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| author | Xavier Leroy <xavier.leroy@inria.fr> | 2017-06-15 15:11:26 +0200 |
|---|---|---|
| committer | Bernhard Schommer <bschommer@users.noreply.github.com> | 2017-07-06 15:41:51 +0200 |
| commit | dff22ef6d855973e0e0f05c7203a6bfa9a4cf01a (patch) | |
| tree | 82c09b8cff023557084d6257acdef84b1311dd35 /backend/CminorSel.v | |
| parent | 92fc8a425034abc1247203a4c0d471e8b6d0e941 (diff) | |
| download | compcert-kvx-dff22ef6d855973e0e0f05c7203a6bfa9a4cf01a.tar.gz compcert-kvx-dff22ef6d855973e0e0f05c7203a6bfa9a4cf01a.zip | |
Extend builtin arguments with a pointer addition operator
This extension enables more addressing modes to be encoded as builtin arguments and used in conjunction with volatile memory accesses.
Current status: x86 port only, the only new addressing mode handled is reg + offset.
Diffstat (limited to 'backend/CminorSel.v')
| -rw-r--r-- | backend/CminorSel.v | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/backend/CminorSel.v b/backend/CminorSel.v index 9439c269..96cb8ae6 100644 --- a/backend/CminorSel.v +++ b/backend/CminorSel.v @@ -272,7 +272,11 @@ Inductive eval_builtin_arg: builtin_arg expr -> val -> Prop := eval_builtin_arg (BA_addrglobal id ofs) (Genv.symbol_address ge id ofs) | eval_BA_splitlong: forall a1 a2 v1 v2, eval_expr nil a1 v1 -> eval_expr nil a2 v2 -> - eval_builtin_arg (BA_splitlong (BA a1) (BA a2)) (Val.longofwords v1 v2). + eval_builtin_arg (BA_splitlong (BA a1) (BA a2)) (Val.longofwords v1 v2) + | eval_BA_addptr: forall a1 v1 a2 v2, + eval_builtin_arg a1 v1 -> eval_builtin_arg a2 v2 -> + eval_builtin_arg (BA_addptr a1 a2) + (if Archi.ptr64 then Val.addl v1 v2 else Val.add v1 v2). End EVAL_EXPR. |