projects
/
platform
/
upstream
/
isl.git
/ commitdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
| commitdiff |
tree
raw
|
patch
| inline |
side by side
(parent:
a27a0e2
)
isl_aff_scale: special case scaling by a factor of the denominator
author
Sven Verdoolaege
<skimo@kotnet.org>
Mon, 18 Feb 2013 10:37:43 +0000
(11:37 +0100)
committer
Sven Verdoolaege
<skimo@kotnet.org>
Tue, 19 Feb 2013 18:39:55 +0000
(19:39 +0100)
Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
isl_aff.c
patch
|
blob
|
history
diff --git
a/isl_aff.c
b/isl_aff.c
index
ae57b81
..
3acb3f5
100644
(file)
--- a/
isl_aff.c
+++ b/
isl_aff.c
@@
-1214,6
+1214,11
@@
__isl_give isl_aff *isl_aff_scale(__isl_take isl_aff *aff, isl_int f)
if (!aff->v)
return isl_aff_free(aff);
+ if (isl_int_is_pos(f) && isl_int_is_divisible_by(aff->v->el[0], f)) {
+ isl_int_divexact(aff->v->el[0], aff->v->el[0], f);
+ return aff;
+ }
+
isl_int_init(gcd);
isl_int_gcd(gcd, aff->v->el[0], f);
isl_int_divexact(aff->v->el[0], aff->v->el[0], gcd);