diff options
Diffstat (limited to 'src/pkg/runtime/parfor.c')
| -rw-r--r-- | src/pkg/runtime/parfor.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/pkg/runtime/parfor.c b/src/pkg/runtime/parfor.c index aa5537d02..a4468c2af 100644 --- a/src/pkg/runtime/parfor.c +++ b/src/pkg/runtime/parfor.c @@ -46,6 +46,7 @@ void runtime·parforsetup(ParFor *desc, uint32 nthr, uint32 n, void *ctx, bool wait, void (*body)(ParFor*, uint32)) { uint32 i, begin, end; + uint64 *pos; if(desc == nil || nthr == 0 || nthr > desc->nthrmax || body == nil) { runtime·printf("desc=%p nthr=%d count=%d body=%p\n", desc, nthr, n, body); @@ -67,7 +68,10 @@ runtime·parforsetup(ParFor *desc, uint32 nthr, uint32 n, void *ctx, bool wait, for(i=0; i<nthr; i++) { begin = (uint64)n*i / nthr; end = (uint64)n*(i+1) / nthr; - desc->thr[i].pos = (uint64)begin | (((uint64)end)<<32); + pos = &desc->thr[i].pos; + if(((uintptr)pos & 7) != 0) + runtime·throw("parforsetup: pos is not aligned"); + *pos = (uint64)begin | (((uint64)end)<<32); } } |