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| author | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2009-11-01 16:51:47 +0000 |
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| committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2009-11-01 16:51:47 +0000 |
| commit | 3ccc93675292bf9a44ac0d7111d3f44981e1f56d (patch) | |
| tree | 2879f37d1625e035f21134bc2307fce427531ce4 /cfrontend | |
| parent | 033aa0555a209fa3e825b1eeb8a5fc00ff8163e3 (diff) | |
| download | compcert-3ccc93675292bf9a44ac0d7111d3f44981e1f56d.tar.gz compcert-3ccc93675292bf9a44ac0d7111d3f44981e1f56d.zip | |
Preliminary support for small data area in PowerPC port.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1163 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'cfrontend')
| -rw-r--r-- | cfrontend/Cil2Csyntax.ml | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/cfrontend/Cil2Csyntax.ml b/cfrontend/Cil2Csyntax.ml index b8a88deb..20a5b7a6 100644 --- a/cfrontend/Cil2Csyntax.ml +++ b/cfrontend/Cil2Csyntax.ml @@ -1252,3 +1252,18 @@ let atom_is_readonly a = with Not_found -> false +let atom_is_small_data a ofs = + match Configuration.system with + | "linux" -> + if !Clflags.option_fsda then begin + try + let v = Hashtbl.find varinfo_atom a in + let sz = Cil.bitsSizeOf v.vtype / 8 in + let ofs = camlint_of_coqint ofs in + sz <= 8 && ofs >= 0l && ofs < Int32.of_int sz + with Not_found -> + false + end else + false + | _ -> + false |