From 7cdd676d002e33015b496f609538a9e86d77c543 Mon Sep 17 00:00:00 2001 From: Xavier Leroy Date: Thu, 8 Aug 2019 11:18:38 +0200 Subject: AArch64 port This commit adds a back-end for the AArch64 architecture, namely ARMv8 in 64-bit mode. --- aarch64/ConstpropOp.vp | 401 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 401 insertions(+) create mode 100644 aarch64/ConstpropOp.vp (limited to 'aarch64/ConstpropOp.vp') diff --git a/aarch64/ConstpropOp.vp b/aarch64/ConstpropOp.vp new file mode 100644 index 00000000..c0a2c6bf --- /dev/null +++ b/aarch64/ConstpropOp.vp @@ -0,0 +1,401 @@ +(* *********************************************************************) +(* *) +(* The Compcert verified compiler *) +(* *) +(* Xavier Leroy, Collège de France and INRIA Paris *) +(* *) +(* Copyright Institut National de Recherche en Informatique et en *) +(* Automatique. All rights reserved. This file is distributed *) +(* under the terms of the INRIA Non-Commercial License Agreement. *) +(* *) +(* *********************************************************************) + +(** Strength reduction for operators and conditions. + This is the machine-dependent part of [Constprop]. *) + +Require Archi. +Require Import Coqlib Compopts. +Require Import AST Integers Floats. +Require Import Op Registers. +Require Import ValueDomain ValueAOp. + +(** * Converting known values to constants *) + +Definition const_for_result (a: aval) : option operation := + match a with + | I n => Some(Ointconst n) + | L n => Some(Olongconst n) + | F n => if Compopts.generate_float_constants tt then Some(Ofloatconst n) else None + | FS n => if Compopts.generate_float_constants tt then Some(Osingleconst n) else None + | Ptr(Gl id ofs) => Some(Oaddrsymbol id ofs) + | Ptr(Stk ofs) => Some(Oaddrstack ofs) + | _ => None + end. + +(** * Operator strength reduction *) + +Definition eval_static_shift (s: shift) (v: int) (n: amount32) : int := + match s with + | Slsl => Int.shl v n + | Slsr => Int.shru v n + | Sasr => Int.shr v n + | Sror => Int.ror v n + end. + +Definition eval_static_shiftl (s: shift) (v: int64) (n: amount64) : int64 := + match s with + | Slsl => Int64.shl' v n + | Slsr => Int64.shru' v n + | Sasr => Int64.shr' v n + | Sror => Int64.ror v (Int64.repr (Int.unsigned n)) + end. + +Definition eval_static_extend (x: extension) (v: int) (n: amount64) : int64 := + Int64.shl' (match x with Xsgn32 => Int64.repr (Int.signed v) + | Xuns32 => Int64.repr (Int.unsigned v) end) + n. + +Nondetfunction cond_strength_reduction + (cond: condition) (args: list reg) (vl: list aval) := + match cond, args, vl with + | Ccomp c, r1 :: r2 :: nil, I n1 :: v2 :: nil => + (Ccompimm (swap_comparison c) n1, r2 :: nil) + | Ccomp c, r1 :: r2 :: nil, v1 :: I n2 :: nil => + (Ccompimm c n2, r1 :: nil) + | Ccompu c, r1 :: r2 :: nil, I n1 :: v2 :: nil => + (Ccompuimm (swap_comparison c) n1, r2 :: nil) + | Ccompu c, r1 :: r2 :: nil, v1 :: I n2 :: nil => + (Ccompuimm c n2, r1 :: nil) + | Ccompshift c s a, r1 :: r2 :: nil, v1 :: I n2 :: nil => + (Ccompimm c (eval_static_shift s n2 a), r1 :: nil) + | Ccompushift c s