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| author | lntue <lntue@google.com> | 2025-07-23 17:16:09 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-07-23 13:16:09 -0400 |
| commit | 8ef0c50ecac8f1e707c02bee855f43eda114f8db (patch) | |
| tree | edb8af92e00bf29817dcc55f59c9f2cf6487785b | |
| parent | 7baf4bdd164cad61f8f3e34ed833a695c4033250 (diff) | |
| download | llvm-8ef0c50ecac8f1e707c02bee855f43eda114f8db.zip llvm-8ef0c50ecac8f1e707c02bee855f43eda114f8db.tar.gz llvm-8ef0c50ecac8f1e707c02bee855f43eda114f8db.tar.bz2 | |
[libc] Fix problem with older compilers that do not have __has_builtin. (#150264)
Fixing bot failures:
https://lab.llvm.org/buildbot/#/builders/10/builds/10025
| -rw-r--r-- | libc/src/__support/CPP/type_traits/is_constant_evaluated.h | 4 | ||||
| -rw-r--r-- | libc/src/__support/macros/attributes.h | 6 |
2 files changed, 10 insertions, 0 deletions
diff --git a/libc/src/__support/CPP/type_traits/is_constant_evaluated.h b/libc/src/__support/CPP/type_traits/is_constant_evaluated.h index 0bb2d08..9339af4 100644 --- a/libc/src/__support/CPP/type_traits/is_constant_evaluated.h +++ b/libc/src/__support/CPP/type_traits/is_constant_evaluated.h @@ -15,7 +15,11 @@ namespace LIBC_NAMESPACE_DECL { namespace cpp { LIBC_INLINE constexpr bool is_constant_evaluated() { +#if LIBC_HAS_BUILTIN(__builtin_is_constant_evaluated) return __builtin_is_constant_evaluated(); +#else + return false; +#endif } } // namespace cpp diff --git a/libc/src/__support/macros/attributes.h b/libc/src/__support/macros/attributes.h index c647467..62b0f7c 100644 --- a/libc/src/__support/macros/attributes.h +++ b/libc/src/__support/macros/attributes.h @@ -48,4 +48,10 @@ #define LIBC_PREFERED_TYPE(TYPE) #endif +#ifndef __has_builtin +#define LIBC_HAS_BUILTIN(X) 0 +#else +#define LIBC_HAS_BUILTIN(X) __has_builtin(X) +#endif + #endif // LLVM_LIBC_SRC___SUPPORT_MACROS_ATTRIBUTES_H |