1*67e74705SXin Li // RUN: %clang_cc1 %s -emit-pch -o %t1.pch -verify 2*67e74705SXin Li // RUN: %clang_cc1 %s -emit-pch -o %t2.pch -include-pch %t1.pch -verify 3*67e74705SXin Li // RUN: %clang_cc1 -fsyntax-only %s -include-pch %t2.pch -verify 4*67e74705SXin Li 5*67e74705SXin Li // Test that a redefinition inside the PCH won't manifest as an ambiguous macro. 6*67e74705SXin Li // rdar://13016031 7*67e74705SXin Li 8*67e74705SXin Li #ifndef HEADER1 9*67e74705SXin Li #define HEADER1 10*67e74705SXin Li 11*67e74705SXin Li #define M1 0 // expected-note {{previous}} 12*67e74705SXin Li #define M1 1 // expected-warning {{redefined}} 13*67e74705SXin Li 14*67e74705SXin Li #define M2 3 15*67e74705SXin Li 16*67e74705SXin Li #elif !defined(HEADER2) 17*67e74705SXin Li #define HEADER2 18*67e74705SXin Li 19*67e74705SXin Li #define M2 4 // expected-warning {{redefined}} 20*67e74705SXin Li // expected-note@-6 {{previous}} 21*67e74705SXin Li 22*67e74705SXin Li #else 23*67e74705SXin Li 24*67e74705SXin Li // Use the error to verify it was parsed. 25*67e74705SXin Li int x = M1; // expected-note {{previous}} 26*67e74705SXin Li int x = M2; // expected-error {{redefinition}} 27*67e74705SXin Li 28*67e74705SXin Li #endif 29