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-rw-r--r--clang/test/CodeGenCXX/const-base-cast.cpp10
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diff --git a/clang/test/CodeGenCXX/const-base-cast.cpp b/clang/test/CodeGenCXX/const-base-cast.cpp
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+++ b/clang/test/CodeGenCXX/const-base-cast.cpp
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+// RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s
+
+// Check that the following construct, which is similar to one which occurs
+// in Firefox, is folded correctly.
+struct A { char x; };
+struct B { char y; };
+struct C : A,B {};
+unsigned char x = ((char*)(B*)(C*)0x1000) - (char*)0x1000;
+
+// CHECK: @x = global i8 1