%{
enum { EAX=0, ECX=1, EDX=2, EBX=3, ESI=6, EDI=7 };
#include "c.h"
#define NODEPTR_TYPE Node
#define OP_LABEL(p) ((p)->op)
#define LEFT_CHILD(p) ((p)->kids[0])
#define RIGHT_CHILD(p) ((p)->kids[1])
#define STATE_LABEL(p) ((p)->x.state)
static void address(Symbol, Symbol, long);
static void blkfetch(int, int, int, int);
static void blkloop(int, int, int, int, int, int[]);
static void blkstore(int, int, int, int);
static void defaddress(Symbol);
static void defconst(int, int, Value);
static void defstring(int, char *);
static void defsymbol(Symbol);
static void defsymbolelf(Symbol);
static void doarg(Node);
static void emit2(Node);
static void export(Symbol);
static void clobber(Node);
static void function(Symbol, Symbol [], Symbol [], int);
static void global(Symbol);
static void import(Symbol);
static void local(Symbol);
static void progbeg(int, char **);
static void progend(void);
static void segment(int);
static void space(int);
static void target(Node);
static int ckstack(Node, int);
static int memop(Node);
static int hasargs (Node);
static int sametree(Node, Node);
static void globalend(void);
static Symbol charreg[32], shortreg[32], intreg[32];
static Symbol charregw, shortregw, intregw, fltregw;
static Symbol fltreg[32];
static Symbol quo, rem;
static int cseg, profile = 0;
%}
%start stmt
%term CNSTF4=4113 CNSTF8=8209 CNSTF16=16401
%term CNSTI1=1045 CNSTI2=2069 CNSTI4=4117
%term CNSTP4=4119
%term CNSTU1=1046 CNSTU2=2070 CNSTU4=4118
%term ARGB=41
%term ARGF4=4129 ARGF8=8225 ARGF16=16417
%term ARGI4=4133
%term ARGP4=4135
%term ARGU4=4134
%term ASGNB=57
%term ASGNF4=4145 ASGNF8=8241 ASGNF16=16433
%term ASGNI1=1077 ASGNI2=2101 ASGNI4=4149
%term ASGNP4=4151
%term ASGNU1=1078 ASGNU2=2102 ASGNU4=4150
%term INDIRB=73
%term INDIRF4=4161 INDIRF8=8257 INDIRF16=16449
%term INDIRI1=1093 INDIRI2=2117 INDIRI4=4165
%term INDIRP4=4167
%term INDIRU1=1094 INDIRU2=2118 INDIRU4=4166
%term CVFF4=4209 CVFF8=8305 CVFF16=16497
%term CVFI4=4213
%term CVIF4=4225 CVIF8=8321 CVIF16=16513
%term CVII1=1157 CVII2=2181 CVII4=4229
%term CVIU1=1158 CVIU2=2182 CVIU4=4230
%term CVPU4=4246
%term CVUI1=1205 CVUI2=2229 CVUI4=4277
%term CVUP4=4279
%term CVUU1=1206 CVUU2=2230 CVUU4=4278
%term NEGF4=4289 NEGF8=8385 NEGF16=16577
%term NEGI4=4293
%term CALLB=217
%term CALLF4=4305 CALLF8=8401 CALLF16=16593
%term CALLI4=4309
%term CALLP4=4311
%term CALLU4=4310
%term CALLV=216
%term RETF4=4337 RETF8=8433 RETF16=16625
%term RETI4=4341
%term RETP4=4343
%term RETU4=4342
%term RETV=248
%term ADDRGP4=4359
%term ADDRFP4=4375
%term ADDRLP4=4391
%term ADDF4=4401 ADDF8=8497 ADDF16=16689
%term ADDI4=4405
%term ADDP4=4407
%term ADDU4=4406
%term SUBF4=4417 SUBF8=8513 SUBF16=16705
%term SUBI4=4421
%term SUBP4=4423
%term SUBU4=4422
%term LSHI4=4437
%term LSHU4=4438
%term MODI4=4453
%term MODU4=4454
%term RSHI4=4469
%term RSHU4=4470
%term BANDI4=4485
%term BANDU4=4486
%term BCOMI4=4501
%term BCOMU4=4502
%term BORI4=4517
%term BORU4=4518
%term BXORI4=4533
%term BXORU4=4534
%term DIVF4=4545 DIVF8=8641 DIVF16=16833
%term DIVI4=4549
%term DIVU4=4550
%term MULF4=4561 MULF8=8657 MULF16=16849
%term MULI4=4565
%term MULU4=4566
%term EQF4=4577 EQF8=8673 EQF16=16865
%term EQI4=4581
%term EQU4=4582
%term GEF4=4593 GEF8=8689 GEF16=16881
%term GEI4=4597
%term GEU4=4598
%term GTF4=4609 GTF8=8705 GTF16=16897
%term GTI4=4613
%term GTU4=4614
%term LEF4=4625 LEF8=8721 LEF16=16913
%term LEI4=4629
%term LEU4=4630
%term LTF4=4641 LTF8=8737 LTF16=16929
%term LTI4=4645
%term LTU4=4646
%term NEF4=4657 NEF8=8753 NEF16=16945
%term NEI4=4661
%term NEU4=4662
%term JUMPV=584
%term LABELV=600
%term LOADB=233
%term LOADF4=4321 LOADF8=8417 LOADF16=16609
%term LOADI1=1253 LOADI2=2277 LOADI4=4325
%term LOADP4=4327
%term LOADU1=1254 LOADU2=2278 LOADU4=4326
%term VREGP=711
%%
reg: INDIRI1(VREGP) "# read register\n"
reg: INDIRU1(VREGP) "# read register\n"
reg: INDIRI2(VREGP) "# read register\n"
reg: INDIRU2(VREGP) "# read register\n"
reg: INDIRI4(VREGP) "# read register\n"
reg: INDIRP4(VREGP) "# read register\n"
reg: INDIRU4(VREGP) "# read register\n"
freg: INDIRF4(VREGP) "# read register\n"
freg: INDIRF8(VREGP) "# read register\n"
stmt: ASGNI1(VREGP,reg) "# write register\n"
stmt: ASGNU1(VREGP,reg) "# write register\n"
stmt: ASGNI2(VREGP,reg) "# write register\n"
stmt: ASGNU2(VREGP,reg) "# write register\n"
stmt: ASGNF4(VREGP,reg) "# write register\n"
stmt: ASGNI4(VREGP,reg) "# write register\n"
stmt: ASGNP4(VREGP,reg) "# write register\n"
