diff options
Diffstat (limited to 'gcc/testsuite/c-c++-common/pr69543-4.c')
-rw-r--r-- | gcc/testsuite/c-c++-common/pr69543-4.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/c-c++-common/pr69543-4.c b/gcc/testsuite/c-c++-common/pr69543-4.c new file mode 100644 index 0000000000..cd71e7e118 --- /dev/null +++ b/gcc/testsuite/c-c++-common/pr69543-4.c @@ -0,0 +1,25 @@ +/* { dg-options "-Wuninitialized" } */ + +/* Verify disabling a warning, where both the _Pragma and the + affected code are within (different) macros. */ + +/* TODO: XFAIL: both C and C++ erroneously fail to suppress the warning + The warning is reported at the macro definition location, rather than + the macro expansion location. */ + +# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \ + _Pragma ("GCC diagnostic push") \ + _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\ + _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"") +# define YY_IGNORE_MAYBE_UNINITIALIZED_END \ + _Pragma ("GCC diagnostic pop") + +#define WARNABLE_CODE *++yyvsp = yylval; /* { dg-bogus "used uninitialized" "" { xfail *-*-* } } */ + +void test (char yylval) +{ + char *yyvsp; /* { dg-bogus "declared here" "" { xfail *-*-* } } */ + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN + WARNABLE_CODE + YY_IGNORE_MAYBE_UNINITIALIZED_END +} |