qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-11-18 13:54:59 -07:00
Code Releases Activity

cmd/gc: remove cgen_asop, no longer used

Browse Source 
gc/order.c rewrites OASOP nodes into ordinary assignments.
The back ends never see them anymore.

Change-Id: I268ac8bdc92dccd7123110a21f99ada3ceeb2baa
Reviewed-on: https://go-review.googlesource.com/3882
Reviewed-by: Austin Clements <austin@google.com>
This commit is contained in:
Russ Cox 2015-02-03 15:27:54 -05:00
parent eb1774fa19
commit b8a3e88ea7
14 changed files with 0 additions and 424 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/cmd/5g/galign.c
View File

@ -53,7 +53,6 @@ main(int argc, char **argv)
arch.betypeinit = betypeinit;
arch.bgen = bgen;
arch.cgen = cgen;
arch.cgen_asop = cgen_asop;
arch.cgen_call = cgen_call;
arch.cgen_callinter = cgen_callinter;
arch.cgen_ret = cgen_ret;

1
src/cmd/5g/gg.h
View File

@ -115,7 +115,6 @@ int anyregalloc(void);
void betypeinit(void);
void bgen(Node*, int, int, Prog*);
void cgen(Node*, Node*);
void cgen_asop(Node*);
void cgen_call(Node*, int);
void cgen_callinter(Node*, Node*, int);
void cgen_ret(Node*);

129
src/cmd/5g/ggen.c
View File

@ -437,135 +437,6 @@ cgen_ret(Node *n)
}
}
/*
* generate += *= etc.
*/
void
cgen_asop(Node *n)
{
Node n1, n2, n3, n4;
Node *nl, *nr;
Prog *p1;
Addr addr;
int a, w;
nl = n->left;
nr = n->right;
if(nr->ullman >= UINF && nl->ullman >= UINF) {
tempname(&n1, nr->type);
cgen(nr, &n1);
n2 = *n;
n2.right = &n1;
cgen_asop(&n2);
goto ret;
}
if(!isint[nl->type->etype])
goto hard;
if(!isint[nr->type->etype])
goto hard;
if(is64(nl->type) || is64(nr->type))
goto hard64;
switch(n->etype) {
case OADD:
case OSUB:
case OXOR:
case OAND:
case OOR:
a = optoas(n->etype, nl->type);
if(nl->addable) {
if(smallintconst(nr))
n3 = *nr;
else {
regalloc(&n3, nr->type, N);
cgen(nr, &n3);
}
regalloc(&n2, nl->type, N);
cgen(nl, &n2);
gins(a, &n3, &n2);
cgen(&n2, nl);
regfree(&n2);
if(n3.op != OLITERAL)
regfree(&n3);
goto ret;
}
if(nr->ullman < UINF)
if(sudoaddable(a, nl, &addr, &w)) {
w = optoas(OAS, nl->type);
regalloc(&n2, nl->type, N);
p1 = gins(w, N, &n2);
p1->from = addr;
regalloc(&n3, nr->type, N);
cgen(nr, &n3);
gins(a, &n3, &n2);
p1 = gins(w, &n2, N);
p1->to = addr;
regfree(&n2);
regfree(&n3);
sudoclean();
goto ret;
}
}
hard:
n2.op = 0;
n1.op = 0;
if(nr->op == OLITERAL) {
// don't allocate a register for literals.
} else if(nr->ullman >= nl->ullman || nl->addable) {
regalloc(&n2, nr->type, N);
cgen(nr, &n2);
nr = &n2;
} else {
tempname(&n2, nr->type);
cgen(nr, &n2);
nr = &n2;
}
if(!nl->addable) {
igen(nl, &n1, N);
nl = &n1;
}
n3 = *n;
n3.left = nl;
n3.right = nr;
n3.op = n->etype;
regalloc(&n4, nl->type, N);
cgen(&n3, &n4);
gmove(&n4, nl);
if(n1.op)
regfree(&n1);
if(n2.op == OREGISTER)
regfree(&n2);
regfree(&n4);
goto ret;
hard64:
if(nr->ullman > nl->ullman) {
tempname(&n2, nr->type);
cgen(nr, &n2);
igen(nl, &n1, N);
} else {
igen(nl, &n1, N);
tempname(&n2, nr->type);
cgen(nr, &n2);
}
n3 = *n;
n3.left = &n1;
n3.right = &n2;
n3.op = n->etype;
cgen(&n3, &n1);
ret:
;
}
/*
* generate high multiply
* res = (nl * nr) >> wordsize

