// RUN: cd %S
// RUN: %clang_cc1 -emit-pch -x objective-c-header %s -o %t_c00.pch -fno-pch-timestamp
// RUN: %clang_cc1 -emit-pch -x objective-c-header %s -o %t_c00_1.pch -fno-pch-timestamp
// RUN: diff %t_c00.pch %t_c00_1.pch
// RUN: %clang_cc1 -emit-pch -x objective-c-header %s -o %t_c00_2.pch -fno-pch-timestamp
// RUN: diff %t_c00.pch %t_c00_2.pch
// RUN: %clang_cc1 -emit-pch -x objective-c-header %s -o %t_c00_3.pch -fno-pch-timestamp
// RUN: diff %t_c00.pch %t_c00_3.pch
// RUN: %clang_cc1 -emit-pch -x objective-c-header %s -o %t_c00_4.pch -fno-pch-timestamp
// RUN: diff %t_c00.pch %t_c00_4.pch
// RUN: %clang_cc1 -emit-pch -x objective-c-header %s -o %t_c00_5.pch -fno-pch-timestamp
// RUN: diff %t_c00.pch %t_c00_5.pch