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| author |  xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2014-08-17 07:52:12 +0000 |
|---|---|---|
| committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2014-08-17 07:52:12 +0000 |
| commit | 17f519651feb4a09aa90c89c949469e8a5ab0e88 (patch) | |
| tree | c7bda5e43a2d1f950180521a1b854ac9592eea73 /cfrontend/C2C.ml | |
| parent | 88613c0f5415a0d3f2e0e0e9ff74bd32b6b4685e (diff) | |
- Support "switch" statements over 64-bit integers
(in CompCert C to Cminor, included)
- Translation of "switch" to decision trees or jumptables made generic
over the sizes of integers and moved to the Cminor->CminorSel pass
instead of CminorSel->RTL as before.
- CminorSel: add "exitexpr" to support the above.
- ValueDomain: more precise analysis of comparisons against an integer
literal. E.g. "x >=u 0" is always true.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2565 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'cfrontend/C2C.ml')
| -rw-r--r-- | cfrontend/C2C.ml | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/cfrontend/C2C.ml b/cfrontend/C2C.ml index 6ee217c..702fcf2 100644 --- a/cfrontend/C2C.ml +++ b/cfrontend/C2C.ml @@ -765,8 +765,6 @@ let rec convertStmt ploc env s = | C.Scontinue -> Scontinue | C.Sswitch(e, s1) -> - if is_longlong env e.etyp then - unsupported "'switch' on an argument of type 'long long'"; let (init, cases) = groupSwitch (flattenSwitch s1) in if cases = [] then unsupported "ill-formed 'switch' statement"; @@ -810,7 +808,7 @@ and convertSwitch ploc env = function match Ceval.integer_expr env e with | None -> unsupported "'case' label is not a compile-time integer"; None - | Some v -> Some (convertInt v) + | Some v -> Some (Z.of_uint64 v) in LScons(lbl', convertStmt ploc env s, convertSwitch s.sloc env rem) |