From bd3fe0cac583739bc0d7c4b5c8f301bb350abca0 Mon Sep 17 00:00:00 2001
From: Andy Belle-Isle <drumsetmonkey@gmail.com>
Date: Fri, 30 Aug 2019 00:19:31 -0400
Subject: Renamed lib to deps so github will ignore it for language stats
---
lib/LuaJIT/src/lj_ffrecord.c | 1226 ------------------------------------------
1 file changed, 1226 deletions(-)
delete mode 100644 lib/LuaJIT/src/lj_ffrecord.c
(limited to 'lib/LuaJIT/src/lj_ffrecord.c')
diff --git a/lib/LuaJIT/src/lj_ffrecord.c b/lib/LuaJIT/src/lj_ffrecord.c
deleted file mode 100644
index 849d7a2..0000000
--- a/lib/LuaJIT/src/lj_ffrecord.c
+++ /dev/null
@@ -1,1226 +0,0 @@
-/*
-** Fast function call recorder.
-** Copyright (C) 2005-2017 Mike Pall. See Copyright Notice in luajit.h
-*/
-
-#define lj_ffrecord_c
-#define LUA_CORE
-
-#include "lj_obj.h"
-
-#if LJ_HASJIT
-
-#include "lj_err.h"
-#include "lj_str.h"
-#include "lj_tab.h"
-#include "lj_frame.h"
-#include "lj_bc.h"
-#include "lj_ff.h"
-#include "lj_ir.h"
-#include "lj_jit.h"
-#include "lj_ircall.h"
-#include "lj_iropt.h"
-#include "lj_trace.h"
-#include "lj_record.h"
-#include "lj_ffrecord.h"
-#include "lj_crecord.h"
-#include "lj_dispatch.h"
-#include "lj_vm.h"
-#include "lj_strscan.h"
-#include "lj_strfmt.h"
-
-/* Some local macros to save typing. Undef'd at the end. */
-#define IR(ref) (&J->cur.ir[(ref)])
-
-/* Pass IR on to next optimization in chain (FOLD). */
-#define emitir(ot, a, b) (lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
-
-/* -- Fast function recording handlers ------------------------------------ */
-
-/* Conventions for fast function call handlers:
-**
-** The argument slots start at J->base[0]. All of them are guaranteed to be
-** valid and type-specialized references. J->base[J->maxslot] is set to 0
-** as a sentinel. The runtime argument values start at rd->argv[0].
-**
-** In general fast functions should check for presence of all of their
-** arguments and for the correct argument types. Some simplifications
-** are allowed if the interpreter throws instead. But even if recording
-** is aborted, the generated IR must be consistent (no zero-refs).
-**
-** The number of results in rd->nres is set to 1. Handlers that return
-** a different number of results need to override it. A negative value
-** prevents return processing (e.g. for pending calls).
-**
-** Results need to be stored starting at J->base[0]. Return processing
-** moves them to the right slots later.
-**
-** The per-ffid auxiliary data is the value of the 2nd part of the
-** LJLIB_REC() annotation. This allows handling similar functionality
-** in a common handler.
-*/
-
-/* Type of handler to record a fast function. */
-typedef void (LJ_FASTCALL *RecordFunc)(jit_State *J, RecordFFData *rd);
-
-/* Get runtime value of int argument. */
-static int32_t argv2int(jit_State *J, TValue *o)
-{
- if (!lj_strscan_numberobj(o))
- lj_trace_err(J, LJ_TRERR_BADTYPE);
- return tvisint(o) ? intV(o) : lj_num2int(numV(o));
-}
-
-/* Get runtime value of string argument. */
-static GCstr *argv2str(jit_State *J, TValue *o)
-{
- if (LJ_LIKELY(tvisstr(o))) {
- return strV(o);
- } else {
- GCstr *s;
- if (!tvisnumber(o))
- lj_trace_err(J, LJ_TRERR_BADTYPE);
- s = lj_strfmt_number(J->L, o);
- setstrV(J->L, o, s);
- return s;
- }
-}
-
-/* Return number of results wanted by caller. */
-static ptrdiff_t results_wanted(jit_State *J)
-{
- TValue *frame = J->L->base-1;
- if (frame_islua(frame))
- return (ptrdiff_t)bc_b(frame_pc(frame)[-1]) - 1;
- else
- return -1;
-}
-
-/* Trace stitching: add continuation below frame to start a new trace. */
-static void recff_stitch(jit_State *J)
-{
- ASMFunction cont = lj_cont_stitch;
- lua_State *L = J->L;
- TValue *base = L->base;
- BCReg nslot = J->maxslot + 1 + LJ_FR2;
- TValue *nframe = base + 1 + LJ_FR2;
- const BCIns *pc = frame_pc(base-1);
- TValue *pframe = frame_prevl(base-1);
-
- /* Move func + args up in Lua stack and insert continuation. */
- memmove(&base[1], &base[-1-LJ_FR2], sizeof(TValue)*nslot);
- setframe_ftsz(nframe, ((char *)nframe - (char *)pframe) + FRAME_CONT);
- setcont(base-LJ_FR2, cont);
- setframe_pc(base, pc);
- setnilV(base-1-LJ_FR2); /* Incorrect, but rec_check_slots() won't run anymore. */
- L->base += 2 + LJ_FR2;
- L->top += 2 + LJ_FR2;
-
- /* Ditto for the IR. */
- memmove(&J->base[1], &J->base[-1-LJ_FR2], sizeof(TRef)*nslot);
-#if LJ_FR2
- J->base[2] = TREF_FRAME;
- J->base[-1] = lj_ir_k64(J, IR_KNUM, u64ptr(contptr(cont)));
- J->base[0] = lj_ir_k64(J, IR_KNUM, u64ptr(pc)) | TREF_CONT;
-#else
- J->base[0] = lj_ir_kptr(J, contptr(cont)) | TREF_CONT;
-#endif
- J->ktrace = tref_ref((J->base[-1-LJ_FR2] = lj_ir_ktrace(J)));
- J->base += 2 + LJ_FR2;
- J->baseslot += 2 + LJ_FR2;
- J->framedepth++;
-
- lj_record_stop(J, LJ_TRLINK_STITCH, 0);
-
- /* Undo Lua stack changes. */
- memmove(&base[-1-LJ_FR2], &base[1], sizeof(TValue)*nslot);
