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							// Test this without pch.
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							// RUN: %clang_cc1 %s -include %s.h -emit-llvm -o %t.withoutpch.ll
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							// Test with pch.
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							// RUN: %clang_cc1 %s.h -emit-pch -o %t.pch
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							// RUN: %clang_cc1 %s -include-pch %t.pch -emit-llvm -o %t.withpch.ll
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							// RUN: diff %t.withoutpch.ll %t.withpch.ll
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