mirror of
https://github.com/minexew/Shrine.git
synced 2026-05-26 18:10:58 +00:00
Terry A. Davis
566 lines
15 KiB
C++
566 lines
15 KiB
C++
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 *tempc)
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{//Class forwarding for unions and subclasses.
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CHashClass *tempc1;
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while (tempc1=tempc->fwd_class)
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tempc=tempc1;
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return tempc;
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}
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U0 OptSetNOP1(CIntermediateCode *tempi)
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{
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tempi->ic_code=IC_NOP1;
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tempi->ic_flags=0;
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tempi->a1.type=MDF_NULL+tempi->a1.type.raw_type;
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tempi->r.type =MDF_NULL+tempi->r.type.raw_type;
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}
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U0 OptSetNOP2(CIntermediateCode *tempi,I64 stk_delta=1)
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{
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tempi->ic_code=IC_NOP2;
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tempi->ic_data=stk_delta;
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tempi->a1.type=MDF_NULL+tempi->a1.type.raw_type;
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tempi->r.type =MDF_NULL+tempi->r.type.raw_type;
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}
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CIntermediateCode *OptFree(CIntermediateCode *tempi)
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{//We might access freed entries in CICTreeLinks
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QueRem(tempi);
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Free(tempi);
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return NULL;
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}
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CIntermediateCode *OptLag(CIntermediateCode *tempi)
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{
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do {
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if (!tempi->ic_code)
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return NULL;
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else
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tempi=tempi->last;
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} while (tempi->ic_code<=IC_END_EXP);
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return tempi;
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}
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CIntermediateCode *OptLag1(CIntermediateCode *tempi)
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{
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do {
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if (!tempi->ic_code)
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return NULL;
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else
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tempi=tempi->last;
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} while (tempi->ic_code==IC_NOP1||tempi->ic_code==IC_NOP2);
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return tempi;
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}
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CIntermediateCode *OptLag2(CIntermediateCode *tempi)
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{
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do {
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if (!tempi->ic_code)
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return NULL;
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else
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tempi=tempi->last;
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} while (tempi->ic_code<IC_END_EXP);
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return tempi;
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}
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CIntermediateCode *OptLead1(CIntermediateCode *tempi)
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{
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do {
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tempi=tempi->next;
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if (!tempi->ic_code)
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return NULL;
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} while (tempi->ic_code==IC_NOP1||tempi->ic_code==IC_NOP2);
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return tempi;
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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<NUM_REGS;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 *tempi,
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CIntermediateCode *tempi1,CIntermediateCode *tempi2,
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Bool *is_unsigned)
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{
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CIntermediateCode *tempii;
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CHashClass *tempc=tempi->ic_class,*tempc1,*tempc2;
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if (tempi1->ic_flags&ICF_R_TO_INT)
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tempc1=cmp.internal_types[RT_I64];
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else if (tempi1->ic_flags&ICF_R_TO_F64)
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tempc1=cmp.internal_types[RT_F64];
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else {
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tempc1=OptClassFwd(tempi1->ic_class);
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}
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if (tempi2->ic_flags&ICF_R_TO_INT)
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tempc2=cmp.internal_types[RT_I64];
