From 0dfb889575a64478b86ca1633fd10a4ca42a7648 Mon Sep 17 00:00:00 2001
From: Eli Friedman <eli.friedman@gmail.com>
Date: Thu, 6 Oct 2011 23:00:33 +0000
Subject: Support for C1x _Atomic specifier (see testcase).  This is primarily
 being committed at the moment to help support C++0x <atomic>, but it should
 be a solid base for implementing the full specification of C1x _Atomic.

Thanks to Jeffrey Yasskin for the thorough review!

llvm-svn: 141330
---
 clang/lib/CodeGen/CodeGenFunction.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'clang/lib/CodeGen/CodeGenFunction.cpp')

diff --git a/clang/lib/CodeGen/CodeGenFunction.cpp b/clang/lib/CodeGen/CodeGenFunction.cpp
index 12def67..2c6e7b0 100644
--- a/clang/lib/CodeGen/CodeGenFunction.cpp
+++ b/clang/lib/CodeGen/CodeGenFunction.cpp
@@ -87,6 +87,10 @@ bool CodeGenFunction::hasAggregateLLVMType(QualType type) {
   case Type::ObjCObject:
   case Type::ObjCInterface:
     return true;
+
+  // In IRGen, atomic types are just the underlying type
+  case Type::Atomic:
+    return hasAggregateLLVMType(type->getAs<AtomicType>()->getValueType());
   }
   llvm_unreachable("unknown type kind!");
 }
@@ -983,6 +987,10 @@ void CodeGenFunction::EmitVariablyModifiedType(QualType type) {
     case Type::FunctionNoProto:
       type = cast<FunctionType>(ty)->getResultType();
       break;
+
+    case Type::Atomic:
+      type = cast<AtomicType>(ty)->getValueType();
+      break;
     }
   } while (type->isVariablyModifiedType());
 }
-- 
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