/*
- * Copyright (C) 2019-2022 Free Software Foundation, Inc.
+ * Copyright (C) 2019-2023 Free Software Foundation, Inc.
*
* This file is part of GNU lightning.
*
* Paulo Cesar Pereira de Andrade
*/
+/* callee save + variadic arguments
+ * align16(ra+fp+s[1-9]+s10+s11+fs[0-9]+fs10+fs11)+align16(a[0-7]) */
+#define stack_framesize (208 + 64)
+
#define jit_arg_reg_p(i) ((i) >= 0 && (i) < 8)
#define jit_arg_f_reg_p(i) ((i) >= 0 && (i) < 8)
/*
* Prototypes
*/
+#define compute_framesize() _compute_framesize(_jit)
+static void _compute_framesize(jit_state_t*);
#if __WORDSIZE == 64
# define load_const(r0, i0) _load_const(_jit, r0, i0)
static void _load_const(jit_state_t*, jit_int32_t, jit_word_t);
#define PROTO 1
# include "jit_riscv-cpu.c"
# include "jit_riscv-fpu.c"
+# include "jit_fallback.c"
#undef PROTO
/*
{ _NOREG, "<none>" },
};
+static jit_int32_t iregs[] = {
+ _S1, _S2, _S3, _S4, _S5, _S6, _S7, _S8, _S9, _S10, _S11
+};
+
+static jit_int32_t fregs[] = {
+ _FS0, _FS1, _FS2, _FS3, _FS4, _FS5, _FS6, _FS7, _FS8, _FS9, _FS10, _FS11
+};
+
/*
* Implementation
*/
_jit_allocai(jit_state_t *_jit, jit_int32_t length)
{
assert(_jitc->function);
+ jit_check_frame();
switch (length) {
case 0: case 1: break;
case 2: _jitc->function->self.aoff &= -2; break;
}
void
-_jit_retr(jit_state_t *_jit, jit_int32_t u)
+_jit_retr(jit_state_t *_jit, jit_int32_t u, jit_code_t code)
{
- jit_inc_synth_w(retr, u);
- if (JIT_RET != u)
- jit_movr(JIT_RET, u);
- jit_live(JIT_RET);
+ jit_code_inc_synth_w(code, u);
+ jit_movr(JIT_RET, u);
jit_ret();
jit_dec_synth();
}
void
-_jit_reti(jit_state_t *_jit, jit_word_t u)
+_jit_reti(jit_state_t *_jit, jit_word_t u, jit_code_t code)
{
- jit_inc_synth_w(reti, u);
+ jit_code_inc_synth_w(code, u);
jit_movi(JIT_RET, u);
jit_ret();
jit_dec_synth();
jit_bool_t
_jit_arg_register_p(jit_state_t *_jit, jit_node_t *u)
{
- if (u->code == jit_code_arg)
+ if (u->code >= jit_code_arg_c && 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));
+ return (jit_arg_f_reg_p(u->u.w) || jit_arg_reg_p(u->u.w - 8));
}
void
_jit_ellipsis(jit_state_t *_jit)
{
jit_inc_synth(ellipsis);
+ jit_check_frame();
if (_jitc->prepare) {
jit_link_prepare();
assert(!(_jitc->function->call.call & jit_call_varargs));
}
jit_node_t *
-_jit_arg(jit_state_t *_jit)
+_jit_arg(jit_state_t *_jit, jit_code_t code)
{
jit_node_t *node;
jit_int32_t offset;
assert(_jitc->function);
assert(!(_jitc->function->self.call & jit_call_varargs));
+#if STRONG_TYPE_CHECKING
+ assert(code >= jit_code_arg_c && code <= jit_code_arg);
+#endif
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);
+ jit_check_frame();
}
- node = jit_new_node_ww(jit_code_arg, offset,
+ node = jit_new_node_ww(code, offset,
++_jitc->function->self.argn);
jit_link_prolog();
return (node);
else {
offset = _jitc->function->self.size;
_jitc->function->self.size += sizeof(jit_word_t);
+ jit_check_frame();
}
node = jit_new_node_ww(jit_code_arg_f, offset,
++_jitc->function->self.argn);
else {
offset = _jitc->function->self.size;
_jitc->function->self.size += sizeof(jit_word_t);
+ jit_check_frame();
}
node = jit_new_node_ww(jit_code_arg_d, offset,
++_jitc->function->self.argn);
void
_jit_getarg_c(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
