diff options
Diffstat (limited to 'arm/linux/Stacklayout.v')
| -rw-r--r-- | arm/linux/Stacklayout.v | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arm/linux/Stacklayout.v b/arm/linux/Stacklayout.v index 4521114f..d84da6ba 100644 --- a/arm/linux/Stacklayout.v +++ b/arm/linux/Stacklayout.v @@ -109,7 +109,7 @@ Remark frame_env_aligned: /\ (8 | fe.(fe_ofs_float_local)) /\ (8 | fe.(fe_ofs_float_callee_save)) /\ (4 | fe.(fe_ofs_retaddr)) - /\ (4 | fe.(fe_stack_data)) + /\ (8 | fe.(fe_stack_data)) /\ (8 | fe.(fe_size)). Proof. intros. @@ -128,13 +128,15 @@ Proof. set (x5 := x4 + 8 * bound_float_local b). assert (8 | x5). unfold x5. apply Zdivide_plus_r; auto. exists (bound_float_local b); ring. set (x6 := x5 + 8 * bound_float_callee_save b). - assert (4 | x6). - apply Zdivides_trans with 8. exists 2; auto. + assert (8 | x6). unfold x6. apply Zdivide_plus_r; auto. exists (bound_float_callee_save b); ring. + assert (4 | x6). + apply Zdivides_trans with 8. exists 2; auto. auto. set (x7 := x6 + 4). assert (4 | x7). unfold x7; apply Zdivide_plus_r; auto. exists 1; auto. set (x8 := x7 + 4). - assert (4 | x8). unfold x8; apply Zdivide_plus_r; auto. exists 1; auto. + assert (8 | x8). unfold x8, x7. replace (x6 + 4 + 4) with (x6 + 8) by omega. + apply Zdivide_plus_r; auto. exists 1; auto. set (x9 := align (x8 + bound_stack_data b) 8). assert (8 | x9). unfold x9; apply align_divides. omega. tauto. |