mirror of
https://github.com/Zeal-Operating-System/ZealOS.git
synced 2024-12-26 15:26:43 +00:00
565 lines
15 KiB
HolyC
Executable file
565 lines
15 KiB
HolyC
Executable file
CCodeMisc *OptLabelFwd(CCodeMisc *lb)
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{
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CCodeMisc *lb1;
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while (lb1=lb->fwd)
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lb=lb1;
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return lb;
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}
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CHashClass *OptClassFwd(CHashClass *tmpc)
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{//Class forwarding for unions and subclasses.
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CHashClass *tmpc1;
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while (tmpc1=tmpc->fwd_class)
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tmpc=tmpc1;
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return tmpc;
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}
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U0 OptSetNOP1(CIntermediateCode *tmpi)
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{
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tmpi->ic_code=IC_NOP1;
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tmpi->ic_flags=0;
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tmpi->arg1.type=MDF_NULL+tmpi->arg1.type.raw_type;
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tmpi->res.type =MDF_NULL+tmpi->res.type.raw_type;
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}
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U0 OptSetNOP2(CIntermediateCode *tmpi,I64 stk_delta=1)
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{
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tmpi->ic_code=IC_NOP2;
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tmpi->ic_data=stk_delta;
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tmpi->arg1.type=MDF_NULL+tmpi->arg1.type.raw_type;
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tmpi->res.type =MDF_NULL+tmpi->res.type.raw_type;
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}
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CIntermediateCode *OptFree(CIntermediateCode *tmpi)
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{//We might access freed entries in CICTreeLinks
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QueRem(tmpi);
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Free(tmpi);
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return NULL;
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}
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CIntermediateCode *OptLag(CIntermediateCode *tmpi)
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{
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do {
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if (!tmpi->ic_code)
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return NULL;
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else
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tmpi=tmpi->last;
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} while (tmpi->ic_code<=IC_END_EXP);
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return tmpi;
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}
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CIntermediateCode *OptLag1(CIntermediateCode *tmpi)
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{
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do {
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if (!tmpi->ic_code)
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return NULL;
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else
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tmpi=tmpi->last;
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} while (tmpi->ic_code==IC_NOP1||tmpi->ic_code==IC_NOP2);
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return tmpi;
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}
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CIntermediateCode *OptLag2(CIntermediateCode *tmpi)
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{
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do {
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if (!tmpi->ic_code)
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return NULL;
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else
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tmpi=tmpi->last;
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} while (tmpi->ic_code<IC_END_EXP);
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return tmpi;
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}
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CIntermediateCode *OptLead1(CIntermediateCode *tmpi)
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{
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do {
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tmpi=tmpi->next;
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if (!tmpi->ic_code)
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return NULL;
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} while (tmpi->ic_code==IC_NOP1||tmpi->ic_code==IC_NOP2);
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return tmpi;
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}
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I64 CmpOffset2Reg(I64 offset,COptReg *reg_offsets)
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{
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I64 i;
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for (i=0;i<REG_REGS_NUM;i++)
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if (offset==reg_offsets[i].offset)
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return i;
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return -1;
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}
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#define FBO1_NOT_CONST 0
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#define FBO1_INT 1
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#define FBO1_F64 2
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Bool OptFixupBinaryOp1(CIntermediateCode *tmpi,
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CIntermediateCode *tmpi1,CIntermediateCode *tmpi2,
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Bool *is_unsigned)
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{
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CIntermediateCode *tmpii;
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CHashClass *tmpc=tmpi->ic_class,*tmpc1,*tmpc2;
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if (tmpi1->ic_flags&ICF_RES_TO_INT)
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tmpc1=cmp.internal_types[RT_I64];
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else if (tmpi1->ic_flags&ICF_RES_TO_F64)
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tmpc1=cmp.internal_types[RT_F64];
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else {
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tmpc1=OptClassFwd(tmpi1->ic_class);
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}
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if (tmpi2->ic_flags&ICF_RES_TO_INT)
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tmpc2=cmp.internal_types[RT_I64];
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else if (tmpi2->ic_flags&ICF_RES_TO_F64)
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tmpc2=cmp.internal_types[RT_F64];
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else {
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tmpc2=OptClassFwd(tmpi2->ic_class);
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}
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if (tmpc1->raw_type>tmpc2->raw_type)
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tmpc=tmpi->ic_class=tmpc1;
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else
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tmpc=tmpi->ic_class=tmpc2;
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if (tmpc->raw_type==RT_F64) {
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if (tmpi1->ic_code==IC_IMM_I64) {
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tmpi1->ic_data(F64)=tmpi1->ic_data;
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tmpi1->ic_class=cmp.internal_types[RT_F64];
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tmpi1->ic_code=IC_IMM_F64;
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tmpi1->ic_flags&=~ICF_RES_TO_F64;
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} else
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if (tmpc1->raw_type!=RT_F64)
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tmpi1->ic_flags|=ICF_RES_TO_F64;
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if (tmpi2->ic_code==IC_IMM_I64) {
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tmpi2->ic_data(F64)=tmpi2->ic_data;
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tmpi2->ic_class=cmp.internal_types[RT_F64];
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tmpi2->ic_code=IC_IMM_F64;
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tmpi2->ic_flags&=~ICF_RES_TO_F64;
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} else
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if (tmpc2->raw_type!=RT_F64)
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tmpi2->ic_flags|=ICF_RES_TO_F64;
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if (IC_LESS<=tmpi->ic_code<=IC_GREATER_EQU && (tmpii=OptLead1(tmpi)) &&
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tmpii->ic_code!=IC_PUSH_CMP && tmpii->ic_code!=IC_AND_AND) {
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//We are looking for float comparisons to zero to convert to int.
