Cflow.mli')
| -rw-r--r-- | cparser/Cflow.mli | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/cparser/Cflow.mli b/cparser/Cflow.mli new file mode 100644 index 00000000..0de245ae --- /dev/null +++ b/cparser/Cflow.mli @@ -0,0 +1,24 @@ +(* *********************************************************************) +(* *) +(* The Compcert verified compiler *) +(* *) +(* Xavier Leroy, INRIA Paris-Rocquencourt *) +(* *) +(* Copyright Institut National de Recherche en Informatique et en *) +(* Automatique. All rights reserved. This file is distributed *) +(* under the terms of the GNU General Public License as published by *) +(* the Free Software Foundation, either version 2 of the License, or *) +(* (at your option) any later version. This file is also distributed *) +(* under the terms of the INRIA Non-Commercial License Agreement. *) +(* *) +(* *********************************************************************) + +(* A simple control flow analysis for C statements. + Main purpose: emit warnings for _Noreturn functions. *) + +val function_returns: Env.t -> C.stmt -> bool * bool + (** Given a function body, returns two Booleans: + - the first says whether the function can return + - the second says whether the function can return by falling through + the end of its body. + Both are over-approximations. *) |