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      1 // RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s
      2 
      3 typedef union {
      4   int    i;
      5   float  f;
      6 } MyUnion;
      7 void unionf(MyUnion a);
      8 void uniontest(float a) {
      9   f((MyUnion)1.0f);
     10 // CHECK: store float 1.000000e+00
     11 }
     12 
     13