| blo target
|.endmacro
|
+|.macro init_constants
+| movn TISNIL, #0
+| movz TISNUM, #(LJ_TISNUM>>1)&0xffff, lsl #48
+| movz TISNUMhi, #(LJ_TISNUM>>1)&0xffff, lsl #16
+|.endmacro
+|
|.macro mov_false, reg; movn reg, #0x8000, lsl #32; .endmacro
|.macro mov_true, reg; movn reg, #0x0001, lsl #48; .endmacro
+|.macro mov_nil, reg; mov reg, TISNIL; .endmacro
+|.macro cmp_nil, reg; cmp reg, TISNIL; .endmacro
+|.macro add_TISNUM, dst, src; add dst, src, TISNUM; .endmacro
|
#define GL_J(field) (GG_G2J + (int)offsetof(jit_State, field))
|
| add fp, CARG1, # SAVE_FP_LR_
| mov sp, CARG1
| ldr L, SAVE_L
- | movz TISNUM, #(LJ_TISNUM>>1)&0xffff, lsl #48
- | movz TISNUMhi, #(LJ_TISNUM>>1)&0xffff, lsl #16
- | movn TISNIL, #0
+ | init_constants
| ldr GL, L->glref // Setup pointer to global state.
|->vm_unwind_ff_eh: // Landing pad for external unwinder.
| mov RC, #16 // 2 results: false + error message.
| str L, GL->cur_L
| mov RA, BASE
| ldp BASE, CARG1, L->base
- | movz TISNUM, #(LJ_TISNUM>>1)&0xffff, lsl #48
- | movz TISNUMhi, #(LJ_TISNUM>>1)&0xffff, lsl #16
+ | init_constants
| ldr PC, [BASE, FRAME_PC]
| strb wzr, L->status
- | movn TISNIL, #0
| sub RC, CARG1, BASE
| ands CARG1, PC, #FRAME_TYPE
| add RC, RC, #8
|3: // Entry point for vm_cpcall/vm_resume (BASE = base, PC = ftype).
| str L, GL->cur_L
| ldp RB, CARG1, L->base // RB = old base (for vmeta_call).
- | movz TISNUM, #(LJ_TISNUM>>1)&0xffff, lsl #48
- | movz TISNUMhi, #(LJ_TISNUM>>1)&0xffff, lsl #16
| add PC, PC, BASE
- | movn TISNIL, #0
+ | init_constants
| sub PC, PC, RB // PC = frame delta + frame type
| sub NARGS8:RC, CARG1, BASE
| st_vmstate ST_INTERP
| b >1
|
|->vmeta_tgetb: // RB = table, RC = index
- | add RC, RC, TISNUM
+ | add_TISNUM RC, RC
| add CARG2, BASE, RB, lsl #3
| add CARG3, sp, TMPDofs
| str RC, TMPD
| sxtw CARG2, TMP1w
| bl extern lj_tab_getinth // (GCtab *t, int32_t key)
| // Returns cTValue * or NULL.
- | mov TMP0, TISNIL
+ | mov_nil TMP0
| cbz CRET1, ->BC_TGETR_Z
| ldr TMP0, [CRET1]
| b ->BC_TGETR_Z
| b >1
|
|->vmeta_tsetb: // RB = table, RC = index
- | add RC, RC, TISNUM
+ | add_TISNUM RC, RC
| add CARG2, BASE, RB, lsl #3
| add CARG3, sp, TMPDofs
| str RC, TMPD
|1: // Field metatable must be at same offset for GCtab and GCudata!
| ldr TAB:RB, TAB:CARG1->metatable
|2:
- | mov CARG1, TISNIL
+ | mov_nil CARG1
| ldr STR:RC, GL->gcroot[GCROOT_MMNAME+MM_metatable]
| cbz TAB:RB, ->fff_restv
| ldr TMP1w, TAB:RB->hmask
| movk CARG1, #(LJ_TTAB>>1)&0xffff, lsl #48
| b ->fff_restv
|5:
- | cmp TMP0, TISNIL
+ | cmp_nil TMP0
| bne ->fff_restv
| b <4
|
| cbnz TAB:CARG2, ->fff_fallback
#endif
| mov RC, #(3+1)*8
- | stp CARG1, TISNIL, [BASE, #-8]
- | str CFUNC:CARG4, [BASE, #-16]
+ | stp CFUNC:CARG4, CARG1, [BASE, #-16]
+ | str TISNIL, [BASE]
| b ->fff_res
|
|.ffunc_2 ipairs_aux
| add CARG2w, CARG2w, #1
| cmp CARG2w, TMP1w
| ldr PC, [BASE, FRAME_PC]
- | add TMP2, CARG2, TISNUM
+ | add_TISNUM TMP2, CARG2
| mov RC, #(0+1)*8
| str TMP2, [BASE, #-16]
| bhs >2 // Not in array part?
