[Webkit-unassigned] [Bug 274086] REGRESSION(278410 at main): Fails to build with clang: error: _Float16 is not supported on this target

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=274086

--- Comment #5 from Michael Catanzaro <mcatanzaro at redhat.com> ---
I think it's broken only when using Clang rather than GCC. I've created a pull request at https://github.com/simd-everywhere/simde/pull/1182. There is a *lot* of upstream CI and I'm not expecting it all to pass; we'll see how it goes.

Berto, give this a try please:

diff --git a/Source/WTF/wtf/simde/arm/neon.h b/Source/WTF/wtf/simde/arm/neon.h
index 1ecd8cf565f1..b6d0fdf4f5d1 100644
--- a/Source/WTF/wtf/simde/arm/neon.h
+++ b/Source/WTF/wtf/simde/arm/neon.h
@@ -8785,8 +8785,7 @@ SIMDE_BEGIN_DECLS_
       defined(SIMDE_X86_AVX512FP16_NATIVE) || \
       (defined(SIMDE_ARCH_X86_SSE2) && HEDLEY_GCC_VERSION_CHECK(12,0,0)) || \
       (defined(SIMDE_ARCH_AARCH64) && HEDLEY_GCC_VERSION_CHECK(7,0,0) && !defined(__cplusplus)) || \
-      ((defined(SIMDE_ARCH_X86) || defined(SIMDE_ARCH_AMD64)) && SIMDE_DETECT_CLANG_VERSION_CHECK(15,0,0)) || \
-      (!(defined(SIMDE_ARCH_X86) || defined(SIMDE_ARCH_AMD64)) && SIMDE_DETECT_CLANG_VERSION_CHECK(6,0,0))) || \
+      ((defined(SIMDE_ARCH_X86_SSE2) || defined(SIMDE_ARCH_AMD64)) && SIMDE_DETECT_CLANG_VERSION_CHECK(15,0,0))) || \
       defined(SIMDE_ARCH_RISCV_ZVFH)
     /* We haven't found a better way to detect this.  It seems like defining
     * __STDC_WANT_IEC_60559_TYPES_EXT__, then including float.h, then

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