- setframe_pc(base-1, pc);
- L->base -= 2 + LJ_FR2;
- L->top -= 2 + LJ_FR2;
-}
-
-/* Fallback handler for fast functions that are not recorded (yet). */
-static void LJ_FASTCALL recff_nyi(jit_State *J, RecordFFData *rd)
-{
- if (J->cur.nins < (IRRef)J->param[JIT_P_minstitch] + REF_BASE) {
- lj_trace_err_info(J, LJ_TRERR_TRACEUV);
- } else {
- /* Can only stitch from Lua call. */
- if (J->framedepth && frame_islua(J->L->base-1)) {
- BCOp op = bc_op(*frame_pc(J->L->base-1));
- /* Stitched trace cannot start with *M op with variable # of args. */
- if (!(op == BC_CALLM || op == BC_CALLMT ||
- op == BC_RETM || op == BC_TSETM)) {
- switch (J->fn->c.ffid) {
- case FF_error:
- case FF_debug_sethook:
- case FF_jit_flush:
- break; /* Don't stitch across special builtins. */
- default:
- recff_stitch(J); /* Use trace stitching. */
- rd->nres = -1;
- return;
- }
- }
- }
- /* Otherwise stop trace and return to interpreter. */
- lj_record_stop(J, LJ_TRLINK_RETURN, 0);
- rd->nres = -1;
- }
-}
-
-/* Fallback handler for unsupported variants of fast functions. */
-#define recff_nyiu recff_nyi
-
-/* Must stop the trace for classic C functions with arbitrary side-effects. */
-#define recff_c recff_nyi
-
-/* Emit BUFHDR for the global temporary buffer. */
-static TRef recff_bufhdr(jit_State *J)
-{
- return emitir(IRT(IR_BUFHDR, IRT_PGC),
- lj_ir_kptr(J, &J2G(J)->tmpbuf), IRBUFHDR_RESET);
-}
-
-/* -- Base library fast functions ----------------------------------------- */
-
-static void LJ_FASTCALL recff_assert(jit_State *J, RecordFFData *rd)
-{
- /* Arguments already specialized. The interpreter throws for nil/false. */
- rd->nres = J->maxslot; /* Pass through all arguments. */
-}
-
-static void LJ_FASTCALL recff_type(jit_State *J, RecordFFData *rd)
-{
- /* Arguments already specialized. Result is a constant string. Neat, huh? */
- uint32_t t;
- if (tvisnumber(&rd->argv[0]))
- t = ~LJ_TNUMX;
- else if (LJ_64 && !LJ_GC64 && tvislightud(&rd->argv[0]))
- t = ~LJ_TLIGHTUD;
- else
- t = ~itype(&rd->argv[0]);
- J->base[0] = lj_ir_kstr(J, strV(&J->fn->c.upvalue[t]));
- UNUSED(rd);
-}
-
-static void LJ_FASTCALL recff_getmetatable(jit_State *J, RecordFFData *rd)
-{
- TRef tr = J->base[0];
- if (tr) {
- RecordIndex ix;
- ix.tab = tr;
- copyTV(J->L, &ix.tabv, &rd->argv[0]);
- if (lj_record_mm_lookup(J, &ix, MM_metatable))
- J->base[0] = ix.mobj;
- else
- J->base[0] = ix.mt;
- } /* else: Interpreter will throw. */
-}
-
-static void LJ_FASTCALL recff_setmetatable(jit_State *J, RecordFFData *rd)
-{
- TRef tr = J->base[0];
- TRef mt = J->base[1];
- if (tref_istab(tr) && (tref_istab(mt) || (mt && tref_isnil(mt)))) {
- TRef fref, mtref;
- RecordIndex ix;
- ix.tab = tr;
- copyTV(J->L, &ix.tabv, &rd->argv[0]);
- lj_record_mm_lookup(J, &ix, MM_metatable); /* Guard for no __metatable. */
- fref = emitir(IRT(IR_FREF, IRT_PGC), tr, IRFL_TAB_META);
- mtref = tref_isnil(mt) ? lj_ir_knull(J, IRT_TAB) : mt;
- emitir(IRT(IR_FSTORE, IRT_TAB), fref, mtref);
- if (!tref_isnil(mt))
- emitir(IRT(IR_TBAR, IRT_TAB), tr, 0);
- J->base[0] = tr;
- J->needsnap = 1;
- } /* else: Interpreter will throw. */
-}
-
-static void LJ_FASTCALL recff_rawget(jit_State *J, RecordFFData *rd)
-{
- RecordIndex ix;
- ix.tab = J->base[0]; ix.key = J->base[1];
- if (tref_istab(ix.tab) && ix.key) {
- ix.val = 0; ix.idxchain = 0;
- settabV(J->L, &ix.tabv, tabV(&rd->argv[0]));
- copyTV(J->L, &ix.keyv, &rd->argv[1]);
- J->base[0] = lj_record_idx(J, &ix);
- } /* else: Interpreter will throw. */
-}
-
-static void LJ_FASTCALL recff_rawset(jit_State *J, RecordFFData *rd)
-{
- RecordIndex ix;
- ix.tab = J->base[0]; ix.key = J->base[1]; ix.val = J->base[2];
- if (tref_istab(ix.tab) && ix.key && ix.val) {
- ix.idxchain = 0;
- settabV(J->L, &ix.tabv, tabV(&rd->argv[0]));
- copyTV(J->L, &ix.keyv, &rd->argv[1]);
- copyTV(J->L, &ix.valv, &rd->argv[2]);
- lj_record_idx(J, &ix);
- /* Pass through table at J->base[0] as result. */
- } /* else: Interpreter will throw. */
-}
-
-static void LJ_FASTCALL recff_rawequal(jit_State *J, RecordFFData *rd)
-{
- TRef tra = J->base[0];
- TRef trb = J->base[1];
- if (tra && trb) {
- int diff = lj_record_objcmp(J, tra, trb, &rd->argv[0], &rd->argv[1]);
- J->base[0] = diff ? TREF_FALSE : TREF_TRUE;
- } /* else: Interpreter will throw. */
-}
-
-#if LJ_52
-static void LJ_FASTCALL recff_rawlen(jit_State *J, RecordFFData *rd)
-{
- TRef tr = J->base[0];
- if (tref_isstr(tr))
- J->base[0] = emitir(IRTI(IR_FLOAD), tr, IRFL_STR_LEN);
- else if (tref_istab(tr))
- J->base[0] = lj_ir_call(J, IRCALL_lj_tab_len, tr);
- /* else: Interpreter will throw. */
- UNUSED(rd);
-}
-#endif
-
-/* Determine mode of select() call. */
-int32_t lj_ffrecord_select_mode(jit_State *J, TRef tr, TValue *tv)
-{
- if (tref_isstr(tr) && *strVdata(tv) == '#') { /* select('#', ...) */
- if (strV(tv)->len == 1) {