| ldr TMP0, [CARG3, CARG2, lsl #3]
|1:
| mov TMP1, #(2+1)*8
- | cmp TMP0, TISNIL
+ | cmp_nil TMP0
| str TMP0, [BASE, #-8]
| csel RC, RC, TMP1, eq
| b ->fff_res
| cbnz TAB:CARG2, ->fff_fallback
#endif
| mov RC, #(3+1)*8
- | stp CARG1, TISNUM, [BASE, #-8]
- | str CFUNC:CARG4, [BASE, #-16]
+ | stp CFUNC:CARG4, CARG1, [BASE, #-16]
+ | str TISNUM, [BASE]
| b ->fff_res
|
|//-- Base library: catch errors ----------------------------------------
| eor CARG2w, CARG1w, CARG1w, asr #31
| movz CARG3, #0x41e0, lsl #48 // 2^31.
| subs CARG1w, CARG2w, CARG1w, asr #31
- | add CARG1, CARG1, TISNUM
+ | add_TISNUM CARG1, CARG1
| csel CARG1, CARG1, CARG3, pl
| // Fallthrough.
|
| ldr PC, [BASE, FRAME_PC]
| str d0, [BASE, #-16]
| mov RC, #(2+1)*8
- | add CARG2, CARG2, TISNUM
+ | add_TISNUM CARG2, CARG2
| str CARG2, [BASE, #-8]
| b ->fff_res
|
| bne ->fff_fallback
| ldrb TMP0w, STR:CARG1[1] // Access is always ok (NUL at end).
| ldr CARG3w, STR:CARG1->len
- | add TMP0, TMP0, TISNUM
+ | add_TISNUM TMP0, TMP0
| str TMP0, [BASE, #-16]
| mov RC, #(0+1)*8
| cbz CARG3, ->fff_res
|.ffunc_bit tobit
| mov TMP0w, CARG1w
|9: // Label reused by .ffunc_bit_op users.
- | add CARG1, TMP0, TISNUM
+ | add_TISNUM CARG1, TMP0
| b ->fff_restv
|
|.ffunc_bit bswap
| rev TMP0w, CARG1w
- | add CARG1, TMP0, TISNUM
+ | add_TISNUM CARG1, TMP0
| b ->fff_restv
|
|.ffunc_bit bnot
| mvn TMP0w, CARG1w
- | add CARG1, TMP0, TISNUM
+ | add_TISNUM CARG1, TMP0
| b ->fff_restv
|
|.macro .ffunc_bit_sh, name, ins, shmod
| checkint CARG1, ->vm_tobit_fb
|2:
| ins TMP0w, CARG1w, TMP1w
- | add CARG1, TMP0, TISNUM
+ | add_TISNUM CARG1, TMP0
| b ->fff_restv
|.endmacro
|
| and CARG3, CARG3, #LJ_GCVMASK
| beq >2
|1: // Move results down.
- | ldr CARG1, [RA]
- | add RA, RA, #8
+ | ldr CARG1, [RA], #8
| subs RB, RB, #8
| str CARG1, [BASE, RC, lsl #3]
| add RC, RC, #1
|.if JIT
| ldr L, SAVE_L
|1:
- | movz TISNUM, #(LJ_TISNUM>>1)&0xffff, lsl #48
- | movz TISNUMhi, #(LJ_TISNUM>>1)&0xffff, lsl #16
- | movn TISNIL, #0
+ | init_constants
| cmn CARG1w, #LUA_ERRERR
| bhs >9 // Check for error from exit.
| ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
| bl extern lj_ccallback_enter // (CTState *cts, void *cf)
| // Returns lua_State *.
| ldp BASE, RC, L:CRET1->base
- | movz TISNUM, #(LJ_TISNUM>>1)&0xffff, lsl #48
- | movz TISNUMhi, #(LJ_TISNUM>>1)&0xffff, lsl #16
- | movn TISNIL, #0
+ | init_constants
| mov L, CRET1
| ldr LFUNC:CARG3, [BASE, FRAME_FUNC]
| sub RC, RC, BASE
| bne >5
| negs TMP0w, TMP0w
| movz CARG3, #0x41e0, lsl #48 // 2^31.
