[clang] [clang][bytecode] Stack-allocate bottom function frame (PR #125253)

[Jorge Gorbe Moya via cfe-commits]

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@@ -27,7 +27,7 @@ bool InterpState::inConstantContext() const {
 }
 
 InterpState::~InterpState() {
-  while (Current) {
+  while (Current && !Current->isBottomFrame()) {
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slackito wrote:

This is causing use-after-destruction errors for me when running clang tests under MemorySanitizer.

If I understand correctly, after the body of `~EvalEmitter()` finishes running, its members are destroyed in reverse order of declaration, and `BottomFrame` gets destroyed before the destructor for `InterpState S;` runs.


https://github.com/llvm/llvm-project/pull/125253