llvm-capstone/clang/test/PCH/macro-redef.c
Argyrios Kyrtzidis 1ffbc3a92a [PCH] Temporarily disable the "ambiguous macro" warning that is currently bogus with a PCH
that redefined a macro without undef'ing it first.

Proper reconstruction of the macro info history from modules will properly fix this in subsequent commits.

rdar://13016031

llvm-svn: 173281
2013-01-23 18:21:56 +00:00

29 lines
697 B
C

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