diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp index 7e7b2b395f7d63..a38484941ba246 100644 --- a/clang/lib/CodeGen/CGCall.cpp +++ b/clang/lib/CodeGen/CGCall.cpp @@ -2030,6 +2030,9 @@ static void getTrivialDefaultFunctionAttributes( std::tie(Var, Value) = Attr.split('='); FuncAttrs.addAttribute(Var, Value); } + + TargetInfo::BranchProtectionInfo BPI(LangOpts); + TargetCodeGenInfo::setBranchProtectionFnAttributes(BPI, FuncAttrs); } /// Merges `target-features` from \TargetOpts and \F, and sets the result in diff --git a/clang/test/CodeGenCXX/arm64-generated-fn-attr.cpp b/clang/test/CodeGenCXX/arm64-generated-fn-attr.cpp new file mode 100644 index 00000000000000..18d9da40d469bd --- /dev/null +++ b/clang/test/CodeGenCXX/arm64-generated-fn-attr.cpp @@ -0,0 +1,30 @@ +// RUN: %clang_cc1 -triple aarch64 -mbranch-target-enforce -msign-return-address=all -fcxx-exceptions -fexceptions -emit-llvm %s -o - | FileCheck %s + +// Check that functions generated by clang have the correct attributes + +class Example { +public: + Example(); + int fn(); +}; + +// Initialization of var1 causes __cxx_global_var_init and __tls_init to be generated +thread_local Example var1; +extern thread_local Example var2; +extern void fn(); + +int testfn() noexcept { + // Calling fn in a noexcept function causes __clang_call_terminate to be generated + fn(); + // Use of var1 and var2 causes TLS wrapper functions to be generated + return var1.fn() + var2.fn(); +} + +// CHECK: define {{.*}} @__cxx_global_var_init() [[ATTR1:#[0-9]+]] +// CHECK: define {{.*}} @__clang_call_terminate({{.*}}) [[ATTR2:#[0-9]+]] +// CHECK: define {{.*}} @_ZTW4var1() [[ATTR1]] +// CHECK: define {{.*}} @_ZTW4var2() [[ATTR1]] +// CHECK: define {{.*}} @__tls_init() [[ATTR1]] + +// CHECK: attributes [[ATTR1]] = { {{.*}}"branch-target-enforcement" {{.*}}"sign-return-address"="all" "sign-return-address-key"="a_key" +// CHECK: attributes [[ATTR2]] = { {{.*}}"branch-target-enforcement" {{.*}}"sign-return-address"="all" "sign-return-address-key"="a_key"