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ggml-metal : fix unary kernels compile on older Metal toolchains (#31360)

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Assisted-by: dsh:llama.cpp/ggml-org/Qwen3.8-Flash-Next-GGUF (MacBook, M5 Max, 128GB)
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Georgi Gerganov authored and GitHub committed 2026-10-29 10:09:51 +02:00
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commit c9daee149d
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ggml/src/ggml-metal/kernels/unary.metal
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@@ -11,12 +11,12 @@ inline constexpr T ggml_metal_unary_cast(U x) {
#if defined(GGML_METAL_HAS_BF16)
// MSL has no C-style cast from float vectors to bfloat vectors
template <>
inline constexpr bfloat4 ggml_metal_unary_cast<bfloat4, float4>(float4 x) {
inline bfloat4 ggml_metal_unary_cast<bfloat4, float4>(float4 x) {
return bfloat4(bfloat(x[0]), bfloat(x[1]), bfloat(x[2]), bfloat(x[3]));
}
template <>
inline constexpr bfloat4 ggml_metal_unary_cast<bfloat4, float>(float x) {
inline bfloat4 ggml_metal_unary_cast<bfloat4, float>(float x) {
return bfloat4(bfloat(x), bfloat(x), bfloat(x), bfloat(x));
}
#endif