diff options
Diffstat (limited to 'build/vc++/libs/LuaJIT-2.0.5/src/lj_emit_mips.h')
| -rw-r--r-- | build/vc++/libs/LuaJIT-2.0.5/src/lj_emit_mips.h | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/build/vc++/libs/LuaJIT-2.0.5/src/lj_emit_mips.h b/build/vc++/libs/LuaJIT-2.0.5/src/lj_emit_mips.h deleted file mode 100644 index ed62608..0000000 --- a/build/vc++/libs/LuaJIT-2.0.5/src/lj_emit_mips.h +++ /dev/null @@ -1,211 +0,0 @@ -/* -** MIPS instruction emitter. -** Copyright (C) 2005-2017 Mike Pall. See Copyright Notice in luajit.h -*/ - -/* -- 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 ((as->flags & JIT_F_MIPS32R2)) { - 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); - } -} - -/* -- 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, int32_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) { - int32_t delta = i - (ra_iskref(ref) ? ra_krefk(as, ref) : IR(ref)->i); - if (checki16(delta)) { - emit_tsi(as, MIPSI_ADDIU, 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)) { - int32_t jgl = i32ptr(J2G(as->J)); - if ((uint32_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)); - } -} - -#define emit_loada(as, r, addr) emit_loadi(as, (r), i32ptr((addr))) - -static Reg ra_allock(ASMState *as, int32_t k, RegSet allow); -static void ra_allockreg(ASMState *as, int32_t k, Reg r); - -/* Get/set from constant pointer. */ -static void emit_lsptr(ASMState *as, MIPSIns mi, Reg r, void *p, RegSet allow) -{ - int32_t jgl = i32ptr(J2G(as->J)); - int32_t i = i32ptr(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); -} - -#define emit_loadn(as, r, tv) \ - emit_lsptr(as, MIPSI_LDC1, ((r) & 31), (void *)(tv), RSET_GPR) - -/* 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_LW, (r), (int32_t)offsetof(global_State, field)) -#define emit_setgl(as, r, field) \ - emit_lsglptr(as, MIPSI_SW, (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) -{ - MCode *p = as->mcp; - *--p = MIPSI_NOP; - if ((((uintptr_t)target ^ (uintptr_t)p) >> 28) == 0) - *--p = MIPSI_JAL | (((uintptr_t)target >>2) & 0x03ffffffu); - else /* Target out of range: need indirect call. */ - *--p = MIPSI_JALR | MIPSF_S(RID_CFUNCADDR); - as->mcp = p; - ra_allockreg(as, i32ptr(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 from stack slot. */ -static void emit_spload(ASMState *as, IRIns *ir, Reg r, int32_t ofs) -{ - if (r < RID_MAX_GPR) - emit_tsi(as, MIPSI_LW, r, RID_SP, ofs); - else - emit_tsi(as, irt_isnum(ir->t) ? MIPSI_LDC1 : MIPSI_LWC1, - (r & 31), RID_SP, ofs); -} - -/* Generic store of register to stack slot. */ -static void emit_spstore(ASMState *as, IRIns *ir, Reg r, int32_t ofs) -{ - if (r < RID_MAX_GPR) - emit_tsi(as, MIPSI_SW, r, RID_SP, ofs); - else - emit_tsi(as, irt_isnum(ir->t) ? MIPSI_SDC1 : MIPSI_SWC1, - (r&31), RID_SP, 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_ADDIU, r, r, ofs); - } -} - -#define emit_spsub(as, ofs) emit_addptr(as, RID_SP, -(ofs)) - |