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* [gcc r12-9638] libstdc++: Fix simd build failure on clang
@ 2023-05-23 10:02 Matthias Kretz
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From: Matthias Kretz @ 2023-05-23 10:02 UTC (permalink / raw)
To: gcc-cvs, libstdc++-cvs
https://gcc.gnu.org/g:41f75cfea48d97ea5cadd220d932163a1e17cf9a
commit r12-9638-g41f75cfea48d97ea5cadd220d932163a1e17cf9a
Author: Matthias Kretz <m.kretz@gsi.de>
Date: Mon Feb 20 11:13:44 2023 +0100
libstdc++: Fix simd build failure on clang
Clang does not support __attribute__ on lambdas. Therefore, only set
_GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA if __clang__ is not defined.
Signed-off-by: Matthias Kretz <m.kretz@gsi.de>
libstdc++-v3/ChangeLog:
PR libstdc++/108030
* include/experimental/bits/simd_detail.h
(_GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA): Define as empty for
__clang__.
(cherry picked from commit 92c47b15d5af3e7f93d11ad69a45b6d1cb8661c5)
Diff:
---
libstdc++-v3/include/experimental/bits/simd_detail.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libstdc++-v3/include/experimental/bits/simd_detail.h b/libstdc++-v3/include/experimental/bits/simd_detail.h
index bd4e380df65..fee7f871176 100644
--- a/libstdc++-v3/include/experimental/bits/simd_detail.h
+++ b/libstdc++-v3/include/experimental/bits/simd_detail.h
@@ -254,15 +254,16 @@
#ifdef __clang__
#define _GLIBCXX_SIMD_NORMAL_MATH
+#define _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA
#else
#define _GLIBCXX_SIMD_NORMAL_MATH \
[[__gnu__::__optimize__("finite-math-only,no-signed-zeros")]]
+#define _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA __attribute__((__always_inline__))
#endif
#define _GLIBCXX_SIMD_NEVER_INLINE [[__gnu__::__noinline__]]
#define _GLIBCXX_SIMD_INTRINSIC \
[[__gnu__::__always_inline__, __gnu__::__artificial__]] inline
#define _GLIBCXX_SIMD_ALWAYS_INLINE [[__gnu__::__always_inline__]] inline
-#define _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA __attribute__((__always_inline__))
#define _GLIBCXX_SIMD_IS_UNLIKELY(__x) __builtin_expect(__x, 0)
#define _GLIBCXX_SIMD_IS_LIKELY(__x) __builtin_expect(__x, 1)
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