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if (tmpi1->ic_code==IC_IMM_F64 && !tmpi1->ic_data &&
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tmpi2->ic_code==IC_DEREF && tmpc2==cmp.internal_types[RT_F64]) {
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tmpi1->ic_code==IC_IMM_I64;
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goto fb_here1;
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} else if (tmpi2->ic_code==IC_IMM_F64 && !tmpi2->ic_data &&
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tmpi1->ic_code==IC_DEREF && tmpc1==cmp.internal_types[RT_F64]) {
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tmpi2->ic_code==IC_IMM_I64;
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fb_here1:
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tmpi1->ic_flags&=~ICF_RES_TO_F64;
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tmpi->ic_class=tmpi1->ic_class=tmpi2->ic_class=
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cmp.internal_types[RT_I64];
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*is_unsigned=FALSE;
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return FBO1_NOT_CONST;
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}
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goto fb_here2;
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} else {
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fb_here2:
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if (tmpi1->ic_code==IC_IMM_F64 && tmpi2->ic_code==IC_IMM_F64 &&
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!(tmpi->ic_flags&(ICF_PUSH_CMP|ICF_POP_CMP))) {
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tmpi->ic_flags|=tmpi1->ic_flags|tmpi2->ic_flags;
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OptSetNOP1(tmpi1);
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OptSetNOP1(tmpi2);
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return FBO1_F64;
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} else
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return FBO1_NOT_CONST;
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}
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}
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*is_unsigned=tmpc1->raw_type&RTF_UNSIGNED || tmpc2->raw_type&RTF_UNSIGNED;
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if (tmpi1->ic_code==IC_IMM_I64 && tmpi2->ic_code==IC_IMM_I64 &&
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!(tmpi->ic_flags&(ICF_PUSH_CMP|ICF_POP_CMP))) {
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tmpi->ic_flags|=tmpi1->ic_flags|tmpi2->ic_flags;
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OptSetNOP1(tmpi1);
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OptSetNOP1(tmpi2);
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return FBO1_INT;
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} else
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return FBO1_NOT_CONST;
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}
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Bool OptFixupBinaryOp2(CIntermediateCode **tmpi1,CIntermediateCode **tmpi2)
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{
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CIntermediateCode *tmpii1=*tmpi1,
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*tmpii2=*tmpi2;
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if (tmpii1->ic_code==IC_IMM_I64 && !(tmpii1->ic_flags & ICF_RES_TO_F64))
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return TRUE;
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if (tmpii2->ic_code==IC_IMM_I64 && !(tmpii2->ic_flags & ICF_RES_TO_F64)) {
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*tmpi1=tmpii2;
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*tmpi2=tmpii1;
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return TRUE;
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}
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return FALSE;
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}
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Bool OptFixupUnaryOp(CIntermediateCode *tmpi, CIntermediateCode *tmpi1,
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Bool *is_unsigned)
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{
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CHashClass *tmpc,*tmpc1;
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tmpc1=OptClassFwd(tmpi1->ic_class);
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tmpi->ic_class=tmpc1;
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tmpc=tmpi->ic_class;
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if (tmpc->raw_type==RT_F64) {
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if (tmpi1->ic_code==IC_IMM_I64) {
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tmpi1->ic_data(F64)=tmpi1->ic_data;
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tmpi1->ic_class=cmp.internal_types[RT_F64];
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tmpi1->ic_code=IC_IMM_F64;