- emitir(IRTG(IR_EQ, IRT_STR), tr, lj_ir_kstr(J, strV(tv)));
- } else {
- TRef trptr = emitir(IRT(IR_STRREF, IRT_PGC), tr, lj_ir_kint(J, 0));
- TRef trchar = emitir(IRT(IR_XLOAD, IRT_U8), trptr, IRXLOAD_READONLY);
- emitir(IRTG(IR_EQ, IRT_INT), trchar, lj_ir_kint(J, '#'));
- }
- return 0;
- } else { /* select(n, ...) */
- int32_t start = argv2int(J, tv);
- if (start == 0) lj_trace_err(J, LJ_TRERR_BADTYPE); /* A bit misleading. */
- return start;
- }
-}
-
-static void LJ_FASTCALL recff_select(jit_State *J, RecordFFData *rd)
-{
- TRef tr = J->base[0];
- if (tr) {
- ptrdiff_t start = lj_ffrecord_select_mode(J, tr, &rd->argv[0]);
- if (start == 0) { /* select('#', ...) */
- J->base[0] = lj_ir_kint(J, J->maxslot - 1);
- } else if (tref_isk(tr)) { /* select(k, ...) */
- ptrdiff_t n = (ptrdiff_t)J->maxslot;
- if (start < 0) start += n;
- else if (start > n) start = n;
- rd->nres = n - start;
- if (start >= 1) {
- ptrdiff_t i;
- for (i = 0; i < n - start; i++)
- J->base[i] = J->base[start+i];
- } /* else: Interpreter will throw. */
- } else {
- recff_nyiu(J, rd);
- return;
- }
- } /* else: Interpreter will throw. */
-}
-
-static void LJ_FASTCALL recff_tonumber(jit_State *J, RecordFFData *rd)
-{
- TRef tr = J->base[0];
- TRef base = J->base[1];
- if (tr && !tref_isnil(base)) {
- base = lj_opt_narrow_toint(J, base);
- if (!tref_isk(base) || IR(tref_ref(base))->i != 10) {
- recff_nyiu(J, rd);
- return;
- }
- }
- if (tref_isnumber_str(tr)) {
- if (tref_isstr(tr)) {
- TValue tmp;
- if (!lj_strscan_num(strV(&rd->argv[0]), &tmp)) {
- recff_nyiu(J, rd); /* Would need an inverted STRTO for this case. */
- return;
- }
- tr = emitir(IRTG(IR_STRTO, IRT_NUM), tr, 0);
- }
-#if LJ_HASFFI
- } else if (tref_iscdata(tr)) {
- lj_crecord_tonumber(J, rd);
- return;
-#endif
- } else {
- tr = TREF_NIL;
- }
- J->base[0] = tr;
- UNUSED(rd);
-}
-
-static TValue *recff_metacall_cp(lua_State *L, lua_CFunction dummy, void *ud)
-{
- jit_State *J = (jit_State *)ud;
- lj_record_tailcall(J, 0, 1);
- UNUSED(L); UNUSED(dummy);
- return NULL;
-}
-
-static int recff_metacall(jit_State *J, RecordFFData *rd, MMS mm)
-{
- RecordIndex ix;
- ix.tab = J->base[0];
- copyTV(J->L, &ix.tabv, &rd->argv[0]);
- if (lj_record_mm_lookup(J, &ix, mm)) { /* Has metamethod? */
- int errcode;
- TValue argv0;
- /* Temporarily insert metamethod below object. */
- J->base[1+LJ_FR2] = J->base[0];
- J->base[0] = ix.mobj;
- copyTV(J->L, &argv0, &rd->argv[0]);
- copyTV(J->L, &rd->argv[1+LJ_FR2], &rd->argv[0]);
- copyTV(J->L, &rd->argv[0], &ix.mobjv);
- /* Need to protect lj_record_tailcall because it may throw. */
- errcode = lj_vm_cpcall(J->L, NULL, J, recff_metacall_cp);
- /* Always undo Lua stack changes to avoid confusing the interpreter. */
- copyTV(J->L, &rd->argv[0], &argv0);
- if (errcode)
- lj_err_throw(J->L, errcode); /* Propagate errors. */
- rd->nres = -1; /* Pending call. */
- return 1; /* Tailcalled to metamethod. */
- }
- return 0;
-}
-
-static void LJ_FASTCALL recff_tostring(jit_State *J, RecordFFData *rd)
-{
- TRef tr = J->base[0];
- if (tref_isstr(tr)) {
- /* Ignore __tostring in the string base metatable. */
- /* Pass on result in J->base[0]. */
- } else if (tr && !recff_metacall(J, rd, MM_tostring)) {
- if (tref_isnumber(tr)) {
- J->base[0] = emitir(IRT(IR_TOSTR, IRT_STR), tr,
- tref_isnum(tr) ? IRTOSTR_NUM : IRTOSTR_INT);
- } else if (tref_ispri(tr)) {
- J->base[0] = lj_ir_kstr(J, lj_strfmt_obj(J->L, &rd->argv[0]));
- } else {
- recff_nyiu(J, rd);
- return;
- }
- }
-}
-
-static void LJ_FASTCALL recff_ipairs_aux(jit_State *J, RecordFFData *rd)
-{
- RecordIndex ix;
- ix.tab = J->base[0];
- if (tref_istab(ix.tab)) {
- if (!tvisnumber(&rd->argv[1])) /* No support for string coercion. */
- lj_trace_err(J, LJ_TRERR_BADTYPE);
- setintV(&ix.keyv, numberVint(&rd->argv[1])+1);
- settabV(J->L, &ix.tabv, tabV(&rd->argv[0]));
- ix.val = 0; ix.idxchain = 0;
- ix.key = lj_opt_narrow_toint(J, J->base[1]);
- J->base[0] = ix.key = emitir(IRTI(IR_ADD), ix.key, lj_ir_kint(J, 1));
- J->base[1] = lj_record_idx(J, &ix);
- rd->nres = tref_isnil(J->base[1]) ? 0 : 2;
- } /* else: Interpreter will throw. */
-}
-
-static void LJ_FASTCALL recff_xpairs(jit_State *J, RecordFFData *rd)
-{
- TRef tr = J->base[0];
- if (!((LJ_52 || (LJ_HASFFI && tref_iscdata(tr))) &&
- recff_metacall(J, rd, MM_pairs + rd->data))) {
- if (tref_istab(tr)) {
- J->base[0] = lj_ir_kfunc(J, funcV(&J->fn->c.upvalue[0]));
- J->base[1] = tr;
- J->base[2] = rd->data ? lj_ir_kint(J, 0) : TREF_NIL;
- rd->nres = 3;
- } /* else: Interpreter will throw. */
- }
-}
-
-static void LJ_FASTCALL recff_pcall(jit_State *J, RecordFFData *rd)
-{
- if (J->maxslot >= 1) {
-#if LJ_FR2
- /* Shift function arguments up. */
- memmove(J->base + 1, J->base, sizeof(TRef) * J->maxslot);
-#endif
- lj_record_call(J, 0, J->maxslot - 1);
- rd->nres = -1; /* Pending call. */