- | add TMP0, TMP0, TISNUM
+ | add_TISNUM TMP0, TMP0
| csel TMP0, TMP0, CARG3, vc
|5:
| str TMP0, [BASE, RA, lsl #3]
| bne >2
| ldr CARG1w, STR:CARG1->len
|1:
- | add CARG1, CARG1, TISNUM
+ | add_TISNUM CARG1, CARG1
| str CARG1, [BASE, RA, lsl #3]
| ins_next
|
| intins CARG1w, CARG1w, CARG2w
| ins_arithfallback bvs
|.endif
- | add CARG1, CARG1, TISNUM
+ | add_TISNUM CARG1, CARG1
| str CARG1, [BASE, RA, lsl #3]
|4:
| ins_next
case BC_KSHORT:
| // RA = dst, RC = int16_literal
| sxth RCw, RCw
- | add TMP0, RC, TISNUM
+ | add_TISNUM TMP0, RC
| str TMP0, [BASE, RA, lsl #3]
| ins_next
break;
| cmp TMP1w, CARG1w // In array part?
| bhs ->vmeta_tgetv
| ldr TMP0, [CARG3]
- | cmp TMP0, TISNIL
+ | cmp_nil TMP0
| beq >5
|1:
| str TMP0, [BASE, RA, lsl #3]
| ldr NODE:CARG3, NODE:CARG3->next
| cmp CARG1, CARG4
| bne >4
- | cmp TMP0, TISNIL
+ | cmp_nil TMP0
| beq >5
|3:
| str TMP0, [BASE, RA, lsl #3]
|4: // Follow hash chain.
| cbnz NODE:CARG3, <1
| // End of hash chain: key not found, nil result.
- | mov TMP0, TISNIL
+ | mov_nil TMP0
|
|5: // Check for __index if table value is nil.
| ldr TAB:CARG1, TAB:CARG2->metatable
| cmp RCw, CARG1w // In array part?
| bhs ->vmeta_tgetb
| ldr TMP0, [CARG3]
- | cmp TMP0, TISNIL
+ | cmp_nil TMP0
| beq >5
|1:
| str TMP0, [BASE, RA, lsl #3]
| ldr TMP1, [CARG3]
| ldr TMP0, [BASE, RA, lsl #3]
| ldrb TMP2w, TAB:CARG2->marked
- | cmp TMP1, TISNIL // Previous value is nil?
+ | cmp_nil TMP1 // Previous value is nil?
| beq >5
|1:
| str TMP0, [CARG3]
| cmp CARG1, CARG4
| bne >5
| ldr TMP0, [BASE, RA, lsl #3]
- | cmp TMP1, TISNIL // Previous value is nil?
+ | cmp_nil TMP1 // Previous value is nil?
| beq >4
|2:
| str TMP0, NODE:CARG3->val
| ldr TMP1, [CARG3]
| ldr TMP0, [BASE, RA, lsl #3]
| ldrb TMP2w, TAB:CARG2->marked
- | cmp TMP1, TISNIL // Previous value is nil?
+ | cmp_nil TMP1 // Previous value is nil?
| beq >5
|1:
| str TMP0, [CARG3]
|->BC_CALL_Z:
| mov RB, BASE // Save old BASE for vmeta_call.
| add BASE, BASE, RA, lsl #3
- | ldr CARG3, [BASE]
+ | ldr CARG3, [BASE], #16
| sub NARGS8:RC, NARGS8:RC, #8
- | add BASE, BASE, #16
| checkfunc CARG3, ->vmeta_call
| ins_call
break;
| // RA = base, (RB = 0,) RC = (nargs+1)*8
|->BC_CALLT1_Z:
| add RA, BASE, RA, lsl #3
- | ldr TMP1, [RA]
+ | ldr TMP1, [RA], #16
| sub NARGS8:RC, NARGS8:RC, #8
- | add RA, RA, #16
| checktp CARG3, TMP1, LJ_TFUNC, ->vmeta_callt
| ldr PC, [BASE, FRAME_PC]
|->BC_CALLT2_Z:
| add CARG3, CARG2, CARG1, lsl #3
| bhs >5 // Index points after array part?
| ldr TMP0, [CARG3]
- | cmp TMP0, TISNIL
+ | cmp_nil TMP0
| cinc CARG1, CARG1, eq // Skip holes in array part.
