diff options
Diffstat (limited to 'src/Compilers/Z/ArithmeticSimplifierInterp.v')
| -rw-r--r-- | src/Compilers/Z/ArithmeticSimplifierInterp.v | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/Compilers/Z/ArithmeticSimplifierInterp.v b/src/Compilers/Z/ArithmeticSimplifierInterp.v index cd76a3479..c34089a60 100644 --- a/src/Compilers/Z/ArithmeticSimplifierInterp.v +++ b/src/Compilers/Z/ArithmeticSimplifierInterp.v @@ -174,6 +174,9 @@ Proof. | progress change (2^1)%Z with 2%Z in * | progress rewrite ?Z.land_0_l, ?Z.land_0_r, ?Z.lor_0_l, ?Z.lor_0_r, ?Z.opp_involutive, ?Z.shiftr_0_r | progress rewrite ?Z.land_ones by lia + | match goal with + | [ H : (?bitwidth < 0)%Z, H' : context[(2^?bitwidth)%Z] |- _ ] => is_var bitwidth; destruct bitwidth; cbn in H + end | progress autorewrite with Zshift_to_pow in * | rewrite !Z.sub_with_borrow_to_add_get_carry | progress cbv [Z.add_with_carry] |