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reorder1 - function first instead of last

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SVN=122160
This commit is contained in:
Ken Thompson 2008-06-11 12:25:44 -07:00
parent a544938c26
commit 2bba3a610d
1 changed files with 8 additions and 10 deletions
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18
src/cmd/gc/walk.c
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@ -1224,6 +1224,7 @@ convas(Node *n)
if(n->op != OAS)
fatal("convas: not as %O", n->op);
ullmancalc(n);
l = n->left;
r = n->right;
if(l == N || r == N)
@ -1321,7 +1322,7 @@ loop1:
if(c == 0 || t == 1)
return n;
if(c > 1) {
yyerror("reorder1: too many funcation calls evaluating parameters");
yyerror("reorder1: too many function calls evaluating parameters");
return n;
}
goto pass2;
@ -1337,21 +1338,18 @@ loop1:
pass2:
l = listfirst(&save, &n);
f = N; // isolated function call
r = N; // rest of them
r = N; // rest
f = N; // fncall
loop2:
if(l == N) {
if(r == N || f == N)
fatal("reorder1 not nil 1");
r = nod(OLIST, f, r);
return rev(r);
r = rev(r);
return r;
}
if(l->ullman >= UINF) {
if(f != N)
fatal("reorder1 not nil 2");
if(l->ullman >= UINF)
f = l;
} else
else
if(r == N)
r = l;
else