Fix -Wunused-comparison for comparisons in arguments to function-like macros.
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.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172279 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/unused-expr-system-header.c b/test/Sema/unused-expr-system-header.c
index dcc8918..68c7e99 100644
--- a/test/Sema/unused-expr-system-header.c
+++ b/test/Sema/unused-expr-system-header.c
@@ -3,8 +3,10 @@
void f(int i1, int i2) {
POSSIBLY_BAD_MACRO(5);
STATEMENT_EXPR_MACRO(5);
- COMMA_MACRO_1(i1 == i2, f(i1, i2)); // expected-warning {{expression result unused}}
+ COMMA_MACRO_1(i1 == i2, f(i1, i2)); // expected-warning {{comparison result unused}} \
+ // expected-note {{equality comparison}}
COMMA_MACRO_2(i1 == i2, f(i1, i2));
- COMMA_MACRO_3(i1 == i2, f(i1, i2)); // expected-warning {{expression result unused}}
+ COMMA_MACRO_3(i1 == i2, f(i1, i2)); // expected-warning {{comparison result unused}} \
+ // expected-note {{equality comparison}}
COMMA_MACRO_4(i1 == i2, f(i1, i2));
}