|
|
| Bool OptIC6(CIntermediateCode *tmpi) |
| { |
| CIntermediateCode *tmpil1; |
| if (tmpi->ic_code<IC_IMM_I64 || !(tmpil1=OptLag1(tmpi))) |
| return FALSE; |
| if (tmpil1->ic_code==IC_ADD_CONST && tmpi->ic_code==IC_DEREF && |
| tmpi->ic_flags&ICF_ARG1_WAS_STK && tmpi->arg1.type&MDF_REG && |
| tmpil1->res.type&MDF_REG && I32_MIN<=tmpil1->ic_data<=I32_MAX && |
| !Bt(&cmp.non_ptr_vars_mask,tmpil1->arg1.reg)) { |
| if (tmpil1->arg1.type&MDF_REG) { |
| tmpi->ic_flags=tmpi->ic_flags&~ICF_ARG1_WAS_STK | tmpil1->ic_flags; |
| tmpi->ic_code=IC_MOV; |
| tmpi->arg1.type=MDF_DISP+tmpi->arg1_type_pointed_to; |
| tmpi->arg1.reg=tmpil1->arg1.reg; |
| tmpi->arg1.disp=tmpil1->ic_data; |
| OptSetNOP2(tmpil1,-1); |
| } else { |
| tmpil1->ic_code=IC_MOV; |
| tmpi->ic_code=IC_MOV; |
| tmpi->arg1.type=MDF_DISP+tmpi->arg1_type_pointed_to; |
| tmpi->arg1.disp=tmpil1->ic_data; |
| } |
| return TRUE; |
| } |
| return FALSE; |
| } |
|
|
| U0 OptPass6Lag(CCmpCtrl *cc,CPrsStk *ps,CIntermediateCode *tmpi, |
| I64 *_stk_ptr,I64 reg_stk_size,I64 *_clobbered_reg_mask) |
| { |
| I64 stk_ptr=*_stk_ptr,code, |
| clobbered_stk_tmp_mask,clobbered_reg_mask=*_clobbered_reg_mask; |
| CHashFun *tmpf; |
| code=tmpi->ic_code; |
| if (tmpi->ic_flags&ICF_PASS_TRACE && Bt(&cc->saved_pass_trace,6)) { |
| "%2d:",stk_ptr; |
| ICPut(cc,tmpi); |
| } |
| if (code==IC_CALL_START) { |
| if (reg_stk_size==1 && stk_ptr>0) |
| clobbered_stk_tmp_mask=REGG_STK_TMP; |
| else |
| clobbered_stk_tmp_mask=0; |
| if (tmpf=tmpi->ic_data) { |
| if (Bt(&tmpf->flags,Ff_INTERNAL)) |
| clobbered_stk_tmp_mask=0; |
| else { |
| clobbered_stk_tmp_mask&=tmpf->clobbered_reg_mask; |
| clobbered_reg_mask|=tmpf->clobbered_reg_mask; |
| } |
| } |
| tmpi->ic_data=clobbered_stk_tmp_mask; |
| PrsPush(ps,stk_ptr); |
| PrsPush(ps,clobbered_stk_tmp_mask); |
| } else if (code==IC_CALL_END) { |
| tmpi->ic_data=PrsPop(ps); |
| stk_ptr=PrsPop(ps); |
| } else if (code==IC_CALL_END2) { |
| ps->ptr--; |
| stk_ptr=PrsPop(ps); |
| } |
| if (intermediate_code_table[code].arg_cnt==IS_V_ARG) |
| stk_ptr-=tmpi->ic_data>>3; |
| if (tmpi->arg2.type&MDF_STK) { |
| stk_ptr--; |
| if (stk_ptr<reg_stk_size) { |
| tmpi->arg2.type=MDF_REG+tmpi->arg2.type.raw_type; |
| tmpi->arg2.reg=Bsf(REGG_STK_TMP); |
| tmpi->arg2.disp=0; |
| } |
| } |
| if (tmpi->arg1.type&MDF_STK) { |
| stk_ptr--; |
| if (stk_ptr<reg_stk_size) { |
| tmpi->arg1.type=MDF_REG+tmpi->arg1.type.raw_type; |
| tmpi->arg1.reg=Bsf(REGG_STK_TMP); |
| tmpi->arg1.disp=0; |
| } |
| } |
| if (tmpi->res.type&MDF_STK && !(tmpi->ic_flags & ICF_PUSH_RES)) { |
| stk_ptr++; |
| if (stk_ptr<=reg_stk_size) { |
| tmpi->res.type=MDF_REG+tmpi->res.type.raw_type; |
| tmpi->res.reg=Bsf(REGG_STK_TMP); |
| clobbered_reg_mask|=REGG_STK_TMP; |
| tmpi->res.disp=0; |
| } |
| } |
| while (OptIC6(tmpi)); |
| if (tmpi->res.type.raw_type!=RT_F64 && !(tmpi->ic_flags&ICF_USE_F64)) |
| tmpi->ic_flags|=ICF_USE_INT; |
| *_stk_ptr=stk_ptr; |
| *_clobbered_reg_mask=clobbered_reg_mask; |
| } |