- } /* else: Interpreter will throw. */
-}
-
-static TValue *recff_xpcall_cp(lua_State *L, lua_CFunction dummy, void *ud)
-{
- jit_State *J = (jit_State *)ud;
- lj_record_call(J, 1, J->maxslot - 2);
- UNUSED(L); UNUSED(dummy);
- return NULL;
-}
-
-static void LJ_FASTCALL recff_xpcall(jit_State *J, RecordFFData *rd)
-{
- if (J->maxslot >= 2) {
- TValue argv0, argv1;
- TRef tmp;
- int errcode;
- /* Swap function and traceback. */
- tmp = J->base[0]; J->base[0] = J->base[1]; J->base[1] = tmp;
- copyTV(J->L, &argv0, &rd->argv[0]);
- copyTV(J->L, &argv1, &rd->argv[1]);
- copyTV(J->L, &rd->argv[0], &argv1);
- copyTV(J->L, &rd->argv[1], &argv0);
-#if LJ_FR2
- /* Shift function arguments up. */
- memmove(J->base + 2, J->base + 1, sizeof(TRef) * (J->maxslot-1));
-#endif
- /* Need to protect lj_record_call because it may throw. */
- errcode = lj_vm_cpcall(J->L, NULL, J, recff_xpcall_cp);
- /* Always undo Lua stack swap to avoid confusing the interpreter. */
- copyTV(J->L, &rd->argv[0], &argv0);
- copyTV(J->L, &rd->argv[1], &argv1);
- if (errcode)
- lj_err_throw(J->L, errcode); /* Propagate errors. */
- rd->nres = -1; /* Pending call. */
- } /* else: Interpreter will throw. */
-}
-
-static void LJ_FASTCALL recff_getfenv(jit_State *J, RecordFFData *rd)
-{
- TRef tr = J->base[0];
- /* Only support getfenv(0) for now. */
- if (tref_isint(tr) && tref_isk(tr) && IR(tref_ref(tr))->i == 0) {
- TRef trl = emitir(IRT(IR_LREF, IRT_THREAD), 0, 0);
- J->base[0] = emitir(IRT(IR_FLOAD, IRT_TAB), trl, IRFL_THREAD_ENV);
- return;
- }
- recff_nyiu(J, rd);
-}
-
-/* -- Math library fast functions ----------------------------------------- */
-
-static void LJ_FASTCALL recff_math_abs(jit_State *J, RecordFFData *rd)
-{
- TRef tr = lj_ir_tonum(J, J->base[0]);
- J->base[0] = emitir(IRTN(IR_ABS), tr, lj_ir_ksimd(J, LJ_KSIMD_ABS));
- UNUSED(rd);
-}
-
-/* Record rounding functions math.floor and math.ceil. */
-static void LJ_FASTCALL recff_math_round(jit_State *J, RecordFFData *rd)
-{
- TRef tr = J->base[0];
- if (!tref_isinteger(tr)) { /* Pass through integers unmodified. */
- tr = emitir(IRTN(IR_FPMATH), lj_ir_tonum(J, tr), rd->data);
- /* Result is integral (or NaN/Inf), but may not fit an int32_t. */
- if (LJ_DUALNUM) { /* Try to narrow using a guarded conversion to int. */
- lua_Number n = lj_vm_foldfpm(numberVnum(&rd->argv[0]), rd->data);
- if (n == (lua_Number)lj_num2int(n))
- tr = emitir(IRTGI(IR_CONV), tr, IRCONV_INT_NUM|IRCONV_CHECK);
- }
- J->base[0] = tr;
- }
-}
-
-/* Record unary math.* functions, mapped to IR_FPMATH opcode. */
-static void LJ_FASTCALL recff_math_unary(jit_State *J, RecordFFData *rd)
-{
- J->base[0] = emitir(IRTN(IR_FPMATH), lj_ir_tonum(J, J->base[0]), rd->data);
-}
-
-/* Record math.log. */
-static void LJ_FASTCALL recff_math_log(jit_State *J, RecordFFData *rd)
-{
- TRef tr = lj_ir_tonum(J, J->base[0]);
- if (J->base[1]) {
-#ifdef LUAJIT_NO_LOG2
- uint32_t fpm = IRFPM_LOG;
-#else
- uint32_t fpm = IRFPM_LOG2;
-#endif
- TRef trb = lj_ir_tonum(J, J->base[1]);
- tr = emitir(IRTN(IR_FPMATH), tr, fpm);
- trb = emitir(IRTN(IR_FPMATH), trb, fpm);
- trb = emitir(IRTN(IR_DIV), lj_ir_knum_one(J), trb);
- tr = emitir(IRTN(IR_MUL), tr, trb);
- } else {
- tr = emitir(IRTN(IR_FPMATH), tr, IRFPM_LOG);
- }
- J->base[0] = tr;
- UNUSED(rd);
-}
-
-/* Record math.atan2. */
-static void LJ_FASTCALL recff_math_atan2(jit_State *J, RecordFFData *rd)
-{
- TRef tr = lj_ir_tonum(J, J->base[0]);
- TRef tr2 = lj_ir_tonum(J, J->base[1]);
- J->base[0] = emitir(IRTN(IR_ATAN2), tr, tr2);
- UNUSED(rd);
-}
-
-/* Record math.ldexp. */
-static void LJ_FASTCALL recff_math_ldexp(jit_State *J, RecordFFData *rd)
-{
- TRef tr = lj_ir_tonum(J, J->base[0]);
-#if LJ_TARGET_X86ORX64
- TRef tr2 = lj_ir_tonum(J, J->base[1]);
-#else
- TRef tr2 = lj_opt_narrow_toint(J, J->base[1]);
-#endif
- J->base[0] = emitir(IRTN(IR_LDEXP), tr, tr2);
- UNUSED(rd);
-}
-
-/* Record math.asin, math.acos, math.atan. */
-static void LJ_FASTCALL recff_math_atrig(jit_State *J, RecordFFData *rd)
-{
- TRef y = lj_ir_tonum(J, J->base[0]);
- TRef x = lj_ir_knum_one(J);
- uint32_t ffid = rd->data;
- if (ffid != FF_math_atan) {
- TRef tmp = emitir(IRTN(IR_MUL), y, y);
- tmp = emitir(IRTN(IR_SUB), x, tmp);
- tmp = emitir(IRTN(IR_FPMATH), tmp, IRFPM_SQRT);
- if (ffid == FF_math_asin) { x = tmp; } else { x = y; y = tmp; }
- }
- J->base[0] = emitir(IRTN(IR_ATAN2), y, x);
-}
-
-static void LJ_FASTCALL recff_math_htrig(jit_State *J, RecordFFData *rd)
-{
- TRef tr = lj_ir_tonum(J, J->base[0]);
- J->base[0] = emitir(IRTN(IR_CALLN), tr, rd->data);
-}
-
-static void LJ_FASTCALL recff_math_modf(jit_State *J, RecordFFData *rd)
-{
- TRef tr = J->base[0];
- if (tref_isinteger(tr)) {
- J->base[0] = tr;
- J->base[1] = lj_ir_kint(J, 0);
- } else {
- TRef trt;
- tr = lj_ir_tonum(J, tr);
- trt = emitir(IRTN(IR_FPMATH), tr, IRFPM_TRUNC);
- J->base[0] = trt;
