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29 lines
697 B
29 lines
697 B
// RUN: %clang_cc1 %s -emit-pch -o %t1.pch -verify
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// RUN: %clang_cc1 %s -emit-pch -o %t2.pch -include-pch %t1.pch -verify
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// RUN: %clang_cc1 -fsyntax-only %s -include-pch %t2.pch -verify
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// Test that a redefinition inside the PCH won't manifest as an ambiguous macro.
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// rdar://13016031
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#ifndef HEADER1
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#define HEADER1
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#define M1 0 // expected-note {{previous}}
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#define M1 1 // expected-warning {{redefined}}
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#define M2 3
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#elif !defined(HEADER2)
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#define HEADER2
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#define M2 4 // expected-warning {{redefined}}
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// expected-note@-6 {{previous}}
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#else
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// Use the error to verify it was parsed.
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int x = M1; // expected-note {{previous}}
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int x = M2; // expected-error {{redefinition}}
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#endif
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