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| author | Xavier Leroy <xavier.leroy@inria.fr> | 2018-04-23 10:47:10 +0200 |
|---|---|---|
| committer | Xavier Leroy <xavierleroy@users.noreply.github.com> | 2018-04-27 13:54:38 +0200 |
| commit | 6f5eec9f5f1ad4567186172a4519e598af801b94 (patch) | |
| tree | cf7a8249630fc2d130939c076598eef482851f7e /cparser/C.mli | |
| parent | 2f9932b8c5ff116d417c1e5197cd8e51f8d59b5e (diff) | |
| download | compcert-kvx-6f5eec9f5f1ad4567186172a4519e598af801b94.tar.gz compcert-kvx-6f5eec9f5f1ad4567186172a4519e598af801b94.zip | |
Record value of constant expression in C.Scase constructor
The Elab pass checks that the argument of 'case' is a compile-time constant
expression. This commit records the value of this expression in the
C.Scase AST generated by Elab, so that it can be used for further
diagnostics, i.e. checking (in Elab) for duplicate cases.
Note that C2C ignores the recorded value and recomputes the value of
the expression using Ceval.integer_expr. This is intentional:
Ceval.integer_expr is more trustworthy, as it is formally verified
against the CompCert C semantics.
Diffstat (limited to 'cparser/C.mli')
| -rw-r--r-- | cparser/C.mli | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/cparser/C.mli b/cparser/C.mli index d674afb8..cc8d4065 100644 --- a/cparser/C.mli +++ b/cparser/C.mli @@ -220,7 +220,7 @@ and stmt_desc = and slabel = | Slabel of string - | Scase of exp + | Scase of exp * int64 | Sdefault (** Declarations *) |