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llvm-project/clang/test/Preprocessor/mi_opt.c

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Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. - This is designed to make it obvious that %clang_cc1 is a "test variable" which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it can be useful to redefine what gets run as 'clang -cc1' (for example, to set a default target). llvm-svn: 91446
2009-12-16 04:14:24 +08:00
// RUN: not %clang_cc1 -fsyntax-only %s
Fix a nasty corner case that Neil noticed in PR1900, where we would incorrectly apply the multiple include optimization to files with guards like: #if !defined(x) MACRO where MACRO could expand to different things in different contexts. Thanks Neil! llvm-svn: 45716
2008-01-08 03:50:27 +08:00
// PR1900
// This test should get a redefinition error from m_iopt.h: the MI opt
// shouldn't apply.
#define MACRO
#include "mi_opt.h"
#undef MACRO
#define MACRO || 1
#include "mi_opt.h"