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tmpi1->ic_flags&=~ICF_RES_TO_F64;
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} else
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if (tmpc1->raw_type!=RT_F64)
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tmpi1->ic_flags|=ICF_RES_TO_F64;
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if (tmpi1->ic_code==IC_IMM_F64) {
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tmpi->ic_flags|=tmpi1->ic_flags;
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OptSetNOP1(tmpi1);
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return FBO1_F64;
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} else
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return FBO1_NOT_CONST;
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}
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*is_unsigned=tmpc1->raw_type&RTF_UNSIGNED;
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if (tmpi1->ic_code==IC_IMM_I64) {
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tmpi->ic_flags|=tmpi1->ic_flags;
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OptSetNOP1(tmpi1);
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return FBO1_INT;
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} else
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return FBO1_NOT_CONST;
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}
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extern CIntermediateCode *OptBrNotZero(CCmpCtrl *cc,CIntermediateCode *tmpi);
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CIntermediateCode *OptBrZero(CCmpCtrl *cc,CIntermediateCode *tmpi)
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{
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CCodeMisc *lb_true,*lb_false;
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CIntermediateCode *tmpii=OptLag(tmpi),*tmpii2;
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switch (tmpii->ic_code) {
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case IC_NOT:
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tmpi->ic_code=IC_BR_NOT_ZERO;
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tmpi->ic_class=tmpii->ic_class;
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tmpi->ic_flags|=tmpii->ic_flags;
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tmpi->t.arg1_class=tmpii->t.arg1_class;
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tmpi->t.arg1_tree=tmpii->t.arg1_tree;
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OptFree(tmpii);
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return OptBrNotZero(cc,tmpi);
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case IC_EQU_EQU...IC_LESS_EQU:
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tmpi->ic_code=(tmpii->ic_code-IC_EQU_EQU)^1+IC_BR_EQU_EQU;
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break;
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case IC_OR_OR:
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tmpi->ic_code=IC_BR_OR_OR_ZERO;
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break;
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case IC_AND_AND:
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tmpi->ic_code=IC_BR_AND_AND_ZERO;
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break;
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case IC_AND:
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tmpi->ic_code=IC_BR_AND_ZERO;
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break;
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case IC_MM_:
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if (cc->pass==2 && !(tmpii->ic_flags&ICF_RES_TO_F64) &&
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tmpii->ic_class->raw_type!=RT_F64)
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tmpi->ic_code=IC_BR_MM_ZERO;
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break;
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case IC_CALL_END:
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tmpii2=OptLag(tmpii);
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switch (tmpii2->ic_code) {
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start:
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case IC_CARRY:
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tmpii2->ic_code=IC_BR_NOT_CARRY;
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break;
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case IC_BT:
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tmpii2->ic_code=IC_BR_NOT_BT;
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break;
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case IC_LBTS:
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tmpii2->ic_flags|=ICF_LOCK;
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case IC_BTS:
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tmpii2->ic_code=IC_BR_NOT_BTS;
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break;
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case IC_LBTR:
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tmpii2->ic_flags|=ICF_LOCK;
