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Attach more precise meta-data to variables introduced at compile-time #753

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merged 4 commits into from
Mar 15, 2024
Merged

Attach more precise meta-data to variables introduced at compile-time #753

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2c2ff5c
Introduce proper location info to dummy variables in x86 lowering.
J08nY Mar 8, 2024
9d28078
Introduce proper location info to dummy variables in ARM lowering.
J08nY Mar 8, 2024
371e3bf
Fix lowering proofs
sarranz Mar 8, 2024
25e1d97
Proper var info in add-array-init
vbgl Mar 13, 2024
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Proper var info in add-array-init
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@vbgl
vbgl committed Mar 13, 2024
commit 25e1d9712a0373ae1e1b6eb7c892f8c92816e108
4 changes: 4 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -125,6 +125,10 @@
([PR #751](https://github.com/jasmin-lang/jasmin/pull/751);
fixes [#750](https://github.com/jasmin-lang/jasmin/issues/750)).

- Attach more precise meta-data to variables introduced at compile-time
([PR #753](https://github.com/jasmin-lang/jasmin/pull/753);
fixes [#718](https://github.com/jasmin-lang/jasmin/issues/718)).

## Other changes

- Pretty-printing of Jasmin programs is more precise
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4 changes: 2 additions & 2 deletions proofs/compiler/arm_stack_zeroization_proof.v
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Expand Up @@ -811,7 +811,7 @@ Proof.
have hlinear: [elaborate
is_linear_of lp fn
(lc
++ stack_zero_loop (mk_var_i (vid rspn)) lbl ws_align ws stk_max
++ stack_zero_loop (vid rspn) lbl ws_align ws stk_max
++ [::])].
+ by rewrite cats0; exists lfd.
subst top.
Expand All @@ -823,7 +823,7 @@ Proof.
have hlinear: [elaborate
is_linear_of lp fn
(lc
++ stack_zero_unrolled (mk_var_i (vid rspn)) ws_align ws stk_max
++ stack_zero_unrolled (vid rspn) ws_align ws stk_max
++ [::])].
+ by rewrite cats0; exists lfd.
have := stack_zero_unrolledP
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2 changes: 1 addition & 1 deletion proofs/compiler/array_init.v
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Expand Up @@ -91,7 +91,7 @@ Definition add_init_aux ii x c :=
match x.(vtype) with
| sarr n =>
if ~~ is_ptr x then
let x := VarI x dummy_var_info in
let x := VarI x (var_info_of_ii ii) in
MkI ii (Cassgn (Lvar x) AT_none (sarr n) (Parr_init n)) :: c
else c
| _ => c
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