stmt: ASGNU4(VREGP,reg) "# write register\n"
stmt: ASGNF8(VREGP,reg) "# write register\n"
cnst: CNSTI1 "%a"
cnst: CNSTU1 "%a"
cnst: CNSTI2 "%a"
cnst: CNSTU2 "%a"
cnst: CNSTI4 "%a"
cnst: CNSTU4 "%a"
cnst: CNSTP4 "%a"
con: cnst "$%0"
stmt: reg ""
stmt: freg ""
acon: ADDRGP4 "%a"
acon: cnst "%0"
baseaddr: ADDRGP4 "%a"
base: reg "(%0)"
base: ADDI4(reg,acon) "%1(%0)"
base: ADDP4(reg,acon) "%1(%0)"
base: ADDU4(reg,acon) "%1(%0)"
base: ADDRFP4 "%a(%%ebp)"
base: ADDRLP4 "%a(%%ebp)"
index: reg "%0"
index: LSHI4(reg,con1) "%0,2"
index: LSHI4(reg,con2) "%0,4"
index: LSHI4(reg,con3) "%0,8"
index: LSHU4(reg,con1) "%0,2"
index: LSHU4(reg,con2) "%0,4"
index: LSHU4(reg,con3) "%0,8"
con0: CNSTI4 "1" range(a, 0, 0)
con0: CNSTU4 "1" range(a, 0, 0)
con1: CNSTI4 "1" range(a, 1, 1)
con1: CNSTU4 "1" range(a, 1, 1)
con2: CNSTI4 "2" range(a, 2, 2)
con2: CNSTU4 "2" range(a, 2, 2)
con3: CNSTI4 "3" range(a, 3, 3)
con3: CNSTU4 "3" range(a, 3, 3)
addr: base "%0"
addr: baseaddr "%0"
addr: ADDI4(index,baseaddr) "%1(,%0)"
addr: ADDP4(index,baseaddr) "%1(,%0)"
addr: ADDU4(index,baseaddr) "%1(,%0)"
addr: ADDI4(reg,baseaddr) "%1(%0)"
addr: ADDP4(reg,baseaddr) "%1(%0)"
addr: ADDU4(reg,baseaddr) "%1(%0)"
addr: ADDI4(index,reg) "(%1,%0)"
addr: ADDP4(index,reg) "(%1,%0)"
addr: ADDU4(index,reg) "(%1,%0)"
addr: index "(,%0)"
mem1: INDIRI1(addr) "%0"
mem1: INDIRU1(addr) "%0"
mem2: INDIRI2(addr) "%0"
mem2: INDIRU2(addr) "%0"
mem4: INDIRI4(addr) "%0"
mem4: INDIRU4(addr) "%0"
mem4: INDIRP4(addr) "%0"
rc: reg "%0"
rc: con "%0"
mr: reg "%0"
mr: mem4 "%0"
mr1: reg "%0"
mr1: mem1 "%0"
mr2: reg "%0"
mr2: mem2 "%0"
mrc: mem4 "%0" 1
mrc: mem1 "%0" 1
mrc: mem2 "%0" 1
mrc: rc "%0"
reg: addr "\tleal %0,%c\n" 1
reg: mr "\tmovl %0,%c\n" 1
reg: mr1 "\tmovb %0,%c\n" 1
reg: mr2 "\tmovw %0,%c\n" 1
reg: con "\tmovl %0,%c\n" 1
reg: LOADI1(reg) "# move\n" 1
reg: LOADI2(reg) "# move\n" 1
reg: LOADI4(reg) "# move\n" move(a)
reg: LOADU1(reg) "# move\n" 1
reg: LOADU2(reg) "# move\n" 1
reg: LOADU4(reg) "# move\n" move(a)
reg: LOADP4(reg) "# move\n" move(a)
reg: ADDI4(reg,mrc) "?\tmovl %0,%c\n\taddl %1,%c\n" 1
reg: ADDP4(reg,mrc) "?\tmovl %0,%c\n\taddl %1,%c\n" 1
reg: ADDU4(reg,mrc) "?\tmovl %0,%c\n\taddl %1,%c\n" 1
reg: SUBI4(reg,mrc) "?\tmovl %0,%c\n\tsubl %1,%c\n" 1
reg: SUBP4(reg,mrc) "?\tmovl %0,%c\n\tsubl %1,%c\n" 1
reg: SUBU4(reg,mrc) "?\tmovl %0,%c\n\tsubl %1,%c\n" 1
reg: BANDI4(reg,mrc) "?\tmovl %0,%c\n\tandl %1,%c\n" 1
reg: BORI4(reg,mrc) "?\tmovl %0,%c\n\torl %1,%c\n" 1
reg: BXORI4(reg,mrc) "?\tmovl %0,%c\n\txorl %1,%c\n" 1
reg: BANDU4(reg,mrc) "?\tmovl %0,%c\n\tandl %1,%c\n" 1
reg: BORU4(reg,mrc) "?\tmovl %0,%c\n\torl %1,%c\n" 1
reg: BXORU4(reg,mrc) "?\tmovl %0,%c\n\txorl %1,%c\n" 1
stmt: ASGNI4(addr,ADDI4(mem4,con1)) "\tincl %1\n" memop(a)
stmt: ASGNI4(addr,ADDU4(mem4,con1)) "\tincl %1\n" memop(a)
stmt: ASGNP4(addr,ADDP4(mem4,con1)) "\tincl %1\n" memop(a)
stmt: ASGNI4(addr,SUBI4(mem4,con1)) "\tdecl %1\n" memop(a)
stmt: ASGNI4(addr,SUBU4(mem4,con1)) "\tdecl %1\n" memop(a)
stmt: ASGNP4(addr,SUBP4(mem4,con1)) "\tdecl %1\n" memop(a)
stmt: ASGNI4(addr,ADDI4(mem4,rc)) "\taddl %2,%1\n" memop(a)
stmt: ASGNI4(addr,SUBI4(mem4,rc)) "\tsubl %2,%1\n" memop(a)
stmt: ASGNU4(addr,ADDU4(mem4,rc)) "\taddl %2,%1\n" memop(a)
stmt: ASGNU4(addr,SUBU4(mem4,rc)) "\tsubl %2,%1\n" memop(a)
stmt: ASGNI4(addr,BANDI4(mem4,rc)) "\tandl %2,%1\n" memop(a)
stmt: ASGNI4(addr,BORI4(mem4,rc)) "\torl %2,%1\n" memop(a)
stmt: ASGNI4(addr,BXORI4(mem4,rc)) "\txorl %2,%1\n" memop(a)
stmt: ASGNU4(addr,BANDU4(mem4,rc)) "\tandl %2,%1\n" memop(a)
stmt: ASGNU4(addr,BORU4(mem4,rc)) "\torl %2,%1\n" memop(a)
stmt: ASGNU4(addr,BXORU4(mem4,rc)) "\txorl %2,%1\n" memop(a)
reg: BCOMI4(reg) "?\tmovl %0,%c\n\tnotl %c\n" 2
reg: BCOMU4(reg) "?\tmovl %0,%c\n\tnotl %c\n" 2
reg: NEGI4(reg) "?\tmovl %0,%c\n\tnegl %c\n" 2
stmt: ASGNI4(addr,BCOMI4(mem4)) "\tnotl %1\n" memop(a)
stmt: ASGNU4(addr,BCOMU4(mem4)) "\tnotl %1\n" memop(a)
stmt: ASGNI4(addr,NEGI4(mem4)) "\tnegl %1\n" memop(a)
reg: LSHI4(reg,rc5) "?\tmovl %0,%c\n\tsall %1,%c\n" 2
reg: LSHU4(reg,rc5) "?\tmovl %0,%c\n\tshll %1,%c\n" 2
reg: RSHI4(reg,rc5) "?\tmovl %0,%c\n\tsarl %1,%c\n" 2
reg: RSHU4(reg,rc5) "?\tmovl %0,%c\n\tshrl %1,%c\n" 2
stmt: ASGNI4(addr,LSHI4(mem4,rc5)) "\tsall %2,%1\n" memop(a)
stmt: ASGNI4(addr,LSHU4(mem4,rc5)) "\tshll %2,%1\n" memop(a)
stmt: ASGNI4(addr,RSHI4(mem4,rc5)) "\tsarl %2,%1\n" memop(a)
stmt: ASGNI4(addr,RSHU4(mem4,rc5)) "\tshrl %2,%1\n" memop(a)
