diff options
| author |  xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2008-04-12 15:06:13 +0000 |
|---|---|---|
| committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2008-04-12 15:06:13 +0000 |
| commit | 41ef4d52e3c328d930979115cb4fd388cda09440 (patch) | |
| tree | 82cdf63d42d4231d19610a57af2a849cf6f1b0ad /backend/Stacking.v | |
| parent | aaa49526068f528f2233de0dace43549432fba52 (diff) | |
Revu le traitement de la 'red zone' en bas de la pile
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@605 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'backend/Stacking.v')
| -rw-r--r-- | backend/Stacking.v | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/backend/Stacking.v b/backend/Stacking.v index a1310aa..3f08daa 100644 --- a/backend/Stacking.v +++ b/backend/Stacking.v @@ -52,6 +52,8 @@ The [frame_env] compilation environment records the positions of the boundaries between areas in the frame part. *) +Definition fe_ofs_arg := 24. + Record frame_env : Set := mk_frame_env { fe_size: Z; fe_ofs_link: Z; @@ -68,7 +70,7 @@ Record frame_env : Set := mk_frame_env { function. *) Definition make_env (b: bounds) := - let oil := 4 * b.(bound_outgoing) in (* integer locals *) + let oil := 24 + 4 * b.(bound_outgoing) in (* integer locals *) let oics := oil + 4 * b.(bound_int_local) in (* integer callee-saves *) let oendi := oics + 4 * b.(bound_int_callee_save) in let ofl := align oendi 8 in (* float locals *) @@ -95,7 +97,7 @@ Definition offset_of_index (fe: frame_env) (idx: frame_index) := | FI_retaddr => fe.(fe_ofs_retaddr) | FI_local x Tint => fe.(fe_ofs_int_local) + 4 * x | FI_local x Tfloat => fe.(fe_ofs_float_local) + 8 * x - | FI_arg x ty => 4 * x + | FI_arg x ty => fe_ofs_arg + 4 * x | FI_saved_int x => fe.(fe_ofs_int_callee_save) + 4 * x | FI_saved_float x => fe.(fe_ofs_float_callee_save) + 8 * x end. |