{
- assert(v->code == jit_code_arg);
+ assert_arg_type(v->code, jit_code_arg_c);
jit_inc_synth_wp(getarg_c, u, v);
if (jit_arg_reg_p(v->u.w))
jit_extr_c(u, JIT_RA0 - v->u.w);
- else
- jit_ldxi_c(u, JIT_FP, v->u.w);
+ else {
+ jit_node_t *node = jit_ldxi_c(u, JIT_FP, v->u.w);
+ jit_link_alist(node);
+ }
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);
+ assert_arg_type(v->code, jit_code_arg_c);
jit_inc_synth_wp(getarg_uc, u, v);
if (jit_arg_reg_p(v->u.w))
jit_extr_uc(u, JIT_RA0 - v->u.w);
- else
- jit_ldxi_uc(u, JIT_FP, v->u.w);
+ else {
+ jit_node_t *node = jit_ldxi_uc(u, JIT_FP, v->u.w);
+ jit_link_alist(node);
+ }
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);
+ assert_arg_type(v->code, jit_code_arg_s);
jit_inc_synth_wp(getarg_s, u, v);
if (jit_arg_reg_p(v->u.w))
jit_extr_s(u, JIT_RA0 - v->u.w);
- else
- jit_ldxi_s(u, JIT_FP, v->u.w);
+ else {
+ jit_node_t *node = jit_ldxi_s(u, JIT_FP, v->u.w);
+ jit_link_alist(node);
+ }
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);
+ assert_arg_type(v->code, jit_code_arg_s);
jit_inc_synth_wp(getarg_us, u, v);
if (jit_arg_reg_p(v->u.w))
jit_extr_us(u, JIT_RA0 - v->u.w);
- else
- jit_ldxi_us(u, JIT_FP, v->u.w);
+ else {
+ jit_node_t *node = jit_ldxi_us(u, JIT_FP, v->u.w);
+ jit_link_alist(node);
+ }
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);
+ assert_arg_type(v->code, jit_code_arg_i);
jit_inc_synth_wp(getarg_i, u, v);
if (jit_arg_reg_p(v->u.w))
jit_extr_i(u, JIT_RA0 - v->u.w);
- else
- jit_ldxi_i(u, JIT_FP, v->u.w);
+ else {
+ jit_node_t *node = jit_ldxi_i(u, JIT_FP, v->u.w);
+ jit_link_alist(node);
+ }
jit_dec_synth();
}
void
_jit_getarg_ui(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
{
- assert(v->code == jit_code_arg);
+ assert_arg_type(v->code, jit_code_arg_i);
jit_inc_synth_wp(getarg_ui, u, v);
if (jit_arg_reg_p(v->u.w))
jit_extr_ui(u, JIT_RA0 - v->u.w);
- else
- jit_ldxi_ui(u, JIT_FP, v->u.w);
+ else {
+ jit_node_t *node = jit_ldxi_ui(u, JIT_FP, v->u.w);
+ jit_link_alist(node);
+ }
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);
+ assert_arg_type(v->code, jit_code_arg_l);
jit_inc_synth_wp(getarg_l, u, v);
if (jit_arg_reg_p(v->u.w))
jit_movr(u, JIT_RA0 - v->u.w);
- else
- jit_ldxi_l(u, JIT_FP, v->u.w);
+ else {
+ jit_node_t *node = jit_ldxi_l(u, JIT_FP, v->u.w);
+ jit_link_alist(node);
+ }
jit_dec_synth();
}
void
-_jit_putargr(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
+_jit_putargr(jit_state_t *_jit, jit_int32_t u, jit_node_t *v, jit_code_t code)
{
- assert(v->code == jit_code_arg);
- jit_inc_synth_wp(putargr, u, v);
+ assert_putarg_type(code, v->code);
+ jit_code_inc_synth_wp(code, u, v);
if (jit_arg_reg_p(v->u.w))
jit_movr(JIT_RA0 - v->u.w, u);
- else
- jit_stxi(v->u.w, JIT_FP, u);
+ else {
+ jit_node_t *node = jit_stxi(v->u.w, JIT_FP, u);
+ jit_link_alist(node);
+ }
jit_dec_synth();
}
void
-_jit_putargi(jit_state_t *_jit, jit_word_t u, jit_node_t *v)
+_jit_putargi(jit_state_t *_jit, jit_word_t u, jit_node_t *v, jit_code_t code)
{
jit_int32_t regno;
- assert(v->code == jit_code_arg);
- jit_inc_synth_wp(putargi, u, v);
+ assert_putarg_type(code, v->code);
+ jit_code_inc_synth_wp(code, u, v);
if (jit_arg_reg_p(v->u.w))
