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-rw-r--r--gcc/testsuite/c-c++-common/pr69543-4.c25
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
+}