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Control Flow Guard is only supported on Windows target, therefore there is no point to make it an accepted attribute for other targets. Reviewed By: rnk, aaron.ballman Differential Revision: https://reviews.llvm.org/D132661
48 lines
2.3 KiB
C
48 lines
2.3 KiB
C
// RUN: %clang_cc1 -triple %ms_abi_triple -fms-extensions -verify -fsyntax-only %s
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// RUN: %clang_cc1 -triple %ms_abi_triple -fms-extensions -verify -std=c++11 -fsyntax-only -x c++ %s
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// RUN: %clang_cc1 -triple x86_64-w64-windows-gnu -verify -fsyntax-only %s
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// RUN: %clang_cc1 -triple x86_64-w64-windows-gnu -verify -std=c++11 -fsyntax-only -x c++ %s
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// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -verify -fsyntax-only %s
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// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -verify -std=c++11 -fsyntax-only -x c++ %s
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// The x86_64-w64-windows-gnu version tests mingw target, which relies on
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// __declspec(...) being defined as __attribute__((...)) by compiler built-in.
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#if defined(_WIN32)
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// Function definition.
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__declspec(guard(nocf)) void testGuardNoCF(void) { // no warning
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}
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// Function definition using GNU-style attribute without relying on the
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// __declspec define for mingw.
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__attribute__((guard(nocf))) void testGNUStyleGuardNoCF(void) { // no warning
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}
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// Can not be used on variable, parameter, or function pointer declarations.
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int __declspec(guard(nocf)) i; // expected-warning {{'guard' attribute only applies to functions}}
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void testGuardNoCFFuncParam(double __declspec(guard(nocf)) i) {} // expected-warning {{'guard' attribute only applies to functions}}
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__declspec(guard(nocf)) typedef void (*FuncPtrWithGuardNoCF)(void); // expected-warning {{'guard' attribute only applies to functions}}
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// 'guard' Attribute requries an argument.
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__declspec(guard) void testGuardNoCFParams(void) { // expected-error {{'guard' attribute takes one argument}}
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}
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// 'guard' Attribute requries an identifier as argument.
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__declspec(guard(1)) void testGuardNoCFParamType(void) { // expected-error {{'guard' attribute requires an identifier}}
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}
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// 'guard' Attribute only takes a single argument.
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__declspec(guard(nocf, nocf)) void testGuardNoCFTooManyParams(void) { // expected-error {{use of undeclared identifier 'nocf'}}
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}
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// 'guard' Attribute argument must be a supported identifier.
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__declspec(guard(cf)) void testGuardNoCFInvalidParam(void) { // expected-warning {{'guard' attribute argument not supported: 'cf'}}
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}
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#else
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__attribute((guard(nocf))) void testGNUStyleGuardNoCF(void) {} // expected-warning {{unknown attribute 'guard' ignored}}
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#endif
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