a, r1 :: r2 :: nil, v1 :: I n2 :: nil => + (Ccompuimm c (eval_static_shift s n2 a), r1 :: nil) + | Ccompl c, r1 :: r2 :: nil, L n1 :: v2 :: nil => + (Ccomplimm (swap_comparison c) n1, r2 :: nil) + | Ccompl c, r1 :: r2 :: nil, v1 :: L n2 :: nil => + (Ccomplimm c n2, r1 :: nil) + | Ccomplu c, r1 :: r2 :: nil, L n1 :: v2 :: nil => + (Ccompluimm (swap_comparison c) n1, r2 :: nil) + | Ccomplu c, r1 :: r2 :: nil, v1 :: L n2 :: nil => + (Ccompluimm c n2, r1 :: nil) + | Ccomplshift c s a, r1 :: r2 :: nil, v1 :: L n2 :: nil => + (Ccomplimm c (eval_static_shiftl s n2 a), r1 :: nil) + | Ccomplushift c s a, r1 :: r2 :: nil, v1 :: L n2 :: nil => + (Ccompluimm c (eval_static_shiftl s n2 a), r1 :: nil) + | Ccompf c, r1 :: r2 :: nil, F n1 :: v2 :: nil => + if Float.eq_dec n1 Float.zero + then (Ccompfzero (swap_comparison c), r2 :: nil) + else (cond, args) + | Ccompf c, r1 :: r2 :: nil, v1 :: F n2 :: nil => + if Float.eq_dec n2 Float.zero + then (Ccompfzero c, r1 :: nil) + else (cond, args) + | Cnotcompf c, r1 :: r2 :: nil, F n1 :: v2 :: nil => + if Float.eq_dec n1 Float.zero + then (Cnotcompfzero (swap_comparison c), r2 :: nil) + else (cond, args) + | Cnotcompf c, r1 :: r2 :: nil, v1 :: F n2 :: nil => + if Float.eq_dec n2 Float.zero + then (Cnotcompfzero c, r1 :: nil) + else (cond, args) + | Ccompfs c, r1 :: r2 :: nil, FS n1 :: v2 :: nil => + if Float32.eq_dec n1 Float32.zero + then (Ccompfszero (swap_comparison c), r2 :: nil) + else (cond, args) + | Ccompfs c, r1 :: r2 :: nil, v1 :: FS n2 :: nil => + if Float32.eq_dec n2 Float32.zero + then (Ccompfszero c, r1 :: nil) + else (cond, args) + | Cnotcompfs c, r1 :: r2 :: nil, FS n1 :: v2 :: nil => + if Float32.eq_dec n1 Float32.zero + then (Cnotcompfszero (swap_comparison c), r2 :: nil) + else (cond, args) + | Cnotcompfs c, r1 :: r2 :: nil, v1 :: FS n2 :: nil => + if Float32.eq_dec n2 Float32.zero + then (Cnotcompfszero c, r1 :: nil) + else (cond, args) + | _, _, _ => + (cond, args) + end. + +Definition make_cmp_base (c: condition) (args: list reg) (vl: list aval) := + let (c', args') := cond_strength_reduction c args vl in (Ocmp c', args'). + +Definition make_cmp_imm_eq (c: condition) (args: list reg) (vl: list aval) + (n: int) (r1: reg) (v1: aval) := + if Int.eq_dec n Int.one && vincl v1 (Uns Ptop 1) then (Omove, r1 :: nil) + else if Int.eq_dec n Int.zero && vincl v1 (Uns Ptop 1) then (Oxorimm Int.one, r1 :: nil) + else make_cmp_base c args vl. + +Definition make_cmp_imm_ne (c: condition) (args: list reg) (vl: list aval) + (n: int) (r1: reg) (v1: aval) := + if Int.eq_dec n Int.zero && vincl v1 (Uns Ptop 1) then (Omove, r1 :: nil) + else if Int.eq_dec n Int.one && vincl v1 (Uns Ptop 1) then (Oxorimm Int.one, r1 :: nil) + else make_cmp_base c args vl. + +Nondetfunction make_cmp (c: condition) (args: list reg) (vl: list aval) := + match c, args, vl with + | Ccompimm Ceq n, r1 :: nil, v1 :: nil => + make_cmp_imm_eq c args vl n r1 v1 + | Ccompimm Cne n, r1 :: nil, v1 :: nil => + make_cmp_imm_ne c args vl n r1 v1 + | Ccompuimm Ceq n, r1 :: nil, v1 :: nil => + make_cmp_imm_eq c args vl n r1 v1 + | Ccompuimm Cne n, r1 :: nil, v1 :: nil => + make_cmp_imm_ne c args vl n r1 v1 + | _, _, _ => + make_cmp_base c args vl + end. + +Definition make_select (c: condition) (ty: typ) + (r1 r2: reg) (args: list reg) (vl: list aval) := + match resolve_branch (eval_static_condition c vl) with + | Some b => (Omove, (if b then r1 else r2) :: nil) + | None => + let (c', args') := cond_strength_reduction c args vl in + (Osel c' ty, r1 :: r2 :: args') + end. + +Definition make_addimm (n: int) (r: reg) := + if Int.eq n Int.zero + then (Omove, r :: nil) + else (Oaddimm n, r :: nil). + +Definition make_shlimm (n: int) (r1 r2: reg) := + if Int.eq n Int.zero then (Omove, r1 :: nil) + else if Int.ltu n Int.iwordsize then (Oshift Slsl (mk_amount32 n), r1 :: nil) + else (Oshl, r1 :: r2 :: nil). + +Definition make_shrimm (n: int) (r1 r2: reg) := + if Int.eq n Int.zero then (Omove, r1 :: nil) + else if Int.ltu n Int.iwordsize then (Oshift Sasr (mk_amount32 n), r1 :: nil) + else (Oshr, r1 :: r2 :: nil). + +Definition make_shruimm (n: int) (r1 r2: reg) := + if Int.eq n Int.zero then (Omove, r1 :: nil) + else if Int.ltu n Int.iwordsize then (Oshift Slsr (mk_amount32 n), r1 :: nil) + else (Oshru, r1 :: r2 :: nil). + +Definition make_mulimm (n: int) (r1 r2: reg) := + if Int.eq n Int.zero then + (Ointconst Int.zero, nil) + else if Int.eq n Int.one then + (Omove, r1 :: nil) + else + match Int.is_power2 n with + | Some l => (Oshift Slsl (mk_amount32 l), r1 :: nil) + | None => (Omul, r1 :: r2 :: nil) + end. + +Definition make_andimm (n: int) (r: reg) (a: aval) := + if Int.eq n Int.zero then (Ointconst Int.zero, nil) + else if Int.eq n Int.mone then (Omove, r :: nil) + else if match a with Uns _ m => Int.eq (Int.zero_ext m (Int.not n)) Int.zero + | _ => false end + then (Omove, r :: nil) + else (Oandimm n, r :: nil). + +Definition make_orimm (n: int) (r: reg) := + if Int.eq n Int.zero then (Omove, r :: nil) + else if Int.eq n Int.mone then (Ointconst Int.mone, nil) + else (Oorimm n, r :: nil). + +Definition make_xorimm (n: int) (r: reg) := + if Int.eq n Int.zero then (Omove, r :: nil) + else (Oxorimm n, r :: nil). + +Definition make_divimm n (r1 r2: reg) := + if Int.eq n Int.one then + (Omove, r1 :: nil) + else + match Int.is_power2 n with + | Some l => if Int.ltu l (Int.repr 31) + then (Oshrximm l, r1 :: nil) + else (Odiv, r1 :: r2 :: nil) + | None => (Odiv, r1 :: r2 :: nil) + end. + +Definition make_divuimm n (r1 r2: reg) := + if Int.eq n Int.one then + (Omove, r1 :: nil) + else + match Int.is_power2 n with + | Some l => (Oshift Slsr (mk_amount32 l), r1 :: nil) + | None => (Odivu, r1 :: r2 :: nil) + end. + +Definition make_addlimm (n: int64) (r: reg) := + if Int64.eq n Int64.zero + then (Omove, r :: nil) + else (Oaddlimm n, r :: nil). + +Definition make_shllimm (n: int) (r1 r2: reg) := + if Int.eq n Int.zero then (Omove, r1 :: nil) + else if Int.ltu n Int64.iwordsize' then (Oshiftl Slsl (mk_amount64 n), r1 :: nil) + else (Oshll, r1 :: r2 :: nil). + +Definition make_shrlimm (n: int) (r1 r2: reg) := + if Int.eq n Int.zero then (Omove, r1 :: nil) + else if Int.ltu n Int64.iwordsize' then (Oshiftl Sasr (mk_amount64 n), r1 :: nil) + else (Oshrl, r1 :: r2 :: nil). + +Definition make_shrluimm (n: int) (r1 r2: reg) := + if Int.eq n Int.zero then (Omove, r1 :: nil) + else if Int.ltu n Int64.iwordsize' then (Oshiftl Slsr (mk_amount64 n), r1 :: nil) + else (Oshrlu, r1 :: r2 :: nil). + +Definition make_mullimm (n: int64) (r1 r2: reg) := + if Int64.eq n Int64.zero then + (Olongconst Int64.zero, nil) + else if Int64.eq n Int64.one then + (Omove, r1 :: nil) + else + match Int64.is_power2' n with + | Some l => (Oshiftl Slsl (mk_amount64 l), r1 :: nil) + | None => (Omull, r1 :: r2 :: nil) + end. + +Definition make_andlimm (n: int64) (r: reg) (a: aval) := + if Int64.eq n Int64.zero then (Olongconst Int64.zero, nil) + else if Int64.eq n Int64.mone then (Omove, r :: nil) + else (Oandlimm n, r :: nil). + +Definition make_orlimm (n: int64) (r: reg) := + if Int64.eq n Int64.zero then (Omove, r :: nil) + else if Int64.eq n Int64.mone then (Olongconst Int64.mone, nil) + else (Oorlimm n, r :: nil). + +Definition make_xorlimm (n: int64) (r: reg) := + if Int64.eq n Int64.zero then (Omove, r :: nil) + else (Oxorlimm n, r :: nil). + +Definition make_divlimm n (r1 r2: reg) := + match Int64.is_power2' n with + | Some l => if Int.ltu l (Int.repr 63) + then (Oshrlximm l, r1 :: nil) + else (Odivl, r1 :: r2 :: nil) + | None => (Odivl, r1 :: r2 :: nil) + end. + +Definition make_divluimm n (r1 r2: reg) := + match Int64.is_power2' n with + | Some l => (Oshiftl Slsr (mk_amount64 l), r1 :: nil) + | None => (Odivlu, r1 :: r2 :: nil) + end. + +Definition make_mulfimm (n: float) (r r1 r2: reg) := + if Float.eq_dec n (Float.of_int (Int.repr 2)) + then (Oaddf, r :: r :: nil) + else (Omulf, r1 :: r2 :: nil). + +Definition make_mulfsimm (n: float32) (r r1 r2: reg) := + if Float32.eq_dec n (Float32.of_int (Int.repr 2)) + then (Oaddfs, r :: r :: nil) + else (Omulfs, r1 :: r2 :: nil). + +Definition make_zext (s: Z) (r: reg) (a: aval) := + if vincl a (Uns Ptop s) then (Omove, r :: nil) else (Ozext s, r :: nil). + +Definition make_sext (s: Z) (r: reg) (a: aval) := + if vincl a (Sgn Ptop s) then (Omove, r :: nil) else (Osext s, r :: nil). + +Nondetfunction op_strength_reduction + (op: operation) (args: list reg) (vl: list aval) := + match op, args, vl with + | Oadd, r1 :: r2 :: nil, I n1 :: v2 :: nil => make_addimm n1 r2 + | Oadd, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_addimm n2 r1 + | Oaddshift s a, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_addimm (eval_static_shift s n2 a) r1 + | Osub, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_addimm (Int.neg n2) r1 + | Osubshift s a, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_addimm (Int.neg (eval_static_shift s n2 a)) r1 + | Omul, r1 :: r2 :: nil, I n1 :: v2 :: nil => make_mulimm n1 r2 r1 + | Omul, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_mulimm n2 r1 r2 + | Odiv, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_divimm n2 r1 r2 + | Odivu, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_divuimm n2 r1 r2 + | Oand, r1 :: r2 :: nil, I n1 :: v2 :: nil => make_andimm n1 r2 v2 + | Oand, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_andimm n2 r1 v1 + | Oandshift s a, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_andimm (eval_static_shift s n2 a) r1 v1 + | Oandimm n, r1 :: nil, v1 :: nil => make_andimm n r1 v1 + | Oor, r1 :: r2 :: nil, I n1 :: v2 :: nil => make_orimm n1 r2 + | Oor, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_orimm n2 r1 + | Oorshift s a, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_orimm (eval_static_shift s n2 a) r1 + | Oxor, r1 :: r2 :: nil, I n1 :: v2 :: nil => make_xorimm n1 r2 + | Oxor, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_xorimm n2 r1 + | Oxorshift s a, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_xorimm (eval_static_shift s n2 a) r1 + | Obic, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_andimm (Int.not n2) r1 v1 + | Obicshift s a, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_andimm (Int.not (eval_static_shift s n2 a)) r1 v1 + | Oorn, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_orimm (Int.not n2) r1 + | Oornshift s a, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_orimm (Int.not (eval_static_shift s n2 a)) r1 + | Oeqv, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_xorimm (Int.not n2) r1 + | Oeqvshift s a, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_xorimm (Int.not (eval_static_shift s n2 a)) r1 + | Oshl, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_shlimm n2 r1 r2 + | Oshr, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_shrimm n2 r1 r2 + | Oshru, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_shruimm n2 r1 r2 + | Ozext s, r1 :: nil, v1 :: nil => make_zext s r1 v1 + | Osext s, r1 :: nil, v1 :: nil => make_sext s r1 v1 + + | Oaddl, r1 :: r2 :: nil, L n1 :: v2 :: nil => make_addlimm n1 r2 + | Oaddl, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_addlimm n2 r1 + | Oaddlshift s a, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_addlimm (eval_static_shiftl s n2 a) r1 + | Oaddlext x a, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_addlimm (eval_static_extend x n2 a) r1 + | Osubl, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_addlimm (Int64.neg n2) r1 + | Osublshift s a, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_addlimm (Int64.neg (eval_static_shiftl s n2 a)) r1 + | Osublext x a, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_addlimm (Int64.neg (eval_static_extend x n2 a)) r1 + | Omull, r1 :: r2 :: nil, L n1 :: v2 :: nil => make_mullimm n1 r2 r1 + | Omull, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_mullimm n2 r1 r2 + | Odivl, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_divlimm n2 r1 r2 + | Odivlu, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_divluimm n2 r1 r2 + | Oandl, r1 :: r2 :: nil, L n1 :: v2 :: nil => make_andlimm n1 r2 v2 + | Oandl, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_andlimm n2 r1 v1 + | Oandlshift s a, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_andlimm (eval_static_shiftl s n2 a) r1 v1 + | Oandlimm n, r1 :: nil, v1 :: nil => make_andlimm n r1 v1 + | Oorl, r1 :: r2 :: nil, L