rc5: CNSTI4 "$%a" range(a, 0, 31)
rc5: reg "%%cl"
reg: MULI4(reg,mrc) "?\tmovl %0,%c\n\timull %1,%c\n" 14
reg: MULI4(con,mr) "\timul %0,%1,%c\n" 13
reg: MULU4(reg,mr) "\tmull %1\n" 13
reg: DIVU4(reg,reg) "\txorl %%edx,%%edx\n\tdivl %1\n"
reg: MODU4(reg,reg) "\txorl %%edx,%%edx\n\tdivl %1\n"
reg: DIVI4(reg,reg) "\tcdq\n\tidivl %1\n"
reg: MODI4(reg,reg) "\tcdq\n\tidivl %1\n"
reg: CVPU4(reg) "\tmovl %0,%c\n" move(a)
reg: CVUP4(reg) "\tmovl %0,%c\n" move(a)
reg: CVII4(INDIRI1(addr)) "\tmovsbl %0,%c\n" 3
reg: CVII4(INDIRI2(addr)) "\tmovswl %0,%c\n" 3
reg: CVUU4(INDIRU1(addr)) "movzbl %0,%c\n" 3
reg: CVUU4(INDIRU2(addr)) "movzwl %0,%c\n" 3
reg: CVII4(reg) "# extend\n" 3
reg: CVIU4(reg) "# extend\n" 3
reg: CVUI4(reg) "# extend\n" 3
reg: CVUU4(reg) "# extend\n" 3
reg: CVII1(reg) "# truncate\n" 1
reg: CVII2(reg) "# truncate\n" 1
reg: CVUU1(reg) "# truncate\n" 1
reg: CVUU2(reg) "# truncate\n" 1
mrca: mem4 "%0"
mrca: rc "%0"
mrca: ADDRGP4 "$%a"
stmt: ASGNI1(addr,rc) "\tmovb %1,%0\n" 1
stmt: ASGNI2(addr,rc) "\tmovw %1,%0\n" 1
stmt: ASGNI4(addr,rc) "\tmovl %1,%0\n" 1
stmt: ASGNU1(addr,rc) "\tmovb %1,%0\n" 1
stmt: ASGNU2(addr,rc) "\tmovw %1,%0\n" 1
stmt: ASGNU4(addr,rc) "\tmovl %1,%0\n" 1
stmt: ASGNP4(addr,rc) "\tmovl %1,%0\n" 1
stmt: ARGI4(mrca) "\tpushl %0\n" 1
stmt: ARGU4(mrca) "\tpushl %0\n" 1
stmt: ARGP4(mrca) "\tpushl %0\n" 1
stmt: ASGNB(reg,INDIRB(reg)) "\tmovl $%a,%%ecx\n\trep\n\tmovsb\n"
stmt: ARGB(INDIRB(reg)) "\tsubl $%a,%%esp\n\tmovl %%esp,%%edi\n\tmovl $%a,%%ecx\n\trep\n\tmovsb\n"
memf: INDIRF8(addr) "l %0"
memf: INDIRF4(addr) "s %0"
memf: CVFF8(INDIRF4(addr)) "s %0"
memf: CVFF4(INDIRF8(addr)) "l %0"
freg: memf "\tfld%0\n" 3
stmt: ASGNF8(addr,freg) "\tfstpl %0\n" 7
stmt: ASGNF4(addr,freg) "\tfstps %0\n" 7
stmt: ASGNF4(addr,CVFF4(freg)) "\tfstps %0\n" 7
stmt: ARGF8(freg) "\tsubl $8,%%esp\n\tfstpl (%%esp)\n"
stmt: ARGF4(freg) "\tsubl $4,%%esp\n\tfstps (%%esp)\n"
freg: NEGF8(freg) "\tfchs\n"
freg: NEGF4(freg) "\tfchs\n"
flt: memf "%0"
flt: freg "p %%st(1),%%st"
freg: ADDF8(freg,flt) "\tfadd%1\n"
freg: ADDF4(freg,flt) "\tfadd%1\n"
freg: DIVF8(freg,flt) "\tfdiv%1\n"
freg: DIVF4(freg,flt) "\tfdiv%1\n"
freg: MULF8(freg,flt) "\tfmul%1\n"
freg: MULF4(freg,flt) "\tfmul%1\n"
freg: SUBF8(freg,flt) "\tfsub%1\n"
freg: SUBF4(freg,flt) "\tfsub%1\n"
freg: CVFF8(freg) "# CVFF8\n"
freg: CVFF4(freg) "\tsub $4,%%esp\n\tfstps (%%esp)\n\tflds (%%esp)\n\taddl $4,%%esp\n" 12
stmt: ASGNI4(addr,CVFI4(freg)) "\tfistpl %0\n" 29
reg: CVFI4(freg) "\tsubl $4,%%esp\n\tfistpl 0(%%esp)\n\tpopl %c\n" 31
freg: CVIF8(INDIRI4(addr)) "\tfildl %0\n" 10
freg: CVIF8(reg) "\tpushl %0\n\tfildl (%%esp)\n\taddl $4,%%esp\n" 12
freg: CVIF4(INDIRI4(addr)) "\tfildl %0\n" 10
freg: CVIF4(reg) "\tpushl %0\n\tfildl (%%esp)\n\taddl $4,%%esp\n" 12
addrj: ADDRGP4 "%a"
addrj: reg "*%0" 2
addrj: mem4 "*%0" 2
stmt: LABELV "%a:\n"
stmt: JUMPV(addrj) "\tjmp %0\n" 3
stmt: EQI4(mem4,rc) "\tcmpl %1,%0\n\tje %a\n" 5
stmt: GEI4(mem4,rc) "\tcmpl %1,%0\n\tjge %a\n" 5
stmt: GTI4(mem4,rc) "\tcmpl %1,%0\n\tjg %a\n" 5
stmt: LEI4(mem4,rc) "\tcmpl %1,%0\n\tjle %a\n" 5
stmt: LTI4(mem4,rc) "\tcmpl %1,%0\n\tjl %a\n" 5
stmt: NEI4(mem4,rc) "\tcmpl %1,%0\n\tjne %a\n" 5
stmt: GEU4(mem4,rc) "\tcmpl %1,%0\n\tjae %a\n" 5
stmt: GTU4(mem4,rc) "\tcmpl %1,%0\n\tja %a\n" 5
stmt: LEU4(mem4,rc) "\tcmpl %1,%0\n\tjbe %a\n" 5
stmt: LTU4(mem4,rc) "\tcmpl %1,%0\n\tjb %a\n" 5
stmt: EQI4(reg,mrc) "\tcmpl %1,%0\n\tje %a\n" 4
stmt: GEI4(reg,mrc) "\tcmpl %1,%0\n\tjge %a\n" 4
stmt: GTI4(reg,mrc) "\tcmpl %1,%0\n\tjg %a\n" 4
stmt: LEI4(reg,mrc) "\tcmpl %1,%0\n\tjle %a\n" 4
stmt: LTI4(reg,mrc) "\tcmpl %1,%0\n\tjl %a\n" 4
stmt: NEI4(reg,mrc) "\tcmpl %1,%0\n\tjne %a\n" 4
stmt: EQU4(reg,mrc) "\tcmpl %1,%0\n\tje %a\n" 4
stmt: GEU4(reg,mrc) "\tcmpl %1,%0\n\tjae %a\n" 4
stmt: GTU4(reg,mrc) "\tcmpl %1,%0\n\tja %a\n" 4
stmt: LEU4(reg,mrc) "\tcmpl %1,%0\n\tjbe %a\n" 4
stmt: LTU4(reg,mrc) "\tcmpl %1,%0\n\tjb %a\n" 4
stmt: NEU4(reg,mrc) "\tcmpl %1,%0\n\tjne %a\n" 4
stmt: EQI4(BANDU4(mr,con),con0) "\ttestl\t%1,%0\n\tje\t%a\n" 3
stmt: NEI4(BANDU4(mr,con),con0) "\ttestl\t%1,%0\n\tjne\t%a\n"
stmt: EQI4(BANDU4(CVII2(INDIRI2(addr)),con),con0) "\ttestw\t%1,%0\n\tje\t%a\n"
stmt: NEI4(BANDU4(CVII2(INDIRI2(addr)),con),con0) "\ttestw\t%1,%0\n\tjne\t%a\n"
stmt: EQI4(BANDU4(CVIU2(INDIRI2(addr)),con),con0) "\ttestw\t%1,%0\n\tje\t%a\n"
stmt: NEI4(BANDU4(CVIU2(INDIRI2(addr)),con),con0) "\ttestw\t%1,%0\n\tjne\t%a\n"
stmt: EQI4(BANDU4(CVII1(INDIRI1(addr)),con),con0) "\ttestb\t%1,%0\n\tje\t%a\n"
