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timing: Fix out-of-bounds histogram bins in all cases

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Signed-off-by: gatecat <gatecat@ds0.me>
This commit is contained in:
gatecat 2021-07-10 23:44:21 +01:00
parent 8531658019
commit 76070a7647
1 changed files with 6 additions and 1 deletions
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7
common/timing.cc
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@ -1363,7 +1363,12 @@ void timing_analysis(Context *ctx, bool print_histogram, bool print_fmax, bool p
std::vector<unsigned> bins(num_bins);
unsigned max_freq = 0;
for (const auto &i : slack_histogram) {
auto &bin = bins[(i.first - min_slack) / bin_size];
int bin_idx = int((i.first - min_slack) / bin_size);
if (bin_idx < 0)
bin_idx = 0;
else if (bin_idx >= int(num_bins))
bin_idx = num_bins - 1;
auto &bin = bins.at(bin_idx);
bin += i.second;
max_freq = std::max(max_freq, bin);
}