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-rw-r--r--lib/LuaJIT/src/lj_emit_mips.h295
1 files changed, 0 insertions, 295 deletions
diff --git a/lib/LuaJIT/src/lj_emit_mips.h b/lib/LuaJIT/src/lj_emit_mips.h
deleted file mode 100644
index bb6593a..0000000
--- a/lib/LuaJIT/src/lj_emit_mips.h
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
-** MIPS instruction emitter.
-** Copyright (C) 2005-2017 Mike Pall. See Copyright Notice in luajit.h
-*/
-
-#if LJ_64
-static intptr_t get_k64val(IRIns *ir)
-{
- if (ir->o == IR_KINT64) {
- return (intptr_t)ir_kint64(ir)->u64;
- } else if (ir->o == IR_KGC) {
- return (intptr_t)ir_kgc(ir);
- } else if (ir->o == IR_KPTR || ir->o == IR_KKPTR) {
- return (intptr_t)ir_kptr(ir);
- } else if (LJ_SOFTFP && ir->o == IR_KNUM) {
- return (intptr_t)ir_knum(ir)->u64;
- } else {
- lua_assert(ir->o == IR_KINT || ir->o == IR_KNULL);
- return ir->i; /* Sign-extended. */
- }
-}
-#endif
-
-#if LJ_64
-#define get_kval(ir) get_k64val(ir)
-#else
-#define get_kval(ir) ((ir)->i)
-#endif
-
-/* -- Emit basic instructions --------------------------------------------- */
-
-static void emit_dst(ASMState *as, MIPSIns mi, Reg rd, Reg rs, Reg rt)
-{
- *--as->mcp = mi | MIPSF_D(rd) | MIPSF_S(rs) | MIPSF_T(rt);
-}
-
-static void emit_dta(ASMState *as, MIPSIns mi, Reg rd, Reg rt, uint32_t a)
-{
- *--as->mcp = mi | MIPSF_D(rd) | MIPSF_T(rt) | MIPSF_A(a);
-}
-
-#define emit_ds(as, mi, rd, rs) emit_dst(as, (mi), (rd), (rs), 0)
-#define emit_tg(as, mi, rt, rg) emit_dst(as, (mi), (rg)&31, 0, (rt))
-
-static void emit_tsi(ASMState *as, MIPSIns mi, Reg rt, Reg rs, int32_t i)
-{
- *--as->mcp = mi | MIPSF_T(rt) | MIPSF_S(rs) | (i & 0xffff);
-}
-
-#define emit_ti(as, mi, rt, i) emit_tsi(as, (mi), (rt), 0, (i))
-#define emit_hsi(as, mi, rh, rs, i) emit_tsi(as, (mi), (rh) & 31, (rs), (i))
-
-static void emit_fgh(ASMState *as, MIPSIns mi, Reg rf, Reg rg, Reg rh)
-{
- *--as->mcp = mi | MIPSF_F(rf&31) | MIPSF_G(rg&31) | MIPSF_H(rh&31);
-}
-
-#define emit_fg(as, mi, rf, rg) emit_fgh(as, (mi), (rf), (rg), 0)
-
-static void emit_rotr(ASMState *as, Reg dest, Reg src, Reg tmp, uint32_t shift)
-{
- if (LJ_64 || (as->flags & JIT_F_MIPSXXR2)) {
- emit_dta(as, MIPSI_ROTR, dest, src, shift);
- } else {
- emit_dst(as, MIPSI_OR, dest, dest, tmp);
- emit_dta(as, MIPSI_SLL, dest, src, (-shift)&31);
- emit_dta(as, MIPSI_SRL, tmp, src, shift);
- }
-}
-
-#if LJ_64
-static void emit_tsml(ASMState *as, MIPSIns mi, Reg rt, Reg rs, uint32_t msb,
- uint32_t lsb)
-{
- *--as->mcp = mi | MIPSF_T(rt) | MIPSF_S(rs) | MIPSF_M(msb) | MIPSF_L(lsb);
-}
-#endif
-
-/* -- Emit loads/stores --------------------------------------------------- */
-
-/* Prefer rematerialization of BASE/L from global_State over spills. */
-#define emit_canremat(ref) ((ref) <= REF_BASE)
-
-/* Try to find a one step delta relative to another constant. */
-static int emit_kdelta1(ASMState *as, Reg t, intptr_t i)
-{
- RegSet work = ~as->freeset & RSET_GPR;
- while (work) {