cmpf: INDIRF8(addr) "l %0"
cmpf: INDIRF4(addr) "s %0"
cmpf: CVFF8(INDIRF4(addr)) "s %0"
cmpf: freg "p"
stmt: EQF8(cmpf,freg) "\tfcomp%0\n\tfstsw %%ax\n\tsahf\n\tje %a\n"
stmt: GEF8(cmpf,freg) "\tfcomp%0\n\tfstsw %%ax\n\tsahf\n\tjbe %a\n"
stmt: GTF8(cmpf,freg) "\tfcomp%0\n\tfstsw %%ax\n\tsahf\n\tjb %a\n"
stmt: LEF8(cmpf,freg) "\tfcomp%0\n\tfstsw %%ax\n\tsahf\n\tjae %a\n"
stmt: LTF8(cmpf,freg) "\tfcomp%0\n\tfstsw %%ax\n\tsahf\n\tja %a\n"
stmt: NEF8(cmpf,freg) "\tfcomp%0\n\tfstsw %%ax\n\tsahf\n\tjne %a\n"
stmt: EQF4(cmpf,freg) "\tfcomp%0\n\tfstsw %%ax\n\tsahf\n\tje %a\n"
stmt: GEF4(cmpf,freg) "\tfcomp%0\n\tfstsw %%ax\n\tsahf\n\tjbe %a\n"
stmt: GTF4(cmpf,freg) "\tfcomp%0\n\tfstsw %%ax\n\tsahf\n\tjb %a\n"
stmt: LEF4(cmpf,freg) "\tfcomp%0\n\tfstsw %%ax\n\tsahf\n\tjae %a\n"
stmt: LTF4(cmpf,freg) "\tfcomp%0\n\tfstsw %%ax\n\tsahf\n\tja %a\n"
stmt: NEF4(cmpf,freg) "\tfcomp%0\n\tfstsw %%ax\n\tsahf\n\tjne %a\n"
freg: DIVF8(freg,CVIF8(INDIRI4(addr))) "\tfidivl\t%1\n"
freg: DIVF8(CVIF8(INDIRI4(addr)),freg) "\tfidivrl\t%0\n"
freg: DIVF8(freg,CVIF8(CVII2(INDIRI2(addr)))) "\tfidivs\t%1\n"
freg: DIVF8(CVIF8(CVII2(INDIRI2(addr))),freg) "\tfidivrs\t%0\n"
freg: MULF8(freg,CVIF8(INDIRI4(addr))) "\tfimull\t%1\n"
freg: MULF8(freg,CVIF8(CVII2(INDIRI2(addr)))) "\tfimuls\t%1\n"
freg: SUBF8(freg,CVIF8(INDIRI4(addr))) "\tfisubl\t%1\n"
freg: SUBF8(CVIF8(INDIRI4(addr)),freg) "\tfisubrl\t%0\n"
freg: SUBF8(freg,CVIF8(CVII2(INDIRI2(addr)))) "\tfisubs\t%1\n"
freg: SUBF8(CVIF8(CVII2(INDIRI2(addr))),freg) "\tfisubrs\t%0\n"
freg: ADDF8(freg,CVIF8(INDIRI4(addr))) "\tfiaddl\t%1\n"
freg: ADDF8(freg,CVIF8(CVII2(INDIRI2(addr)))) "\tfiadds\t%1\n"
freg: ADDF8(freg,CVFF8(INDIRF4(addr))) "\tfdivs\t%1\n"
freg: SUBF8(freg,CVFF8(INDIRF4(addr))) "\tfsubs\t%1\n"
freg: MULF8(freg,CVFF8(INDIRF4(addr))) "\tfmuls\t%1\n"
freg: DIVF8(freg,CVFF8(INDIRF4(addr))) "\tfdivs\t%1\n"
freg: LOADF8(memf) "\tfld%0\n"
stmt: CALLV(addrj) "\tcall %0\n\taddl $%a,%%esp\n" hasargs(a)
reg: CALLI4(addrj) "\tcall %0\n\taddl $%a,%%esp\n" hasargs(a)
reg: CALLU4(addrj) "\tcall %0\n\taddl $%a,%%esp\n" hasargs(a)
reg: CALLP4(addrj) "\tcall %0\n\taddl $%a,%%esp\n" hasargs(a)
freg: CALLF4(addrj) "\tcall %0\n\taddl $%a,%%esp\n" hasargs(a)
stmt: CALLF4(addrj) "\tcall %0\n\taddl $%a,%%esp\n\tfstp %%st(0)\n" hasargs(a)
freg: CALLF8(addrj) "\tcall %0\n\taddl $%a,%%esp\n" hasargs(a)
stmt: CALLF8(addrj) "\tcall %0\n\taddl $%a,%%esp\n\tfstp %%st(0)\n" hasargs(a)
stmt: CALLV(addrj) "\tcall %0\n" 1
reg: CALLI4(addrj) "\tcall %0\n" 1
reg: CALLU4(addrj) "\tcall %0\n" 1
reg: CALLP4(addrj) "\tcall %0\n" 1
freg: CALLF4(addrj) "\tcall %0\n" 1
stmt: CALLF4(addrj) "\tcall %0\n\tfstp %%st(0)\n" 1
freg: CALLF8(addrj) "\tcall %0\n" 1
stmt: CALLF8(addrj) "\tcall %0\n\tfstp %%st(0)\n" 1
stmt: RETI4(reg) "# ret\n"
stmt: RETU4(reg) "# ret\n"
stmt: RETP4(reg) "# ret\n"
stmt: RETF4(freg) "# ret\n"
stmt: RETF8(freg) "# ret\n"
%%
static void progbeg(int argc, char *argv[]) {
int i;
{
union {
char c;
int i;
} u;
u.i = 0;
u.c = 1;
swap = ((int)(u.i == 1)) != IR->little_endian;
}
parseflags(argc, argv);
for (i = 0; i < argc; i++)
if (!strcmp(argv[i], "-p") || !strcmp(argv[i], "-pg"))
profile = 1;
intreg[EAX] = mkreg("%%eax", EAX, 1, IREG);
intreg[EDX] = mkreg("%%edx", EDX, 1, IREG);
intreg[ECX] = mkreg("%%ecx", ECX, 1, IREG);
intreg[EBX] = mkreg("%%ebx", EBX, 1, IREG);
intreg[ESI] = mkreg("%%esi", ESI, 1, IREG);
intreg[EDI] = mkreg("%%edi", EDI, 1, IREG);
shortreg[EAX] = mkreg("%%ax", EAX, 1, IREG);
shortreg[ECX] = mkreg("%%cx", ECX, 1, IREG);
shortreg[EDX] = mkreg("%%dx", EDX, 1, IREG);
shortreg[EBX] = mkreg("%%bx", EBX, 1, IREG);
shortreg[ESI] = mkreg("%%si", ESI, 1, IREG);
shortreg[EDI] = mkreg("%%di", EDI, 1, IREG);
charreg[EAX] = mkreg("%%al", EAX, 1, IREG);
charreg[ECX] = mkreg("%%cl", ECX, 1, IREG);
charreg[EDX] = mkreg("%%dl", EDX, 1, IREG);
charreg[EBX] = mkreg("%%bl", EBX, 1, IREG);
for (i = 0; i < 8; i++)
fltreg[i] = mkreg("%d", i, 0, FREG);
charregw = mkwildcard(charreg);
shortregw = mkwildcard(shortreg);
intregw = mkwildcard(intreg);
fltregw = mkwildcard(fltreg);
tmask[IREG] = (1<<EDI) | (1<<ESI) | (1<<EBX)
| (1<<EDX) | (1<<ECX) | (1<<EAX);
vmask[IREG] = 0;
tmask[FREG] = 0xff;
vmask[FREG] = 0;
cseg = 0;
print("\t.text\n");
quo = mkreg("%%eax", EAX, 1, IREG);
quo->x.regnode->mask |= 1<<EDX;
rem = mkreg("%%edx", EDX, 1, IREG);
rem->x.regnode->mask |= 1<<EAX;
}
static Symbol rmap(int opk) {
switch (optype(opk)) {
case B: case P:
return intregw;
case I: case U:
if (opsize(opk) == 1)
return charregw;
else if (opsize(opk) == 2)
return shortregw;
else
return intregw;
case F:
return fltregw;
default:
return 0;
}
}
static void segment(int n) {
if (n == cseg)
return;
cseg = n;
if (cseg == CODE)
print("\t.text\n");
else if (cseg == BSS)
print("\t.bss\n");
else if (cseg == DATA || cseg == LIT)
print("\t.data\n");
}
static void progend(void) {
segment(0);
}
static void target(Node p) {
assert(p);
switch (specific(p->op)) {
case RSH+I: case RSH+U: case LSH+I: case LSH+U:
if (generic(p->kids[1]->op) != CNST
&& !( generic(p->kids[1]->op) == INDIR
&& specific(p->kids[1]->kids[0]->op) == VREG+P
&& p->kids[1]->syms[RX]->u.t.cse
&& generic(p->kids[1]->syms[RX]->u.t.cse->op) == CNST
)) {
rtarget(p, 1, intreg[ECX]);
setreg(p, intreg[EAX]);
}
break;
case MUL+U:
setreg(p, quo);
rtarget(p, 0, intreg[EAX]);
break;
case DIV+I: case DIV+U:
setreg(p, quo);
rtarget(p, 0, intreg[EAX]);
rtarget(p, 1, intreg[ECX]);
break;
case MOD+I: case MOD+U:
setreg(p, rem);
rtarget(p, 0, intreg[EAX]);
rtarget(p, 1, intreg[ECX]);
break;
case ASGN+B:
rtarget(p, 0, intreg[EDI]);
rtarget(p->kids[1], 0, intreg[ESI]);
break;
case ARG+B:
rtarget(p->kids[0], 0, intreg[ESI]);
break;
case CVF+I:
setreg(p, intreg[EAX]);
break;
case CALL+I: case CALL+U: case CALL+P: case CALL+V:
setreg(p, intreg[EAX]);
break;
case RET+I: case RET+U: case RET+P:
rtarget(p, 0, intreg[EAX]);
break;
}
}
static void clobber(Node p) {
static int nstack = 0;
assert(p);
nstack = ckstack(p, nstack);
switch (specific(p->op)) {
case ASGN+B: case ARG+B:
spill(1<<ECX | 1<<ESI | 1<<EDI, IREG, p);
break;
case EQ+F: case LE+F: case GE+F: case LT+F: case GT+F: case NE+F:
spill(1<<EAX, IREG, p);
break;
case CALL+F:
spill(1<<EDX | 1<<EAX, IREG, p);
break;
}
}
#define isfp(p) (optype((p)->op)==F)
static int ckstack(Node p, int n) {
int i;
for (i = 0; i < NELEMS(p->x.kids) && p->x.kids[i]; i++)
if (isfp(p->x.kids[i]))
n--;
if (isfp(p) && p->count > 0)
n++;
if (n > 8)
error("expression too complicated\n");
debug(fprint(stderr, "(ckstack(%x)=%d)\n", p, n));
assert(n >= 0);
return n;
}
static int hasargs(Node p) {
assert(p);
assert(generic(p->op) == CALL);
assert(p->syms[0]);
if (p->syms[0]->u.c.v.i > 0)
return 0;
return LBURG_MAX;
}
static int memop(Node p) {
assert(p);
assert(generic(p->op) == ASGN);
assert(p->kids[0]);
assert(p->kids[1]);
if (generic(p->kids[1]->kids[0]->op) == INDIR
&& sametree(p->kids[0], p->kids[1]->kids[0]->kids[0]))
return 3;
else
return LBURG_MAX;
}
static int sametree(Node p, Node q) {
return p == NULL && q == NULL
|| p && q && p->op == q->op && p->syms[0] == q->syms[0]
&& sametree(p->kids[0], q->kids[0])
&& sametree(p->kids[1], q->kids[1]);
}
static void emit2(Node p) {
int op = specific(p->op);
#define preg(f) ((f)[getregnum(p->x.kids[0])]->x.name)
if (op == CVI+I && opsize(p->op) == 4 && opsize(p->x.kids[0]->op) == 1)
print("\tmovsbl\t%s,%s\n", preg(charreg), p->syms[RX]->x.name);
else if (op == CVI+U && opsize(p->op) == 4 && opsize(p->x.kids[0]->op) == 1)
print("\tmovsbl\t%s,%s\n", preg(charreg), p->syms[RX]->x.name);
else if (op == CVI+I && opsize(p->op) == 4 && opsize(p->x.kids[0]->op) == 2)
print("\tmovswl\t%s,%s\n", preg(shortreg), p->syms[RX]->x.name);
else if (op == CVI+U && opsize(p->op) == 4 && opsize(p->x.kids[0]->op) == 2)
print("\tmovswl\t%s,%s\n", preg(shortreg), p->syms[RX]->x.name);
else if (op == CVU+I && opsize(p->op) == 4 && opsize(p->x.kids[0]->op) == 1)
print("\tmovzbl\t%s,%s\n", preg(charreg), p->syms[RX]->x.name);
else if (op == CVU+U && opsize(p->op) == 4 && opsize(p->x.kids[0]->op) == 1)
print("\tmovzbl\t%s,%s\n", preg(charreg), p->syms[RX]->x.name);
else if (op == CVU+I && opsize(p->op) == 4 && opsize(p->x.kids[0]->op) == 2)
print("\tmovzwl\t%s,%s\n", preg(shortreg), p->syms[RX]->x.name);
else if (op == CVU+U && opsize(p->op) == 4 && opsize(p->x.kids[0]->op) == 2)
print("\tmovzwl\t%s,%s\n", preg(shortreg), p->syms[RX]->x.name);
else if (generic(op) == CVI || generic(op) == CVU || generic(op) == LOAD) {
char *dst = intreg[getregnum(p)]->x.name;
char *src = preg(intreg);
assert(opsize(p->op) <= opsize(p->x.kids[0]->op));
if (dst != src)
print("\tmovl\t%s,%s\n", src, dst);
}
}
static void doarg(Node p) {
assert(p && p->syms[0]);
mkactual(4, p->syms[0]->u.c.v.i);
}
static void blkfetch(int k, int off, int reg, int tmp) {}
static void blkstore(int k, int off, int reg, int tmp) {}
static void blkloop(int dreg, int doff, int sreg, int soff,