1
src/cmd/6g/galign.c
View File

@ -76,7 +76,6 @@ main(int argc, char **argv)
arch.betypeinit = betypeinit;
arch.bgen = bgen;
arch.cgen = cgen;
arch.cgen_asop = cgen_asop;
arch.cgen_call = cgen_call;
arch.cgen_callinter = cgen_callinter;
arch.cgen_ret = cgen_ret;

1
src/cmd/6g/gg.h
View File

@ -114,7 +114,6 @@ int anyregalloc(void);
void betypeinit(void);
void bgen(Node*, int, int, Prog*);
void cgen(Node*, Node*);
void cgen_asop(Node*);
void cgen_call(Node*, int);
void cgen_callinter(Node*, Node*, int);
void cgen_ret(Node*);

139
src/cmd/6g/ggen.c
View File

@ -431,145 +431,6 @@ cgen_ret(Node *n)
}
}
/*
* generate += *= etc.
*/
void
cgen_asop(Node *n)
{
Node n1, n2, n3, n4;
Node *nl, *nr;
Prog *p1;
Addr addr;
int a;
nl = n->left;
nr = n->right;
if(nr->ullman >= UINF && nl->ullman >= UINF) {
tempname(&n1, nr->type);
cgen(nr, &n1);
n2 = *n;
n2.right = &n1;
cgen_asop(&n2);
goto ret;
}
if(!isint[nl->type->etype])
goto hard;
if(!isint[nr->type->etype])
goto hard;
switch(n->etype) {
case OADD:
if(smallintconst(nr))
if(mpgetfix(nr->val.u.xval) == 1) {
a = optoas(OINC, nl->type);
if(nl->addable) {
gins(a, N, nl);
goto ret;
}
if(sudoaddable(a, nl, &addr)) {
p1 = gins(a, N, N);
p1->to = addr;
sudoclean();
goto ret;
}
}
break;
case OSUB:
if(smallintconst(nr))
if(mpgetfix(nr->val.u.xval) == 1) {
a = optoas(ODEC, nl->type);
if(nl->addable) {
gins(a, N, nl);
goto ret;
}
if(sudoaddable(a, nl, &addr)) {
p1 = gins(a, N, N);
p1->to = addr;
sudoclean();
goto ret;
}
}
break;
}
switch(n->etype) {
case OADD:
case OSUB:
case OXOR:
case OAND:
case OOR:
a = optoas(n->etype, nl->type);
if(nl->addable) {
if(smallintconst(nr)) {
gins(a, nr, nl);
goto ret;
}
regalloc(&n2, nr->type, N);
cgen(nr, &n2);
gins(a, &n2, nl);
regfree(&n2);
goto ret;
}
if(nr->ullman < UINF)
if(sudoaddable(a, nl, &addr)) {
if(smallintconst(nr)) {
p1 = gins(a, nr, N);
p1->to = addr;
sudoclean();
goto ret;
}
regalloc(&n2, nr->type, N);
cgen(nr, &n2);
p1 = gins(a, &n2, N);
p1->to = addr;
regfree(&n2);
sudoclean();
goto ret;
}
}
hard:
n2.op = 0;
n1.op = 0;
if(nr->op == OLITERAL) {
// don't allocate a register for literals.
} else if(nr->ullman >= nl->ullman || nl->addable) {
regalloc(&n2, nr->type, N);
cgen(nr, &n2);
nr = &n2;
} else {
tempname(&n2, nr->type);
cgen(nr, &n2);
nr = &n2;
}
if(!nl->addable) {
igen(nl, &n1, N);
nl = &n1;
}
n3 = *n;
n3.left = nl;
n3.right = nr;
n3.op = n->etype;
regalloc(&n4, nl->type, N);
cgen(&n3, &n4);
gmove(&n4, nl);
if(n1.op)
regfree(&n1);
if(n2.op == OREGISTER)
regfree(&n2);
regfree(&n4);
ret:
;
}
/*
* generate division.
* generates one of:

1
src/cmd/8g/galign.c
View File

@ -53,7 +53,6 @@ main(int argc, char **argv)
arch.betypeinit = betypeinit;
arch.bgen = bgen;
arch.cgen = cgen;
arch.cgen_asop = cgen_asop;
arch.cgen_call = cgen_call;
arch.cgen_callinter = cgen_callinter;
arch.cgen_ret = cgen_ret;

1
src/cmd/8g/gg.h
View File

@ -127,7 +127,6 @@ int anyregalloc(void);
void betypeinit(void);
void bgen(Node*, int, int, Prog*);
void cgen(Node*, Node*);
void cgen_asop(Node*);
void cgen_call(Node*, int);
void cgen_callinter(Node*, Node*, int);
void cgen_ret(Node*);