- Reg r = rset_picktop(work);
- IRRef ref = regcost_ref(as->cost[r]);
- lua_assert(r != t);
- if (ref < ASMREF_L) {
- intptr_t delta = (intptr_t)((uintptr_t)i -
- (uintptr_t)(ra_iskref(ref) ? ra_krefk(as, ref) : get_kval(IR(ref))));
- if (checki16(delta)) {
- emit_tsi(as, MIPSI_AADDIU, t, r, delta);
- return 1;
- }
- }
- rset_clear(work, r);
- }
- return 0; /* Failed. */
-}
-
-/* Load a 32 bit constant into a GPR. */
-static void emit_loadi(ASMState *as, Reg r, int32_t i)
-{
- if (checki16(i)) {
- emit_ti(as, MIPSI_LI, r, i);
- } else {
- if ((i & 0xffff)) {
- intptr_t jgl = (intptr_t)(void *)J2G(as->J);
- if ((uintptr_t)(i-jgl) < 65536) {
- emit_tsi(as, MIPSI_ADDIU, r, RID_JGL, i-jgl-32768);
- return;
- } else if (emit_kdelta1(as, r, i)) {
- return;
- } else if ((i >> 16) == 0) {
- emit_tsi(as, MIPSI_ORI, r, RID_ZERO, i);
- return;
- }
- emit_tsi(as, MIPSI_ORI, r, r, i);
- }
- emit_ti(as, MIPSI_LUI, r, (i >> 16));
- }
-}
-
-#if LJ_64
-/* Load a 64 bit constant into a GPR. */
-static void emit_loadu64(ASMState *as, Reg r, uint64_t u64)
-{
- if (checki32((int64_t)u64)) {
- emit_loadi(as, r, (int32_t)u64);
- } else {
- uint64_t delta = u64 - (uint64_t)(void *)J2G(as->J);
- if (delta < 65536) {
- emit_tsi(as, MIPSI_DADDIU, r, RID_JGL, (int32_t)(delta-32768));
- } else if (emit_kdelta1(as, r, (intptr_t)u64)) {
- return;
- } else {
- if ((u64 & 0xffff)) {
- emit_tsi(as, MIPSI_ORI, r, r, u64 & 0xffff);
- }
- if (((u64 >> 16) & 0xffff)) {
- emit_dta(as, MIPSI_DSLL, r, r, 16);
- emit_tsi(as, MIPSI_ORI, r, r, (u64 >> 16) & 0xffff);
- emit_dta(as, MIPSI_DSLL, r, r, 16);
- } else {
- emit_dta(as, MIPSI_DSLL32, r, r, 0);
- }
- emit_loadi(as, r, (int32_t)(u64 >> 32));
- }
- /* TODO: There are probably more optimization opportunities. */
- }
-}
-
-#define emit_loada(as, r, addr) emit_loadu64(as, (r), u64ptr((addr)))
-#else
-#define emit_loada(as, r, addr) emit_loadi(as, (r), i32ptr((addr)))
-#endif
-
-static Reg ra_allock(ASMState *as, intptr_t k, RegSet allow);
-static void ra_allockreg(ASMState *as, intptr_t k, Reg r);
-
-/* Get/set from constant pointer. */
-static void emit_lsptr(ASMState *as, MIPSIns mi, Reg r, void *p, RegSet allow)
-{
- intptr_t jgl = (intptr_t)(J2G(as->J));
- intptr_t i = (intptr_t)(p);
- Reg base;
- if ((uint32_t)(i-jgl) < 65536) {
- i = i-jgl-32768;
- base = RID_JGL;
- } else {
- base = ra_allock(as, i-(int16_t)i, allow);
- }
- emit_tsi(as, mi, r, base, i);
-}
-
-#if LJ_64
-static void emit_loadk64(ASMState *as, Reg r, IRIns *ir)
-{
- const uint64_t *k = &ir_k64(ir)->u64;
- Reg r64 = r;
- if (rset_test(RSET_FPR, r)) {
- r64 = RID_TMP;
- emit_tg(as, MIPSI_DMTC1, r64, r);
- }
- if ((uint32_t)((intptr_t)k-(intptr_t)J2G(as->J)) < 65536)
- emit_lsptr(as, MIPSI_LD, r64, (void *)k, 0);
- else
- emit_loadu64(as, r64, *k);
-}
-#else
-#define emit_loadk64(as, r, ir) \
- emit_lsptr(as, MIPSI_LDC1, ((r) & 31), (void *)&ir_knum((ir))->u64, RSET_GPR)
-#endif
-
-/* Get/set global_State fields. */