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case IC_BTR:
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tmpii2->ic_code=IC_BR_NOT_BTR;
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break;
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case IC_LBTC:
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tmpii2->ic_flags|=ICF_LOCK;
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case IC_BTC:
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tmpii2->ic_code=IC_BR_NOT_BTC;
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break;
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end:
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tmpii2->ic_data=tmpi->ic_data;
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tmpii->ic_code=IC_CALL_END2;
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OptSetNOP1(tmpi);
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return tmpii;
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}
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break;
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}
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if (tmpi->ic_code!=IC_BR_ZERO) {
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tmpi->ic_class=tmpii->ic_class;
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tmpi->ic_flags|=tmpii->ic_flags;
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tmpi->t.arg1_class=tmpii->t.arg1_class;
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tmpi->t.arg2_class=tmpii->t.arg2_class;
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tmpi->t.arg1_tree=tmpii->t.arg1_tree;
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tmpi->t.arg2_tree=tmpii->t.arg2_tree;
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OptFree(tmpii);
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if (tmpi->ic_flags&ICF_PUSH_CMP &&
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IC_BR_NOT_EQU<=tmpi->ic_code<=IC_BR_LESS_EQU &&
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!(tmpi->ic_flags&ICF_USE_F64)) {
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tmpi->ic_code+=IC_BR_EQU_EQU2-IC_BR_EQU_EQU;
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tmpi->ic_flags&=~ICF_PUSH_CMP;
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tmpii=tmpi->next; //IC_PUSH_CMP inst
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while (tmpii->ic_code!=IC_PUSH_CMP)
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tmpii=tmpii->next;
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tmpii->t.arg1_tree=tmpi;
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OptSetNOP1(tmpii);
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}
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lb_true=tmpi->ic_data;
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if (tmpi->ic_code==IC_BR_AND_AND_ZERO) {
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tmpii=tmpi->t.arg1_tree->next;
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tmpii->ic_data=lb_true;
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tmpii->t.arg1_tree=tmpi->t.arg1_tree;
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tmpii->t.arg1_class=tmpi->t.arg1_class;
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tmpii->ic_code=IC_BR_ZERO;
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OptBrZero(cc,tmpii);
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tmpii=tmpi->t.arg2_tree->next;
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tmpii->t.arg1_tree=tmpi->t.arg2_tree;
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tmpii->t.arg1_class=tmpi->t.arg2_class;
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tmpii->ic_data=lb_true;
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tmpii->ic_code=IC_BR_ZERO;
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tmpii=OptBrZero(cc,tmpii);
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OptSetNOP1(tmpi);
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} else if (tmpi->ic_code==IC_BR_OR_OR_ZERO) {
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lb_false=COCMiscNew(cc,CMT_LABEL);
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tmpi->ic_code=IC_LABEL;
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tmpi->ic_flags=0;
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tmpi->ic_data=lb_false;
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tmpii=tmpi->t.arg1_tree->next;
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tmpii->t.arg1_tree=tmpi->t.arg1_tree;
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tmpii->t.arg1_class=tmpi->t.arg1_class;
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tmpii->ic_data=lb_false;
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tmpii->ic_code=IC_BR_NOT_ZERO;
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OptBrNotZero(cc,tmpii);
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tmpii=tmpi->t.arg2_tree->next;
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tmpii->t.arg1_tree=tmpi->t.arg2_tree;
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tmpii->t.arg1_class=tmpi->t.arg2_class;
