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b1e71a7d0c
Previously, -Wunused-comparison ignored comparisons in both macro bodies and macro arguments, but we would still emit a -Wunused-value warning for either. Now we correctly emit -Wunused-comparison for expressions in macro arguments. Also, add isMacroBodyExpansion to SourceManager, to go along with isMacroArgExpansion. llvm-svn: 172279
13 lines
593 B
C
13 lines
593 B
C
// RUN: %clang_cc1 -isystem %S/Inputs -fsyntax-only -verify %s
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#include <unused-expr-system-header.h>
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void f(int i1, int i2) {
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POSSIBLY_BAD_MACRO(5);
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STATEMENT_EXPR_MACRO(5);
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COMMA_MACRO_1(i1 == i2, f(i1, i2)); // expected-warning {{comparison result unused}} \
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// expected-note {{equality comparison}}
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COMMA_MACRO_2(i1 == i2, f(i1, i2));
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COMMA_MACRO_3(i1 == i2, f(i1, i2)); // expected-warning {{comparison result unused}} \
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// expected-note {{equality comparison}}
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COMMA_MACRO_4(i1 == i2, f(i1, i2));
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}
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