136
src/cmd/8g/ggen.c
View File

@ -478,142 +478,6 @@ cgen_ret(Node *n)
}
}
/*
* generate += *= etc.
*/
void
cgen_asop(Node *n)
{
Node n1, n2, n3, n4;
Node *nl, *nr;
Prog *p1;
Addr addr;
int a;
nl = n->left;
nr = n->right;
if(nr->ullman >= UINF && nl->ullman >= UINF) {
tempname(&n1, nr->type);
cgen(nr, &n1);
n2 = *n;
n2.right = &n1;
cgen_asop(&n2);
goto ret;
}
if(!isint[nl->type->etype])
goto hard;
if(!isint[nr->type->etype])
goto hard;
if(is64(nl->type) || is64(nr->type))
goto hard;
switch(n->etype) {
case OADD:
if(smallintconst(nr))
if(mpgetfix(nr->val.u.xval) == 1) {
a = optoas(OINC, nl->type);
if(nl->addable) {
gins(a, N, nl);
goto ret;
}
if(sudoaddable(a, nl, &addr)) {
p1 = gins(a, N, N);
p1->to = addr;
sudoclean();
goto ret;
}
}
break;
case OSUB:
if(smallintconst(nr))
if(mpgetfix(nr->val.u.xval) == 1) {
a = optoas(ODEC, nl->type);
if(nl->addable) {
gins(a, N, nl);
goto ret;
}
if(sudoaddable(a, nl, &addr)) {
p1 = gins(a, N, N);
p1->to = addr;
sudoclean();
goto ret;
}
}
break;
}
switch(n->etype) {
case OADD:
case OSUB:
case OXOR:
case OAND:
case OOR:
a = optoas(n->etype, nl->type);
if(nl->addable) {
if(smallintconst(nr)) {
gins(a, nr, nl);
goto ret;
}
regalloc(&n2, nr->type, N);
cgen(nr, &n2);
gins(a, &n2, nl);
regfree(&n2);
goto ret;
}
if(nr->ullman < UINF)
if(sudoaddable(a, nl, &addr)) {
if(smallintconst(nr)) {
p1 = gins(a, nr, N);
p1->to = addr;
sudoclean();
goto ret;
}
regalloc(&n2, nr->type, N);
cgen(nr, &n2);
p1 = gins(a, &n2, N);
p1->to = addr;
regfree(&n2);
sudoclean();
goto ret;
}
}
hard:
n2.op = 0;
n1.op = 0;
if(nr->ullman >= nl->ullman || nl->addable) {
mgen(nr, &n2, N);
nr = &n2;
} else {
tempname(&n2, nr->type);
cgen(nr, &n2);
nr = &n2;
}
if(!nl->addable) {
igen(nl, &n1, N);
nl = &n1;
}
n3 = *n;
n3.left = nl;
n3.right = nr;
n3.op = n->etype;
mgen(&n3, &n4, N);
gmove(&n4, nl);
if(n1.op)
regfree(&n1);
mfree(&n2);
mfree(&n4);
ret:
;
}
/*
* generate division.
* caller must set:

1
src/cmd/9g/galign.c
View File

@ -60,7 +60,6 @@ main(int argc, char **argv)
arch.betypeinit = betypeinit;
arch.bgen = bgen;
arch.cgen = cgen;
arch.cgen_asop = cgen_asop;
arch.cgen_call = cgen_call;
arch.cgen_callinter = cgen_callinter;
arch.cgen_ret = cgen_ret;

1
src/cmd/9g/gg.h
View File

@ -109,7 +109,6 @@ int anyregalloc(void);
void betypeinit(void);
void bgen(Node*, int, int, Prog*);
void cgen(Node*, Node*);
void cgen_asop(Node*);
void cgen_call(Node*, int);
void cgen_callinter(Node*, Node*, int);
void cgen_ret(Node*);

7
src/cmd/9g/ggen.c
View File

@ -442,13 +442,6 @@ cgen_ret(Node *n)
}
}
void
cgen_asop(Node *n)
{
USED(n);
fatal("cgen_asop"); // no longer used
}
/*
* generate division.
* generates one of:

4
src/cmd/gc/gen.c
View File

@ -453,10 +453,6 @@ gen(Node *n)
lab->breakpc = P;
break;
case OASOP:
arch.cgen_asop(n);
break;
case ODCL:
cgen_dcl(n->left);
break;

1
src/cmd/gc/go.h
View File

@ -1666,7 +1666,6 @@ struct Arch
void (*betypeinit)(void);
void (*bgen)(Node*, int, int, Prog*);
void (*cgen)(Node*, Node*);
void (*cgen_asop)(Node*);
void (*cgen_call)(Node*, int);
void (*cgen_callinter)(Node*, Node*, int);
void (*cgen_ret)(Node*);