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else if (tempi2->ic_flags&ICF_R_TO_F64)
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tempc2=cmp.internal_types[RT_F64];
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else {
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tempc2=OptClassFwd(tempi2->ic_class);
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}
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if (tempc1->raw_type>tempc2->raw_type)
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tempc=tempi->ic_class=tempc1;
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else
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tempc=tempi->ic_class=tempc2;
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if (tempc->raw_type==RT_F64) {
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if (tempi1->ic_code==IC_IMM_I64) {
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tempi1->ic_data(F64)=tempi1->ic_data;
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tempi1->ic_class=cmp.internal_types[RT_F64];
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tempi1->ic_code=IC_IMM_F64;
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tempi1->ic_flags&=~ICF_R_TO_F64;
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} else
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if (tempc1->raw_type!=RT_F64)
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tempi1->ic_flags|=ICF_R_TO_F64;
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if (tempi2->ic_code==IC_IMM_I64) {
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tempi2->ic_data(F64)=tempi2->ic_data;
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tempi2->ic_class=cmp.internal_types[RT_F64];
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tempi2->ic_code=IC_IMM_F64;
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tempi2->ic_flags&=~ICF_R_TO_F64;
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} else
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if (tempc2->raw_type!=RT_F64)
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tempi2->ic_flags|=ICF_R_TO_F64;
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if (IC_LESS<=tempi->ic_code<=IC_GREATER_EQU && (tempii=OptLead1(tempi)) &&
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tempii->ic_code!=IC_PUSH_CMP && tempii->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 (tempi1->ic_code==IC_IMM_F64 && !tempi1->ic_data &&
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tempi2->ic_code==IC_DEREF && tempc2==cmp.internal_types[RT_F64]) {
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tempi1->ic_code==IC_IMM_I64;
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goto fb_here1;
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} else if (tempi2->ic_code==IC_IMM_F64 && !tempi2->ic_data &&
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tempi1->ic_code==IC_DEREF && tempc1==cmp.internal_types[RT_F64]) {
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tempi2->ic_code==IC_IMM_I64;
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fb_here1:
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tempi1->ic_flags&=~ICF_R_TO_F64;
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tempi->ic_class=tempi1->ic_class=tempi2->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 (tempi1->ic_code==IC_IMM_F64 && tempi2->ic_code==IC_IMM_F64 &&
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!(tempi->ic_flags&(ICF_PUSH_CMP|ICF_POP_CMP))) {
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tempi->ic_flags|=tempi1->ic_flags|tempi2->ic_flags;
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OptSetNOP1(tempi1);
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OptSetNOP1(tempi2);
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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=tempc1->raw_type&RTF_UNSIGNED || tempc2->raw_type&RTF_UNSIGNED;
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if (tempi1->ic_code==IC_IMM_I64 && tempi2->ic_code==IC_IMM_I64 &&
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!(tempi->ic_flags&(ICF_PUSH_CMP|ICF_POP_CMP))) {
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tempi->ic_flags|=tempi1->ic_flags|tempi2->ic_flags;
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OptSetNOP1(tempi1);
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OptSetNOP1(tempi2);
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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 **tempi1,CIntermediateCode **tempi2)
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{
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CIntermediateCode *tempii1=*tempi1,
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*tempii2=*tempi2;
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if (tempii1->ic_code==IC_IMM_I64 && !(tempii1->ic_flags & ICF_R_TO_F64))
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return TRUE;
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if (tempii2->ic_code==IC_IMM_I64 && !(tempii2->ic_flags & ICF_R_TO_F64)) {
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*tempi1=tempii2;
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*tempi2=tempii1;
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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 *tempi, CIntermediateCode *tempi1,
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Bool *is_unsigned)
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{
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CHashClass *tempc,*tempc1;
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tempc1=OptClassFwd(tempi1->ic_class);
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tempi->ic_class=tempc1;
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tempc=tempi->ic_class;
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if (tempc->raw_type==RT_F64) {
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if (tempi1->ic_code==IC_IMM_I64) {
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tempi1->ic_data(F64)=tempi1->ic_data;
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tempi1->ic_class=cmp.internal_types[RT_F64];
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tempi1->ic_code=IC_IMM_F64;
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tempi1->ic_flags&=~ICF_R_TO_F64;
