9dc1da6e87
Add support for `[[msvc::forceinline]]` and `[[msvc::forceinline_calls]]`. `[[msvc::forceinline]]` is equivalent to Microsoft's `__forceinline` when placed before a function declaration. Unlike `__forceinline`, `[[msvc::forceinline]]` works with lambdas. `[[msvc::forceinline_calls]]` is simliar to `[[clang::always_inline]]` but only works on statements. Both are implemented as aliases of `[[clang::always_inline]]` with special checks. Fixes #186539.
39 lines
1.5 KiB
C++
39 lines
1.5 KiB
C++
// RUN: %clang_cc1 -verify=ms-ext -fms-extensions -fsyntax-only -std=c++23 %s
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// RUN: %clang_cc1 -verify=no-ms-ext -fsyntax-only -std=c++23 %s
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void foo();
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[[msvc::forceinline]] void func() {}
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// no-ms-ext-warning@-1 {{'msvc::forceinline' attribute ignored}}
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void lambda_func() {
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auto l = [] [[msvc::forceinline]] () {};
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// no-ms-ext-warning@-1 {{'msvc::forceinline' attribute ignored}}
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l();
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}
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void stmt_forceinline() {
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[[msvc::forceinline]] func();
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// ms-ext-warning@-1 {{attribute is ignored on this statement as it only applies to functions; use '[[msvc::forceinline_calls]]' on statements}}
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// no-ms-ext-warning@-2 {{'msvc::forceinline' attribute ignored}}
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}
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[[msvc::forceinline_calls]] void func2() {}
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// ms-ext-warning@-1 {{attribute is ignored on this function as it only applies to statements; use '[[msvc::forceinline]]' for functions}}
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// no-ms-ext-warning@-2 {{'msvc::forceinline_calls' attribute ignored}}
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void stmt_forceinline_calls() {
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[[msvc::forceinline_calls]] foo();
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// no-ms-ext-warning@-1 {{'msvc::forceinline_calls' attribute ignored}}
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}
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[[msvc::forceinline(0)]] void func3();
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// ms-ext-error@-1 {{'msvc::forceinline' attribute takes no arguments}}
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// no-ms-ext-error@-2 {{'msvc::forceinline' attribute takes no arguments}}
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void func4() {
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[[msvc::forceinline_calls("foo")]] foo();
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// ms-ext-error@-1 {{'msvc::forceinline_calls' attribute takes no arguments}}
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// no-ms-ext-error@-2 {{'msvc::forceinline_calls' attribute takes no arguments}}
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}
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