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Compiler.h: remove unused LLVM_NODISCARD

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Reviewed By: kazu

Differential Revision: https://reviews.llvm.org/D131695
This commit is contained in:
Fangrui Song 2022-08-11 11:06:24 -07:00
parent c4fb631cee
commit c2d293ea25
1 changed files with 0 additions and 17 deletions
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17
llvm/include/llvm/Support/Compiler.h
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@ -144,23 +144,6 @@
#define LLVM_DEPRECATED(MSG, FIX) [[deprecated(MSG)]]
#endif
/// LLVM_NODISCARD - Warn if a type or return value is discarded.
// Use the 'nodiscard' attribute in C++17 or newer mode.
#if defined(__cplusplus) && __cplusplus > 201402L && LLVM_HAS_CPP_ATTRIBUTE(nodiscard)
#define LLVM_NODISCARD [[nodiscard]]
#elif LLVM_HAS_CPP_ATTRIBUTE(clang::warn_unused_result)
#define LLVM_NODISCARD [[clang::warn_unused_result]]
// Clang in C++14 mode claims that it has the 'nodiscard' attribute, but also
// warns in the pedantic mode that 'nodiscard' is a C++17 extension (PR33518).
// Use the 'nodiscard' attribute in C++14 mode only with GCC.
// TODO: remove this workaround when PR33518 is resolved.
#elif defined(__GNUC__) && LLVM_HAS_CPP_ATTRIBUTE(nodiscard)
#define LLVM_NODISCARD [[nodiscard]]
#else
#define LLVM_NODISCARD
#endif
// Indicate that a non-static, non-const C++ member function reinitializes
// the entire object to a known state, independent of the previous state of
// the object.