Implement block pseudo-storage class modifiers (__block, __byref).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55635 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/Preprocessor.cpp b/lib/Lex/Preprocessor.cpp
index 18b106a..27c2e67 100644
--- a/lib/Lex/Preprocessor.cpp
+++ b/lib/Lex/Preprocessor.cpp
@@ -476,6 +476,13 @@
DefineBuiltinMacro(Buf, "__int64=long long");
DefineBuiltinMacro(Buf, "__declspec(X)=");
}
+ if (PP.getLangOptions().Blocks) {
+ DefineBuiltinMacro(Buf, "__byref=__attribute__((__blocks__(byref)))");
+ DefineBuiltinMacro(Buf, "__block=__attribute__((__blocks__(byref)))");
+ } else {
+ DefineBuiltinMacro(Buf, "__byref=");
+ DefineBuiltinMacro(Buf, "__block=");
+ }
// FIXME: Should emit a #line directive here.
}
diff --git a/test/Parser/block-block-storageclass.c b/test/Parser/block-block-storageclass.c
new file mode 100644
index 0000000..c15d731
--- /dev/null
+++ b/test/Parser/block-block-storageclass.c
@@ -0,0 +1,18 @@
+// RUN: clang -fsyntax-only -verify -parse-noop %s
+
+#include <stdio.h>
+void _Block_byref_release(void*src){}
+
+int main() {
+ __block int X = 1234;
+ __block const char * message = "HELLO";
+
+ X = X - 1234;
+
+ X += 1;
+
+ printf ("%s(%d)\n", message, X);
+ X -= 1;
+
+ return X;
+}