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tmpii->ic_data=lb_true;
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tmpii->ic_code=IC_BR_ZERO;
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tmpii=OptBrZero(cc,tmpii);
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} else
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tmpii=tmpi;
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if (tmpi->ic_flags&ICF_POP_CMP && tmpi->t.arg1_tree->ic_code==IC_NOP1) {
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tmpi->t.arg1_tree=tmpi->t.arg1_tree->t.arg1_tree;
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tmpi->ic_flags&=~ICF_POP_CMP;
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}
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return tmpii;
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}
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return tmpi;
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}
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CIntermediateCode *OptBrNotZero(CCmpCtrl *cc,CIntermediateCode *tmpi)
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{
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CCodeMisc *lb_true,*lb_false;
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CIntermediateCode *tmpii=OptLag(tmpi),*tmpii2;
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switch (tmpii->ic_code) {
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case IC_NOT:
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tmpi->ic_code=IC_BR_ZERO;
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tmpi->ic_class=tmpii->ic_class;
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tmpi->ic_flags|=tmpii->ic_flags;
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tmpi->t.arg1_class=tmpii->t.arg1_class;
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tmpi->t.arg1_tree=tmpii->t.arg1_tree;
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OptFree(tmpii);
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return OptBrZero(cc,tmpi);
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case IC_EQU_EQU...IC_LESS_EQU:
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tmpi->ic_code=tmpii->ic_code+IC_BR_EQU_EQU-IC_EQU_EQU;
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break;
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case IC_OR_OR:
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tmpi->ic_code=IC_BR_OR_OR_NOT_ZERO;
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break;
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case IC_AND_AND:
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tmpi->ic_code=IC_BR_AND_AND_NOT_ZERO;
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break;
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case IC_AND:
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tmpi->ic_code=IC_BR_AND_NOT_ZERO;
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break;
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case IC_MM_:
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if (cc->pass==2 && !(tmpii->ic_flags&ICF_RES_TO_F64) &&
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tmpii->ic_class->raw_type!=RT_F64)
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tmpi->ic_code=IC_BR_MM_NOT_ZERO;
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break;
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case IC_CALL_END:
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tmpii2=OptLag(tmpii);
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switch (tmpii2->ic_code) {
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start:
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case IC_CARRY:
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tmpii2->ic_code=IC_BR_CARRY;
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break;
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case IC_BT:
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tmpii2->ic_code=IC_BR_BT;
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break;
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case IC_LBTS:
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tmpii2->ic_flags|=ICF_LOCK;
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case IC_BTS:
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tmpii2->ic_code=IC_BR_BTS;
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break;
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case IC_LBTR:
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tmpii2->ic_flags|=ICF_LOCK;
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case IC_BTR:
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tmpii2->ic_code=IC_BR_BTR;
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break;
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case IC_LBTC:
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tmpii2->ic_flags|=ICF_LOCK;
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case IC_BTC:
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tmpii2->ic_code=IC_BR_BTC;
