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Reintroduce alwaysinline and nodebug as fallbacks to SWIFT_INLINE_THU… #64908

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Merged
merged 1 commit into from
Apr 5, 2023
Merged

Reintroduce alwaysinline and nodebug as fallbacks to SWIFT_INLINE_THU… #64908

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13 changes: 8 additions & 5 deletions lib/PrintAsClang/_SwiftCxxInteroperability.h
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Original file line number Diff line number Diff line change
Expand Up @@ -30,18 +30,21 @@

#if __has_attribute(transparent_stepping)
#define SWIFT_INLINE_THUNK_ATTRIBUTES \
__attribute__((transparent_stepping))
__attribute__((transparent_stepping))
#elif __has_attribute(always_inline) && __has_attribute(nodebug)
#define SWIFT_INLINE_THUNK_ATTRIBUTES \
__attribute__((always_inline)) __attribute__((nodebug))
#else
#define SWIFT_INLINE_THUNK_ATTRIBUTES
#endif

#if defined(DEBUG) && __has_attribute(used)
// Additional 'used' attribute is used in debug mode to make inline thunks
// accessible to LLDB.
#define SWIFT_INLINE_THUNK_USED_ATTRIBUTE __attribute__((used))
#else
#define SWIFT_INLINE_THUNK_USED_ATTRIBUTE
#endif
#else
#define SWIFT_INLINE_THUNK_ATTRIBUTES
#define SWIFT_INLINE_THUNK_USED_ATTRIBUTE
#endif

/// The `SWIFT_INLINE_THUNK` macro is applied on the inline function thunks in
/// the header that represents a C/C++ Swift module interface generated by the
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