Implemented #pragma GCC warning/error in the same mould as #pragma message.

llvm-svn: 179687

1 files changed, 16 insertions, 0 deletions

diff --git a/clang/test/Lexer/pragma-message.c b/clang/test/Lexer/pragma-message.c
index b67886fa330..d0bbe9ea3a6 100644
--- a/clang/test/Lexer/pragma-message.c
+++ b/clang/test/Lexer/pragma-message.c
@@ -14,3 +14,19 @@
 #pragma message ":O gcc accepts this! " STRING(__LINE__) // expected-warning {{:O gcc accepts this! 14}}
 
 #pragma message(invalid) // expected-error {{expected string literal in pragma message}}
+
+// GCC supports a similar pragma, #pragma GCC warning (which generates a warning
+// message) and #pragma GCC error (which generates an error message).
+
+#pragma GCC warning(":O I'm a message! " STRING(__LINE__)) // expected-warning {{:O I'm a message! 21}}
+#pragma GCC warning ":O gcc accepts this! " STRING(__LINE__) // expected-warning {{:O gcc accepts this! 22}}
+
+#pragma GCC error(":O I'm a message! " STRING(__LINE__)) // expected-error {{:O I'm a message! 24}}
+#pragma GCC error ":O gcc accepts this! " STRING(__LINE__) // expected-error {{:O gcc accepts this! 25}}
+
+#define COMPILE_ERROR(x) _Pragma(STRING2(GCC error(x)))
+COMPILE_ERROR("Compile error at line " STRING(__LINE__) "!"); // expected-error {{Compile error at line 28!}}
+
+#pragma message // expected-error {{pragma message requires parenthesized string}}
+#pragma GCC warning("" // expected-error {{pragma warning requires parenthesized string}}
+#pragma GCC error(1) // expected-error {{expected string literal in pragma error}}