Swift Optimizer: add AllocRefInstBase.setIsStackAllocatable

Author: eeckstein

SwiftCompilerSources/Sources/Optimizer/PassManager/PassUtils.swift

@@ -165,3 +165,10 @@ extension Builder {
               passContext: context._bridged)
   }
 }
+
+extension AllocRefInstBase {
+  func setIsStackAllocatable(_ context: PassContext) {
+    AllocRefInstBase_setIsStackAllocatable(bridged)
+    context.notifyInstructionsChanged()
+  }
+}

include/swift/SILOptimizer/OptimizerBridging.h

@@ -130,6 +130,8 @@ void BasicBlockSet_insert(BridgedBasicBlockSet set, BridgedBasicBlock block);
 void BasicBlockSet_erase(BridgedBasicBlockSet set, BridgedBasicBlock block);
 BridgedFunction BasicBlockSet_getFunction(BridgedBasicBlockSet set);
 
+void AllocRefInstBase_setIsStackAllocatable(BridgedInstruction arb);
+
 #ifdef __cplusplus
 } // extern "C"
 #endif

lib/SILOptimizer/PassManager/PassManager.cpp

@@ -1315,3 +1315,7 @@ void BasicBlockSet_erase(BridgedBasicBlockSet set, BridgedBasicBlock block) {
 BridgedFunction BasicBlockSet_getFunction(BridgedBasicBlockSet set) {
   return {castToBlockSet(set)->getFunction()};
 }
+
+void AllocRefInstBase_setIsStackAllocatable(BridgedInstruction arb) {
+  castToInst<AllocRefInstBase>(arb)->setStackAllocatable();
+}