int size, int tmps[]) {}
static void local(Symbol p) {
if (isfloat(p->type))
p->sclass = AUTO;
if (askregvar(p, rmap(ttob(p->type))) == 0)
mkauto(p);
}
static void function(Symbol f, Symbol caller[], Symbol callee[], int n) {
int i;
print("\t.type\t%s,@function\n", f->x.name);
print("%s:\n", f->x.name);
print("\tpushl\t%%ebp\n");
if (profile) {
static int profile_label;
print("\tmovl\t%%esp,%%ebp\n");
segment(DATA);
print("\t.align 4\nLP%d:\n\t.long\t0\n", profile_label);
segment(CODE);
print("\tmovl\t$LP%d,%%edx\n\tcall\tmcount\n", profile_label);
profile_label++;
}
print("\tpushl\t%%ebx\n");
print("\tpushl\t%%esi\n");
print("\tpushl\t%%edi\n");
print("\tmovl\t%%esp,%%ebp\n");
usedmask[0] = usedmask[1] = 0;
freemask[0] = freemask[1] = ~(unsigned)0;
offset = 16 + 4;
for (i = 0; callee[i]; i++) {
Symbol p = callee[i];
Symbol q = caller[i];
assert(q);
p->x.offset = q->x.offset = offset;
p->x.name = q->x.name = stringf("%d", p->x.offset);
p->sclass = q->sclass = AUTO;
offset += roundup(q->type->size, 4);
}
assert(caller[i] == 0);
offset = maxoffset = 0;
gencode(caller, callee);
framesize = roundup(maxoffset, 4);
if (framesize > 0)
print("\tsubl\t$%d,%%esp\n", framesize);
emitcode();
print("\tmovl\t%%ebp,%%esp\n");
print("\tpopl\t%%edi\n");
print("\tpopl\t%%esi\n");
print("\tpopl\t%%ebx\n");
print("\tpopl\t%%ebp\n");
print("\tret\n");
i = genlabel(1);
print("L%d:\n", i);
print("\t.size\t%s,L%d-%s\n", f->x.name, i, f->x.name);
}
static void defsymbol(Symbol p) {
if (p->scope >= LOCAL && p->sclass == STATIC)
p->x.name = stringf("L%d", genlabel(1));
else if (p->generated)
p->x.name = stringf("L%s", p->name);
else if (p->scope == GLOBAL || p->sclass == EXTERN)
p->x.name = stringf("_%s", p->name);
/*
else if (p->scope == CONSTANTS
&& (isint(p->type) || isptr(p->type))
&& p->name[0] == '0' && p->name[1] == 'x')
p->x.name = stringf("0%sH", &p->name[2]);
*/
else
p->x.name = p->name;
}
static void defsymbolelf(Symbol p) {
if (p->scope >= LOCAL && p->sclass == STATIC)
p->x.name = stringf("L%d", genlabel(1));
else if (p->generated)
p->x.name = stringf("L%s", p->name);
else if (p->scope == GLOBAL || p->sclass == EXTERN)
p->x.name = stringf("%s", p->name);
/*
else if (p->scope == CONSTANTS
&& (isint(p->type) || isptr(p->type))
&& p->name[0] == '0' && p->name[1] == 'x')
p->x.name = stringf("0%sH", &p->name[2]);
*/
else
p->x.name = p->name;
}
static void address(Symbol q, Symbol p, long n) {
if (p->scope == GLOBAL
|| p->sclass == STATIC || p->sclass == EXTERN)
q->x.name = stringf("%s%s%d",
p->x.name, n >= 0 ? "+" : "", n);
else {
q->x.offset = p->x.offset + n;
q->x.name = stringd(q->x.offset);
}
}
static void defconst(int suffix, int size, Value v) {
if (suffix == I && size == 1)
print("\t.byte\t%d\n", v.u);
else if (suffix == I && size == 2)
print("\t.word\t%d\n", v.i);
else if (suffix == I && size == 4)
print("\t.long\t%d\n", v.i);
else if (suffix == U && size == 1)
print("\t.byte\t0x%x\n", v.u);
else if (suffix == U && size == 2)
print("\t.word\t0x%x\n", v.u);
else if (suffix == U && size == 4)
print("\t.long\t0x%x\n", v.u);
else if (suffix == P && size == 4)
print("\t.long\t0x%x\n", v.p);
else if (suffix == F && size == 4) {
float f = v.d;
print("\t.long\t0x%x\n", *(unsigned *)&f);
}
else if (suffix == F && size == 8) {
double d = v.d;
unsigned *p = (unsigned *)&d;
print("\t.long\t0x%x\n\t.long\t0x%x\n", p[swap], p[!swap]);
}
else assert(0);
}
static void defaddress(Symbol p) {
print("\t.long\t%s\n", p->x.name);
}
static void defstring(int n, char *str) {
char *s;
for (s = str; s < str + n; s++)
print("\t.byte\t%d\n", (*s)&0377);
}
static void export(Symbol p) {
print("\t.globl\t%s\n", p->x.name);
}
static void import(Symbol p) {
int oldseg = cseg;
if (p->ref > 0) {
segment(0);
print("\t.extern\t%s\n", p->x.name);
segment(oldseg);
}
}
static void global(Symbol p) {
print("\t.align\t%d\n", p->type->align > 4 ? 4 : p->type->align);
if (!p->generated)
print("\t.type\t%s,@%s\n", p->x.name,
isfunc(p->type) ? "function" : "object");
if (p->u.seg == BSS) {
if (p->sclass == STATIC)
print("\t.lcomm\t%s,%d\n", p->x.name, p->type->size);
else
print("\t.comm\t%s,%d\n", p->x.name, p->type->size);
} else {
if (!p->generated)
print("\t.size\t%s,%d\n", p->x.name, p->type->size);
print("%s:\n", p->x.name);
}
}
static void space(int n) {
if (cseg != BSS)
print("\t.space\t%d\n", n);
}
#include <stab.h>
static char *currentfile; /* current file name */
