OpenCL: disallow '#pragma OPENCL EXTENSION all : enable', per OpenCL 1.1 9.1
llvm-svn: 141270
diff --git a/clang/lib/Parse/ParsePragma.cpp b/clang/lib/Parse/ParsePragma.cpp
index 16a731b..2ccb6ea 100644
--- a/clang/lib/Parse/ParsePragma.cpp
+++ b/clang/lib/Parse/ParsePragma.cpp
@@ -451,8 +451,11 @@
}
OpenCLOptions &f = Actions.getOpenCLOptions();
- if (ename->isStr("all")) {
-#define OPENCLEXT(nm) f.nm = state;
+ // OpenCL 1.1 9.1: "The all variant sets the behavior for all extensions,
+ // overriding all previously issued extension directives, but only if the
+ // behavior is set to disable."
+ if (state == 0 && ename->isStr("all")) {
+#define OPENCLEXT(nm) f.nm = 0;
#include "clang/Basic/OpenCLExtensions.def"
}
#define OPENCLEXT(nm) else if (ename->isStr(#nm)) { f.nm = state; }