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

heavy modification of call handling

Browse source 
The IR generated by calls was very bulky because two
instructions were used for marking the live range of
a clobber.

This patch attempts to store the information of what
registers are use/def/clobber in the call instruction
itself, this leads to more compact code (even more
when we'll have SSE registers).  However, I find that
the amount of extra code needed is not really
easonable.  Fortunately it is not too invasive, thus
if the complexity creeps in, it should be easy to
revert.
This commit is contained in:
Quentin Carbonneaux 2015-09-14 23:36:26 -04:00
parent bad74e6dce
commit f7bfa2e435
7 changed files with 125 additions and 39 deletions
Download patch file Download diff file Expand all files Collapse all files

7
lisc/parse.c
View file

@ -779,8 +779,11 @@ printref(Ref r, Fn *fn, FILE *f)
case RSlot:
fprintf(f, "S%d", r.val);
break;
case RTyp:
fprintf(f, ":%s", typ[r.val].name);
case RAlt:
if (r.val & RCallm)
fprintf(f, "%x", r.val & (RCallm-1));
else
fprintf(f, ":%s", typ[r.val].name);
break;
}
}