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