|
|
| U0 OptPass6(CCmpCtrl *cc) |
| { |
| CIntermediateCode *tmpi,*tmpi_next,*tmpil1,*tmpil2,*old_tmpil2; |
| I64 stk_ptr=0,reg_stk_size,clobbered_reg_mask=REGG_CLOBBERED; |
| CPrsStk *ps=cc->ps; |
| ps->ptr=0; |
| ps->ptr2=0; |
| if (Bt(&cc->opts,OPTf_NO_REG_VAR) || cc->flags&CCF_NO_REG_OPT) |
| reg_stk_size=0; |
| else |
| reg_stk_size=1; |
| #assert REGG_STK_TMP==1<<9 |
| tmpi=cc->coc.coc_head.next; |
| old_tmpil2=NULL; |
| tmpil1=tmpil2=&cmp.ic_nop; |
| while (tmpi->ic_code) { |
| if (tmpi->ic_code>IC_NOP2) { |
| if (tmpil1->ic_code>IC_NOP2) |
| tmpil2=tmpil1; |
| tmpil1=tmpi; |
| if (tmpi->arg2.type&MDF_STK) { |
| if (tmpil2->res.type&MDF_STK && |
| !(tmpil2->ic_flags&ICF_PUSH_RES)) { |
| if (tmpi->ic_code==IC_ASSIGN && tmpi->ic_flags&ICF_BY_VAL && |
| tmpi->ic_flags&ICF_RES_NOT_USED && |
| tmpil2->ic_code!=IC_CALL_END && |
| tmpil2->ic_code!=IC_CALL_END2 && |
| tmpil2->ic_code!=IC_SET_RAX && |
| !(tmpi->ic_flags&(ICF_ARG2_TO_F64|ICF_ARG2_TO_INT)) && |
| !(tmpil2->ic_flags&(ICF_RES_TO_F64|ICF_RES_TO_INT))) { |
| tmpil2->res.type =tmpi->arg1.type&MDG_MASK+ |
| tmpi->arg1_type_pointed_to; |
| tmpil2->res.reg =tmpi->arg1.reg; |
| tmpil2->res.disp =tmpi->arg1.disp; |
| tmpil2->ic_flags=tmpil2->ic_flags |
| &~(ICF_RES_NOT_USED|ICF_RES_WAS_STK) |
| |tmpi->ic_flags&~(ICF_BY_VAL|ICF_ARG1_WAS_STK|ICF_ARG2_WAS_STK); |
| old_tmpil2=NULL; |
| OptSetNOP1(tmpi); |
| } else { |
| tmpi->arg2.type=MDF_REG+tmpi->arg2.type.raw_type; |
| tmpi->arg2.reg=REG_RAX; |
| tmpi->arg2.disp=0; |
| tmpil2->res.type=MDF_REG+tmpil2->res.type.raw_type; |
| tmpil2->res.reg=REG_RAX; |
| tmpil2->res.disp=0; |
| } |
| } |
| } else if (tmpi->arg1.type&MDF_STK && tmpil2->res.type&MDF_STK && |
| !(tmpil2->ic_flags&ICF_PUSH_RES)) { |
| tmpi->arg1.type=MDF_REG+tmpi->arg1.type.raw_type; |
| tmpi->arg1.disp=0; |
| tmpil2->res.type=MDF_REG+tmpil2->res.type.raw_type; |
| tmpil2->res.disp=0; |
| if (intermediate_code_table[tmpi->ic_code].arg_cnt==IS_2_ARG) { |
| tmpi->arg1.reg=REG_R8; |
| tmpil2->res.reg=REG_R8; |
| } else { |
| tmpi->arg1.reg=REG_RAX; |
| tmpil2->res.reg=REG_RAX; |
| } |
| } |
| if (tmpi->ic_flags & ICF_PUSH_RES) |
| tmpi->res.type==MDF_STK+tmpi->res.type.raw_type; |
| if (old_tmpil2!=tmpil2) { |
| if (tmpil2->ic_code>IC_NOP2) |
| OptPass6Lag(cc,ps,tmpil2,&stk_ptr,reg_stk_size,&clobbered_reg_mask); |
| old_tmpil2=tmpil2; |
| } |
| } |
| tmpi_next=tmpi->next; |
| if (tmpi->ic_code<=IC_NOP2) |
| OptFree(tmpi); |
| tmpi=tmpi_next; |
| } |
| if (ps->ptr>2) { |
| "Pass:%d Stk:%08X\n",cc->pass,ps->ptr; |
| LexExcept(cc,"Compiler Optimization Error at "); |
| } |
| if (cc->htc.fun) { |
| cc->htc.fun->used_reg_mask&=~REGG_STK_TMP; |
| cc->htc.fun->used_reg_mask|=clobbered_reg_mask; |
| cc->htc.fun->clobbered_reg_mask=clobbered_reg_mask; |
| if (Bt(&cc->flags,CCf_PASS_TRACE_PRESENT) && |
| Bt(&cc->saved_pass_trace,6)) { |
| "Used Reg Mask:%04X\n",cc->htc.fun->used_reg_mask; |
| "Clobbered Reg Mask:%04X\n",clobbered_reg_mask; |
| } |
| } |
| } |
|
|
