================
@@ -33,6 +34,54 @@ using namespace clang::CIRGen;
void EHScopeStack::Cleanup::anchor() {}
+/// Push an entry of the given size onto this protected-scope stack.
+char *EHScopeStack::allocate(size_t size) {
+ size = llvm::alignTo(size, ScopeStackAlignment);
+ if (!startOfBuffer) {
+ unsigned capacity = 1024;
+ while (capacity < size)
+ capacity *= 2;
+ startOfBuffer = new char[capacity];
+ startOfData = endOfBuffer = startOfBuffer + capacity;
+ } else if (static_cast<size_t>(startOfData - startOfBuffer) < size) {
+ unsigned currentCapacity = endOfBuffer - startOfBuffer;
+ unsigned usedCapacity = currentCapacity - (startOfData - startOfBuffer);
+
+ unsigned newCapacity = currentCapacity;
+ do {
+ newCapacity *= 2;
+ } while (newCapacity < usedCapacity + size);
----------------
xlauko wrote:
```suggestion
unsigned requiredCapacity = usedCapacity + size;
unsigned newCapacity = llvm::PowerOf2Ceil(std::max(requiredCapacity,
currentCapacity));
```
https://github.com/llvm/llvm-project/pull/152215
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