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-rw-r--r--thirdparty/embree/kernels/common/isa.h246
1 files changed, 246 insertions, 0 deletions
diff --git a/thirdparty/embree/kernels/common/isa.h b/thirdparty/embree/kernels/common/isa.h
new file mode 100644
index 0000000000..ae6556336c
--- /dev/null
+++ b/thirdparty/embree/kernels/common/isa.h
@@ -0,0 +1,246 @@
+// Copyright 2009-2021 Intel Corporation
+// SPDX-License-Identifier: Apache-2.0
+
+#pragma once
+
+#include "../../common/sys/platform.h"
+#include "../../common/sys/sysinfo.h"
+
+namespace embree
+{
+#define DEFINE_SYMBOL2(type,name) \
+ typedef type (*name##Func)(); \
+ name##Func name;
+
+#define DECLARE_SYMBOL2(type,name) \
+ namespace sse2 { extern type name(); } \
+ namespace sse42 { extern type name(); } \
+ namespace avx { extern type name(); } \
+ namespace avx2 { extern type name(); } \
+ namespace avx512 { extern type name(); } \
+ void name##_error2() { throw_RTCError(RTC_ERROR_UNKNOWN,"internal error in ISA selection for " TOSTRING(name)); } \
+ type name##_error() { return type(name##_error2); } \
+ type name##_zero() { return type(nullptr); }
+
+#define DECLARE_ISA_FUNCTION(type,symbol,args) \
+ namespace sse2 { extern type symbol(args); } \
+ namespace sse42 { extern type symbol(args); } \
+ namespace avx { extern type symbol(args); } \
+ namespace avx2 { extern type symbol(args); } \
+ namespace avx512 { extern type symbol(args); } \
+ inline type symbol##_error(args) { throw_RTCError(RTC_ERROR_UNSUPPORTED_CPU,"function " TOSTRING(symbol) " not supported by your CPU"); } \
+ typedef type (*symbol##Ty)(args); \
+
+#define DEFINE_ISA_FUNCTION(type,symbol,args) \
+ typedef type (*symbol##Func)(args); \
+ symbol##Func symbol;
+
+#define ZERO_SYMBOL(features,intersector) \
+ intersector = intersector##_zero;
+
+#define INIT_SYMBOL(features,intersector) \
+ intersector = decltype(intersector)(intersector##_error);
+
+#define SELECT_SYMBOL_DEFAULT(features,intersector) \
+ intersector = isa::intersector;
+
+#if defined(__SSE__)
+#if !defined(EMBREE_TARGET_SIMD4)
+#define EMBREE_TARGET_SIMD4
+#endif
+#endif
+
+#if defined(EMBREE_TARGET_SSE42)
+#define SELECT_SYMBOL_SSE42(features,intersector) \
+ if ((features & SSE42) == SSE42) intersector = sse42::intersector;
+#else
+#define SELECT_SYMBOL_SSE42(features,intersector)
+#endif
+
+#if defined(EMBREE_TARGET_AVX) || defined(__AVX__)
+#if !defined(EMBREE_TARGET_SIMD8)
+#define EMBREE_TARGET_SIMD8
+#endif
+#if defined(__AVX__) // if default ISA is >= AVX we treat AVX target as default target
+#define SELECT_SYMBOL_AVX(features,intersector) \
+ if ((features & ISA) == ISA) intersector = isa::intersector;
+#else
+#define SELECT_SYMBOL_AVX(features,intersector) \
+ if ((features & AVX) == AVX) intersector = avx::intersector;
+#endif
+#else
+#define SELECT_SYMBOL_AVX(features,intersector)
+#endif
+
+#if defined(EMBREE_TARGET_AVX2)
+#if !defined(EMBREE_TARGET_SIMD8)
+#define EMBREE_TARGET_SIMD8
+#endif
+#define SELECT_SYMBOL_AVX2(features,intersector) \
+ if ((features & AVX2) == AVX2) intersector = avx2::intersector;
+#else
+#define SELECT_SYMBOL_AVX2(features,intersector)
+#endif
+
+#if defined(EMBREE_TARGET_AVX512)
+#if !defined(EMBREE_TARGET_SIMD16)
+#define EMBREE_TARGET_SIMD16
+#endif
+#define SELECT_SYMBOL_AVX512(features,intersector) \
+ if ((features & AVX512) == AVX512) intersector = avx512::intersector;
+#else
+#define SELECT_SYMBOL_AVX512(features,intersector)
+#endif
+
+#define SELECT_SYMBOL_DEFAULT_SSE42(features,intersector) \
+ SELECT_SYMBOL_DEFAULT(features,intersector); \
+ SELECT_SYMBOL_SSE42(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_SSE42_AVX(features,intersector) \
+ SELECT_SYMBOL_DEFAULT(features,intersector); \
+ SELECT_SYMBOL_SSE42(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_SSE42_AVX_AVX2(features,intersector) \
+ SELECT_SYMBOL_DEFAULT(features,intersector); \
+ SELECT_SYMBOL_SSE42(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX2(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_SSE42_AVX_AVX512(features,intersector) \
+ SELECT_SYMBOL_DEFAULT(features,intersector); \
+ SELECT_SYMBOL_SSE42(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX512(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_AVX_AVX2_AVX512(features,intersector) \
+ SELECT_SYMBOL_DEFAULT(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX2(features,intersector); \