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break;
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end:
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tmpii2->ic_data=tmpi->ic_data;
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tmpii->ic_code=IC_CALL_END2;
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OptSetNOP1(tmpi);
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return tmpii;
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}
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break;
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}
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if (tmpi->ic_code!=IC_BR_NOT_ZERO) {
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tmpi->ic_class=tmpii->ic_class;
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tmpi->ic_flags|=tmpii->ic_flags;
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tmpi->t.arg1_class=tmpii->t.arg1_class;
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tmpi->t.arg2_class=tmpii->t.arg2_class;
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tmpi->t.arg1_tree=tmpii->t.arg1_tree;
|
|
tmpi->t.arg2_tree=tmpii->t.arg2_tree;
|
|
OptFree(tmpii);
|
|
|
|
if (tmpi->ic_flags&ICF_PUSH_CMP &&
|
|
IC_BR_NOT_EQU<=tmpi->ic_code<=IC_BR_LESS_EQU &&
|
|
!(tmpi->ic_flags&ICF_USE_F64)) {
|
|
tmpi->ic_code+=IC_BR_EQU_EQU2-IC_BR_EQU_EQU;
|
|
tmpi->ic_flags&=~ICF_PUSH_CMP;
|
|
tmpii=tmpi->next; //IC_PUSH_CMP inst
|
|
while (tmpii->ic_code!=IC_PUSH_CMP)
|
|
tmpii=tmpii->next;
|
|
tmpii->t.arg1_tree=tmpi;
|
|
OptSetNOP1(tmpii);
|
|
}
|
|
|
|
lb_true=tmpi->ic_data;
|
|
if (tmpi->ic_code==IC_BR_OR_OR_NOT_ZERO) {
|
|
tmpii=tmpi->t.arg1_tree->next;
|
|
tmpii->t.arg1_tree=tmpi->t.arg1_tree;
|
|
tmpii->t.arg1_class=tmpi->t.arg1_class;
|
|
tmpii->ic_data=lb_true;
|
|
tmpii->ic_code=IC_BR_NOT_ZERO;
|
|
OptBrNotZero(cc,tmpii);
|
|
tmpii=tmpi->t.arg2_tree->next;
|
|
tmpii->t.arg1_tree=tmpi->t.arg2_tree;
|
|
tmpii->t.arg1_class=tmpi->t.arg2_class;
|
|
tmpii->ic_data=lb_true;
|
|
tmpii->ic_code=IC_BR_NOT_ZERO;
|
|
tmpii=OptBrNotZero(cc,tmpii);
|
|
OptSetNOP1(tmpi);
|
|
} else if (tmpi->ic_code==IC_BR_AND_AND_NOT_ZERO) {
|
|
lb_false=COCMiscNew(cc,CMT_LABEL);
|
|
tmpi->ic_code=IC_LABEL;
|
|
tmpi->ic_flags=0;
|
|
tmpi->ic_data=lb_false;
|
|
tmpii=tmpi->t.arg1_tree->next;
|
|
tmpii->t.arg1_tree=tmpi->t.arg1_tree;
|
|
tmpii->t.arg1_class=tmpi->t.arg1_class;
|
|
tmpii->ic_data=lb_false;
|
|
tmpii->ic_code=IC_BR_ZERO;
|
|
OptBrZero(cc,tmpii);
|
|
tmpii=tmpi->t.arg2_tree->next;
|
|
tmpii->t.arg1_tree=tmpi->t.arg2_tree;
|
|
tmpii->t.arg1_class=tmpi->t.arg2_class;
|
|
tmpii->ic_data=lb_true;
|
|
tmpii->ic_code=IC_BR_NOT_ZERO;
|
|
tmpii=OptBrNotZero(cc,tmpii);
|
|
} else
|
|
tmpii=tmpi;
|
|
if (tmpi->ic_flags&ICF_POP_CMP && tmpi->t.arg1_tree->ic_code==IC_NOP1) {
|
|
tmpi->t.arg1_tree=tmpi->t.arg1_tree->t.arg1_tree;
|
|
tmpi->ic_flags&=~ICF_POP_CMP;
|
|
}
|
|
return tmpii;
|
|
}
|
|
return tmpi;
|
|
}
|
|
|
|
U0 OptFixSizeOf(CIntermediateCode *tmpi1,
|
|
CIntermediateCode *tmpi_push,CHashClass *tmpcc)
|
|
{
|
|
if (tmpi1->ic_code==IC_MUL && tmpi1->t.arg2_tree->ic_code==IC_SIZEOF) {
|
|
tmpi1->t.arg2_tree->ic_code=IC_IMM_I64;
|
|
tmpi1->t.arg2_tree->ic_class=tmpcc;
|
|
tmpi_push->ic_class=tmpcc;
|
|
if (tmpcc->ptr_stars_cnt) {
|
|
tmpcc--;
|
|
if (tmpcc->size==1)
|
|
goto here;
|
|
tmpi1->t.arg2_tree->ic_data=tmpcc->size;
|
|
} else {
|
|
here:
|
|
if (tmpi_push==tmpi1)
|
|
tmpi1->t.arg2_tree->ic_data=1;
|
|
else {
|
|
OptSetNOP1(tmpi1->t.arg2_tree);
|
|
OptSetNOP1(tmpi1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
I64 CmpRawType(CHashClass *tmpc)
|
|
{
|
|
if (tmpc) {
|
|
tmpc=OptClassFwd(tmpc);
|
|
return tmpc->raw_type;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
I64 CmpRawTypePointed(CHashClass *tmpc)
|
|
{
|
|
if (tmpc) {
|
|
if (tmpc->ptr_stars_cnt)
|
|
tmpc--;
|
|
tmpc=OptClassFwd(tmpc);
|
|
return tmpc->raw_type;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
U0 CmpMinTypePointed(CIntermediateCode *tmpi,I64 pt1)
|
|
{
|
|
I64 pt;
|
|
if ((pt=tmpi->arg1_type_pointed_to) && pt!=RT_F64 && 0<pt1<pt)
|
|
tmpi->arg1_type_pointed_to=pt;
|
|
}
|
|
|
|
U0 CmpF1PushPop(CIntermediateCode *tmpi,CIntermediateCode *tmpi2)
|
|
{
|
|
if (intermediate_code_table[tmpi2->ic_code].fpop||
|
|
tmpi2->ic_flags&ICF_RES_TO_F64)
|
|
Bts(&tmpi->ic_flags,ICf_DONT_PUSH_FLOAT0);
|
|
}
|
|
|
|
U0 CmpF2PushPop(CIntermediateCode *tmpi,
|
|
CIntermediateCode *tmpi1,CIntermediateCode *tmpi2)
|
|
{
|
|
if ((tmpi2->ic_code==IC_MOV || tmpi2->ic_code==IC_IMM_F64) &&
|
|
!(tmpi2->ic_flags&ICF_RES_TO_F64) &&
|
|
(intermediate_code_table[tmpi1->ic_code].fpop ||
|
|
tmpi1->ic_flags&ICF_RES_TO_F64))
|
|
Bts(&tmpi->ic_flags,ICf_DONT_PUSH_FLOAT0);
|
|
else if ((intermediate_code_table[tmpi2->ic_code].fpop ||
|
|
tmpi2->ic_flags&ICF_RES_TO_F64)&&
|
|
!(tmpi1->ic_flags&ICF_RES_TO_F64))
|
|
Bts(&tmpi->ic_flags,ICf_DONT_PUSH_FLOAT0);
|
|
}
|
|
|
|
class COptMemberVar
|
|
{
|
|
I64 score,offset_start,offset_end,lea_balance;
|
|
CMemberLst *m;
|
|
};
|
|
|
|
I64 OptMVCompare(COptMemberVar *mv1,COptMemberVar *mv2)
|
|
{
|
|
return mv2->score-mv1->score;
|
|
}
|