static int ntypes;
/*
* emittype - emit ty's type number, emitting its definition if necessary.
* Returns the output column number after emission; col is the approximate
* output column before emission and is used to emit continuation lines for long
* struct, union, and enum types. Continuations are not emitted for other types,
* even if the definition is long. lev is the depth of calls to emittype.
*/
static int emittype(ty, lev, col) Type ty; {
int tc = ty->x.typeno;
if (isconst(ty) || isvolatile(ty)) {
col = emittype(ty->type, lev, col);
ty->x.typeno = ty->type->x.typeno;
ty->x.printed = 1;
return col;
}
if (tc == 0) {
ty->x.typeno = tc = ++ntypes;
/* fprint(2,"`%t'=%d\n", ty, tc); */
}
print("%d", tc), col += 3;
if (ty->x.printed)
return col;
ty->x.printed = 1;
switch (ty->op) {
case VOID: /* void is defined as itself */
print("=%d", tc), col += 1+3;
break;
case CHAR: /* unsigned char is a subrange of int */
if (ty == unsignedchar)
print("=r1;0;255;"), col += 10;
else /* following pcc, char is a subrange of itself */
print("=r%d;-128;127;", tc), col += 2+3+10;
break;
case SHORT: /* short is a subrange of int */
if (ty == unsignedshort)
print("=r1;0;65535;"), col += 12;
else /* signed */
print("=r1;-32768;32767;"), col += 17;
break;
case INT: /* int is a subrange of itself */
print("=r1;%d;%d;", INT_MIN, INT_MAX), col += 4+11+1+10+1;
break;
case UNSIGNED: /* unsigned is a subrange of int */
print("=r1;0;-1;"), col += 9;
break;
case FLOAT:
case DOUBLE: /* float, double get sizes instead of ranges */
print("=r1;%d;0;", ty->size), col += 4+1+3;
break;
case POINTER:
print("=*"), col += 2;
col = emittype(ty->type, lev + 1, col);
break;
case FUNCTION:
print("=f"), col += 2;
col = emittype(ty->type, lev + 1, col);
break;
case ARRAY: /* array includes subscript as an int range */
if (ty->size && ty->type->size)
print("=ar1;0;%d;", ty->size/ty->type->size - 1), col += 7+3+1;
else
print("=ar1;0;-1;"), col += 10;
col = emittype(ty->type, lev + 1, col);
break;
case STRUCT: case UNION: {
Field p;
if (!ty->u.sym->defined) {
print("=x%c%s:", ty->op == STRUCT ? 's' : 'u', ty->u.sym->name);
col += 2+1+strlen(ty->u.sym->name)+1;
break;
}
if (lev > 0 && (*ty->u.sym->name < '0' || *ty->u.sym->name > '9')) {
ty->x.printed = 0;
break;
}
print("=%c%d", ty->op == STRUCT ? 's' : 'u', ty->size), col += 1+1+3;
for (p = fieldlist(ty); p; p = p->link) {
if (p->name)
print("%s:", p->name), col += strlen(p->name)+1;
else
print(":"), col += 1;
col = emittype(p->type, lev + 1, col);
if (p->lsb)
print(",%d,%d;", 8*p->offset +
(IR->little_endian ? fieldright(p) : fieldleft(p)),
fieldsize(p));
else
print(",%d,%d;", 8*p->offset, 8*p->type->size);
col += 1+3+1+3+1; /* accounts for ,%d,%d; */
if (col >= 80 && p->link) {
print("\\\\\",%d,0,0,0\n.stabs \"", N_LSYM);
col = 8;
}
}
print(";"), col += 1;
break;
}
case ENUM: {
Symbol *p;
if (lev > 0 && (*ty->u.sym->name < '0' || *ty->u.sym->name > '9')) {
ty->x.printed = 0;
break;
}
print("=e"), col += 2;
for (p = ty->u.sym->u.idlist; *p; p++) {
print("%s:%d,", (*p)->name, (*p)->u.value), col += strlen((*p)->name)+3;
if (col >= 80 && p[1]) {
print("\\\\\",%d,0,0,0\n.stabs \"", N_LSYM);
col = 8;
}
}
print(";"), col += 1;
break;
}
default:
assert(0);
}
return col;
}
/* dbxout - output .stabs entry for type ty */
static void dbxout(ty) Type ty; {
ty = unqual(ty);
if (!ty->x.printed) {
int col = 0;
print(".stabs \""), col += 8;
if (ty->u.sym && !(isfunc(ty) || isarray(ty) || isptr(ty)))
print("%s", ty->u.sym->name), col += strlen(ty->u.sym->name);
print(":%c", isstruct(ty) || isenum(ty) ? 'T' : 't'), col += 2;
emittype(ty, 0, col);
print("\",%d,0,0,0\n", N_LSYM);
}
}
/* asgncode - assign type code to ty */
static void asgncode(ty, lev) Type ty; {
if (ty->x.marked || ty->x.typeno)
return;
ty->x.marked = 1;
switch (ty->op) {
case VOLATILE: case CONST: case VOLATILE+CONST:
asgncode(ty->type, lev);
ty->x.typeno = ty->type->x.typeno;
break;
case POINTER: case FUNCTION: case ARRAY:
asgncode(ty->type, lev + 1);
/* fall thru */
case VOID: case CHAR: case SHORT: case INT: case UNSIGNED:
case FLOAT: case DOUBLE:
break;
case STRUCT: case UNION: {
Field p;
for (p = fieldlist(ty); p; p = p->link)
asgncode(p->type, lev + 1);
/* fall thru */
case ENUM:
if (ty->x.typeno == 0)
ty->x.typeno = ++ntypes;
if (lev > 0 && (*ty->u.sym->name < '0' || *ty->u.sym->name > '9'))
dbxout(ty);
break;
}
default:
assert(0);
}
}
/* dbxtype - emit a stabs entry for type ty, return type code */
