diff options
Diffstat (limited to 'deps/lightning/lib/jit_s390.c')
| -rw-r--r-- | deps/lightning/lib/jit_s390.c | 1690 |
1 files changed, 1690 insertions, 0 deletions
diff --git a/deps/lightning/lib/jit_s390.c b/deps/lightning/lib/jit_s390.c new file mode 100644 index 0000000..7cd1d7f --- /dev/null +++ b/deps/lightning/lib/jit_s390.c @@ -0,0 +1,1690 @@ +/* + * Copyright (C) 2013-2019 Free Software Foundation, Inc. + * + * This file is part of GNU lightning. + * + * GNU lightning is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published + * by the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU lightning is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public + * License for more details. + * + * Authors: + * Paulo Cesar Pereira de Andrade + */ + +#include <lightning.h> +#include <lightning/jit_private.h> + +#if __WORDSIZE == 32 +# define NUM_FLOAT_REG_ARGS 2 +#else +# define NUM_FLOAT_REG_ARGS 4 +#endif +#define jit_arg_reg_p(i) ((i) >= 0 && (i) < 5) +#define jit_arg_f_reg_p(i) ((i) >= 0 && (i) < NUM_FLOAT_REG_ARGS) + +/* + * Types + */ +typedef struct jit_va_list { + /* The offsets are "1" based, as addresses are fixed in the + * standard stack frame format. */ + jit_word_t gpoff; + jit_word_t fpoff; + + /* Easier when there is an explicitly defined type... +(gdb) ptype ap +type = struct __va_list_tag { + long __gpr; + long __fpr; + void *__overflow_arg_area; + void *__reg_save_area; + + Note that gopff (__gpr) and fpoff (__fpr) are jit_word_t equivalent + and, again, "1" (unit) based, so must be adjusted at va_arg time. + */ + jit_pointer_t over; + jit_pointer_t save; + + /* For variadic functions, always allocate space to save callee + * save fpr registers. + * Note that s390 has a standard stack frame format that lightning + * does not fully comply with, but for variadic functions it must, + * for those (variadic) do not use the "empty" spaces for any + * callee save fpr register, but save them after the va_list + * space; and use the standard stack frame format, as required + * by variadic functions (and have a compatible va_list pointer). */ + jit_float64_t f8; + jit_float64_t f9; + jit_float64_t f10; + jit_float64_t f11; + jit_float64_t f12; + jit_float64_t f13; + jit_float64_t f14; + jit_float64_t f15; +} jit_va_list_t; + +/* + * Prototypes + */ +#define jit_get_reg_pair() _jit_get_reg_pair(_jit) +static jit_int32_t _jit_get_reg_pair(jit_state_t*); +#define jit_unget_reg_pair(regno) _jit_unget_reg_pair(_jit,regno) +static void _jit_unget_reg_pair(jit_state_t*,jit_int32_t); +#define jit_get_reg_but_zero(flags) _jit_get_reg_but_zero(_jit,flags) +static jit_int32_t _jit_get_reg_but_zero(jit_state_t*,jit_int32_t); +#define jit_unget_reg_but_zero(reg) jit_unget_reg(reg) +#define patch(instr, node) _patch(_jit, instr, node) +static void _patch(jit_state_t*,jit_word_t,jit_node_t*); + +/* libgcc */ +extern void __clear_cache(void *, void *); + +#define PROTO 1 +# include "jit_s390-cpu.c" +# include "jit_s390-fpu.c" +#undef PROTO + +/* + * Initialization + */ +jit_register_t _rvs[] = { + { rc(gpr) | 0x0, "%r0" }, + { rc(gpr) | 0x1, "%r1" }, + { rc(gpr) | rc(sav) | 0xc, "%r12" }, + { rc(gpr) | rc(sav) | 0xb, "%r11" }, + { rc(gpr) | rc(sav) | 0xa, "%r10" }, + { rc(gpr) | rc(sav) | 0x9, "%r9" }, + { rc(gpr) | rc(sav) | 0x8, "%r8" }, + { rc(gpr) | rc(sav) | 0x7, "%r7" }, + { rc(gpr) | rc(arg) | rc(sav) | 0x6,"%r6" }, + { rc(gpr) | rc(arg) | 0x5, "%r5" }, + { rc(gpr) | rc(arg) | 0x4, "%r4" }, + { rc(gpr) | rc(arg) | 0x3, "%r3" }, + { rc(gpr) | rc(arg) | 0x2, "%r2" }, + { rc(sav) | 0xd, "%r13" }, /* used as JIT_FP */ + { 0xe, "%r14" }, + { rc(sav) | 0xf, "%r15" }, + { rc(fpr) | 0x1, "%f1" }, + { rc(fpr) | 0x3, "%f3" }, + { rc(fpr) | 0x5, "%f5" }, + { rc(fpr) | 0x7, "%f7" }, + { rc(fpr) | rc(sav) | 0xe, "%f14" }, + /* Do not use as temporary to simplify stack layout */ + { 0xf, "%f15" }, + { rc(fpr) | rc(sav) | 0x8, "%f8" }, + { rc(fpr) | rc(sav) | 0x9, "%f9" }, + { rc(fpr) | rc(sav) | 0xa, "%f10" }, + { rc(fpr) | rc(sav) | 0xb, "%f11" }, + { rc(fpr) | rc(sav) | 0xc, "%f12" }, + { rc(fpr) | rc(sav) | 0xd, "%f13" }, + { rc(fpr) | rc(arg) | 0x6, "%f6" }, + { rc(fpr) | rc(arg) | 0x4, "%f4" }, + { rc(fpr) | rc(arg) | 0x2, "%f2" }, + { rc(fpr) | rc(arg) | 0x0, "%f0" }, + { _NOREG, "<none>" }, +}; + +/* + * Implementation + */ +void +jit_get_cpu(void) +{ +} + +void +_jit_init(jit_state_t *_jit) +{ + _jitc->reglen = jit_size(_rvs) - 1; +} + +void +_jit_prolog(jit_state_t *_jit) +{ + jit_int32_t offset; + + if (_jitc->function) + jit_epilog(); + assert(jit_regset_cmp_ui(&_jitc->regarg, 0) == 0); + jit_regset_set_ui(&_jitc->regsav, 0); + offset = _jitc->functions.offset; + if (offset >= _jitc->functions.length) { + jit_realloc((jit_pointer_t *)&_jitc->functions.ptr, + _jitc->functions.length * sizeof(jit_function_t), + (_jitc->functions.length + 16) * sizeof(jit_function_t)); + _jitc->functions.length += 16; + } + _jitc->function = _jitc->functions.ptr + _jitc->functions.offset++; + _jitc->function->self.size = stack_framesize; + _jitc->function->self.argi = _jitc->function->self.argf = + _jitc->function->self.aoff = _jitc->function->self.alen = 0; + /* preallocate 8 bytes if not using a constant data buffer */ + if (_jitc->no_data) + _jitc->function->self.aoff = -8; + _jitc->function->self.call = jit_call_default; + jit_alloc((jit_pointer_t *)&_jitc->function->regoff, + _jitc->reglen * sizeof(jit_int32_t)); + + /* _no_link here does not mean the jit_link() call can be removed + * by rewriting as: + * _jitc->function->prolog = jit_new_node(jit_code_prolog); + */ + _jitc->function->prolog = jit_new_node_no_link(jit_code_prolog); + jit_link(_jitc->function->prolog); + _jitc->function->prolog->w.w = offset; + _jitc->function->epilog = jit_new_node_no_link(jit_code_epilog); + /* u: label value + * v: offset in blocks vector + * w: offset in functions vector + */ + _jitc->function->epilog->w.w = offset; + + jit_regset_new(&_jitc->function->regset); +} + +jit_int32_t +_jit_allocai(jit_state_t *_jit, jit_int32_t length) +{ + assert(_jitc->function); + switch (length) { + case 0: case 1: break; + case 2: _jitc->function->self.aoff &= -2; break; + case 3: case 4: _jitc->function->self.aoff &= -4; break; + default: _jitc->function->self.aoff &= -8; break; + } + _jitc->function->self.aoff -= length; + if (!_jitc->realize) { + jit_inc_synth_ww(allocai, _jitc->function->self.aoff, length); + jit_dec_synth(); + } + return (_jitc->function->self.aoff); +} + +void +_jit_allocar(jit_state_t *_jit, jit_int32_t u, jit_int32_t v) +{ + jit_int32_t reg; + assert(_jitc->function); + jit_inc_synth_ww(allocar, u, v); + if (!_jitc->function->allocar) { + _jitc->function->aoffoff = jit_allocai(sizeof(jit_int32_t)); + _jitc->function->allocar = 1; + } + reg = jit_get_reg(jit_class_gpr); + jit_negr(reg, v); + jit_andi(reg, reg, -8); + jit_ldxi_i(u, JIT_FP, _jitc->function->aoffoff); + jit_addr(u, u, reg); + jit_addr(JIT_SP, JIT_SP, reg); + jit_stxi_i(_jitc->function->aoffoff, JIT_FP, u); + jit_unget_reg(reg); + jit_dec_synth(); +} + +void +_jit_ret(jit_state_t *_jit) +{ + jit_node_t *instr; + assert(_jitc->function); + jit_inc_synth(ret); + /* jump to epilog */ + instr = jit_jmpi(); + jit_patch_at(instr, _jitc->function->epilog); + jit_dec_synth(); +} + +void +_jit_retr(jit_state_t *_jit, jit_int32_t u) +{ + jit_inc_synth_w(retr, u); + jit_movr(JIT_RET, u); + jit_ret(); + jit_dec_synth(); +} + +void +_jit_reti(jit_state_t *_jit, jit_word_t u) +{ + jit_inc_synth_w(reti, u); + jit_movi(JIT_RET, u); + jit_ret(); + jit_dec_synth(); +} + +void +_jit_retr_f(jit_state_t *_jit, jit_int32_t u) +{ + jit_inc_synth_w(retr_f, u); + jit_movr_f(JIT_FRET, u); + jit_ret(); + jit_dec_synth(); +} + +void +_jit_reti_f(jit_state_t *_jit, jit_float32_t u) +{ + jit_inc_synth_f(reti_f, u); + jit_movi_f(JIT_FRET, u); + jit_ret(); + jit_dec_synth(); +} + +void +_jit_retr_d(jit_state_t *_jit, jit_int32_t u) +{ + jit_inc_synth_w(retr_d, u); + jit_movr_d(JIT_FRET, u); + jit_ret(); + jit_dec_synth(); +} + +void +_jit_reti_d(jit_state_t *_jit, jit_float64_t u) +{ + jit_inc_synth_d(reti_d, u); + jit_movi_d(JIT_FRET, u); + jit_ret(); + jit_dec_synth(); +} + +void +_jit_epilog(jit_state_t *_jit) +{ + assert(_jitc->function); + assert(_jitc->function->epilog->next == NULL); + jit_link(_jitc->function->epilog); + _jitc->function = NULL; +} + +jit_bool_t +_jit_arg_register_p(jit_state_t *_jit, jit_node_t *u) +{ + if (u->code == jit_code_arg) + return (jit_arg_reg_p(u->u.w)); + assert(u->code == jit_code_arg_f || u->code == jit_code_arg_d); + return (jit_arg_f_reg_p(u->u.w)); +} + +void +_jit_ellipsis(jit_state_t *_jit) +{ + jit_inc_synth(ellipsis); + if (_jitc->prepare) { + jit_link_prepare(); + assert(!(_jitc->function->call.call & jit_call_varargs)); + _jitc->function->call.call |= jit_call_varargs; + } + else { + jit_link_prolog(); + assert(!(_jitc->function->self.call & jit_call_varargs)); + _jitc->function->self.call |= jit_call_varargs; + + /* Allocate va_list like object in the stack. */ + _jitc->function->vaoff = jit_allocai(sizeof(jit_va_list_t)); + + /* Initialize gp offset in save area. */ + if (jit_arg_reg_p(_jitc->function->self.argi)) + _jitc->function->vagp = _jitc->function->self.argi; + else + _jitc->function->vagp = 5; + + /* Initialize fp offset in save area. */ + if (jit_arg_f_reg_p(_jitc->function->self.argf)) + _jitc->function->vafp = _jitc->function->self.argf; + else + _jitc->function->vafp = NUM_FLOAT_REG_ARGS; + } + jit_dec_synth(); +} + +void +_jit_va_push(jit_state_t *_jit, jit_int32_t u) +{ + jit_inc_synth_w(va_push, u); + jit_pushargr(u); + jit_dec_synth(); +} + +jit_node_t * +_jit_arg(jit_state_t *_jit) +{ + jit_node_t *node; + jit_int32_t offset; + assert(_jitc->function); + if (jit_arg_reg_p(_jitc->function->self.argi)) + offset = _jitc->function->self.argi++; + else { + offset = _jitc->function->self.size; + _jitc->function->self.size += sizeof(jit_word_t); + } + node = jit_new_node_ww(jit_code_arg, offset, + ++_jitc->function->self.argn); + jit_link_prolog(); + return (node); +} + +jit_node_t * +_jit_arg_f(jit_state_t *_jit) +{ + jit_node_t *node; + jit_int32_t offset; + assert(_jitc->function); + if (jit_arg_f_reg_p(_jitc->function->self.argf)) + offset = _jitc->function->self.argf++; + else { + offset = _jitc->function->self.size; + _jitc->function->self.size += sizeof(jit_word_t); + } + node = jit_new_node_ww(jit_code_arg_f, offset, + ++_jitc->function->self.argn); + jit_link_prolog(); + return (node); +} + +jit_node_t * +_jit_arg_d(jit_state_t *_jit) +{ + jit_node_t *node; + jit_int32_t offset; + assert(_jitc->function); + if (jit_arg_f_reg_p(_jitc->function->self.argf)) + offset = _jitc->function->self.argf++; + else { + offset = _jitc->function->self.size; + _jitc->function->self.size += sizeof(jit_float64_t); + } + node = jit_new_node_ww(jit_code_arg_d, offset, + ++_jitc->function->self.argn); + jit_link_prolog(); + return (node); +} + +void +_jit_getarg_c(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) +{ + assert(v->code == jit_code_arg); + jit_inc_synth_wp(getarg_c, u, v); + if (jit_arg_reg_p(v->u.w)) + jit_extr_c(u, _R2 - v->u.w); + else + jit_ldxi_c(u, JIT_FP, + v->u.w + (__WORDSIZE >> 3) - sizeof(jit_int8_t)); + jit_dec_synth(); +} + +void +_jit_getarg_uc(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) +{ + assert(v->code == jit_code_arg); + jit_inc_synth_wp(getarg_uc, u, v); + if (jit_arg_reg_p(v->u.w)) + jit_extr_uc(u, _R2 - v->u.w); + else + jit_ldxi_uc(u, JIT_FP, + v->u.w + (__WORDSIZE >> 3) - sizeof(jit_uint8_t)); + jit_dec_synth(); +} + +void +_jit_getarg_s(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) +{ + assert(v->code == jit_code_arg); + jit_inc_synth_wp(getarg_s, u, v); + if (jit_arg_reg_p(v->u.w)) + jit_extr_s(u, _R2 - v->u.w); + else + jit_ldxi_s(u, JIT_FP, + v->u.w + (__WORDSIZE >> 3) - sizeof(jit_int16_t)); + jit_dec_synth(); +} + +void +_jit_getarg_us(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) +{ + assert(v->code == jit_code_arg); + jit_inc_synth_wp(getarg_us, u, v); + if (jit_arg_reg_p(v->u.w)) + jit_extr_us(u, _R2 - v->u.w); + else + jit_ldxi_us(u, JIT_FP, + v->u.w + (__WORDSIZE >> 3) - sizeof(jit_uint16_t)); + jit_dec_synth(); +} + +void +_jit_getarg_i(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) +{ + assert(v->code == jit_code_arg); + jit_inc_synth_wp(getarg_i, u, v); + if (jit_arg_reg_p(v->u.w)) { +#if __WORDSIZE == 32 + jit_movr(u, _R2 - v->u.w); +#else + jit_extr_i(u, _R2 - v->u.w); +#endif + } + else + jit_ldxi_i(u, JIT_FP, + v->u.w + (__WORDSIZE >> 3) - sizeof(jit_int32_t)); + jit_dec_synth(); +} + +#if __WORDSIZE == 64 +void +_jit_getarg_ui(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) +{ + assert(v->code == jit_code_arg); + jit_inc_synth_wp(getarg_ui, u, v); + if (jit_arg_reg_p(v->u.w)) + jit_extr_ui(u, _R2 - v->u.w); + else + jit_ldxi_ui(u, JIT_FP, + v->u.w + (__WORDSIZE >> 3) - sizeof(jit_uint32_t)); + jit_dec_synth(); +} + +void +_jit_getarg_l(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) +{ + assert(v->code == jit_code_arg); + jit_inc_synth_wp(getarg_l, u, v); + if (jit_arg_reg_p(v->u.w)) + jit_movr(u, _R2 - v->u.w); + else + jit_ldxi_l(u, JIT_FP, v->u.w); + jit_dec_synth(); +} +#endif + +void +_jit_putargr(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) +{ + assert(v->code == jit_code_arg); + jit_inc_synth_wp(putargr, u, v); + if (jit_arg_reg_p(v->u.w)) + jit_movr(_R2 - v->u.w, u); + else + jit_stxi(v->u.w, JIT_FP, u); + jit_dec_synth(); +} + +void +_jit_putargi(jit_state_t *_jit, jit_word_t u, jit_node_t *v) +{ + jit_int32_t regno; + assert(v->code == jit_code_arg); + jit_inc_synth_wp(putargi, u, v); + if (jit_arg_reg_p(v->u.w)) + jit_movi(_R2 - v->u.w, u); + else { + regno = jit_get_reg(jit_class_gpr); + jit_movi(regno, u); + jit_stxi(v->u.w, JIT_FP, regno); + jit_unget_reg(regno); + } + jit_dec_synth(); +} + +void +_jit_getarg_f(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) +{ + assert(v->code == jit_code_arg_f); + jit_inc_synth_wp(getarg_f, u, v); + if (jit_arg_f_reg_p(v->u.w)) + jit_movr_f(u, _F0 - v->u.w); + else + jit_ldxi_f(u, JIT_FP, + v->u.w +#if __WORDSIZE == 64 + + (__WORDSIZE >> 3) - sizeof(jit_float32_t) +#endif + ); + jit_dec_synth(); +} + +void +_jit_putargr_f(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) +{ + assert(v->code == jit_code_arg_f); + jit_inc_synth_wp(putargr_f, u, v); + if (jit_arg_f_reg_p(v->u.w)) + jit_movr_f(_F0 - v->u.w, u); + else + jit_stxi_f(v->u.w +#if __WORDSIZE == 64 + + (__WORDSIZE >> 3) - sizeof(jit_float32_t) +#endif + , JIT_FP, u); + jit_dec_synth(); +} + +void +_jit_putargi_f(jit_state_t *_jit, jit_float32_t u, jit_node_t *v) +{ + jit_int32_t regno; + assert(v->code == jit_code_arg_f); + jit_inc_synth_fp(putargi_f, u, v); + if (jit_arg_f_reg_p(v->u.w)) + jit_movi_f(_F0 - v->u.w, u); + else { + regno = jit_get_reg(jit_class_fpr); + jit_movi_f(regno, u); + jit_stxi_f(v->u.w +#if __WORDSIZE == 64 + + (__WORDSIZE >> 3) - sizeof(jit_float32_t) +#endif + , JIT_FP, regno); + jit_unget_reg(regno); + } + jit_dec_synth(); +} + +void +_jit_getarg_d(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) +{ + assert(v->code == jit_code_arg_d); + jit_inc_synth_wp(getarg_d, u, v); + if (jit_arg_f_reg_p(v->u.w)) + jit_movr_d(u, _F0 - v->u.w); + else + jit_ldxi_d(u, JIT_FP, v->u.w); + jit_dec_synth(); +} + +void +_jit_putargr_d(jit_state_t *_jit, jit_int32_t u, jit_node_t *v) +{ + assert(v->code == jit_code_arg_d); + jit_inc_synth_wp(putargr_d, u, v); + if (jit_arg_f_reg_p(v->u.w)) + jit_movr_d(_F0 - v->u.w, u); + else + jit_stxi_d(v->u.w, JIT_FP, u); + jit_dec_synth(); +} + +void +_jit_putargi_d(jit_state_t *_jit, jit_float64_t u, jit_node_t *v) +{ + jit_int32_t regno; + assert(v->code == jit_code_arg_d); + jit_inc_synth_dp(putargi_d, u, v); + if (jit_arg_f_reg_p(v->u.w)) + jit_movi_d(_F0 - v->u.w, u); + else { + regno = jit_get_reg(jit_class_fpr); + jit_movi_d(regno, u); + jit_stxi_d(v->u.w, JIT_FP, regno); + jit_unget_reg(regno); + } + jit_dec_synth(); +} + +void +_jit_pushargr(jit_state_t *_jit, jit_int32_t u) +{ + assert(_jitc->function); + jit_inc_synth_w(pushargr, u); + jit_link_prepare(); + if (jit_arg_reg_p(_jitc->function->call.argi)) { + jit_movr(_R2 - _jitc->function->call.argi, u); + ++_jitc->function->call.argi; + } + else { + jit_stxi(_jitc->function->call.size + stack_framesize, JIT_SP, u); + _jitc->function->call.size += sizeof(jit_word_t); + } + jit_dec_synth(); +} + +void +_jit_pushargi(jit_state_t *_jit, jit_word_t u) +{ + jit_int32_t regno; + assert(_jitc->function); + jit_inc_synth_w(pushargi, u); + jit_link_prepare(); + if (jit_arg_reg_p(_jitc->function->call.argi)) { + jit_movi(_R2 - _jitc->function->call.argi, u); + ++_jitc->function->call.argi; + } + else { + regno = jit_get_reg(jit_class_gpr); + jit_movi(regno, u); + jit_stxi(_jitc->function->call.size + stack_framesize, JIT_SP, regno); + jit_unget_reg(regno); + _jitc->function->call.size += sizeof(jit_word_t); + } + jit_dec_synth(); +} + +void +_jit_pushargr_f(jit_state_t *_jit, jit_int32_t u) +{ + assert(_jitc->function); + jit_inc_synth_w(pushargr_f, u); + jit_link_prepare(); + if (jit_arg_f_reg_p(_jitc->function->call.argf)) { + jit_movr_f(_F0 - _jitc->function->call.argf, u); + ++_jitc->function->call.argf; + } + else { + jit_stxi_f(_jitc->function->call.size + stack_framesize +#if __WORDSIZE == 64 + + (__WORDSIZE >> 3) - sizeof(jit_float32_t) +#endif + , JIT_SP, u); + _jitc->function->call.size += sizeof(jit_word_t); + } + jit_dec_synth(); +} + +void +_jit_pushargi_f(jit_state_t *_jit, jit_float32_t u) +{ + jit_int32_t regno; + assert(_jitc->function); + jit_inc_synth_f(pushargi_f, u); + jit_link_prepare(); + if (jit_arg_f_reg_p(_jitc->function->call.argf)) { + jit_movi_f(_F0 - _jitc->function->call.argf, u); + ++_jitc->function->call.argf; + } + else { + regno = jit_get_reg(jit_class_fpr); + jit_movi_f(regno, u); + jit_stxi_f(_jitc->function->call.size + stack_framesize +#if __WORDSIZE == 64 + + (__WORDSIZE >> 3) - sizeof(jit_float32_t) +#endif + , JIT_SP, regno); + jit_unget_reg(regno); + _jitc->function->call.size += sizeof(jit_word_t); + } + jit_dec_synth(); +} + +void +_jit_pushargr_d(jit_state_t *_jit, jit_int32_t u) +{ + assert(_jitc->function); + jit_inc_synth_w(pushargr_d, u); + jit_link_prepare(); + if (jit_arg_f_reg_p(_jitc->function->call.argf)) { + jit_movr_d(_F0 - _jitc->function->call.argf, u); + ++_jitc->function->call.argf; + } + else { + jit_stxi_d(_jitc->function->call.size + stack_framesize, JIT_SP, u); + _jitc->function->call.size += sizeof(jit_float64_t); + } + jit_dec_synth(); +} + +void +_jit_pushargi_d(jit_state_t *_jit, jit_float64_t u) +{ + jit_int32_t regno; + assert(_jitc->function); + jit_inc_synth_d(pushargi_d, u); + jit_link_prepare(); + if (jit_arg_f_reg_p(_jitc->function->call.argf)) { + jit_movi_d(_F0 - _jitc->function->call.argf, u); + ++_jitc->function->call.argf; + } + else { + regno = jit_get_reg(jit_class_fpr); + jit_movi_d(regno, u); + jit_stxi_d(_jitc->function->call.size + stack_framesize, JIT_SP, regno); + jit_unget_reg(regno); + _jitc->function->call.size += sizeof(jit_float64_t); + } + jit_dec_synth(); +} + +jit_bool_t +_jit_regarg_p(jit_state_t *_jit, jit_node_t *node, jit_int32_t regno) +{ + jit_int32_t spec; + spec = jit_class(_rvs[regno].spec); + if (spec & jit_class_arg) { + regno = _R2 - regno; + if (regno >= 0 && regno < node->v.w) + return (1); + if (spec & jit_class_fpr) { + regno = _F0 - regno; + if (regno >= 0 && regno < node->w.w) + return (1); + } + } + return (0); +} + +void +_jit_finishr(jit_state_t *_jit, jit_int32_t r0) +{ + jit_node_t *call; + assert(_jitc->function); + jit_inc_synth_w(finishr, r0); + if (_jitc->function->self.alen < _jitc->function->call.size) + _jitc->function->self.alen = _jitc->function->call.size; + call = jit_callr(r0); + call->v.w = _jitc->function->call.argi; + call->w.w = _jitc->function->call.argf; + _jitc->function->call.argi = _jitc->function->call.argf = + _jitc->function->call.size = 0; + _jitc->prepare = 0; + jit_dec_synth(); +} + +jit_node_t * +_jit_finishi(jit_state_t *_jit, jit_pointer_t i0) +{ + jit_node_t *node; + assert(_jitc->function); + jit_inc_synth_w(finishi, (jit_word_t)i0); + if (_jitc->function->self.alen < _jitc->function->call.size) + _jitc->function->self.alen = _jitc->function->call.size; + node = jit_calli(i0); + node->v.w = _jitc->function->call.argi; + node->w.w = _jitc->function->call.argf; + _jitc->function->call.argi = _jitc->function->call.argf = + _jitc->function->call.size = 0; + _jitc->prepare = 0; + jit_dec_synth(); + return (node); +} + +void +_jit_retval_c(jit_state_t *_jit, jit_int32_t r0) +{ + jit_inc_synth_w(retval_c, r0); + jit_extr_c(r0, JIT_RET); + jit_dec_synth(); +} + +void +_jit_retval_uc(jit_state_t *_jit, jit_int32_t r0) +{ + jit_inc_synth_w(retval_uc, r0); + jit_extr_uc(r0, JIT_RET); + jit_dec_synth(); +} + +void +_jit_retval_s(jit_state_t *_jit, jit_int32_t r0) +{ + jit_inc_synth_w(retval_s, r0); + jit_extr_s(r0, JIT_RET); + jit_dec_synth(); +} + +void +_jit_retval_us(jit_state_t *_jit, jit_int32_t r0) +{ + jit_inc_synth_w(retval_us, r0); + jit_extr_us(r0, JIT_RET); + jit_dec_synth(); +} + +void +_jit_retval_i(jit_state_t *_jit, jit_int32_t r0) +{ + jit_inc_synth_w(retval_i, r0); +#if __WORDSIZE == 64 + jit_extr_i(r0, JIT_RET); +#else + jit_movr(r0, JIT_RET); +#endif + jit_dec_synth(); +} + +#if __WORDSIZE == 64 +void +_jit_retval_ui(jit_state_t *_jit, jit_int32_t r0) +{ + jit_inc_synth_w(retval_ui, r0); + jit_extr_ui(r0, JIT_RET); + jit_dec_synth(); +} + +void +_jit_retval_l(jit_state_t *_jit, jit_int32_t r0) +{ + jit_inc_synth_w(retval_l, r0); + jit_movr(r0, JIT_RET); + jit_dec_synth(); +} +#endif + +void +_jit_retval_f(jit_state_t *_jit, jit_int32_t r0) +{ + jit_inc_synth_w(retval_f, r0); + jit_movr_f(r0, JIT_FRET); + jit_dec_synth(); +} + +void +_jit_retval_d(jit_state_t *_jit, jit_int32_t r0) +{ + jit_inc_synth_w(retval_d, r0); + jit_movr_d(r0, JIT_FRET); + jit_dec_synth(); +} + +jit_pointer_t +_emit_code(jit_state_t *_jit) +{ + jit_node_t *node; + jit_node_t *temp; + jit_word_t word; + jit_int32_t value; + jit_int32_t offset; + struct { + jit_node_t *node; + jit_word_t word; +#if DEVEL_DISASSEMBLER + jit_word_t prevw; +#endif + jit_int32_t patch_offset; + } undo; +#if DEVEL_DISASSEMBLER + jit_word_t prevw; +#endif + + _jitc->function = NULL; + + jit_reglive_setup(); + + undo.word = 0; + undo.node = NULL; + undo.patch_offset = 0; + +#define assert_data(node) /**/ +#define case_rr(name, type) \ + case jit_code_##name##r##type: \ + name##r##type(rn(node->u.w), rn(node->v.w)); \ + break +#define case_rw(name, type) \ + case jit_code_##name##i##type: \ + name##i##type(rn(node->u.w), node->v.w); \ + break +#define case_wr(name, type) \ + case jit_code_##name##i##type: \ + name##i##type(node->u.w, rn(node->v.w)); \ + break +#define case_rrr(name, type) \ + case jit_code_##name##r##type: \ + name##r##type(rn(node->u.w), \ + rn(node->v.w), rn(node->w.w)); \ + break +#define case_rrrr(name, type) \ + case jit_code_##name##r##type: \ + name##r##type(rn(node->u.q.l), rn(node->u.q.h), \ + rn(node->v.w), rn(node->w.w)); \ + break +#define case_rrw(name, type) \ + case jit_code_##name##i##type: \ + name##i##type(rn(node->u.w), rn(node->v.w), node->w.w); \ + break +#define case_rrrw(name, type) \ + case jit_code_##name##i##type: \ + name##i##type(rn(node->u.q.l), rn(node->u.q.h), \ + rn(node->v.w), node->w.w); \ + break +#define case_rrf(name) \ + case jit_code_##name##i_f: \ + assert_data(node); \ + name##i_f(rn(node->u.w), rn(node->v.w), \ + (jit_float32_t *)node->w.n->u.w); \ + break +#define case_rrd(name) \ + case jit_code_##name##i_d: \ + assert_data(node); \ + name##i_d(rn(node->u.w), rn(node->v.w), \ + (jit_float64_t *)node->w.n->u.w); \ + break +#define case_wrr(name, type) \ + case jit_code_##name##i##type: \ + name##i##type(node->u.w, rn(node->v.w), rn(node->w.w)); \ + break +#define case_brr(name, type) \ + case jit_code_##name##r##type: \ + temp = node->u.n; \ + assert(temp->code == jit_code_label || \ + temp->code == jit_code_epilog); \ + if (temp->flag & jit_flag_patch) \ + name##r##type(temp->u.w, rn(node->v.w), \ + rn(node->w.w)); \ + else { \ + word = name##r##type##_p(_jit->pc.w, \ + rn(node->v.w), \ + rn(node->w.w)); \ + patch(word, node); \ + } \ + break +#define case_brw(name, type) \ + case jit_code_##name##i##type: \ + temp = node->u.n; \ + assert(temp->code == jit_code_label || \ + temp->code == jit_code_epilog); \ + if (temp->flag & jit_flag_patch) \ + name##i##type(temp->u.w, \ + rn(node->v.w), node->w.w); \ + else { \ + word = name##i##type##_p(_jit->pc.w, \ + rn(node->v.w), node->w.w); \ + patch(word, node); \ + } \ + break; +#define case_brf(name) \ + case jit_code_##name##i_f: \ + temp = node->u.n; \ + assert(temp->code == jit_code_label || \ + temp->code == jit_code_epilog); \ + if (temp->flag & jit_flag_patch) \ + name##i_f(temp->u.w, rn(node->v.w), \ + (jit_float32_t *)node->w.n->u.w); \ + else { \ + word = name##i_f_p(_jit->pc.w, rn(node->v.w), \ + (jit_float32_t *)node->w.n->u.w);\ + patch(word, node); \ + } \ + break +#define case_brd(name) \ + case jit_code_##name##i_d: \ + temp = node->u.n; \ + assert(temp->code == jit_code_label || \ + temp->code == jit_code_epilog); \ + if (temp->flag & jit_flag_patch) \ + name##i_d(temp->u.w, rn(node->v.w), \ + (jit_float64_t *)node->w.n->u.w); \ + else { \ + word = name##i_d_p(_jit->pc.w, rn(node->v.w), \ + (jit_float64_t *)node->w.n->u.w);\ + patch(word, node); \ + } \ + break +#if DEVEL_DISASSEMBLER + prevw = _jit->pc.w; +#endif + for (node = _jitc->head; node; node = node->next) { + if (_jit->pc.uc >= _jitc->code.end) + return (NULL); + +#if DEVEL_DISASSEMBLER + node->offset = (jit_uword_t)_jit->pc.w - (jit_uword_t)prevw; + prevw = _jit->pc.w; +#endif + value = jit_classify(node->code); + jit_regarg_set(node, value); + switch (node->code) { + case jit_code_align: + assert(!