n1 :: v2 :: nil => make_orlimm n1 r2 + | Oorl, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_orlimm n2 r1 + | Oorlshift s a, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_orlimm (eval_static_shiftl s n2 a) r1 + | Oxorl, r1 :: r2 :: nil, L n1 :: v2 :: nil => make_xorlimm n1 r2 + | Oxorl, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_xorlimm n2 r1 + | Oxorlshift s a, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_xorlimm (eval_static_shiftl s n2 a) r1 + | Obicl, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_andlimm (Int64.not n2) r1 v1 + | Obiclshift s a, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_andlimm (Int64.not (eval_static_shiftl s n2 a)) r1 v1 + | Oornl, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_orlimm (Int64.not n2) r1 + | Oornlshift s a, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_orlimm (Int64.not (eval_static_shiftl s n2 a)) r1 + | Oeqvl, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_xorlimm (Int64.not n2) r1 + | Oeqvlshift s a, r1 :: r2 :: nil, v1 :: L n2 :: nil => make_xorlimm (Int64.not (eval_static_shiftl s n2 a)) r1 + | Oshll, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_shllimm n2 r1 r2 + | Oshrl, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_shrlimm n2 r1 r2 + | Oshrlu, r1 :: r2 :: nil, v1 :: I n2 :: nil => make_shrluimm n2 r1 r2 + | Ocmp c, args, vl => make_cmp c args vl + | Osel c ty, r1 :: r2 :: args, v1 :: v2 :: vl => make_select c ty r1 r2 args vl + | Omulf, r1 :: r2 :: nil, v1 :: F n2 :: nil => make_mulfimm n2 r1 r1 r2 + | Omulf, r1 :: r2 :: nil, F n1 :: v2 :: nil => make_mulfimm n1 r2 r1 r2 + | Omulfs, r1 :: r2 :: nil, v1 :: FS n2 :: nil => make_mulfsimm n2 r1 r1 r2 + | Omulfs, r1 :: r2 :: nil, FS n1 :: v2 :: nil => make_mulfsimm n1 r2 r1 r2 + | _, _, _ => (op, args) + end. + +Nondetfunction addr_strength_reduction + (addr: addressing) (args: list reg) (vl: list aval) := + match addr, args, vl with + | Aindexed n, r1 :: nil, Ptr(Gl symb n1) :: nil => + (Aglobal symb (Ptrofs.add n1 (Ptrofs.of_int64 n)), nil) + | Aindexed n, r1 :: nil, Ptr(Stk n1) :: nil => + (Ainstack (Ptrofs.add n1 (Ptrofs.of_int64 n)), nil) + | Aindexed2, r1 :: r2 :: nil, Ptr(Stk n1) :: L n2 :: nil => + (Ainstack (Ptrofs.add n1 (Ptrofs.of_int64 n2)), nil) + | Aindexed2, r1 :: r2 :: nil, L n1 :: Ptr(Stk n2) :: nil => + (Ainstack (Ptrofs.add (Ptrofs.of_int64 n1) n2), nil) + | Aindexed2, r1 :: r2 :: nil, L n1 :: v2 :: nil => + (Aindexed n1, r2 :: nil) + | Aindexed2, r1 :: r2 :: nil, v1 :: L n2 :: nil => + (Aindexed n2, r1 :: nil) + | Aindexed2shift a, r1 :: r2 :: nil, Ptr(Stk n1) :: L n2 :: nil => + (Ainstack (Ptrofs.add n1 (Ptrofs.of_int64 (Int64.shl' n2 a))), nil) + | Aindexed2shift a, r1 :: r2 :: nil, v1 :: L n2 :: nil => + (Aindexed (Int64.shl' n2 a), r1 :: nil) + | Aindexed2ext x a, r1 :: r2 :: nil, Ptr(Stk n1) :: I n2 :: nil => + (Ainstack (Ptrofs.add n1 (Ptrofs.of_int64 (eval_static_extend x n2 a))), nil) + | Aindexed2ext x a, r1 :: r2 :: nil, v1 :: I n2 :: nil => + (Aindexed (eval_static_extend x n2 a), r1 :: nil) + | _, _, _ => + (addr, args) + end. + -- cgit