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      1 // RUN: %clang_cc1 %s -emit-llvm -o - -fblocks -triple x86_64-apple-darwin10 | FileCheck %s
      2 // rdar://9309454
      3 
      4 typedef struct { int v; } RetType;
      5 
      6 RetType func();
      7 
      8 int main () {
      9  __attribute__((__blocks__(byref))) RetType a = {100};
     10 
     11  a = func();
     12 }
     13 // CHECK: [[C1:%.*]] = call i32 (...)* @func()
     14 // CHECK-NEXT: [[CO:%.*]] = getelementptr
     15 // CHECK-NEXT: store i32 [[C1]], i32* [[CO]]
     16 // CHECK-NEXT: [[FORWARDING:%.*]] = getelementptr inbounds [[BR:%.*]]* [[A:%.*]], i32 0, i32 1
     17 // CHECK-NEXT: [[O:%.*]] = load [[BR]]** [[FORWARDING]]
     18