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| author | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2019-05-03 11:17:57 +0200 |
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| committer | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2019-05-03 11:17:57 +0200 |
| commit | a289d73e791be5a760c8a9b2f3de2064f001a770 (patch) | |
| tree | e106a015b1eb2a33a107135267da9d73243d0215 /mppa_k1c/Asmblockdeps.v | |
| parent | e1c864b670812eda55e0ee129855c69d32c8b84a (diff) | |
| download | compcert-kvx-a289d73e791be5a760c8a9b2f3de2064f001a770.tar.gz compcert-kvx-a289d73e791be5a760c8a9b2f3de2064f001a770.zip | |
use sq to save pairs of registers
Diffstat (limited to 'mppa_k1c/Asmblockdeps.v')
| -rw-r--r-- | mppa_k1c/Asmblockdeps.v | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/mppa_k1c/Asmblockdeps.v b/mppa_k1c/Asmblockdeps.v index b2fa79d1..52af8cdf 100644 --- a/mppa_k1c/Asmblockdeps.v +++ b/mppa_k1c/Asmblockdeps.v @@ -387,11 +387,23 @@ Qed. Hint Resolve load_op_eq_correct: wlp. Opaque load_op_eq_correct. +Definition offset_eq (ofs1 ofs2 : offset): ?? bool := + RET (Ptrofs.eq ofs1 ofs2). + +Lemma offset_eq_correct ofs1 ofs2: + WHEN offset_eq ofs1 ofs2 ~> b THEN b = true -> ofs1 = ofs2. +Proof. + wlp_simplify. + pose (Ptrofs.eq_spec ofs1 ofs2). + rewrite H in *. + trivial. +Qed. +Hint Resolve offset_eq_correct: wlp. Definition store_op_eq (o1 o2: store_op): ?? bool := match o1 with | OStoreRRO n1 ofs1 => - match o2 with OStoreRRO n2 ofs2 => iandb (phys_eq n1 n2) (phys_eq ofs1 ofs2) | _ => RET false end + match o2 with OStoreRRO n2 ofs2 => iandb (phys_eq n1 n2) (offset_eq ofs1 ofs2) | _ => RET false end | OStoreRRR n1 => match o2 with OStoreRRR n2 => phys_eq n1 n2 | _ => RET false end | OStoreRRRXS n1 => @@ -402,7 +414,8 @@ Lemma store_op_eq_correct o1 o2: WHEN store_op_eq o1 o2 ~> b THEN b = true -> o1 = o2. Proof. destruct o1, o2; wlp_simplify; try discriminate. - - congruence. + - f_equal. pose (Ptrofs.eq_spec ofs ofs0). + rewrite H in *. trivial. - congruence. - congruence. Qed. @@ -642,7 +655,7 @@ Definition trans_basic (b: basic) : inst := | PStoreQRRO qs a ofs => let (s0, s1) := gpreg_q_expand qs in [(pmem, Op (Store (OStoreRRO Psd_a ofs)) (PReg (#s0) @ PReg (#a) @ PReg pmem @ Enil)); - (pmem, Op (Store (OStoreRRO Psd_a ofs)) (PReg (#s1) @ PReg (#a) @ PReg pmem @ Enil))] + (pmem, Op (Store (OStoreRRO Psd_a (Ptrofs.add ofs (Ptrofs.repr 8)))) (PReg (#s1) @ PReg (#a) @ PReg pmem @ Enil))] | Pallocframe sz pos => [(#FP, PReg (#SP)); (#SP, Op (Allocframe2 sz pos) (PReg (#SP) @ PReg pmem @ Enil)); (#RTMP, Op (Constant Vundef) Enil); (pmem, Op (Allocframe sz pos) (Old (PReg (#SP)) @ PReg pmem @ Enil))] | Pfreeframe sz pos => [(pmem, Op (Freeframe sz pos) (PReg (#SP) @ PReg pmem @ Enil)); |