(node->u.w & (node->u.w - 1)) && + node->u.w <= sizeof(jit_word_t)); + if (node->u.w == sizeof(jit_word_t) && + (word = _jit->pc.w & (sizeof(jit_word_t) - 1))) + nop(sizeof(jit_word_t) - word); + break; + case jit_code_note: case jit_code_name: + node->u.w = _jit->pc.w; + break; + case jit_code_label: + if ((node->link || (node->flag & jit_flag_use)) && + (word = _jit->pc.w & 3)) + nop(4 - word); + /* remember label is defined */ + node->flag |= jit_flag_patch; + node->u.w = _jit->pc.w; + break; + case_rrr(add,); + case_rrw(add,); + case_rrr(addc,); + case_rrw(addc,); + case_rrr(addx,); + case_rrw(addx,); + case_rrr(sub,); + case_rrw(sub,); + case_rrr(subc,); + case_rrw(subc,); + case_rrr(subx,); + case_rrw(subx,); + case_rrw(rsb,); + case_rrr(mul,); + case_rrw(mul,); + case_rrrr(qmul,); + case_rrrw(qmul,); + case_rrrr(qmul, _u); + case_rrrw(qmul, _u); + case_rrr(div,); + case_rrw(div,); + case_rrr(div, _u); + case_rrw(div, _u); + case_rrr(rem,); + case_rrw(rem,); + case_rrr(rem, _u); + case_rrw(rem, _u); + case_rrrr(qdiv,); + case_rrrw(qdiv,); + case_rrrr(qdiv, _u); + case_rrrw(qdiv, _u); + case_rrr(lsh,); + case_rrw(lsh,); + case_rrr(rsh,); + case_rrw(rsh,); + case_rrr(rsh, _u); + case_rrw(rsh, _u); + case_rr(neg,); + case_rr(com,); + case_rrr(and,); + case_rrw(and,); + case_rrr(or,); + case_rrw(or,); + case_rrr(xor,); + case_rrw(xor,); + case_rr(trunc, _f_i); + case_rr(trunc, _d_i); +#if __WORDSIZE == 64 + case_rr(trunc, _f_l); + case_rr(trunc, _d_l); +#endif + case_rr(ld, _c); + case_rw(ld, _c); + case_rr(ld, _uc); + case_rw(ld, _uc); + case_rr(ld, _s); + case_rw(ld, _s); + case_rr(ld, _us); + case_rw(ld, _us); + case_rr(ld, _i); + case_rw(ld, _i); +#if __WORDSIZE == 64 + case_rr(ld, _ui); + case_rw(ld, _ui); + case_rr(ld, _l); + case_rw(ld, _l); +#endif + case_rrr(ldx, _c); + case_rrw(ldx, _c); + case_rrr(ldx, _uc); + case_rrw(ldx, _uc); + case_rrr(ldx, _s); + case_rrw(ldx, _s); + case_rrr(ldx, _us); + case_rrw(ldx, _us); + case_rrr(ldx, _i); + case_rrw(ldx, _i); +#if __WORDSIZE == 64 + case_rrr(ldx, _ui); + case_rrw(ldx, _ui); + case_rrr(ldx, _l); + case_rrw(ldx, _l); +#endif + case_rr(st, _c); + case_wr(st, _c); + case_rr(st, _s); + case_wr(st, _s); + case_rr(st, _i); + case_wr(st, _i); +#if __WORDSIZE == 64 + case_rr(st, _l); + case_wr(st, _l); +#endif + case_rrr(stx, _c); + case_wrr(stx, _c); + case_rrr(stx, _s); + case_wrr(stx, _s); + case_rrr(stx, _i); + case_wrr(stx, _i); +#if __WORDSIZE == 64 + case_rrr(stx, _l); + case_wrr(stx, _l); +#endif + case_rr(hton, _us); + case_rr(hton, _ui); +#if __WORDSIZE == 64 + case_rr(hton, _ul); +#endif + case_rr(ext, _c); + case_rr(ext, _uc); + case_rr(ext, _s); + case_rr(ext, _us); +#if __WORDSIZE == 64 + case_rr(ext, _i); + case_rr(ext, _ui); +#endif + case_rr(mov,); + case jit_code_movi: + if (node->flag & jit_flag_node) { + temp = node->v.n; + if (temp->code == jit_code_data || + (temp->code == jit_code_label && + (temp->flag & jit_flag_patch))) + movi(rn(node->u.w), temp->u.w); + else { + assert(temp->code == jit_code_label || + temp->code == jit_code_epilog); + word = movi_p(rn(node->u.w), temp->u.w); + patch(word, node); + } + } + else + movi(rn(node->u.w), node->v.w); + break; + case_rrr(lt,); + case_rrw(lt,); + case_rrr(lt, _u); + case_rrw(lt, _u); + case_rrr(le,); + case_rrw(le,); + case_rrr(le, _u); + case_rrw(le, _u); + case_rrr(eq,); + case_rrw(eq,); + case_rrr(ge,); + case_rrw(ge,); + case_rrr(ge, _u); + case_rrw(ge, _u); + case_rrr(gt,); + case_rrw(gt,); + case_rrr(gt, _u); + case_rrw(gt, _u); + case_rrr(ne,); + case_rrw(ne,); + case_brr(blt,); + case_brw(blt,); + case_brr(blt, _u); + case_brw(blt, _u); + case_brr(ble,); + case_brw(ble,); + case_brr(ble, _u); + case_brw(ble, _u); + case_brr(beq,); + case_brw(beq,); + case_brr(bge,); + case_brw(bge,); + case_brr(bge, _u); + case_brw(bge, _u); + case_brr(bgt,); + case_brw(bgt,); + case_brr(bgt, _u); + case_brw(bgt, _u); + case_brr(bne,); + case_brw(bne,); + case_brr(boadd,); + case_brw(boadd,); + case_brr(boadd, _u); + case_brw(boadd, _u); + case_brr(bxadd,); + case_brw(bxadd,); + case_brr(bxadd, _u); + case_brw(bxadd, _u); + case_brr(bosub,); + case_brw(bosub,); + case_brr(bosub, _u); + case_brw(bosub, _u); + case_brr(bxsub,); + case_brw(bxsub,); + case_brr(bxsub, _u); + case_brw(bxsub, _u); + case_brr(bms,); + case_brw(bms,); + case_brr(bmc,); + case_brw(bmc,); + case_rrr(add, _f); + case_rrf(add); + case_rrr(sub, _f); + case_rrf(sub); + case_rrf(rsb); + case_rrr(mul, _f); + case_rrf(mul); + case_rrr(div, _f); + case_rrf(div); + case_rr(abs, _f); + case_rr(neg, _f); + case_rr(sqrt, _f); + case_rr(ext, _f); + case_rr(ld, _f); + case_rw(ld, _f); + case_rrr(ldx, _f); + case_rrw(ldx, _f); + case_rr(st, _f); + case_wr(st, _f); + case_rrr(stx, _f); + case_wrr(stx, _f); + case_rr(mov, _f); + case jit_code_movi_f: + assert_data(node); + movi_f(rn(node->u.w), (jit_float32_t *)node->v.n->u.w); + break; + case_rr(ext, _d_f); + case_rrr(lt, _f); + case_rrf(lt); + case_rrr(le, _f); + case_rrf(le); + case_rrr(eq, _f); + case_rrf(eq); + case_rrr(ge, _f); + case_rrf(ge); + case_rrr(gt, _f); + case_rrf(gt); + case_rrr(ne, _f); + case_rrf(ne); + case_rrr(unlt, _f); + case_rrf(unlt); + case_rrr(unle, _f); + case_rrf(unle); + case_rrr(uneq, _f); + case_rrf(uneq); + case_rrr(unge, _f); + case_rrf(unge); + case_rrr(ungt, _f); + case_rrf(ungt); + case_rrr(ltgt, _f); + case_rrf(ltgt); + case_rrr(ord, _f); + case_rrf(ord); + case_rrr(unord, _f); + case_rrf(unord); + case_brr(blt, _f); + case_brf(blt); + case_brr(ble, _f); + case_brf(ble); + case_brr(beq, _f); + case_brf(beq); + case_brr(bge, _f); + case_brf(bge); + case_brr(bgt, _f); + case_brf(bgt); + case_brr(bne, _f); + case_brf(bne); + case_brr(bunlt, _f); + case_brf(bunlt); + case_brr(bunle, _f); + case_brf(bunle); + case_brr(buneq, _f); + case_brf(buneq); + case_brr(bunge, _f); + case_brf(bunge); + case_brr(bungt, _f); + case_brf(bungt); + case_brr(bltgt, _f); + case_brf(bltgt); + case_brr(bord, _f); + case_brf(bord); + case_brr(bunord, _f); + case_brf(bunord); + case_rrr(add, _d); + case_rrd(add); + case_rrr(sub, _d); + case_rrd(sub); + case_rrd(rsb); + case_rrr(mul, _d); + case_rrd(mul); + case_rrr(div, _d); + case_rrd(div); + case_rr(abs, _d); + case_rr(neg, _d); + case_rr(sqrt, _d); + case_rr(ext, _d); + case_rr(ld, _d); + case_rw(ld, _d); + case_rrr(ldx, _d); + case_rrw(ldx, _d); + case_rr(st, _d); + case_wr(st, _d); + case_rrr(stx, _d); + case_wrr(stx, _d); + case_rr(mov, _d); + case jit_code_movi_d: + assert_data(node); + movi_d(rn(node->u.w), (jit_float64_t *)node->v.n->u.w); + break; + case_rr(ext, _f_d); + case_rrr(lt, _d); + case_rrd(lt); + case_rrr(le, _d); + case_rrd(le); + case_rrr(eq, _d); + case_rrd(eq); + case_rrr(ge, _d); + case_rrd(ge); + case_rrr(gt, _d); + case_rrd(gt); + case_rrr(ne, _d); + case_rrd(ne); + case_rrr(unlt, _d); + case_rrd(unlt); + case_rrr(unle, _d); + case_rrd(unle); + case_rrr(uneq, _d); + case_rrd(uneq); + case_rrr(unge, _d); + case_rrd(unge); + case_rrr(ungt, _d); + case_rrd(ungt); + case_rrr(ltgt, _d); + case_rrd(ltgt); + case_rrr(ord, _d); + case_rrd(ord); + case_rrr(unord, _d); + case_rrd(unord); + case_brr(blt, _d); + case_brd(blt); + case_brr(ble, _d); + case_brd(ble); + case_brr(beq, _d); + case_brd(beq); + case_brr(bge, _d); + case_brd(bge); + case_brr(bgt, _d); + case_brd(bgt); + case_brr(bne, _d); + case_brd(bne); + case_brr(bunlt, _d); + case_brd(bunlt); + case_brr(bunle, _d); + case_brd(bunle); + case_brr(buneq, _d); + case_brd(buneq); + case_brr(bunge, _d); + case_brd(bunge); + case_brr(bungt, _d); + case_brd(bungt); + case_brr(bltgt, _d); + case_brd(bltgt); + case_brr(bord, _d); + case_brd(bord); + case_brr(bunord, _d); + case_brd(bunord); + case jit_code_jmpr: + jmpr(rn(node->u.w)); + break; + case jit_code_jmpi: + if (node->flag & jit_flag_node) { + temp = node->u.n; + assert(temp->code == jit_code_label || + temp->code == jit_code_epilog); + if (temp->flag & jit_flag_patch) + jmpi(temp->u.w); + else { + word = jmpi_p(_jit->pc.w); + patch(word, node); + } + } + else + jmpi(node->u.w); + break; + case jit_code_callr: + callr(rn(node->u.w)); + break; + case jit_code_calli: + if (node->flag & jit_flag_node) { + temp = node->u.n; + assert(temp->code == jit_code_label || + temp->code == jit_code_epilog); + if (temp->flag & jit_flag_patch) + calli(temp->u.w); + else { + word = calli_p(_jit->pc.w); + patch(word, node); + } + } + else + calli(node->u.w); + break; + case jit_code_prolog: + _jitc->function = _jitc->functions.ptr + node->w.w; + undo.node = node; + undo.word = _jit->pc.w; +#if DEVEL_DISASSEMBLER + undo.prevw = prevw; +#endif + undo.patch_offset = _jitc->patches.offset; + restart_function: + _jitc->again = 0; + prolog(node); + break; + case jit_code_epilog: + assert(_jitc->function == _jitc->functions.ptr + node->w.w); + if (_jitc->again) { + for (temp = undo.node->next; + temp != node; temp = temp->next) { + if (temp->code == jit_code_label || + temp->code == jit_code_epilog) + temp->flag &= ~jit_flag_patch; + } + temp->flag &= ~jit_flag_patch; + node = undo.node; + _jit->pc.w = undo.word; +#if DEVEL_DISASSEMBLER + prevw = undo.prevw; +#endif + _jitc->patches.offset = undo.patch_offset; + goto restart_function; + } + if (node->link && (word = _jit->pc.w & 3)) + nop(4 - word); + /* remember label is defined */ + node->flag |= jit_flag_patch; + node->u.w = _jit->pc.w; + epilog(node); + _jitc->function = NULL; + break; + case jit_code_va_start: + vastart(rn(node->u.w)); + break; + case jit_code_va_arg: + vaarg(rn(node->u.w), rn(node->v.w)); + break; + case jit_code_va_arg_d: + vaarg_d(rn(node->u.w), rn(node->v.w)); + break; + case jit_code_live: case jit_code_ellipsis: + case jit_code_va_push: + case jit_code_allocai: case jit_code_allocar: + case jit_code_arg: + case jit_code_arg_f: case jit_code_arg_d: + case jit_code_va_end: + case jit_code_ret: + case jit_code_retr: case jit_code_reti: + case jit_code_retr_f: case jit_code_reti_f: + case jit_code_retr_d: case jit_code_reti_d: + case jit_code_getarg_c: case jit_code_getarg_uc: + case jit_code_getarg_s: case