- J->base[1] = emitir(IRTN(IR_SUB), tr, trt);
- }
- rd->nres = 2;
-}
-
-static void LJ_FASTCALL recff_math_pow(jit_State *J, RecordFFData *rd)
-{
- J->base[0] = lj_opt_narrow_pow(J, J->base[0], J->base[1],
- &rd->argv[0], &rd->argv[1]);
- UNUSED(rd);
-}
-
-static void LJ_FASTCALL recff_math_minmax(jit_State *J, RecordFFData *rd)
-{
- TRef tr = lj_ir_tonumber(J, J->base[0]);
- uint32_t op = rd->data;
- BCReg i;
- for (i = 1; J->base[i] != 0; i++) {
- TRef tr2 = lj_ir_tonumber(J, J->base[i]);
- IRType t = IRT_INT;
- if (!(tref_isinteger(tr) && tref_isinteger(tr2))) {
- if (tref_isinteger(tr)) tr = emitir(IRTN(IR_CONV), tr, IRCONV_NUM_INT);
- if (tref_isinteger(tr2)) tr2 = emitir(IRTN(IR_CONV), tr2, IRCONV_NUM_INT);
- t = IRT_NUM;
- }
- tr = emitir(IRT(op, t), tr, tr2);
- }
- J->base[0] = tr;
-}
-
-static void LJ_FASTCALL recff_math_random(jit_State *J, RecordFFData *rd)
-{
- GCudata *ud = udataV(&J->fn->c.upvalue[0]);
- TRef tr, one;
- lj_ir_kgc(J, obj2gco(ud), IRT_UDATA); /* Prevent collection. */
- tr = lj_ir_call(J, IRCALL_lj_math_random_step, lj_ir_kptr(J, uddata(ud)));
- one = lj_ir_knum_one(J);
- tr = emitir(IRTN(IR_SUB), tr, one);
- if (J->base[0]) {
- TRef tr1 = lj_ir_tonum(J, J->base[0]);
- if (J->base[1]) { /* d = floor(d*(r2-r1+1.0)) + r1 */
- TRef tr2 = lj_ir_tonum(J, J->base[1]);
- tr2 = emitir(IRTN(IR_SUB), tr2, tr1);
- tr2 = emitir(IRTN(IR_ADD), tr2, one);
- tr = emitir(IRTN(IR_MUL), tr, tr2);
- tr = emitir(IRTN(IR_FPMATH), tr, IRFPM_FLOOR);
- tr = emitir(IRTN(IR_ADD), tr, tr1);
- } else { /* d = floor(d*r1) + 1.0 */
- tr = emitir(IRTN(IR_MUL), tr, tr1);
- tr = emitir(IRTN(IR_FPMATH), tr, IRFPM_FLOOR);
- tr = emitir(IRTN(IR_ADD), tr, one);
- }
- }
- J->base[0] = tr;
- UNUSED(rd);
-}
-
-/* -- Bit library fast functions ------------------------------------------ */
-
-/* Record bit.tobit. */
-static void LJ_FASTCALL recff_bit_tobit(jit_State *J, RecordFFData *rd)
-{
- TRef tr = J->base[0];
-#if LJ_HASFFI
- if (tref_iscdata(tr)) { recff_bit64_tobit(J, rd); return; }
-#endif
- J->base[0] = lj_opt_narrow_tobit(J, tr);
- UNUSED(rd);
-}
-
-/* Record unary bit.bnot, bit.bswap. */
-static void LJ_FASTCALL recff_bit_unary(jit_State *J, RecordFFData *rd)
-{
-#if LJ_HASFFI
- if (recff_bit64_unary(J, rd))
- return;
-#endif
- J->base[0] = emitir(IRTI(rd->data), lj_opt_narrow_tobit(J, J->base[0]), 0);
-}
-
-/* Record N-ary bit.band, bit.bor, bit.bxor. */
-static void LJ_FASTCALL recff_bit_nary(jit_State *J, RecordFFData *rd)
-{
-#if LJ_HASFFI
- if (recff_bit64_nary(J, rd))
- return;
-#endif
- {
- TRef tr = lj_opt_narrow_tobit(J, J->base[0]);
- uint32_t ot = IRTI(rd->data);
- BCReg i;
- for (i = 1; J->base[i] != 0; i++)
- tr = emitir(ot, tr, lj_opt_narrow_tobit(J, J->base[i]));
- J->base[0] = tr;
- }
-}
-
-/* Record bit shifts. */
-static void LJ_FASTCALL recff_bit_shift(jit_State *J, RecordFFData *rd)
-{
-#if LJ_HASFFI
- if (recff_bit64_shift(J, rd))
- return;
-#endif
- {
- TRef tr = lj_opt_narrow_tobit(J, J->base[0]);
- TRef tsh = lj_opt_narrow_tobit(J, J->base[1]);
- IROp op = (IROp)rd->data;
- if (!(op < IR_BROL ? LJ_TARGET_MASKSHIFT : LJ_TARGET_MASKROT) &&
- !tref_isk(tsh))
- tsh = emitir(IRTI(IR_BAND), tsh, lj_ir_kint(J, 31));
-#ifdef LJ_TARGET_UNIFYROT
- if (op == (LJ_TARGET_UNIFYROT == 1 ? IR_BROR : IR_BROL)) {
- op = LJ_TARGET_UNIFYROT == 1 ? IR_BROL : IR_BROR;
- tsh = emitir(IRTI(IR_NEG), tsh, tsh);
- }
-#endif
- J->base[0] = emitir(IRTI(op), tr, tsh);
- }
-}
-
-static void LJ_FASTCALL recff_bit_tohex(jit_State *J, RecordFFData *rd)
-{
-#if LJ_HASFFI
- TRef hdr = recff_bufhdr(J);
- TRef tr = recff_bit64_tohex(J, rd, hdr);
- J->base[0] = emitir(IRT(IR_BUFSTR, IRT_STR), tr, hdr);
-#else
- recff_nyiu(J, rd); /* Don't bother working around this NYI. */
-#endif
-}
-
-/* -- String library fast functions --------------------------------------- */
-
-/* Specialize to relative starting position for string. */
-static TRef recff_string_start(jit_State *J, GCstr *s, int32_t *st, TRef tr,
- TRef trlen, TRef tr0)
-{
- int32_t start = *st;
- if (start < 0) {
- emitir(IRTGI(IR_LT), tr, tr0);
- tr = emitir(IRTI(IR_ADD), trlen, tr);
- start = start + (int32_t)s->len;
- emitir(start < 0 ? IRTGI(IR_LT) : IRTGI(IR_GE), tr, tr0);
- if (start < 0) {
- tr = tr0;
- start = 0;
- }
- } else if (start == 0) {
- emitir(IRTGI(IR_EQ), tr, tr0);
- tr = tr0;
- } else {
- tr = emitir(IRTI(IR_ADD), tr, lj_ir_kint(J, -1));
- emitir(IRTGI(IR_GE), tr, tr0);
- start--;
- }
- *st = start;
- return tr;
-}
-
-/* Handle string.byte (rd->data = 0) and string.sub (rd->data = 1). */
-static void LJ_FASTCALL recff_string_range(jit_State *J, RecordFFData *rd)
-{
- TRef trstr = lj_ir_tostr(J, J->base[0]);
- TRef trlen = emitir(IRTI(IR_FLOAD), trstr, IRFL_STR_LEN);
- TRef tr0 = lj_ir_kint(J, 0);
- TRef trstart, trend;
- GCstr *str = argv2str(J, &rd->argv[0]);
- int32_t start, end;
