Reland "CFI: blacklist STL allocate() from unrelated-casts"
Reland r310097 with a fix for a debug assertion in NamedDecl.getName()
Differential Revision: https://reviews.llvm.org/D36294
llvm-svn: 310132
diff --git a/clang/test/CodeGen/cfi-unrelated-cast.cpp b/clang/test/CodeGen/cfi-unrelated-cast.cpp
new file mode 100644
index 0000000..d01cdf0
--- /dev/null
+++ b/clang/test/CodeGen/cfi-unrelated-cast.cpp
@@ -0,0 +1,37 @@
+// STL allocators should not have unrelated-cast tests applied
+// RUN: %clang_cc1 -flto -triple x86_64-unknown-linux -fvisibility hidden -fsanitize=cfi-unrelated-cast -emit-llvm -o - %s | FileCheck %s
+
+#include <stddef.h>
+
+template<class T>
+class myalloc {
+ public:
+ // CHECK: define{{.*}}allocateE{{.}}
+ // CHECK-NOT: llvm.type.test
+ T *allocate(size_t sz) {
+ return (T*)::operator new(sz);
+ }
+
+ // CHECK: define{{.*}}allocateE{{.}}PKv
+ // CHECK-NOT: llvm.type.test
+ T *allocate(size_t sz, const void *ptr) {
+ return (T*)::operator new(sz);
+ }
+
+ // CHECK: define{{.*}}differentName
+ // CHECK: llvm.type.test
+ T *differentName(size_t sz, const void *ptr) {
+ return (T*)::operator new(sz);
+ }
+};
+
+class C1 {
+ virtual void f() {}
+};
+
+C1 *f1() {
+ myalloc<C1> allocator;
+ (void)allocator.allocate(16);
+ (void)allocator.allocate(16, 0);
+ (void)allocator.differentName(16, 0);
+}