sam/libqbe
1
0
Fork 0
Code Issues Pull requests Projects Releases 1 Packages Wiki Activity Actions

split cmp in two sizes

Browse source
This commit is contained in:
Quentin Carbonneaux 2015-08-06 16:35:17 -04:00
parent 27f32f26b3
commit 7dc3e5dcf6
5 changed files with 20 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

11
lisc/isel.c
View file

@ -39,6 +39,12 @@ newtmp(int type, Fn *fn)
return t;
}
static int
islong(Ref r, Fn *fn)
{
return rtype(r) == RTmp && fn->tmp[r.val].type == TLong;
}
static void
sel(Ins i, Fn *fn)
{
@ -103,7 +109,10 @@ sel(Ins i, Fn *fn)
}
}
emit(OXSet+c, i.to, R, R);
emit(OXCmp, R, i.arg[1], r0);
if (islong(r0, fn) || islong(i.arg[1], fn))
emit(OXCmpl, R, i.arg[1], r0);
else
emit(OXCmpw, R, i.arg[1], r0);
if (t != -1)
emit(OCopy, r0, i.arg[0], R);
break;