- if (rd->data) { /* string.sub(str, start [,end]) */
- start = argv2int(J, &rd->argv[1]);
- trstart = lj_opt_narrow_toint(J, J->base[1]);
- trend = J->base[2];
- if (tref_isnil(trend)) {
- trend = lj_ir_kint(J, -1);
- end = -1;
- } else {
- trend = lj_opt_narrow_toint(J, trend);
- end = argv2int(J, &rd->argv[2]);
- }
- } else { /* string.byte(str, [,start [,end]]) */
- if (tref_isnil(J->base[1])) {
- start = 1;
- trstart = lj_ir_kint(J, 1);
- } else {
- start = argv2int(J, &rd->argv[1]);
- trstart = lj_opt_narrow_toint(J, J->base[1]);
- }
- if (J->base[1] && !tref_isnil(J->base[2])) {
- trend = lj_opt_narrow_toint(J, J->base[2]);
- end = argv2int(J, &rd->argv[2]);
- } else {
- trend = trstart;
- end = start;
- }
- }
- if (end < 0) {
- emitir(IRTGI(IR_LT), trend, tr0);
- trend = emitir(IRTI(IR_ADD), emitir(IRTI(IR_ADD), trlen, trend),
- lj_ir_kint(J, 1));
- end = end+(int32_t)str->len+1;
- } else if ((MSize)end <= str->len) {
- emitir(IRTGI(IR_ULE), trend, trlen);
- } else {
- emitir(IRTGI(IR_UGT), trend, trlen);
- end = (int32_t)str->len;
- trend = trlen;
- }
- trstart = recff_string_start(J, str, &start, trstart, trlen, tr0);
- if (rd->data) { /* Return string.sub result. */
- if (end - start >= 0) {
- /* Also handle empty range here, to avoid extra traces. */
- TRef trptr, trslen = emitir(IRTI(IR_SUB), trend, trstart);
- emitir(IRTGI(IR_GE), trslen, tr0);
- trptr = emitir(IRT(IR_STRREF, IRT_PGC), trstr, trstart);
- J->base[0] = emitir(IRT(IR_SNEW, IRT_STR), trptr, trslen);
- } else { /* Range underflow: return empty string. */
- emitir(IRTGI(IR_LT), trend, trstart);
- J->base[0] = lj_ir_kstr(J, &J2G(J)->strempty);
- }
- } else { /* Return string.byte result(s). */
- ptrdiff_t i, len = end - start;
- if (len > 0) {
- TRef trslen = emitir(IRTI(IR_SUB), trend, trstart);
- emitir(IRTGI(IR_EQ), trslen, lj_ir_kint(J, (int32_t)len));
- if (J->baseslot + len > LJ_MAX_JSLOTS)
- lj_trace_err_info(J, LJ_TRERR_STACKOV);
- rd->nres = len;
- for (i = 0; i < len; i++) {
- TRef tmp = emitir(IRTI(IR_ADD), trstart, lj_ir_kint(J, (int32_t)i));
- tmp = emitir(IRT(IR_STRREF, IRT_PGC), trstr, tmp);
- J->base[i] = emitir(IRT(IR_XLOAD, IRT_U8), tmp, IRXLOAD_READONLY);
- }
- } else { /* Empty range or range underflow: return no results. */
- emitir(IRTGI(IR_LE), trend, trstart);
- rd->nres = 0;
- }
- }
-}
-
-static void LJ_FASTCALL recff_string_char(jit_State *J, RecordFFData *rd)
-{
- TRef k255 = lj_ir_kint(J, 255);
- BCReg i;
- for (i = 0; J->base[i] != 0; i++) { /* Convert char values to strings. */
- TRef tr = lj_opt_narrow_toint(J, J->base[i]);
- emitir(IRTGI(IR_ULE), tr, k255);
- J->base[i] = emitir(IRT(IR_TOSTR, IRT_STR), tr, IRTOSTR_CHAR);
- }
- if (i > 1) { /* Concatenate the strings, if there's more than one. */
- TRef hdr = recff_bufhdr(J), tr = hdr;
- for (i = 0; J->base[i] != 0; i++)
- tr = emitir(IRT(IR_BUFPUT, IRT_PGC), tr, J->base[i]);
- J->base[0] = emitir(IRT(IR_BUFSTR, IRT_STR), tr, hdr);
- }
- UNUSED(rd);
-}
-
-static void LJ_FASTCALL recff_string_rep(jit_State *J, RecordFFData *rd)
-{
- TRef str = lj_ir_tostr(J, J->base[0]);
- TRef rep = lj_opt_narrow_toint(J, J->base[1]);
- TRef hdr, tr, str2 = 0;
- if (!tref_isnil(J->base[2])) {
- TRef sep = lj_ir_tostr(J, J->base[2]);
- int32_t vrep = argv2int(J, &rd->argv[1]);
- emitir(IRTGI(vrep > 1 ? IR_GT : IR_LE), rep, lj_ir_kint(J, 1));
- if (vrep > 1) {
- TRef hdr2 = recff_bufhdr(J);
- TRef tr2 = emitir(IRT(IR_BUFPUT, IRT_PGC), hdr2, sep);
- tr2 = emitir(IRT(IR_BUFPUT, IRT_PGC), tr2, str);
- str2 = emitir(IRT(IR_BUFSTR, IRT_STR), tr2, hdr2);
- }
- }
- tr = hdr = recff_bufhdr(J);
- if (str2) {
- tr = emitir(IRT(IR_BUFPUT, IRT_PGC), tr, str);
- str = str2;
- rep = emitir(IRTI(IR_ADD), rep, lj_ir_kint(J, -1));
- }
- tr = lj_ir_call(J, IRCALL_lj_buf_putstr_rep, tr, str, rep);
- J->base[0] = emitir(IRT(IR_BUFSTR, IRT_STR), tr, hdr);
-}
-
-static void LJ_FASTCALL recff_string_op(jit_State *J, RecordFFData *rd)
-{
- TRef str = lj_ir_tostr(J, J->base[0]);
- TRef hdr = recff_bufhdr(J);
- TRef tr = lj_ir_call(J, rd->data, hdr, str);
- J->base[0] = emitir(IRT(IR_BUFSTR, IRT_STR), tr, hdr);
-}
-
-static void LJ_FASTCALL recff_string_find(jit_State *J, RecordFFData *rd)
-{
- TRef trstr = lj_ir_tostr(J, J->base[0]);
- TRef trpat = lj_ir_tostr(J, J->base[1]);
- TRef trlen = emitir(IRTI(IR_FLOAD), trstr, IRFL_STR_LEN);
- TRef tr0 = lj_ir_kint(J, 0);
- TRef trstart;
- GCstr *str = argv2str(J, &rd->argv[0]);
- GCstr *pat = argv2str(J, &rd->argv[1]);
- int32_t start;
- J->needsnap = 1;
- if (tref_isnil(J->base[2])) {
- trstart = lj_ir_kint(J, 1);
- start = 1;
- } else {
- trstart = lj_opt_narrow_toint(J, J->base[2]);
- start = argv2int(J, &rd->argv[2]);
- }
- trstart = recff_string_start(J, str, &start, trstart, trlen, tr0);
- if ((MSize)start <= str->len) {
- emitir(IRTGI(IR_ULE), trstart, trlen);
- } else {
