__clear_cache() is varargs and people will occasionally write it without

arguments. Process only the arguments that people write, but process
all of them.

Fixes rdar://8900346

llvm-svn: 127616

1 files changed, 21 insertions, 0 deletions

diff --git a/clang/test/CodeGen/arm-clear.c b/clang/test/CodeGen/arm-clear.c
new file mode 100644
index 00000000000..eda64ce99ee
--- /dev/null
+++ b/clang/test/CodeGen/arm-clear.c
@@ -0,0 +1,21 @@
+// RUN: %clang_cc1 -triple armv7-apple-darwin9 -emit-llvm -w -o - %s | FileCheck %s
+
+void clear0(void *ptr) {
+  // CHECK: clear0
+  // CHECK-NOT: load i8**
+  __clear_cache();
+}
+
+void clear1(void *ptr) {
+  // CHECK: clear1
+  // CHECK: load i8**
+  // CHECK-NOT: load i8**
+  __clear_cache(ptr);
+}
+
+void clear2(void *ptr, void *ptr2) {
+  // CHECK: clear2
+  // CHECK: load i8**
+  // CHECK: load i8**
+  __clear_cache(ptr, ptr2);
+}