diff options
| -rw-r--r-- | riscV/Asmgen.v | 15 | ||||
| -rw-r--r-- | riscV/Asmgenproof.v | 2 | ||||
| -rw-r--r-- | riscV/Asmgenproof1.v | 22 |
3 files changed, 25 insertions, 14 deletions
diff --git a/riscV/Asmgen.v b/riscV/Asmgen.v index a704ed74..5952aa82 100644 --- a/riscV/Asmgen.v +++ b/riscV/Asmgen.v @@ -503,11 +503,16 @@ Definition transl_op OK (Psrliw rd rs n :: k) | Oshrximm n, a1 :: nil => do rd <- ireg_of res; do rs <- ireg_of a1; - OK (if Int.eq n Int.zero then Pmv rd rs :: k else - Psraiw X31 rs (Int.repr 31) :: - Psrliw X31 X31 (Int.sub Int.iwordsize n) :: - Paddw X31 rs X31 :: - Psraiw rd X31 n :: k) + OK (if Int.eq n Int.zero + then Pmv rd rs :: k + else if Int.eq n Int.one + then Psrliw X31 rs (Int.repr 31) :: + Paddw X31 rs X31 :: + Psraiw rd X31 Int.one :: k + else Psraiw X31 rs (Int.repr 31) :: + Psrliw X31 X31 (Int.sub Int.iwordsize n) :: + Paddw X31 rs X31 :: + Psraiw rd X31 n :: k) (* [Omakelong], [Ohighlong] should not occur *) | Olowlong, a1 :: nil => diff --git a/riscV/Asmgenproof.v b/riscV/Asmgenproof.v index 5ec57886..1f3f80d7 100644 --- a/riscV/Asmgenproof.v +++ b/riscV/Asmgenproof.v @@ -285,7 +285,7 @@ Opaque Int.eq. - apply opimm32_label; intros; exact I. - apply opimm32_label; intros; exact I. - apply opimm32_label; intros; exact I. -- destruct (Int.eq n Int.zero); TailNoLabel. +- destruct (Int.eq n Int.zero); try destruct (Int.eq n Int.one); TailNoLabel. - apply opimm64_label; intros; exact I. - apply opimm64_label; intros; exact I. - apply opimm64_label; intros; exact I. diff --git a/riscV/Asmgenproof1.v b/riscV/Asmgenproof1.v index c20c4e49..3a1b6d13 100644 --- a/riscV/Asmgenproof1.v +++ b/riscV/Asmgenproof1.v @@ -1035,17 +1035,23 @@ Opaque Int.eq. intros (rs' & A & B & C). exists rs'; split; eauto. rewrite B; auto with asmgen. - (* shrximm *) - clear H. exploit Val.shrx_shr_2; eauto. intros E; subst v; clear EV. + clear H. exploit Val.shrx_shr_3; eauto. intros E; subst v; clear EV. destruct (Int.eq n Int.zero). + econstructor; split. apply exec_straight_one. simpl; eauto. auto. split; intros; Simpl. -+ change (Int.repr 32) with Int.iwordsize. set (n' := Int.sub Int.iwordsize n). - econstructor; split. - eapply exec_straight_step. simpl; reflexivity. auto. - eapply exec_straight_step. simpl; reflexivity. auto. - eapply exec_straight_step. simpl; reflexivity. auto. - apply exec_straight_one. simpl; reflexivity. auto. - split; intros; Simpl. ++ destruct (Int.eq n Int.one). + * econstructor; split. + eapply exec_straight_step. simpl; reflexivity. auto. + eapply exec_straight_step. simpl; reflexivity. auto. + apply exec_straight_one. simpl; reflexivity. auto. + split; intros; Simpl. + * change (Int.repr 32) with Int.iwordsize. set (n' := Int.sub Int.iwordsize n). + econstructor; split. + eapply exec_straight_step. simpl; reflexivity. auto. + eapply exec_straight_step. simpl; reflexivity. auto. + eapply exec_straight_step. simpl; reflexivity. auto. + apply exec_straight_one. simpl; reflexivity. auto. + split; intros; Simpl. - (* longofintu *) econstructor; split. eapply exec_straight_three. simpl; eauto. simpl; eauto. simpl; eauto. auto. auto. auto. |