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authorAli Saidi <Ali.Saidi@ARM.com>2010-08-23 11:18:39 -0500
committerAli Saidi <Ali.Saidi@ARM.com>2010-08-23 11:18:39 -0500
commit77937738096e227ebfe5bd2fb999c35032c2c8c4 (patch)
tree2fb486b2b1f2ae214d30202f8fc45601d8ae4275 /src
parentfa01fbddeb637efe5fc90c9777579008f0af39ed (diff)
downloadgem5-77937738096e227ebfe5bd2fb999c35032c2c8c4.tar.xz
stats: Fix off-by-one error in distributions.
bkt size isn't evenly divisible by max-min and it would round down, it's possible to sample a distribution and have no place to put the sample. When this case occured the simulator would assert.
Diffstat (limited to 'src')
-rw-r--r--src/base/statistics.hh4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/base/statistics.hh b/src/base/statistics.hh
index 8c229d419..7eb769e43 100644
--- a/src/base/statistics.hh
+++ b/src/base/statistics.hh
@@ -2287,7 +2287,7 @@ class Distribution : public DistBase<Distribution, DistStor>
params->min = min;
params->max = max;
params->bucket_size = bkt;
- params->buckets = (size_type)rint((max - min + 1.0) / bkt );
+ params->buckets = (size_type)ceil((max - min + 1.0) / bkt);
this->setParams(params);
this->doInit();
return this->self();
@@ -2352,7 +2352,7 @@ class VectorDistribution : public VectorDistBase<VectorDistribution, DistStor>
params->min = min;
params->max = max;
params->bucket_size = bkt;
- params->buckets = (size_type)rint((max - min + 1.0) / bkt);
+ params->buckets = (size_type)ceil((max - min + 1.0) / bkt);
this->setParams(params);
this->doInit(size);
return this->self();