diff options
| author | Michael Stapelberg <stapelberg@debian.org> | 2014-06-19 09:22:53 +0200 |
|---|---|---|
| committer | Michael Stapelberg <stapelberg@debian.org> | 2014-06-19 09:22:53 +0200 |
| commit | 8a39ee361feb9bf46d728ff1ba4f07ca1d9610b1 (patch) | |
| tree | 4449f2036cccf162e8417cc5841a35815b3e7ac5 /src/cmd/gc/mparith2.c | |
| parent | c8bf49ef8a92e2337b69c14b9b88396efe498600 (diff) | |
| download | golang-upstream/1.3.tar.gz | |
Imported Upstream version 1.3upstream/1.3
Diffstat (limited to 'src/cmd/gc/mparith2.c')
| -rw-r--r-- | src/cmd/gc/mparith2.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/cmd/gc/mparith2.c b/src/cmd/gc/mparith2.c index 9b2f664f7..5cf98c62c 100644 --- a/src/cmd/gc/mparith2.c +++ b/src/cmd/gc/mparith2.c @@ -300,13 +300,21 @@ mpmulfixfix(Mpint *a, Mpint *b) for(i=0; i<na; i++) { x = *a1++; for(j=0; j<Mpscale; j++) { - if(x & 1) + if(x & 1) { + if(s.ovf) { + q.ovf = 1; + goto out; + } mpaddfixfix(&q, &s, 1); + if(q.ovf) + goto out; + } mplsh(&s, 1); x >>= 1; } } +out: q.neg = a->neg ^ b->neg; mpmovefixfix(a, &q); if(a->ovf) |