+ SELECT_SYMBOL_AVX512(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_AVX_AVX2_AVX512(features,intersector) \
+ SELECT_SYMBOL_DEFAULT(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX2(features,intersector); \
+ SELECT_SYMBOL_AVX512(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_SSE42_AVX_AVX2_AVX512(features,intersector) \
+ SELECT_SYMBOL_DEFAULT(features,intersector); \
+ SELECT_SYMBOL_SSE42(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX2(features,intersector); \
+ SELECT_SYMBOL_AVX512(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_SSE42_AVX_AVX2_AVX512(features,intersector) \
+ SELECT_SYMBOL_DEFAULT(features,intersector); \
+ SELECT_SYMBOL_SSE42(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX2(features,intersector); \
+ SELECT_SYMBOL_AVX512(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_AVX(features,intersector) \
+ SELECT_SYMBOL_DEFAULT(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_AVX_AVX2(features,intersector) \
+ SELECT_SYMBOL_DEFAULT(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX2(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_AVX(features,intersector) \
+ SELECT_SYMBOL_DEFAULT(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_AVX_AVX512(features,intersector) \
+ SELECT_SYMBOL_DEFAULT(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX512(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_AVX_AVX512(features,intersector) \
+ SELECT_SYMBOL_DEFAULT(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX512(features,intersector);
+
+#define SELECT_SYMBOL_INIT_AVX(features,intersector) \
+ INIT_SYMBOL(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector);
+
+#define SELECT_SYMBOL_INIT_AVX_AVX2(features,intersector) \
+ INIT_SYMBOL(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX2(features,intersector);
+
+#define SELECT_SYMBOL_INIT_AVX_AVX2_AVX512(features,intersector) \
+ INIT_SYMBOL(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX2(features,intersector); \
+ SELECT_SYMBOL_AVX512(features,intersector);
+
+#define SELECT_SYMBOL_INIT_SSE42_AVX_AVX2(features,intersector) \
+ INIT_SYMBOL(features,intersector); \
+ SELECT_SYMBOL_SSE42(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX2(features,intersector);
+
+#define SELECT_SYMBOL_INIT_AVX(features,intersector) \
+ INIT_SYMBOL(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector);
+
+#define SELECT_SYMBOL_INIT_AVX_AVX512(features,intersector) \
+ INIT_SYMBOL(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX512(features,intersector);
+
+#define SELECT_SYMBOL_INIT_AVX_AVX2(features,intersector) \
+ INIT_SYMBOL(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX2(features,intersector);
+
+#define SELECT_SYMBOL_INIT_AVX_AVX2_AVX512(features,intersector) \
+ INIT_SYMBOL(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX2(features,intersector); \
+ SELECT_SYMBOL_AVX512(features,intersector);
+
+#define SELECT_SYMBOL_INIT_SSE42_AVX_AVX2_AVX512(features,intersector) \
+ INIT_SYMBOL(features,intersector); \
+ SELECT_SYMBOL_SSE42(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX2(features,intersector); \
+ SELECT_SYMBOL_AVX512(features,intersector);
+
+#define SELECT_SYMBOL_ZERO_SSE42_AVX_AVX2_AVX512(features,intersector) \
+ ZERO_SYMBOL(features,intersector); \
+ SELECT_SYMBOL_SSE42(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX2(features,intersector); \
+ SELECT_SYMBOL_AVX512(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_AVX_AVX2_AVX512(features,intersector) \
+ SELECT_SYMBOL_DEFAULT(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX2(features,intersector); \
+ SELECT_SYMBOL_AVX512(features,intersector);
+
+#define SELECT_SYMBOL_INIT_AVX512(features,intersector) \
+ INIT_SYMBOL(features,intersector); \
+ SELECT_SYMBOL_AVX512(features,intersector);
+
+#define SELECT_SYMBOL_SSE42_AVX_AVX2(features,intersector) \
+ SELECT_SYMBOL_SSE42(features,intersector); \
+ SELECT_SYMBOL_AVX(features,intersector); \
+ SELECT_SYMBOL_AVX2(features,intersector);
+
+ struct VerifyMultiTargetLinking {
+ static __noinline int getISA(int depth = 5) {
+ if (depth == 0) return ISA;
+ else return getISA(depth-1);
+ }
+ };
+ namespace sse2 { int getISA(); };
+ namespace sse42 { int getISA(); };
+ namespace avx { int getISA(); };
+ namespace avx2 { int getISA(); };
+ namespace avx512 { int getISA(); };
+}