diff options
Diffstat (limited to 'clang/test/Sema/asm-goto.cpp')
-rw-r--r-- | clang/test/Sema/asm-goto.cpp | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/clang/test/Sema/asm-goto.cpp b/clang/test/Sema/asm-goto.cpp new file mode 100644 index 00000000000..f61a8096b83 --- /dev/null +++ b/clang/test/Sema/asm-goto.cpp @@ -0,0 +1,45 @@ +// RUN: %clang_cc1 %s -triple i386-pc-linux-gnu -verify -fsyntax-only + +struct NonTrivial { + ~NonTrivial(); + int f(int); +private: + int k; +}; +void JumpDiagnostics(int n) { +// expected-error@+1 {{cannot jump from this goto statement to its label}} + goto DirectJump; +// expected-note@+1 {{jump bypasses variable with a non-trivial destructor}} + NonTrivial tnp1; + +DirectJump: +// expected-error@+1 {{cannot jump from this asm goto statement to one of its possible targets}} + asm goto("jmp %l0;" ::::Later); +// expected-note@+1 {{jump bypasses variable with a non-trivial destructor}} + NonTrivial tnp2; +// expected-note@+1 {{possible target of asm goto statement}} +Later: + return; +} + +struct S { ~S(); }; +void foo(int a) { + if (a) { +FOO: +// expected-note@+2 {{jump exits scope of variable with non-trivial destructor}} +// expected-note@+1 {{jump exits scope of variable with non-trivial destructor}} + S s; + void *p = &&BAR; +// expected-error@+1 {{cannot jump from this asm goto statement to one of its possible targets}} + asm goto("jmp %l0;" ::::BAR); +// expected-error@+1 {{cannot jump from this indirect goto statement to one of its possible targets}} + goto *p; + p = &&FOO; + goto *p; + return; + } +// expected-note@+2 {{possible target of asm goto statement}} +// expected-note@+1 {{possible target of indirect goto statement}} +BAR: + return; +} |