- emitir(IRTGI(IR_UGT), trstart, trlen);
-#if LJ_52
- J->base[0] = TREF_NIL;
- return;
-#else
- trstart = trlen;
- start = str->len;
-#endif
- }
- /* Fixed arg or no pattern matching chars? (Specialized to pattern string.) */
- if ((J->base[2] && tref_istruecond(J->base[3])) ||
- (emitir(IRTG(IR_EQ, IRT_STR), trpat, lj_ir_kstr(J, pat)),
- !lj_str_haspattern(pat))) { /* Search for fixed string. */
- TRef trsptr = emitir(IRT(IR_STRREF, IRT_PGC), trstr, trstart);
- TRef trpptr = emitir(IRT(IR_STRREF, IRT_PGC), trpat, tr0);
- TRef trslen = emitir(IRTI(IR_SUB), trlen, trstart);
- TRef trplen = emitir(IRTI(IR_FLOAD), trpat, IRFL_STR_LEN);
- TRef tr = lj_ir_call(J, IRCALL_lj_str_find, trsptr, trpptr, trslen, trplen);
- TRef trp0 = lj_ir_kkptr(J, NULL);
- if (lj_str_find(strdata(str)+(MSize)start, strdata(pat),
- str->len-(MSize)start, pat->len)) {
- TRef pos;
- emitir(IRTG(IR_NE, IRT_PGC), tr, trp0);
- pos = emitir(IRTI(IR_SUB), tr, emitir(IRT(IR_STRREF, IRT_PGC), trstr, tr0));
- J->base[0] = emitir(IRTI(IR_ADD), pos, lj_ir_kint(J, 1));
- J->base[1] = emitir(IRTI(IR_ADD), pos, trplen);
- rd->nres = 2;
- } else {
- emitir(IRTG(IR_EQ, IRT_PGC), tr, trp0);
- J->base[0] = TREF_NIL;
- }
- } else { /* Search for pattern. */
- recff_nyiu(J, rd);
- return;
- }
-}
-
-static void LJ_FASTCALL recff_string_format(jit_State *J, RecordFFData *rd)
-{
- TRef trfmt = lj_ir_tostr(J, J->base[0]);
- GCstr *fmt = argv2str(J, &rd->argv[0]);
- int arg = 1;
- TRef hdr, tr;
- FormatState fs;
- SFormat sf;
- /* Specialize to the format string. */
- emitir(IRTG(IR_EQ, IRT_STR), trfmt, lj_ir_kstr(J, fmt));
- tr = hdr = recff_bufhdr(J);
- lj_strfmt_init(&fs, strdata(fmt), fmt->len);
- while ((sf = lj_strfmt_parse(&fs)) != STRFMT_EOF) { /* Parse format. */
- TRef tra = sf == STRFMT_LIT ? 0 : J->base[arg++];
- TRef trsf = lj_ir_kint(J, (int32_t)sf);
- IRCallID id;
- switch (STRFMT_TYPE(sf)) {
- case STRFMT_LIT:
- tr = emitir(IRT(IR_BUFPUT, IRT_PGC), tr,
- lj_ir_kstr(J, lj_str_new(J->L, fs.str, fs.len)));
- break;
- case STRFMT_INT:
- id = IRCALL_lj_strfmt_putfnum_int;
- handle_int:
- if (!tref_isinteger(tra))
- goto handle_num;
- if (sf == STRFMT_INT) { /* Shortcut for plain %d. */
- tr = emitir(IRT(IR_BUFPUT, IRT_PGC), tr,
- emitir(IRT(IR_TOSTR, IRT_STR), tra, IRTOSTR_INT));
- } else {
-#if LJ_HASFFI
- tra = emitir(IRT(IR_CONV, IRT_U64), tra,
- (IRT_INT|(IRT_U64<<5)|IRCONV_SEXT));
- tr = lj_ir_call(J, IRCALL_lj_strfmt_putfxint, tr, trsf, tra);
- lj_needsplit(J);
-#else
- recff_nyiu(J, rd); /* Don't bother working around this NYI. */
- return;
-#endif
- }
- break;
- case STRFMT_UINT:
- id = IRCALL_lj_strfmt_putfnum_uint;
- goto handle_int;
- case STRFMT_NUM:
- id = IRCALL_lj_strfmt_putfnum;
- handle_num:
- tra = lj_ir_tonum(J, tra);
- tr = lj_ir_call(J, id, tr, trsf, tra);
- if (LJ_SOFTFP32) lj_needsplit(J);
- break;
- case STRFMT_STR:
- if (!tref_isstr(tra)) {
- recff_nyiu(J, rd); /* NYI: __tostring and non-string types for %s. */
- return;
- }
- if (sf == STRFMT_STR) /* Shortcut for plain %s. */
- tr = emitir(IRT(IR_BUFPUT, IRT_PGC), tr, tra);
- else if ((sf & STRFMT_T_QUOTED))
- tr = lj_ir_call(J, IRCALL_lj_strfmt_putquoted, tr, tra);
- else
- tr = lj_ir_call(J, IRCALL_lj_strfmt_putfstr, tr, trsf, tra);
- break;
- case STRFMT_CHAR:
- tra = lj_opt_narrow_toint(J, tra);
- if (sf == STRFMT_CHAR) /* Shortcut for plain %c. */
- tr = emitir(IRT(IR_BUFPUT, IRT_PGC), tr,
- emitir(IRT(IR_TOSTR, IRT_STR), tra, IRTOSTR_CHAR));
- else
- tr = lj_ir_call(J, IRCALL_lj_strfmt_putfchar, tr, trsf, tra);
- break;
- case STRFMT_PTR: /* NYI */
- case STRFMT_ERR:
- default:
- recff_nyiu(J, rd);
- return;
- }
- }
- J->base[0] = emitir(IRT(IR_BUFSTR, IRT_STR), tr, hdr);
-}
-
-/* -- Table library fast functions ---------------------------------------- */
-
-static void LJ_FASTCALL recff_table_insert(jit_State *J, RecordFFData *rd)
-{
- RecordIndex ix;
- ix.tab = J->base[0];
- ix.val = J->base[1];
- rd->nres = 0;
- if (tref_istab(ix.tab) && ix.val) {
- if (!J->base[2]) { /* Simple push: t[#t+1] = v */
- TRef trlen = lj_ir_call(J, IRCALL_lj_tab_len, ix.tab);
- GCtab *t = tabV(&rd->argv[0]);
- ix.key = emitir(IRTI(IR_ADD), trlen, lj_ir_kint(J, 1));
- settabV(J->L, &ix.tabv, t);
- setintV(&ix.keyv, lj_tab_len(t) + 1);
- ix.idxchain = 0;
- lj_record_idx(J, &ix); /* Set new value. */
- } else { /* Complex case: insert in the middle. */
- recff_nyiu(J, rd);
- return;
- }
- } /* else: Interpreter will throw. */
-}
-
-static void LJ_FASTCALL recff_table_concat(jit_State *J, RecordFFData *rd)
-{
- TRef tab = J->base[0];
- if (tref_istab(tab)) {
- TRef sep = !tref_isnil(J->base[1]) ?
- lj_ir_tostr(J, J->base[1]) : lj_ir_knull(J, IRT_STR);
- TRef tri = (J->base[1] && !tref_isnil(J->base[2])) ?
- lj_opt_narrow_toint(J, J->base[2]) : lj_ir_kint(J, 1);
- TRef tre = (J->base[1] && J->base[2] && !tref_isnil(J->base[3])) ?
