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-rw-r--r--llvm/tools/llvm-cov/SourceCoverageViewHTML.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/tools/llvm-cov/SourceCoverageViewHTML.cpp b/llvm/tools/llvm-cov/SourceCoverageViewHTML.cpp
index 50e3dcc..49f2035 100644
--- a/llvm/tools/llvm-cov/SourceCoverageViewHTML.cpp
+++ b/llvm/tools/llvm-cov/SourceCoverageViewHTML.cpp
@@ -668,7 +668,9 @@ void SourceCoverageViewHTML::renderBranchView(raw_ostream &OS, BranchView &BRV,
// Calculate TruePercent and False Percent.
double TruePercent = 0.0;
double FalsePercent = 0.0;
- unsigned Total = R.ExecutionCount + R.FalseExecutionCount;
+ // FIXME: It may overflow when the data is too large, but I have not
+ // encountered it in actual use, and not sure whether to use __uint128_t.
+ uint64_t Total = R.ExecutionCount + R.FalseExecutionCount;
if (!getOptions().ShowBranchCounts && Total != 0) {
TruePercent = ((double)(R.ExecutionCount) / (double)Total) * 100.0;