Add support for powerpc64le systems

This requires POWER ISA 3.0 or higher
Older ISA variants lack current deployment and required features
Big endian systems are NOT supported

Signed-off-by: Timothy Pearson <tpearson@raptorcs.com>

Author: tpearson-rcs

Inc/DirectXMath.h

@@ -82,7 +82,7 @@
 #endif
 
 #if !defined(_XM_ARM_NEON_INTRINSICS_) && !defined(_XM_SSE_INTRINSICS_) && !defined(_XM_NO_INTRINSICS_)
-#if (defined(_M_IX86) || defined(_M_X64) || __i386__ || __x86_64__) && !defined(_M_HYBRID_X86_ARM64) && !defined(_M_ARM64EC)
+#if (defined(_M_IX86) || defined(_M_X64) || __i386__ || __x86_64__ || __powerpc64__) && !defined(_M_HYBRID_X86_ARM64) && !defined(_M_ARM64EC)
 #define _XM_SSE_INTRINSICS_
 #elif defined(_M_ARM) || defined(_M_ARM64) || defined(_M_HYBRID_X86_ARM64) || defined(_M_ARM64EC) || __arm__ || __aarch64__
 #define _XM_ARM_NEON_INTRINSICS_
@@ -213,7 +213,7 @@
 #define XM_PERMUTE_PS( v, c ) _mm_shuffle_ps((v), (v), c )
 #endif
 
-#if defined(__GNUC__) && !defined(__clang__) && (__GNUC__ < 11)
+#if (defined(__GNUC__) && !defined(__clang__) && (__GNUC__ < 11)) || defined(__powerpc64__)
 #define XM_LOADU_SI16( p ) _mm_cvtsi32_si128(*reinterpret_cast<unsigned short const*>(p))
 #else
 #define XM_LOADU_SI16( p ) _mm_loadu_si16(p)

Inc/DirectXMathMisc.inl

@@ -1971,7 +1971,7 @@ inline XMVECTOR XM_CALLCONV XMColorSRGBToRGB(FXMVECTOR srgb) noexcept
 
 inline bool XMVerifyCPUSupport() noexcept
 {
-#if defined(_XM_SSE_INTRINSICS_) && !defined(_XM_NO_INTRINSICS_)
+#if defined(_XM_SSE_INTRINSICS_) && !defined(__powerpc64__) && !defined(_XM_NO_INTRINSICS_)
     int CPUInfo[4] = { -1 };
 #if (defined(__clang__) || defined(__GNUC__)) && defined(__cpuid)
     __cpuid(0, CPUInfo[0], CPUInfo[1], CPUInfo[2], CPUInfo[3]);