jit_movi(JIT_RA0 - v->u.w, u);
else {
+ jit_node_t *node;
regno = jit_get_reg(jit_class_gpr);
jit_movi(regno, u);
- jit_stxi(v->u.w, JIT_FP, regno);
+ node = jit_stxi(v->u.w, JIT_FP, regno);
+ jit_link_alist(node);
jit_unget_reg(regno);
}
jit_dec_synth();
jit_movr_f(u, JIT_FA0 - v->u.w);
else if (jit_arg_reg_p(v->u.w - 8))
jit_movr_w_f(u, JIT_RA0 - (v->u.w - 8));
- else
- jit_ldxi_f(u, JIT_FP, v->u.w);
+ else {
+ jit_node_t *node = jit_ldxi_f(u, JIT_FP, v->u.w);
+ jit_link_alist(node);
+ }
jit_dec_synth();
}
jit_movr_f(JIT_FA0 - v->u.w, u);
else if (jit_arg_reg_p(v->u.w - 8))
jit_movr_f_w(JIT_RA0 - (v->u.w - 8), u);
- else
- jit_stxi_f(v->u.w, JIT_FP, u);
+ else {
+ jit_node_t *node = jit_stxi_f(v->u.w, JIT_FP, u);
+ jit_link_alist(node);
+ }
jit_dec_synth();
}
jit_inc_synth_fp(putargi_f, u, v);
if (jit_arg_f_reg_p(v->u.w))
jit_movi_f(JIT_FA0 - v->u.w, u);
- else if (jit_arg_reg_p(v->u.w - 8)) {
- union {
- jit_float32_t f;
- jit_int32_t i;
- } uu;
- uu.f = u;
- jit_movi(JIT_RA0 - (v->u.w - 8), uu.i);
- }
+ else if (jit_arg_reg_p(v->u.w - 8))
+ jit_movi_f_w(JIT_RA0 - (v->u.w - 8), u);
else {
+ jit_node_t *node;
regno = jit_get_reg(jit_class_fpr);
jit_movi_f(regno, u);
- jit_stxi_f(v->u.w, JIT_FP, regno);
+ node = jit_stxi_f(v->u.w, JIT_FP, regno);
+ jit_link_alist(node);
jit_unget_reg(regno);
}
jit_dec_synth();
jit_movr_d(u, JIT_FA0 - v->u.w);
else if (jit_arg_reg_p(v->u.w - 8))
jit_movr_w_d(u, JIT_RA0 - (v->u.w - 8));
- else
- jit_ldxi_d(u, JIT_FP, v->u.w);
+ else {
+ jit_node_t *node = jit_ldxi_d(u, JIT_FP, v->u.w);
+ jit_link_alist(node);
+ }
jit_dec_synth();
}
jit_movr_d(JIT_FA0 - v->u.w, u);
else if (jit_arg_reg_p(v->u.w - 8))
jit_movr_d_w(JIT_RA0 - (v->u.w - 8), u);
- else
- jit_stxi_d(v->u.w, JIT_FP, u);
+ else {
+ jit_node_t *node = jit_stxi_d(v->u.w, JIT_FP, u);
+ jit_link_alist(node);
+ }
jit_dec_synth();
}
jit_inc_synth_dp(putargi_d, u, v);
if (jit_arg_reg_p(v->u.w))
jit_movi_d(JIT_FA0 - v->u.w, u);
- else if (jit_arg_reg_p(v->u.w - 8)) {
- union {
- jit_float64_t d;
- jit_int64_t w;
- } uu;
- uu.d = u;
- jit_movi(JIT_RA0 - (v->u.w - 8), uu.w);
- }
+ else if (jit_arg_reg_p(v->u.w - 8))
+ jit_movi_d_w(JIT_RA0 - (v->u.w - 8), u);
else {
+ jit_node_t *node;
regno = jit_get_reg(jit_class_fpr);
jit_movi_d(regno, u);
- jit_stxi_d(v->u.w, JIT_FP, regno);
+ node = jit_stxi_d(v->u.w, JIT_FP, regno);
+ jit_link_alist(node);
jit_unget_reg(regno);
}
jit_dec_synth();
}
void
-_jit_pushargr(jit_state_t *_jit, jit_int32_t u)
+_jit_pushargr(jit_state_t *_jit, jit_int32_t u, jit_code_t code)
{
assert(_jitc->function);
- jit_inc_synth_w(pushargr, u);
+ jit_code_inc_synth_w(code, u);
jit_link_prepare();
if (jit_arg_reg_p(_jitc->function->call.argi)) {
jit_movr(JIT_RA0 - _jitc->function->call.argi, u);
else {
jit_stxi(_jitc->function->call.size, JIT_SP, u);
_jitc->function->call.size += sizeof(jit_word_t);
+ jit_check_frame();
}
jit_dec_synth();
}
void
-_jit_pushargi(jit_state_t *_jit, jit_word_t u)
+_jit_pushargi(jit_state_t *_jit, jit_word_t u, jit_code_t code)
{
jit_int32_t regno;
assert(_jitc->function);
- jit_inc_synth_w(pushargi, u);
+ jit_code_inc_synth_w(code, u);
jit_link_prepare();
if (jit_arg_reg_p(_jitc->function->call.argi)) {
