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8fbe78f6fc
- 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
53 lines
712 B
C
53 lines
712 B
C
/* RUN: %clang_cc1 -E %s -DNO_ERRORS -Werror -Wundef
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RUN: not %clang_cc1 -E %s
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*/
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#ifdef NO_ERRORS
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/* None of these divisions by zero are in live parts of the expression, do not
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emit any diagnostics. */
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#define MACRO_0 0
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#define MACRO_1 1
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#if MACRO_0 && 10 / MACRO_0
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foo
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#endif
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#if MACRO_1 || 10 / MACRO_0
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bar
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#endif
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#if 0 ? 124/0 : 42
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#endif
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// PR2279
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#if 0 ? 1/0: 2
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#else
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#error
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#endif
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// PR2279
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#if 1 ? 2 ? 3 : 4 : 5
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#endif
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// PR2284
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#if 1 ? 0: 1 ? 1/0: 1/0
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#endif
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#else
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/* The 1/0 is live, it should error out. */
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#if 0 && 1 ? 4 : 1 / 0
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baz
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#endif
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#endif
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// rdar://6505352
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// -Wundef should not warn about use of undefined identifier if not live.
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#if (!defined(XXX) || XXX > 42)
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#endif
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