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} else
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if (tempc1->raw_type!=RT_F64)
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tempi1->ic_flags|=ICF_R_TO_F64;
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if (tempi1->ic_code==IC_IMM_F64) {
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tempi->ic_flags|=tempi1->ic_flags;
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OptSetNOP1(tempi1);
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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=tempc1->raw_type&RTF_UNSIGNED;
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if (tempi1->ic_code==IC_IMM_I64) {
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tempi->ic_flags|=tempi1->ic_flags;
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OptSetNOP1(tempi1);
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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 U0 OptBrNotZero(CCmpCtrl *cc,CIntermediateCode *tempi);
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CIntermediateCode *OptBrZero(CCmpCtrl *cc,CIntermediateCode *tempi)
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{
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CCodeMisc *lb_true,*lb_false;
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CIntermediateCode *tempii=OptLag(tempi),*tempii2;
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switch (tempii->ic_code) {
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case IC_NOT:
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tempi->ic_code=IC_BR_NOT_ZERO;
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tempi->ic_class=tempii->ic_class;
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tempi->ic_flags|=tempii->ic_flags;
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tempi->t.a1c=tempii->t.a1c;
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tempi->t.a1t=tempii->t.a1t;
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OptFree(tempii);
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return OptBrNotZero(cc,tempi);
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case IC_EQU_EQU...IC_LESS_EQU:
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tempi->ic_code=(tempii->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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tempi->ic_code=IC_BR_OR_OR_ZERO;
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break;
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case IC_AND_AND:
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tempi->ic_code=IC_BR_AND_AND_ZERO;
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break;
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case IC_AND:
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tempi->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 && !(tempii->ic_flags&ICF_R_TO_F64) &&
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tempii->ic_class->raw_type!=RT_F64)
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tempi->ic_code=IC_BR_MM_ZERO;
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break;
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case IC_CALL_END:
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tempii2=OptLag(tempii);
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switch (tempii2->ic_code) {
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start:
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case IC_CARRY:
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tempii2->ic_code=IC_BR_NOT_CARRY;
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break;
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case IC_BT:
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tempii2->ic_code=IC_BR_NOT_BT;
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break;
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case IC_LBTS:
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tempii2->ic_flags|=ICF_LOCK;
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case IC_BTS:
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tempii2->ic_code=IC_BR_NOT_BTS;
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break;
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case IC_LBTR:
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tempii2->ic_flags|=ICF_LOCK;
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case IC_BTR:
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tempii2->ic_code=IC_BR_NOT_BTR;
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break;
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case IC_LBTC:
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tempii2->ic_flags|=ICF_LOCK;
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case IC_BTC:
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tempii2->ic_code=IC_BR_NOT_BTC;
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break;
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end:
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tempii2->ic_data=tempi->ic_data;
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tempii->ic_code=IC_CALL_END2;
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OptSetNOP1(tempi);
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return tempii;
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}
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break;
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}
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if (tempi->ic_code!=IC_BR_ZERO) {
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tempi->ic_class=tempii->ic_class;
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tempi->ic_flags|=tempii->ic_flags;
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tempi->t.a1c=tempii->t.a1c;
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tempi->t.a2c=tempii->t.a2c;
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tempi->t.a1t=tempii->t.a1t;
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tempi->t.a2t=tempii->t.a2t;
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OptFree(tempii);
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if (tempi->ic_flags&ICF_PUSH_CMP &&
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IC_BR_NOT_EQU<=tempi->ic_code<=IC_BR_LESS_EQU &&