jit_movi(JIT_RA0 - _jitc->function->call.argi, u);
jit_stxi(_jitc->function->call.size, JIT_SP, regno);
jit_unget_reg(regno);
_jitc->function->call.size += sizeof(jit_word_t);
+ jit_check_frame();
}
jit_dec_synth();
}
else {
jit_stxi_f(_jitc->function->call.size, JIT_SP, u);
_jitc->function->call.size += sizeof(jit_word_t);
+ jit_check_frame();
}
jit_dec_synth();
}
jit_stxi_f(_jitc->function->call.size, JIT_SP, regno);
jit_unget_reg(regno);
_jitc->function->call.size += sizeof(jit_word_t);
+ jit_check_frame();
}
jit_dec_synth();
}
else {
jit_stxi_d(_jitc->function->call.size, JIT_SP, u);
_jitc->function->call.size += sizeof(jit_word_t);
+ jit_check_frame();
}
jit_dec_synth();
}
jit_stxi_d(_jitc->function->call.size, JIT_SP, regno);
jit_unget_reg(regno);
_jitc->function->call.size += sizeof(jit_word_t);
+ jit_check_frame();
}
jit_dec_synth();
}
{
jit_node_t *node;
assert(_jitc->function);
+ jit_check_frame();
jit_inc_synth_w(finishr, r0);
if (_jitc->function->self.alen < _jitc->function->call.size)
_jitc->function->self.alen = _jitc->function->call.size;
{
jit_node_t *node;
assert(_jitc->function);
+ jit_check_frame();
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;
jit_node_t *node;
jit_uint8_t *data;
jit_word_t word;
+ jit_function_t func;
#if DEVEL_DISASSEMBLER
jit_word_t prevw;
#endif
if ((word = _jit->pc.w & (node->u.w - 1)))
nop(node->u.w - word);
break;
+ case jit_code_skip:
+ nop((node->u.w + 3) & ~3);
+ break;
case jit_code_note: case jit_code_name:
node->u.w = _jit->pc.w;
break;
case_rrw(rsh, _u);
case_rr(neg,);
case_rr(com,);
+#define clor(r0, r1) fallback_clo(r0, r1)
+#define clzr(r0, r1) fallback_clz(r0, r1)
+#define ctor(r0, r1) fallback_cto(r0, r1)
+#define ctzr(r0, r1) fallback_ctz(r0, r1)
+ case_rr(clo,);
+ case_rr(clz,);
+ case_rr(cto,);
+ case_rr(ctz,);
case_rrr(and,);
case_rrw(and,);
case_rrr(or,);
case_brr(bunord, _d);
case_brd(bunord);
case jit_code_jmpr:
+ jit_check_frame();
jmpr(rn(node->u.w));
break;
case jit_code_jmpi:
if (temp->flag & jit_flag_patch)
jmpi(temp->u.w);
else {
+ word = _jit->code.length -
+ (_jit->pc.uc - _jit->code.ptr);
+ if (simm20_p(word))
+ word = jmpi(_jit->pc.w);
+ else
word = jmpi_p(_jit->pc.w);
patch(word, node);
}
}
- else
+ else {
+ jit_check_frame();
jmpi(node->u.w);
+ }
break;
case jit_code_callr:
+ jit_check_frame();
callr(rn(node->u.w));
break;
case jit_code_calli:
if (temp->flag & jit_flag_patch)
calli(temp->u.w);
else {
- word = calli_p(_jit->pc.w);
+ word = _jit->code.length -
+ (_jit->pc.uc - _jit->code.ptr);
+ if (simm20_p(word))
+ word = calli(_jit->pc.w);
+ else
+ word = calli_p(_jit->pc.w);
patch(word, node);
}
}
- else
+ else {
+ jit_check_frame();
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;
+ memcpy(&undo.func, _jitc->function, sizeof(undo.func));
#if DEVEL_DISASSEMBLER
undo.prevw = prevw;
#endif
undo.patch_offset = _jitc->patches.offset;
restart_function:
+ compute_framesize();
+ patch_alist(0);
_jitc->again = 0;
prolog(node);
break;
temp->flag &= ~jit_flag_patch;
node = undo.node;
_jit->pc.w = undo.word;
+ /* undo.func.self.aoff and undo.func.regset should not
+ * be undone, as they will be further updated, and are
+ * the reason of the undo. */
+ undo.func.self.aoff = _jitc->function->frame +
