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go
golang
Commits
49f74948
Commit
49f74948
authored
May 02, 2009
by
Ken Thompson
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code optmization
drip init function if it doesnt do anything R=r OCL=28180 CL=28180
parent
1ed7f181
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+37
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dcl.c
src/cmd/gc/dcl.c
+37
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src/cmd/gc/dcl.c
View file @
49f74948
...
...
@@ -1259,6 +1259,40 @@ mixed:
// return (8)
// }
int
anyinit
(
Node
*
n
)
{
uint32
h
;
Sym
*
s
;
// are there any init statements
if
(
n
!=
N
)
return
1
;
// is this main
if
(
strcmp
(
package
,
"main"
)
==
0
)
return
1
;
// is there an explicit init function
snprint
(
namebuf
,
sizeof
(
namebuf
),
"init·%s"
,
filename
);
s
=
lookup
(
namebuf
);
if
(
s
->
oname
!=
N
)
return
1
;
// are there any imported init functions
for
(
h
=
0
;
h
<
NHASH
;
h
++
)
for
(
s
=
hash
[
h
];
s
!=
S
;
s
=
s
->
link
)
{
if
(
s
->
name
[
0
]
!=
'I'
||
strncmp
(
s
->
name
,
"Init·"
,
6
)
!=
0
)
continue
;
if
(
s
->
oname
==
N
)
continue
;
return
1
;
}
// then none
return
0
;
}
void
fninit
(
Node
*
n
)
{
...
...
@@ -1272,6 +1306,9 @@ fninit(Node *n)
return
;
}
if
(
!
anyinit
(
n
))
return
;
r
=
N
;
// (1)
...
...
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