jit_code_getarg_us: + case jit_code_getarg_i: +#if __WORDSIZE == 64 + case jit_code_getarg_ui: case jit_code_getarg_l: +#endif + case jit_code_getarg_f: case jit_code_getarg_d: + case jit_code_putargr: case jit_code_putargi: + case jit_code_putargr_f: case jit_code_putargi_f: + case jit_code_putargr_d: case jit_code_putargi_d: + case jit_code_pushargr: case jit_code_pushargi: + case jit_code_pushargr_f: case jit_code_pushargi_f: + case jit_code_pushargr_d: case jit_code_pushargi_d: + case jit_code_retval_c: case jit_code_retval_uc: + case jit_code_retval_s: case jit_code_retval_us: + case jit_code_retval_i: +#if __WORDSIZE == 64 + case jit_code_retval_ui: case jit_code_retval_l: +#endif + case jit_code_retval_f: case jit_code_retval_d: + case jit_code_prepare: + case jit_code_finishr: case jit_code_finishi: + break; + default: + abort(); + } + jit_regarg_clr(node, value); + assert(_jitc->regarg == 0 && _jitc->synth == 0); + /* update register live state */ + jit_reglive(node); + } +#undef case_brw +#undef case_brr +#undef case_wrr +#undef case_rrw +#undef case_rrr +#undef case_wr +#undef case_rw +#undef case_rr + + for (offset = 0; offset < _jitc->patches.offset; offset++) { + node = _jitc->patches.ptr[offset].node; + word = node->code == jit_code_movi ? node->v.n->u.w : node->u.n->u.w; + patch_at(_jitc->patches.ptr[offset].inst, word); + } + + jit_flush(_jit->code.ptr, _jit->pc.uc); + + return (_jit->code.ptr); +} + +#define CODE 1 +# include "jit_s390-cpu.c" +# include "jit_s390-fpu.c" +#undef CODE + +void +jit_flush(void *fptr, void *tptr) +{ +#if defined(__GNUC__) + jit_word_t f, t, s; + + s = sysconf(_SC_PAGE_SIZE); + f = (jit_word_t)fptr & -s; + t = (((jit_word_t)tptr) + s - 1) & -s; + __clear_cache((void *)f, (void *)t); +#endif +} + +void +_emit_ldxi(jit_state_t *_jit, jit_gpr_t r0, jit_gpr_t r1, jit_word_t i0) +{ + ldxi(rn(r0), rn(r1), i0); +} + +void +_emit_stxi(jit_state_t *_jit, jit_word_t i0, jit_gpr_t r0, jit_gpr_t r1) +{ + stxi(i0, rn(r0), rn(r1)); +} + +void +_emit_ldxi_d(jit_state_t *_jit, jit_fpr_t r0, jit_gpr_t r1, jit_word_t i0) +{ + ldxi_d(rn(r0), rn(r1), i0); +} + +void +_emit_stxi_d(jit_state_t *_jit, jit_word_t i0, jit_gpr_t r0, jit_fpr_t r1) +{ + stxi_d(i0, rn(r0), rn(r1)); +} + +static jit_int32_t +_jit_get_reg_pair(jit_state_t *_jit) +{ + jit_int32_t r1, r2; + /* Try to find a register pair for use with operations that + * require a odd based register pair. Search for the best + * match to avoid spills or at least a valid operation. + */ + + /* Try non callee save first */ + if (jit_reg_free_p(_R0) && jit_reg_free_p(_R1)) + r1 = _R0, r2 = _R1; + else if (jit_reg_free_p(_R2) && jit_reg_free_p(_R3)) + r1 = _R2, r2 = _R3; + else if (jit_reg_free_p(_R4) && jit_reg_free_p(_R5)) + r1 = _R4, r2 = _R5; + /* Try callee save registers */ + else if (jit_reg_free_p(_R10) && jit_reg_free_p(_R11)) + r1 = _R10, r2 = _R11; + else if (jit_reg_free_p(_R8) && jit_reg_free_p(_R9)) + r1 = _R8, r2 = _R9; + else if (jit_reg_free_p(_R6) && jit_reg_free_p(_R7)) + r1 = _R6, r2 = _R7; + + /* We *must* find a register pair */ + else if (jit_reg_free_if_spill_p(_R0) && jit_reg_free_if_spill_p(_R1)) + r1 = _R0, r2 = _R1; + else if (jit_reg_free_if_spill_p(_R2) && jit_reg_free_if_spill_p(_R3)) + r1 = _R2, r2 = _R3; + else if (jit_reg_free_if_spill_p(_R4) && jit_reg_free_if_spill_p(_R5)) + r1 = _R4, r2 = _R5; + else if (jit_reg_free_if_spill_p(_R10) && jit_reg_free_if_spill_p(_R11)) + r1 = _R10, r2 = _R11; + else if (jit_reg_free_if_spill_p(_R8) && jit_reg_free_if_spill_p(_R9)) + r1 = _R8, r2 = _R9; + else if (jit_reg_free_if_spill_p(_R6) && jit_reg_free_if_spill_p(_R7)) + r1 = _R6, r2 = _R7; + else + /* Do not jit_get_reg() all registers to avoid it */ + abort(); + + (void)jit_get_reg(jit_class_gpr|jit_class_named|r1); + (void)jit_get_reg(jit_class_gpr|jit_class_named|r2); + + return (r1); +} + +static void +_jit_unget_reg_pair(jit_state_t *_jit, jit_int32_t reg) +{ + jit_int32_t r1, r2; + r1 = reg; + switch (r1) { + case _R0: r2 = _R1; break; + case _R2: r2 = _R3; break; + case _R4: r2 = _R5; break; + case _R6: r2 = _R7; break; + case _R8: r2 = _R9; break; + case _R10: r2 = _R11; break; + default: abort(); + } + jit_unget_reg(r1); + jit_unget_reg(r2); +} + +static jit_int32_t +_jit_get_reg_but_zero(jit_state_t *_jit, jit_int32_t flags) +{ + jit_int32_t reg; + reg = jit_get_reg(jit_class_gpr); + if (reg == _R0) { + reg = jit_get_reg(jit_class_gpr|flags); + jit_unget_reg(_R0); + } + return (reg); +} + +static void +_patch(jit_state_t *_jit, jit_word_t instr, jit_node_t *node) +{ + jit_int32_t flag; + + assert(node->flag & jit_flag_node); + if (node->code == jit_code_movi) + flag = node->v.n->flag; + else + flag = node->u.n->flag; + assert(!(flag & jit_flag_patch)); + if (_jitc->patches.offset >= _jitc->patches.length) { + jit_realloc((jit_pointer_t *)&_jitc->patches.ptr, + _jitc->patches.length * sizeof(jit_patch_t), + (_jitc->patches.length + 1024) * sizeof(jit_patch_t)); + _jitc->patches.length += 1024; + } + _jitc->patches.ptr[_jitc->patches.offset].inst = instr; + _jitc->patches.ptr[_jitc->patches.offset].node = node; + ++_jitc->patches.offset; +} |