diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp --- a/clang/lib/Sema/SemaChecking.cpp +++ b/clang/lib/Sema/SemaChecking.cpp @@ -1847,6 +1847,11 @@ if (SemaBuiltinOSLogFormat(TheCall)) return ExprError(); break; + case Builtin::BI__builtin_frame_address: + case Builtin::BI__builtin_return_address: + if (!SemaBuiltinConstantArgRange(TheCall, 0, 0, 0xFFFF)) + return ExprError(); + break; } // Since the target specific builtins for each arch overlap, only check those diff --git a/clang/test/Sema/builtin-stackaddress.c b/clang/test/Sema/builtin-stackaddress.c --- a/clang/test/Sema/builtin-stackaddress.c +++ b/clang/test/Sema/builtin-stackaddress.c @@ -1,5 +1,6 @@ // RUN: %clang_cc1 -fsyntax-only -verify %s -void* a(unsigned x) { + +void a(unsigned x) { return __builtin_return_address(0); } @@ -8,9 +9,30 @@ } void* c(unsigned x) { +// expected-error@+1 {{argument value 4294967295 is outside the valid range [0, 65535]}} +return __builtin_return_address(-1); +} + +void* d(unsigned x) { +// expected-error@+1 {{argument value 1048575 is outside the valid range [0, 65535]}} +return __builtin_return_address(0xFFFFF); +} + +void* e(unsigned x) { return __builtin_frame_address(0); } -void d(unsigned x) { -return __builtin_frame_address(x); // expected-error{{argument to '__builtin_frame_address' must be a constant integer}} +void f(unsigned x) { +// expected-error@+1 {{argument to '__builtin_frame_address' must be a constant integer}} +return __builtin_frame_address(x); +} + +void* g(unsigned x) { +// expected-error@+1 {{argument value 4294967295 is outside the valid range [0, 65535]}} +return __builtin_frame_address(-1); +} + +void* h(unsigned x) { +// expected-error@+1 {{argument value 1048575 is outside the valid range [0, 65535]}} +return __builtin_frame_address(0xFFFFF); }