__builtin_prefetch should be declared as "void __builtin_prefetch(const void *)",

not "const void __builtin_prefetch(void *)".  This fixes PR3912.

llvm-svn: 69425

1 files changed, 6 insertions, 1 deletions

diff --git a/clang/test/Sema/statements.c b/clang/test/Sema/statements.c
index 3af984ada45..9a71a403700 100644
--- a/clang/test/Sema/statements.c
+++ b/clang/test/Sema/statements.c
@@ -21,4 +21,9 @@ int test6() { return ({5;}); }
 void test7() { ({5;}); }                   // expected-warning {{expression result unused}}
 
 // PR3062
-int x[({10;})]; // expected-error {{statement expression not allowed at file scope}}
+int test8[({10;})]; // expected-error {{statement expression not allowed at file scope}}
+
+// PR3912
+void test9(const void *P) {
+  __builtin_prefetch(P);
+}