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merge first pass into main loop in span calculation.

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having one copy will cut nacl changes in half.

R=ken
OCL=34815
CL=34815
This commit is contained in:
Russ Cox 2009-09-18 17:08:18 -07:00
parent 46e392e01c
commit c64986f706
1 changed files with 28 additions and 47 deletions
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75
src/cmd/8l/span.c
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@ -65,56 +65,37 @@ span(void)
}
}
n = 0;
start:
if(debug['v'])
Bprint(&bso, "%5.2f span\n", cputime());
Bflush(&bso);
c = INITTEXT;
for(p = firstp; p != P; p = p->link) {
if(p->as == ATEXT)
curtext = p;
if(p->to.type == D_BRANCH)
if(p->back)
p->pc = c;
asmins(p);
p->pc = c;
m = andptr-and;
p->mark = m;
c += m;
}
loop:
n++;
if(debug['v'])
Bprint(&bso, "%5.2f span %d\n", cputime(), n);
Bflush(&bso);
if(n > 50) {
print("span must be looping\n");
errorexit();
}
again = 0;
c = INITTEXT;
for(p = firstp; p != P; p = p->link) {
if(p->as == ATEXT)
curtext = p;
if(p->to.type == D_BRANCH) {
if(p->back)
p->pc = c;
asmins(p);
m = andptr-and;
if(m != p->mark) {
p->mark = m;
again++;
}
do{
again = 0;
if(debug['v'])
Bprint(&bso, "%5.2f span %d\n", cputime(), n);
Bflush(&bso);
if(n > 50) {
print("span must be looping\n");
errorexit();
}
c = INITTEXT;
for(p = firstp; p != P; p = p->link) {
if(p->as == ATEXT)
curtext = p;
if(p->to.type == D_BRANCH)
if(p->back)
p->pc = c;
if(n == 0 || p->to.type == D_BRANCH) {
asmins(p);
m = andptr-and;
p->mark = m;
}
if(c != p->pc)
again = 1;
p->pc = c;
c += p->mark;
}
p->pc = c;
c += p->mark;
}
if(again) {
textsize = c;
goto loop;
}
n++;
}while(again);
if(INITRND) {
INITDAT = rnd(c, INITRND);
if(INITDAT != idat) {