static int dbxtype(ty) Type ty; {
asgncode(ty, 0);
dbxout(ty);
return ty->x.typeno;
}
/* stabsym - output a stab entry for symbol p */
static void stabsym(p) Symbol p; {
int code, tc, sz = p->type->size;
if (p->generated || p->computed)
return;
if (isfunc(p->type)) {
print(".stabs \"%s:%c%d\",%d,0,0,%s\n", p->name,
p->sclass == STATIC ? 'f' : 'F', dbxtype(freturn(p->type)),
N_FUN, p->x.name);
return;
}
if (!IR->wants_argb && p->scope == PARAM && p->structarg) {
assert(isptr(p->type) && isstruct(p->type->type));
tc = dbxtype(p->type->type);
sz = p->type->type->size;
} else
tc = dbxtype(p->type);
if (p->sclass == AUTO && p->scope == GLOBAL || p->sclass == EXTERN) {
print(".stabs \"%s:G", p->name);
code = N_GSYM;
} else if (p->sclass == STATIC) {
print(".stabs \"%s:%c%d\",%d,0,0,%s\n", p->name, p->scope == GLOBAL ? 'S' : 'V',
tc, p->u.seg == BSS ? N_LCSYM : N_STSYM, p->x.name);
return;
} else if (p->sclass == REGISTER) {
if (p->scope > PARAM) {
int r = p->x.regnode->number;
if (p->x.regnode->set == FREG)
r += 32; /* floating point */
print(".stabs \"%s:r%d\",%d,0,", p->name, tc, N_RSYM);
print("%d,%d\n", sz, r);
}
return;
} else if (p->scope == PARAM) {
print(".stabs \"%s:p", p->name);
code = N_PSYM;
} else if (p->scope >= LOCAL) {
print(".stabs \"%s:", p->name);
code = N_LSYM;
} else
assert(0);
print("%d\",%d,0,0,%s\n", tc, code,
p->scope >= PARAM && p->sclass != EXTERN ? p->x.name : "0");
}
/* stabtype - output a stab entry for type *p */
static void stabtype(p) Symbol p; {
if (p->type) {
if (p->sclass == 0)
dbxtype(p->type);
else if (p->sclass == TYPEDEF)
print(".stabs \"%s:t%d\",%d,0,0,0\n", p->name, dbxtype(p->type), N_LSYM);
}
}
/* stabblock - output a stab entry for '{' or '}' at level lev */
static void stabblock(brace, lev, p) Symbol *p; {
if (brace == '{')
while (*p)
stabsym(*p++);
print(".stabd 0x%x,0,%d\n", brace == '{' ? N_LBRAC : N_RBRAC, lev);
}
/* stabinit - initialize stab output */
static void stabinit(file, argc, argv) char *file; int argc; char *argv[]; {
typedef void (*Closure) (Symbol, void *);
if (file && *file) {
(*IR->segment)(CODE);
print("Ltext:.stabs \"%s\",0x%x,0,0,Ltext\n", file, N_SO);
currentfile = file;
}
dbxtype(inttype);
dbxtype(chartype);
dbxtype(doubletype);
dbxtype(floattype);
dbxtype(longdouble);
dbxtype(longtype);
dbxtype(shorttype);
dbxtype(signedchar);
dbxtype(unsignedchar);
dbxtype(unsignedlong);
dbxtype(unsignedshort);
dbxtype(unsignedtype);
dbxtype(voidtype);
foreach(types, GLOBAL, (Closure)stabtype, NULL);
}
/* stabline - emit stab entry for source coordinate *cp */
static void stabline(cp) Coordinate *cp; {
if (cp->file && cp->file != currentfile) {
int lab = genlabel(1);
print("L%d: .stabs \"%s\",0x%x,0,0,L%d\n", lab,
cp->file, N_SOL, lab);
currentfile = cp->file;
}
print(".stabd 0x%x,0,%d\n", N_SLINE, cp->y);
}
Interface x86bsdIR = {
1, 1, 0, /* char */
2, 2, 0, /* short */
4, 4, 0, /* int */
4, 4, 0, /* long */
4, 4, 0, /* long long */
4, 4, 1, /* float */
8, 4, 1, /* double */
8, 4, 1, /* long double */
4, 4, 0, /* T * */
0, 4, 0, /* struct; so that ARGB keeps stack aligned */
1, /* little_endian */
0, /* mulops_calls */
0, /* wants_callb */
1, /* wants_argb */
0, /* left_to_right */
0, /* wants_dag */
0, /* unsigned char */
address,
blockbeg,
blockend,
defaddress,
defconst,
defstring,
defsymbol,
emit,
export,
function,
gen,
global,
import,
local,
progbeg,
progend,
segment,
space,
stabblock, 0, 0, stabinit, stabline, stabsym, stabtype,
{1, rmap,
blkfetch, blkstore, blkloop,
_label,
_rule,
_nts,
_kids,
_string,
_templates,
_isinstruction,
_ntname,
emit2,
doarg,
target,
clobber,
}
};
Interface x86bsdelfIR = {
1, 1, 0, /* char */
2, 2, 0, /* short */
4, 4, 0, /* int */
4, 4, 0, /* long */
4, 4, 0, /* long long */
4, 4, 1, /* float */
8, 4, 1, /* double */
8, 4, 1, /* long double */
4, 4, 0, /* T * */
0, 4, 0, /* struct; so that ARGB keeps stack aligned */
1, /* little_endian */
0, /* mulops_calls */
0, /* wants_callb */
1, /* wants_argb */
0, /* left_to_right */
0, /* wants_dag */
0, /* unsigned char */
address,
blockbeg,
blockend,
defaddress,
defconst,
defstring,
defsymbolelf,
emit,
export,
function,
gen,
global,
import,
local,
progbeg,
progend,
segment,
space,
stabblock, 0, 0, stabinit, stabline, stabsym, stabtype,
{1, rmap,
blkfetch, blkstore, blkloop,
_label,
_rule,
_nts,
_kids,
_string,
_templates,
_isinstruction,
_ntname,
emit2,
doarg,
target,
clobber,
}
};