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-rw-r--r--src/ir/module-utils.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/ir/module-utils.h b/src/ir/module-utils.h
index 4792c5d23..371239e19 100644
--- a/src/ir/module-utils.h
+++ b/src/ir/module-utils.h
@@ -550,7 +550,7 @@ inline void collectHeapTypes(Module& wasm,
// Sort by frequency and then simplicity.
std::vector<std::pair<HeapType, size_t>> sorted(counts.begin(), counts.end());
- std::sort(sorted.begin(), sorted.end(), [&](auto a, auto b) {
+ std::stable_sort(sorted.begin(), sorted.end(), [&](auto a, auto b) {
if (a.second != b.second) {
return a.second > b.second;
}