CalleeAnalysis: add getDestructors(destroyInst: Instruction)

Author: eeckstein

SwiftCompilerSources/Sources/Optimizer/Analysis/CalleeAnalysis.swift

@@ -19,6 +19,11 @@ public struct CalleeAnalysis {
   public func getCallees(callee: Value) -> FunctionArray {
     return FunctionArray(bridged: CalleeAnalysis_getCallees(bridged, callee.bridged))
   }
+
+  public func getDestructors(destroyInst: Instruction) -> FunctionArray {
+    return FunctionArray(bridged:
+      CalleeAnalysis_getInstCallees(bridged, destroyInst.bridged))
+  }
 }
 
 public struct FunctionArray : RandomAccessCollection, FormattedLikeArray {

include/swift/SILOptimizer/OptimizerBridging.h

@@ -90,6 +90,8 @@ BridgedCalleeAnalysis PassContext_getCalleeAnalysis(BridgedPassContext context);
 
 BridgedCalleeList CalleeAnalysis_getCallees(BridgedCalleeAnalysis calleeAnalysis,
                                             BridgedValue callee);
+BridgedCalleeList CalleeAnalysis_getInstCallees(BridgedCalleeAnalysis calleeAnalysis,
+                                                BridgedInstruction inst);
 SwiftInt BridgedFunctionArray_size(BridgedCalleeList callees);
 BridgedFunction BridgedFunctionArray_get(BridgedCalleeList callees,
                                          SwiftInt index);

lib/SILOptimizer/Analysis/BasicCalleeAnalysis.cpp

@@ -332,6 +332,13 @@ BridgedCalleeList CalleeAnalysis_getCallees(BridgedCalleeAnalysis calleeAnalysis
   return {cl.getOpaquePtr(), cl.getOpaqueKind(), cl.isIncomplete()};
 }
 
+BridgedCalleeList CalleeAnalysis_getInstCallees(BridgedCalleeAnalysis calleeAnalysis,
+                                                BridgedInstruction inst) {
+  BasicCalleeAnalysis *bca = static_cast<BasicCalleeAnalysis *>(calleeAnalysis.bca);
+  CalleeList cl = bca->getCalleeList(castToInst(inst));
+  return {cl.getOpaquePtr(), cl.getOpaqueKind(), cl.isIncomplete()};
+}
+
 SwiftInt BridgedFunctionArray_size(BridgedCalleeList callees) {
   CalleeList cl = CalleeList::fromOpaque(callees.opaquePtr, callees.kind,
                                          callees.incomplete);