blocks: Support capturing complex variable in block.

// rdar://10033896

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139041 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/CGExprComplex.cpp b/lib/CodeGen/CGExprComplex.cpp
index 1a27d1322bc60b5c7287262e66ebdf29f427c5e2..c7b9a3071659fef5a6fc5ebffc63269070c424b0 100644 (file)
--- a/lib/CodeGen/CGExprComplex.cpp
+++ b/lib/CodeGen/CGExprComplex.cpp
@@ -119,6 +119,7 @@ public:
 
   // l-values.
   ComplexPairTy VisitDeclRefExpr(const Expr *E) { return EmitLoadOfLValue(E); }
+  ComplexPairTy VisitBlockDeclRefExpr(const Expr *E) { return EmitLoadOfLValue(E); }
   ComplexPairTy VisitObjCIvarRefExpr(ObjCIvarRefExpr *E) {
     return EmitLoadOfLValue(E);
   }

diff --git a/test/CodeGen/capture-complex-expr-in-block.c b/test/CodeGen/capture-complex-expr-in-block.c
new file mode 100644 (file)
index 0000000..c388237
--- /dev/null
+++ b/test/CodeGen/capture-complex-expr-in-block.c
@@ -0,0 +1,20 @@
+// RUN: %clang_cc1 %s -emit-llvm -o - -fblocks -triple x86_64-apple-darwin10 | FileCheck %s
+// rdar://10033986
+
+typedef void (^BLOCK)(void);
+int main ()
+{
+    _Complex double c;
+    BLOCK b =  ^() {
+      _Complex double z;
+      z = z + c;
+    };
+    b();
+}
+
+// CHECK: define internal void @__main_block_invoke_0
+// CHECK:  [[C1:%.*]] = alloca { double, double }, align 8
+// CHECK:  [[C1]].realp = getelementptr inbounds { double, double }* [[C1]], i32 0, i32 0
+// CHECK-NEXT:  [[C1]].real = load double* [[C1]].realp
+// CHECK-NEXT:  [[C1]].imagp = getelementptr inbounds { double, double }* [[C1]], i32 0, i32 1
+// CHECK-NEXT:  [[C1]].imag = load double* [[C1]].imagp