Diagnose CXX 'this' pointer reference in funcs with naked attr
Clang asserts for this pointer reference in asms of naked functions.
This patch diagnoses if this pointer reference is used.
Differential Revision: http://reviews.llvm.org/D7329
llvm-svn: 228052
diff --git a/clang/test/Sema/attr-naked.cpp b/clang/test/Sema/attr-naked.cpp
new file mode 100644
index 0000000..eaa8e22
--- /dev/null
+++ b/clang/test/Sema/attr-naked.cpp
@@ -0,0 +1,15 @@
+// RUN: %clang_cc1 %s -verify -fsyntax-only -triple arm-none-linux
+class Foo {
+ void bar();
+ static void bar2();
+ unsigned v;
+ static unsigned s;
+};
+
+void __attribute__((naked)) Foo::bar() { // expected-note{{attribute is here}}
+ asm("mov r2, %0" : : "r"(v)); // expected-error{{'this' pointer references not allowed in naked functions}}
+}
+
+void __attribute__((naked)) Foo::bar2() {
+ asm("mov r2, %0" : : "r"(s)); // static member reference is OK
+}