diff options
| author |  xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2011-04-09 16:59:13 +0000 |
|---|---|---|
| committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2011-04-09 16:59:13 +0000 |
| commit | abe2bb5c40260a31ce5ee27b841bcbd647ff8b88 (patch) | |
| tree | ae109a136508da283a9e2be5f039c5f9cca4f95c /backend/RTLtyping.v | |
| parent | ffd6080f9e1e742c73ac38354b31c6fc4e3963ba (diff) | |
Merge of branch "unsigned-offsets":
- In pointer values "Vptr b ofs", interpret "ofs" as an unsigned int.
(Fixes issue with wrong comparison of pointers across 0x8000_0000)
- Revised Stacking pass to not use negative SP offsets.
- Add pointer validity checks to Cminor ... Mach
to support the use of memory injections in Stacking.
- Cleaned up Stacklayout modules.
- IA32: improved code generation for Mgetparam.
- ARM: improved code generation for op-immediate instructions.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1632 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'backend/RTLtyping.v')
| -rw-r--r-- | backend/RTLtyping.v | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/backend/RTLtyping.v b/backend/RTLtyping.v index 533c47a..a002746 100644 --- a/backend/RTLtyping.v +++ b/backend/RTLtyping.v @@ -123,7 +123,7 @@ Inductive wt_instr : instruction -> Prop := forall arg tbl, env arg = Tint -> (forall s, In s tbl -> valid_successor s) -> - list_length_z tbl * 4 <= Int.max_signed -> + list_length_z tbl * 4 <= Int.max_unsigned -> wt_instr (Ijumptable arg tbl) | wt_Ireturn: forall optres, @@ -245,7 +245,7 @@ Definition check_instr (i: instruction) : bool := | Ijumptable arg tbl => check_reg arg Tint && List.forallb check_successor tbl - && zle (list_length_z tbl * 4) Int.max_signed + && zle (list_length_z tbl * 4) Int.max_unsigned | Ireturn optres => match optres, funct.(fn_sig).(sig_res) with | None, None => true @@ -527,7 +527,7 @@ Proof. econstructor; eauto. apply wt_regset_assign. auto. replace (env res) with (snd (type_of_operation op)). - apply type_of_operation_sound with fundef unit ge rs##args sp; auto. + eapply type_of_operation_sound; eauto. rewrite <- H6. reflexivity. (* Iload *) econstructor; eauto. |