-static void emit_lsglptr(ASMState *as, MIPSIns mi, Reg r, int32_t ofs)
-{
- emit_tsi(as, mi, r, RID_JGL, ofs-32768);
-}
-
-#define emit_getgl(as, r, field) \
- emit_lsglptr(as, MIPSI_AL, (r), (int32_t)offsetof(global_State, field))
-#define emit_setgl(as, r, field) \
- emit_lsglptr(as, MIPSI_AS, (r), (int32_t)offsetof(global_State, field))
-
-/* Trace number is determined from per-trace exit stubs. */
-#define emit_setvmstate(as, i) UNUSED(i)
-
-/* -- Emit control-flow instructions -------------------------------------- */
-
-/* Label for internal jumps. */
-typedef MCode *MCLabel;
-
-/* Return label pointing to current PC. */
-#define emit_label(as) ((as)->mcp)
-
-static void emit_branch(ASMState *as, MIPSIns mi, Reg rs, Reg rt, MCode *target)
-{
- MCode *p = as->mcp;
- ptrdiff_t delta = target - p;
- lua_assert(((delta + 0x8000) >> 16) == 0);
- *--p = mi | MIPSF_S(rs) | MIPSF_T(rt) | ((uint32_t)delta & 0xffffu);
- as->mcp = p;
-}
-
-static void emit_jmp(ASMState *as, MCode *target)
-{
- *--as->mcp = MIPSI_NOP;
- emit_branch(as, MIPSI_B, RID_ZERO, RID_ZERO, (target));
-}
-
-static void emit_call(ASMState *as, void *target, int needcfa)
-{
- MCode *p = as->mcp;
- *--p = MIPSI_NOP;
- if ((((uintptr_t)target ^ (uintptr_t)p) >> 28) == 0) {
- *--p = (((uintptr_t)target & 1) ? MIPSI_JALX : MIPSI_JAL) |
- (((uintptr_t)target >>2) & 0x03ffffffu);
- } else { /* Target out of range: need indirect call. */
- *--p = MIPSI_JALR | MIPSF_S(RID_CFUNCADDR);
- needcfa = 1;
- }
- as->mcp = p;
- if (needcfa) ra_allockreg(as, (intptr_t)target, RID_CFUNCADDR);
-}
-
-/* -- Emit generic operations --------------------------------------------- */
-
-#define emit_move(as, dst, src) \
- emit_ds(as, MIPSI_MOVE, (dst), (src))
-
-/* Generic move between two regs. */
-static void emit_movrr(ASMState *as, IRIns *ir, Reg dst, Reg src)
-{
- if (dst < RID_MAX_GPR)
- emit_move(as, dst, src);
- else
- emit_fg(as, irt_isnum(ir->t) ? MIPSI_MOV_D : MIPSI_MOV_S, dst, src);
-}
-
-/* Generic load of register with base and (small) offset address. */
-static void emit_loadofs(ASMState *as, IRIns *ir, Reg r, Reg base, int32_t ofs)
-{
- if (r < RID_MAX_GPR)
- emit_tsi(as, irt_is64(ir->t) ? MIPSI_LD : MIPSI_LW, r, base, ofs);
- else
- emit_tsi(as, irt_isnum(ir->t) ? MIPSI_LDC1 : MIPSI_LWC1,
- (r & 31), base, ofs);
-}
-
-/* Generic store of register with base and (small) offset address. */
-static void emit_storeofs(ASMState *as, IRIns *ir, Reg r, Reg base, int32_t ofs)
-{
- if (r < RID_MAX_GPR)
- emit_tsi(as, irt_is64(ir->t) ? MIPSI_SD : MIPSI_SW, r, base, ofs);
- else
- emit_tsi(as, irt_isnum(ir->t) ? MIPSI_SDC1 : MIPSI_SWC1,
- (r&31), base, ofs);
-}
-
-/* Add offset to pointer. */
-static void emit_addptr(ASMState *as, Reg r, int32_t ofs)
-{
- if (ofs) {
- lua_assert(checki16(ofs));
- emit_tsi(as, MIPSI_AADDIU, r, r, ofs);
- }
-}
-
-#define emit_spsub(as, ofs) emit_addptr(as, RID_SP, -(ofs))
-
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-06 11:04:04 +0000