+ _jitc->function->self.aoff;
+ undo.func.need_frame = _jitc->function->need_frame;
+ jit_regset_set(&undo.func.regset, &_jitc->function->regset);
+ /* allocar information also does not need to be undone */
+ undo.func.aoffoff = _jitc->function->aoffoff;
+ undo.func.allocar = _jitc->function->allocar;
+ /* this will be recomputed but undo anyway to have it
+ * better self documented.*/
+ undo.func.need_stack = _jitc->function->need_stack;
+ memcpy(_jitc->function, &undo.func, sizeof(undo.func));
#if DEVEL_DISASSEMBLER
prevw = undo.prevw;
#endif
_jitc->patches.offset = undo.patch_offset;
+ patch_alist(1);
goto restart_function;
}
/* remember label is defined */
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_c: case jit_code_arg_s:
+ case jit_code_arg_i:
+ case jit_code_arg_l:
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_c: case jit_code_reti_c:
+ case jit_code_retr_uc: case jit_code_reti_uc:
+ case jit_code_retr_s: case jit_code_reti_s:
+ case jit_code_retr_us: case jit_code_reti_us:
+ case jit_code_retr_i: case jit_code_reti_i:
+ case jit_code_retr_ui: case jit_code_reti_ui:
+ case jit_code_retr_l: case jit_code_reti_l:
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_i: case jit_code_getarg_ui:
case jit_code_getarg_l:
case jit_code_getarg_f: case jit_code_getarg_d:
- case jit_code_putargr: case jit_code_putargi:
+ case jit_code_putargr_c: case jit_code_putargi_c:
+ case jit_code_putargr_uc: case jit_code_putargi_uc:
+ case jit_code_putargr_s: case jit_code_putargi_s:
+ case jit_code_putargr_us: case jit_code_putargi_us:
+ case jit_code_putargr_i: case jit_code_putargi_i:
+ case jit_code_putargr_ui: case jit_code_putargi_ui:
+ case jit_code_putargr_l: case jit_code_putargi_l:
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_c: case jit_code_pushargi_c:
+ case jit_code_pushargr_uc: case jit_code_pushargi_uc:
+ case jit_code_pushargr_s: case jit_code_pushargi_s:
+ case jit_code_pushargr_us: case jit_code_pushargi_us:
+ case jit_code_pushargr_i: case jit_code_pushargi_i:
+ case jit_code_pushargr_ui: case jit_code_pushargi_ui:
+ case jit_code_pushargr_l: case jit_code_pushargi_l:
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:
#define CODE 1
# include "jit_riscv-cpu.c"
# include "jit_riscv-fpu.c"
+# include "jit_fallback.c"
#undef CODE
static void
stxi_d(i0, rn(r0), rn(r1));
}
+#if __WORDSIZE != 64
+# error "only 64 bit ports tested"
+#endif
+static void
+_compute_framesize(jit_state_t *_jit)
+{
+ jit_int32_t reg;
+ _jitc->framesize = 16; /* ra+fp */
+ for (reg = 0; reg < jit_size(iregs); reg++)
+ if (jit_regset_tstbit(&_jitc->function->regset, iregs[reg]))
+ _jitc->framesize += sizeof(jit_word_t);
+
+ for (reg = 0; reg < jit_size(fregs); reg++)
+ if (jit_regset_tstbit(&_jitc->function->regset, fregs[reg]))
+ _jitc->framesize += sizeof(jit_float64_t);
+
+ /* Space to store variadic arguments */
+ if (_jitc->function->self.call & jit_call_varargs)
+ _jitc->framesize += (8 - _jitc->function->vagp) * 8;
+
+ /* Make sure functions called have a 16 byte aligned stack */
+ _jitc->framesize = (_jitc->framesize + 15) & -16;
+}
+
static void
_patch(jit_state_t *_jit, jit_word_t instr, jit_node_t *node)
{