- lj_opt_narrow_toint(J, J->base[3]) :
- lj_ir_call(J, IRCALL_lj_tab_len, tab);
- TRef hdr = recff_bufhdr(J);
- TRef tr = lj_ir_call(J, IRCALL_lj_buf_puttab, hdr, tab, sep, tri, tre);
- emitir(IRTG(IR_NE, IRT_PTR), tr, lj_ir_kptr(J, NULL));
- J->base[0] = emitir(IRT(IR_BUFSTR, IRT_STR), tr, hdr);
- } /* else: Interpreter will throw. */
- UNUSED(rd);
-}
-
-static void LJ_FASTCALL recff_table_new(jit_State *J, RecordFFData *rd)
-{
- TRef tra = lj_opt_narrow_toint(J, J->base[0]);
- TRef trh = lj_opt_narrow_toint(J, J->base[1]);
- J->base[0] = lj_ir_call(J, IRCALL_lj_tab_new_ah, tra, trh);
- UNUSED(rd);
-}
-
-static void LJ_FASTCALL recff_table_clear(jit_State *J, RecordFFData *rd)
-{
- TRef tr = J->base[0];
- if (tref_istab(tr)) {
- rd->nres = 0;
- lj_ir_call(J, IRCALL_lj_tab_clear, tr);
- J->needsnap = 1;
- } /* else: Interpreter will throw. */
-}
-
-/* -- I/O library fast functions ------------------------------------------ */
-
-/* Get FILE* for I/O function. Any I/O error aborts recording, so there's
-** no need to encode the alternate cases for any of the guards.
-*/
-static TRef recff_io_fp(jit_State *J, TRef *udp, int32_t id)
-{
- TRef tr, ud, fp;
- if (id) { /* io.func() */
-#if LJ_GC64
- /* TODO: fix ARM32 asm_fload(), so we can use this for all archs. */
- ud = lj_ir_ggfload(J, IRT_UDATA, GG_OFS(g.gcroot[id]));
-#else
- tr = lj_ir_kptr(J, &J2G(J)->gcroot[id]);
- ud = emitir(IRT(IR_XLOAD, IRT_UDATA), tr, 0);
-#endif
- } else { /* fp:method() */
- ud = J->base[0];
- if (!tref_isudata(ud))
- lj_trace_err(J, LJ_TRERR_BADTYPE);
- tr = emitir(IRT(IR_FLOAD, IRT_U8), ud, IRFL_UDATA_UDTYPE);
- emitir(IRTGI(IR_EQ), tr, lj_ir_kint(J, UDTYPE_IO_FILE));
- }
- *udp = ud;
- fp = emitir(IRT(IR_FLOAD, IRT_PTR), ud, IRFL_UDATA_FILE);
- emitir(IRTG(IR_NE, IRT_PTR), fp, lj_ir_knull(J, IRT_PTR));
- return fp;
-}
-
-static void LJ_FASTCALL recff_io_write(jit_State *J, RecordFFData *rd)
-{
- TRef ud, fp = recff_io_fp(J, &ud, rd->data);
- TRef zero = lj_ir_kint(J, 0);
- TRef one = lj_ir_kint(J, 1);
- ptrdiff_t i = rd->data == 0 ? 1 : 0;
- for (; J->base[i]; i++) {
- TRef str = lj_ir_tostr(J, J->base[i]);
- TRef buf = emitir(IRT(IR_STRREF, IRT_PGC), str, zero);
- TRef len = emitir(IRTI(IR_FLOAD), str, IRFL_STR_LEN);
- if (tref_isk(len) && IR(tref_ref(len))->i == 1) {
- IRIns *irs = IR(tref_ref(str));
- TRef tr = (irs->o == IR_TOSTR && irs->op2 == IRTOSTR_CHAR) ?
- irs->op1 :
- emitir(IRT(IR_XLOAD, IRT_U8), buf, IRXLOAD_READONLY);
- tr = lj_ir_call(J, IRCALL_fputc, tr, fp);
- if (results_wanted(J) != 0) /* Check result only if not ignored. */
- emitir(IRTGI(IR_NE), tr, lj_ir_kint(J, -1));
- } else {
- TRef tr = lj_ir_call(J, IRCALL_fwrite, buf, one, len, fp);
- if (results_wanted(J) != 0) /* Check result only if not ignored. */
- emitir(IRTGI(IR_EQ), tr, len);
- }
- }
- J->base[0] = LJ_52 ? ud : TREF_TRUE;
-}
-
-static void LJ_FASTCALL recff_io_flush(jit_State *J, RecordFFData *rd)
-{
- TRef ud, fp = recff_io_fp(J, &ud, rd->data);
- TRef tr = lj_ir_call(J, IRCALL_fflush, fp);
- if (results_wanted(J) != 0) /* Check result only if not ignored. */
- emitir(IRTGI(IR_EQ), tr, lj_ir_kint(J, 0));
- J->base[0] = TREF_TRUE;
-}
-
-/* -- Debug library fast functions ---------------------------------------- */
-
-static void LJ_FASTCALL recff_debug_getmetatable(jit_State *J, RecordFFData *rd)
-{
- GCtab *mt;
- TRef mtref;
- TRef tr = J->base[0];
- if (tref_istab(tr)) {
- mt = tabref(tabV(&rd->argv[0])->metatable);
- mtref = emitir(IRT(IR_FLOAD, IRT_TAB), tr, IRFL_TAB_META);
- } else if (tref_isudata(tr)) {
- mt = tabref(udataV(&rd->argv[0])->metatable);
- mtref = emitir(IRT(IR_FLOAD, IRT_TAB), tr, IRFL_UDATA_META);
- } else {
- mt = tabref(basemt_obj(J2G(J), &rd->argv[0]));
- J->base[0] = mt ? lj_ir_ktab(J, mt) : TREF_NIL;
- return;
- }
- emitir(IRTG(mt ? IR_NE : IR_EQ, IRT_TAB), mtref, lj_ir_knull(J, IRT_TAB));
- J->base[0] = mt ? mtref : TREF_NIL;
-}
-
-/* -- Record calls to fast functions -------------------------------------- */
-
-#include "lj_recdef.h"
-
-static uint32_t recdef_lookup(GCfunc *fn)
-{
- if (fn->c.ffid < sizeof(recff_idmap)/sizeof(recff_idmap[0]))
- return recff_idmap[fn->c.ffid];
- else
- return 0;
-}
-
-/* Record entry to a fast function or C function. */
-void lj_ffrecord_func(jit_State *J)
-{
- RecordFFData rd;
- uint32_t m = recdef_lookup(J->fn);
- rd.data = m & 0xff;
- rd.nres = 1; /* Default is one result. */
- rd.argv = J->L->base;
- J->base[J->maxslot] = 0; /* Mark end of arguments. */
- (recff_func[m >> 8])(J, &rd); /* Call recff_* handler. */
- if (rd.nres >= 0) {
- if (J->postproc == LJ_POST_NONE) J->postproc = LJ_POST_FFRETRY;
- lj_record_ret(J, 0, rd.nres);
- }
-}
-
-#undef IR
-#undef emitir
-
-#endif
--
cgit v1.2.3