| beq <1
- | add CARG1, CARG1, TISNUM
+ | add_TISNUM CARG1, CARG1
| stp CARG1, TMP0, [RA]
| add CARG1, CARG1, #1
|3:
| add NODE:CARG3, NODE:RB, CARG1, lsl #3 // node = tab->node + idx*3*8
| bhi <4
| ldp TMP0, CARG1, NODE:CARG3->val
- | cmp TMP0, TISNIL
+ | cmp_nil TMP0
| add RC, RC, #1
| beq <6 // Skip holes in hash part.
| stp CARG1, TMP0, [RA]
| checkfunc CFUNC:CARG1, >5
| asr TMP0, TAB:CARG3, #47
| ldrb TMP1w, CFUNC:CARG1->ffid
- | cmn TMP0, #-LJ_TTAB
- | ccmp CARG4, TISNIL, #0, eq
+ | cmp_nil CARG4
+ | ccmn TMP0, #-LJ_TTAB, #0, eq
| ccmp TMP1w, #FF_next_N, #0, eq
| bne >5
| mov TMP0w, #0xfffe7fff // LJ_KEYINDEX
| and RC, RC, #255
| // RA = base, RB = (nresults+1), RC = numparams
| ldr TMP1, [BASE, FRAME_PC]
- | add RC, BASE, RC, lsl #3
- | add RA, BASE, RA, lsl #3
- | add RC, RC, #FRAME_VARG
- | add TMP2, RA, RB, lsl #3
- | sub RC, RC, TMP1 // RC = vbase
- | // Note: RC may now be even _above_ BASE if nargs was < numparams.
+ | add TMP0, BASE, RC, lsl #3
+ | add RC, BASE, RA, lsl #3 // RC = destination
+ | add TMP0, TMP0, #FRAME_VARG
+ | add TMP2, RC, RB, lsl #3
+ | sub RA, TMP0, TMP1 // RA = vbase
+ | // Note: RA may now be even _above_ BASE if nargs was < numparams.
| sub TMP3, BASE, #16 // TMP3 = vtop
| cbz RB, >5
| sub TMP2, TMP2, #16
|1: // Copy vararg slots to destination slots.
- | cmp RC, TMP3
- | ldr TMP0, [RC], #8
- | csel TMP0, TMP0, TISNIL, lo
- | cmp RA, TMP2
- | str TMP0, [RA], #8
+ | cmp RA, TMP3
+ | ldr TMP0, [RA], #8
+ | csinv TMP0, TMP0, xzr, lo // TISNIL = ~xzr
+ | cmp RC, TMP2
+ | str TMP0, [RC], #8
| blo <1
|2:
| ins_next
|
|5: // Copy all varargs.
| ldr TMP0, L->maxstack
- | subs TMP2, TMP3, RC
+ | subs TMP2, TMP3, RA
| csel RB, xzr, TMP2, le // MULTRES = (max(vtop-vbase,0)+1)*8
| add RB, RB, #8
- | add TMP1, RA, TMP2
+ | add TMP1, RC, TMP2
| str RBw, SAVE_MULTRES
| ble <2 // Nothing to copy.
| cmp TMP1, TMP0
| bhi >7
|6:
- | ldr TMP0, [RC], #8
- | str TMP0, [RA], #8
- | cmp RC, TMP3
+ | ldr TMP0, [RA], #8
+ | str TMP0, [RC], #8
+ | cmp RA, TMP3
| blo <6
| b <2
|
|7: // Grow stack for varargs.
| lsr CARG2, TMP2, #3
- | stp BASE, RA, L->base
+ | stp BASE, RC, L->base
| mov CARG1, L
- | sub RC, RC, BASE // Need delta, because BASE may change.
+ | sub RA, RA, BASE // Need delta, because BASE may change.
| str PC, SAVE_PC
| bl extern lj_state_growstack // (lua_State *L, int n)
- | ldp BASE, RA, L->base
- | add RC, BASE, RC
+ | ldp BASE, RC, L->base
+ | add RA, BASE, RA
| sub TMP3, BASE, #16
| b <6
break;
} else {
| adds CARG1w, CARG1w, CARG3w
| bvs >2
- | add TMP0, CARG1, TISNUM
+ | add_TISNUM TMP0, CARG1
| tbnz CARG3w, #31, >4
| cmp CARG1w, CARG2w
}
| // RA = base, RC = target
| ldr CARG1, [BASE, RA, lsl #3]
| add TMP1, BASE, RA, lsl #3
- | cmp CARG1, TISNIL
+ | cmp_nil CARG1
| beq >1 // Stop if iterator returned nil.
if (op == BC_JITERL) {
| str CARG1, [TMP1, #-8]
projects / thirdparty / LuaJIT.git / commitdiff
