WIP

serge-sans-paille · serge-sans-paille · commit 2f97bd04d497 · 2025-07-28T11:55:29.000+02:00
diff --git a/include/xsimd/arch/xsimd_altivec.hpp b/include/xsimd/arch/xsimd_altivec.hpp
@@ -15,6 +15,7 @@
 #include <complex>
 #include <limits>
 #include <type_traits>
+#include <endian.h>
 
 #include "../types/xsimd_altivec_register.hpp"
 
@@ -864,7 +865,11 @@ namespace xsimd
             }
             else
             {
+#if BYTE_ORDER == LITTLE_ENDIAN
                 auto slider = vec_splats((uint8_t)(8 * N));
+#else
+                auto slider = vec_splats((uint8_t)(8 * (16 - N)));
+#endif
                 return (typename batch<T, A>::register_type)vec_slo(x.data, slider);
             }
         }
@@ -879,7 +884,11 @@ namespace xsimd
             }
             else
             {
+#if BYTE_ORDER == LITTLE_ENDIAN
                 auto slider = vec_splats((uint8_t)(8 * N));
+#else
+                auto slider = vec_splats((uint8_t)(8 * (16 - N)));
+#endif
                 return (typename batch<T, A>::register_type)vec_sro((__vector unsigned char)x.data, slider);
             }
         }

Original file line number	Diff line number	Diff line change
`@@ -15,6 +15,7 @@`
`15`	`15`	`#include <complex>`
`16`	`16`	`#include <limits>`
`17`	`17`	`#include <type_traits>`
	`18`	`+#include <endian.h>`
`18`	`19`
`19`	`20`	`#include "../types/xsimd_altivec_register.hpp"`
`20`	`21`
`@@ -864,7 +865,11 @@ namespace xsimd`
`864`	`865`	`}`
`865`	`866`	`else`
`866`	`867`	`{`
	`868`	`+#if BYTE_ORDER == LITTLE_ENDIAN`
`867`	`869`	`auto slider = vec_splats((uint8_t)(8 * N));`
	`870`	`+#else`
	`871`	`+ auto slider = vec_splats((uint8_t)(8 * (16 - N)));`
	`872`	`+#endif`
`868`	`873`	`return (typename batch<T, A>::register_type)vec_slo(x.data, slider);`
`869`	`874`	`}`
`870`	`875`	`}`
`@@ -879,7 +884,11 @@ namespace xsimd`
`879`	`884`	`}`
`880`	`885`	`else`
`881`	`886`	`{`
	`887`	`+#if BYTE_ORDER == LITTLE_ENDIAN`
`882`	`888`	`auto slider = vec_splats((uint8_t)(8 * N));`
	`889`	`+#else`
	`890`	`+ auto slider = vec_splats((uint8_t)(8 * (16 - N)));`
	`891`	`+#endif`
`883`	`892`	`return (typename batch<T, A>::register_type)vec_sro((__vector unsigned char)x.data, slider);`
`884`	`893`	`}`
`885`	`894`	`}`