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author | Dimitry Andric <dim@FreeBSD.org> | 2018-07-28 11:06:01 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2018-07-28 11:06:01 +0000 |
commit | 486754660bb926339aefcf012a3f848592babb8b (patch) | |
tree | ecdbc446c9876f4f120f701c243373cd3cb43db3 /test/Sema/attr-nocf_check.c | |
parent | 55e6d896ad333f07bb3b1ba487df214fc268a4ab (diff) | |
download | src-e840ccaca250d542d229ef559f5dbc4689265313.tar.gz src-e840ccaca250d542d229ef559f5dbc4689265313.zip |
Vendor import of clang trunk r338150:vendor/clang/clang-trunk-r338150
Diffstat (limited to 'test/Sema/attr-nocf_check.c')
-rw-r--r-- | test/Sema/attr-nocf_check.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/test/Sema/attr-nocf_check.c b/test/Sema/attr-nocf_check.c new file mode 100644 index 000000000000..9ca1bb173439 --- /dev/null +++ b/test/Sema/attr-nocf_check.c @@ -0,0 +1,23 @@ +// RUN: %clang_cc1 -triple=x86_64-unknown-unknown -verify -fcf-protection=branch -fsyntax-only %s + +// Function pointer definition. +typedef void (*FuncPointerWithNoCfCheck)(void) __attribute__((nocf_check)); // no-warning +typedef void (*FuncPointer)(void); + +// Dont allow function declaration and definition mismatch. +void __attribute__((nocf_check)) testNoCfCheck(); // expected-note {{previous declaration is here}} +void testNoCfCheck(){}; // expected-error {{conflicting types for 'testNoCfCheck'}} + +// No variable or parameter declaration +__attribute__((nocf_check)) int i; // expected-warning {{'nocf_check' attribute only applies to function}} +void testNoCfCheckImpl(double __attribute__((nocf_check)) i) {} // expected-warning {{'nocf_check' attribute only applies to function}} + +// Allow attributed function pointers as well as casting between attributed +// and non-attributed function pointers. +void testNoCfCheckMismatch(FuncPointer f) { + FuncPointerWithNoCfCheck fNoCfCheck = f; // expected-warning {{incompatible function pointer types}} + (*fNoCfCheck)(); // no-warning +} + +// 'nocf_check' Attribute has no parameters. +int testNoCfCheckParams() __attribute__((nocf_check(1))); // expected-error {{'nocf_check' attribute takes no arguments}} |