IRGen: Add IRGenFunction::getTypeLowering()

Author: slavapestov

lib/IRGen/GenOpaque.cpp

@@ -26,6 +26,7 @@
 #include "swift/AST/IRGenOptions.h"
 #include "swift/ABI/MetadataValues.h"
 #include "swift/IRGen/ValueWitness.h"
+#include "swift/SIL/TypeLowering.h"
 
 #include "Callee.h"
 #include "Explosion.h"
@@ -719,7 +720,7 @@ void irgen::emitDestroyArrayCall(IRGenFunction &IGF,
                                  Address object,
                                  llvm::Value *count) {
   // If T is a trivial/POD type, nothing needs to be done.
-  if (T.getObjectType().isTrivial(IGF.getSILModule()))
+  if (IGF.IGM.getTypeLowering(T).isTrivial())
     return;
 
   auto metadata = IGF.emitTypeMetadataRefForLayout(T);
@@ -994,7 +995,7 @@ void irgen::emitDestroyCall(IRGenFunction &IGF,
                             SILType T,
                             Address object) {
   // If T is a trivial/POD type, nothing needs to be done.
-  if (T.getObjectType().isTrivial(IGF.getSILModule()))
+  if (IGF.IGM.getTypeLowering(T).isTrivial())
     return;
   llvm::Value *metadata;
   auto fn = IGF.emitValueWitnessFunctionRef(T, metadata,

lib/IRGen/GenType.cpp

@@ -1446,6 +1446,13 @@ SILType IRGenModule::getLoweredType(Type subst) const {
                                       ResilienceExpansion::Minimal);
 }
 
+/// Return the SIL-lowering of the given type.
+const Lowering::TypeLowering &IRGenModule::getTypeLowering(SILType type) const {
+  // FIXME: Expansion
+  return getSILTypes().getTypeLowering(type,
+                                       ResilienceExpansion::Minimal);
+}
+
 bool IRGenModule::isTypeABIAccessible(SILType type) const {
   // FIXME: Expansion
   return getSILModule().isTypeABIAccessible(type,

lib/IRGen/IRGenModule.h

@@ -749,6 +749,7 @@ class IRGenModule {
 
   SILType getLoweredType(AbstractionPattern orig, Type subst) const;
   SILType getLoweredType(Type subst) const;
+  const Lowering::TypeLowering &getTypeLowering(SILType type) const;
   bool isTypeABIAccessible(SILType type) const;
 
   const TypeInfo &getTypeInfoForUnlowered(AbstractionPattern orig,