[PATCH] D94854: [Clang] Fix SwiftCallingConv's aggregate lowering for _Atomic(_Bool).

[Varun Gandhi via Phabricator via cfe-commits]

varungandhi-apple created this revision.
varungandhi-apple added reviewers: aschwaighofer, rjmccall.
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varungandhi-apple requested review of this revision.
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Fixes rdar://72999296.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D94854

Files:
  clang/lib/CodeGen/SwiftCallingConv.cpp


Index: clang/lib/CodeGen/SwiftCallingConv.cpp
===================================================================
--- clang/lib/CodeGen/SwiftCallingConv.cpp
+++ clang/lib/CodeGen/SwiftCallingConv.cpp
@@ -99,6 +99,15 @@
     auto atomicSize = CGM.getContext().getTypeSizeInChars(atomicType);
     auto valueSize = CGM.getContext().getTypeSizeInChars(valueType);
 
+    auto valueTy = atomicType->getValueType();
+    // _Atomic(_Bool) does not correspond to i1.
+    if (valueTy == CGM.getContext().BoolTy) {
+      addTypedData(llvm::Type::getIntNTy(CGM.getLLVMContext(),
+                                         CGM.getContext().toBits(valueSize)),
+                   begin);
+    } else {
+      addTypedData(atomicType->getValueType(), begin);
+    }
     addTypedData(atomicType->getValueType(), begin);
 
     // Add atomic padding.


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