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!(tempi->ic_flags&ICF_USE_F64)) {
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tempi->ic_code+=IC_BR_EQU_EQU2-IC_BR_EQU_EQU;
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tempi->ic_flags&=~ICF_PUSH_CMP;
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tempii=tempi->next; //IC_PUSH_CMP inst
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while (tempii->ic_code!=IC_PUSH_CMP)
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tempii=tempii->next;
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tempii->t.a1t=tempi;
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OptSetNOP1(tempii);
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}
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lb_true=tempi->ic_data;
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if (tempi->ic_code==IC_BR_AND_AND_ZERO) {
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tempii=tempi->t.a1t->next;
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tempii->ic_data=lb_true;
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tempii->t.a1t=tempi->t.a1t;
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tempii->t.a1c=tempi->t.a1c;
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tempii->ic_code=IC_BR_ZERO;
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OptBrZero(cc,tempii);
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tempii=tempi->t.a2t->next;
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tempii->t.a1t=tempi->t.a2t;
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tempii->t.a1c=tempi->t.a2c;
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tempii->ic_data=lb_true;
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tempii->ic_code=IC_BR_ZERO;
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tempii=OptBrZero(cc,tempii);
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OptSetNOP1(tempi);
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} else if (tempi->ic_code==IC_BR_OR_OR_ZERO) {
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lb_false=COCMiscNew(cc,CMT_LABEL);
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tempi->ic_code=IC_LABEL;
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tempi->ic_flags=0;
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tempi->ic_data=lb_false;
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tempii=tempi->t.a1t->next;
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tempii->t.a1t=tempi->t.a1t;
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tempii->t.a1c=tempi->t.a1c;
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tempii->ic_data=lb_false;
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tempii->ic_code=IC_BR_NOT_ZERO;
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OptBrNotZero(cc,tempii);
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tempii=tempi->t.a2t->next;
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tempii->t.a1t=tempi->t.a2t;
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tempii->t.a1c=tempi->t.a2c;
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tempii->ic_data=lb_true;
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tempii->ic_code=IC_BR_ZERO;
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tempii=OptBrZero(cc,tempii);
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} else
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tempii=tempi;
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if (tempi->ic_flags&ICF_POP_CMP && tempi->t.a1t->ic_code==IC_NOP1) {
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tempi->t.a1t=tempi->t.a1t->t.a1t;
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tempi->ic_flags&=~ICF_POP_CMP;
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}
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return tempii;
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}
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return tempi;
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}
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CIntermediateCode *OptBrNotZero(CCmpCtrl *cc,CIntermediateCode *tempi)
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{
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CCodeMisc *lb_true,*lb_false;
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CIntermediateCode *tempii=OptLag(tempi),*tempii2;
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switch (tempii->ic_code) {
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case IC_NOT:
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tempi->ic_code=IC_BR_ZERO;
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tempi->ic_class=tempii->ic_class;
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tempi->ic_flags|=tempii->ic_flags;
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tempi->t.a1c=tempii->t.a1c;
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tempi->t.a1t=tempii->t.a1t;
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OptFree(tempii);
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return OptBrZero(cc,tempi);
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case IC_EQU_EQU...IC_LESS_EQU:
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tempi->ic_code=tempii->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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tempi->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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tempi->ic_code=IC_BR_AND_AND_NOT_ZERO;
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break;
|
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case IC_AND:
|
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tempi->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 && !(tempii->ic_flags&ICF_R_TO_F64) &&
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tempii->ic_class->raw_type!=RT_F64)
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tempi->ic_code=IC_BR_MM_NOT_ZERO;
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break;
|
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case IC_CALL_END:
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tempii2=OptLag(tempii);
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switch (tempii2->ic_code) {
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start:
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case IC_CARRY:
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tempii2->ic_code=IC_BR_CARRY;
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break;
|
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case IC_BT:
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tempii2->ic_code=IC_BR_BT;
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break;
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case IC_LBTS:
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tempii2->ic_flags|=ICF_LOCK;
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case IC_BTS:
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tempii2->ic_code=IC_BR_BTS;
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break;
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case IC_LBTR:
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tempii2->ic_flags|=ICF_LOCK;
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case IC_BTR:
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tempii2->ic_code=IC_BR_BTR;
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break;
|
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case IC_LBTC:
|
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tempii2->ic_flags|=ICF_LOCK;
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case IC_BTC:
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tempii2->ic_code=IC_BR_BTC;
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break;
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end:
|
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tempii2->ic_data=tempi->ic_data;
|
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tempii->ic_code=IC_CALL_END2;
|
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OptSetNOP1(tempi);
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return tempii;
|
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}
|
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break;
|
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}
|
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if (tempi->ic_code!=IC_BR_NOT_ZERO) {
|
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tempi->ic_class=tempii->ic_class;
|
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tempi->ic_flags|=tempii->ic_flags;
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tempi->t.a1c=tempii->t.a1c;
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tempi->t.a2c=tempii->t.a2c;
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tempi->t.a1t=tempii->t.a1t;
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tempi->t.a2t=tempii->t.a2t;
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|
OptFree(tempii);
|
|
|
|
if (tempi->ic_flags&ICF_PUSH_CMP &&
|
|
IC_BR_NOT_EQU<=tempi->ic_code<=IC_BR_LESS_EQU &&
|
|
!(tempi->ic_flags&ICF_USE_F64)) {
|
|
tempi->ic_code+=IC_BR_EQU_EQU2-IC_BR_EQU_EQU;
|
|
tempi->ic_flags&=~ICF_PUSH_CMP;
|
|
tempii=tempi->next; //IC_PUSH_CMP inst
|
|
while (tempii->ic_code!=IC_PUSH_CMP)
|
|
tempii=tempii->next;
|
|
tempii->t.a1t=tempi;
|
|
OptSetNOP1(tempii);
|
|
}
|
|
|
|
lb_true=tempi->ic_data;
|
|
if (tempi->ic_code==IC_BR_OR_OR_NOT_ZERO) {
|
|
tempii=tempi->t.a1t->next;
|
|
tempii->t.a1t=tempi->t.a1t;
|
|
tempii->t.a1c=tempi->t.a1c;
|
|
tempii->ic_data=lb_true;
|
|
tempii->ic_code=IC_BR_NOT_ZERO;
|
|
OptBrNotZero(cc,tempii);
|
|
tempii=tempi->t.a2t->next;
|
|
tempii->t.a1t=tempi->t.a2t;
|
|
tempii->t.a1c=tempi->t.a2c;
|
|
tempii->ic_data=lb_true;
|
|
tempii->ic_code=IC_BR_NOT_ZERO;
|
|
tempii=OptBrNotZero(cc,tempii);
|
|
OptSetNOP1(tempi);
|
|
} else if (tempi->ic_code==IC_BR_AND_AND_NOT_ZERO) {
|
|
lb_false=COCMiscNew(cc,CMT_LABEL);
|
|
tempi->ic_code=IC_LABEL;
|
|
tempi->ic_flags=0;
|
|
tempi->ic_data=lb_false;
|
|
tempii=tempi->t.a1t->next;
|
|
tempii->t.a1t=tempi->t.a1t;
|
|
tempii->t.a1c=tempi->t.a1c;
|
|
tempii->ic_data=lb_false;
|
|
tempii->ic_code=IC_BR_ZERO;
|
|
OptBrZero(cc,tempii);
|
|
tempii=tempi->t.a2t->next;
|
|
tempii->t.a1t=tempi->t.a2t;
|
|
tempii->t.a1c=tempi->t.a2c;
|
|
tempii->ic_data=lb_true;
|
|
tempii->ic_code=IC_BR_NOT_ZERO;
|
|
tempii=OptBrNotZero(cc,tempii);
|
|
} else
|
|
tempii=tempi;
|
|
if (tempi->ic_flags&ICF_POP_CMP && tempi->t.a1t->ic_code==IC_NOP1) {
|
|
tempi->t.a1t=tempi->t.a1t->t.a1t;
|
|
tempi->ic_flags&=~ICF_POP_CMP;
|
|
}
|
|
return tempii;
|
|
}
|
|
return tempi;
|
|
}
|
|
|
|
U0 OptFixSizeOf(CIntermediateCode *tempi1,
|
|
CIntermediateCode *tempi_push,CHashClass *tempcc)
|
|
{
|
|
if (tempi1->ic_code==IC_MUL && tempi1->t.a2t->ic_code==IC_SIZEOF) {
|
|
tempi1->t.a2t->ic_code=IC_IMM_I64;
|
|
tempi1->t.a2t->ic_class=tempcc;
|
|
tempi_push->ic_class=tempcc;
|
|
if (tempcc->ptr_stars_cnt) {
|
|
tempcc--;
|
|
if (tempcc->size==1)
|
|
goto here;
|
|
tempi1->t.a2t->ic_data=tempcc->size;
|
|
} else {
|
|
here:
|
|
if (tempi_push==tempi1)
|
|
tempi1->t.a2t->ic_data=1;
|
|
else {
|
|
OptSetNOP1(tempi1->t.a2t);
|
|
OptSetNOP1(tempi1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
I64 CmpRawType(CHashClass *tempc)
|
|
{
|
|
if (tempc) {
|
|
tempc=OptClassFwd(tempc);
|
|
return tempc->raw_type;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
I64 CmpRawTypePointed(CHashClass *tempc)
|
|
{
|
|
if (tempc) {
|
|
if (tempc->ptr_stars_cnt)
|
|
tempc--;
|
|
tempc=OptClassFwd(tempc);
|
|
return tempc->raw_type;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
U0 CmpMinTypePointed(CIntermediateCode *tempi,I64 pt1)
|
|
{
|
|
I64 pt;
|
|
if ((pt=tempi->a1_type_pointed_to) && pt!=RT_F64 && 0<pt1<pt)
|
|
tempi->a1_type_pointed_to=pt;
|
|
}
|
|
|
|
U0 CmpF1PushPop(CIntermediateCode *tempi,CIntermediateCode *tempi2)
|
|
{
|
|
if (intermediate_code_table[tempi2->ic_code].fpop||
|
|
tempi2->ic_flags&ICF_R_TO_F64)
|
|
Bts(&tempi->ic_flags,ICf_DONT_PUSH_FLOAT0);
|
|
}
|
|
|
|
U0 CmpF2PushPop(CIntermediateCode *tempi,
|
|
CIntermediateCode *tempi1,CIntermediateCode *tempi2)
|
|
{
|
|
if ((tempi2->ic_code==IC_MOV || tempi2->ic_code==IC_IMM_F64) &&
|
|
!(tempi2->ic_flags&ICF_R_TO_F64) &&
|
|
(intermediate_code_table[tempi1->ic_code].fpop ||
|
|
tempi1->ic_flags&ICF_R_TO_F64))
|
|
Bts(&tempi->ic_flags,ICf_DONT_PUSH_FLOAT0);
|
|
else if ((intermediate_code_table[tempi2->ic_code].fpop ||
|
|
tempi2->ic_flags&ICF_R_TO_F64)&&
|
|
!(tempi1->ic_flags&ICF_R_TO_F64))
|
|
Bts(&tempi->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;
|
|
}
|