File 1605.patch of Package OpenShadingLanguage

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File 1605.patch of Package OpenShadingLanguage (Revision 85e74a42fbd2ae4a4529c837a84e878d)

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From 23ceda5ba82b589ba5f750f8edeb2894b7a6b1e9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dan=20Hor=C3=A1k?= <dan@danny.cz>
Date: Mon, 10 Oct 2022 08:40:18 +0000
Subject: [PATCH] include the immintrin.h header only when needed
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The immintrin.h header is required for the implementation of the
popcount and coutr_zero function only when the Intel compiler is used.
Move the inclusion accordingly. The current state breaks build on
platforms that don't provide the header, but provide the alternative
means (gcc/clang built-ins, etc).

Signed-off-by: Dan Horák <dan@danny.cz>
---
 src/include/OSL/mask.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/include/OSL/mask.h b/src/include/OSL/mask.h
index 24197afb6..b9275f65d 100644
--- a/src/include/OSL/mask.h
+++ b/src/include/OSL/mask.h
@@ -4,7 +4,6 @@
 
 #pragma once
 
-#include <immintrin.h>
 #include <type_traits>
 
 #include <OSL/oslconfig.h>
@@ -23,6 +22,8 @@ using std::countr_zero;
 
 #elif OSL_INTEL_CLASSIC_COMPILER_VERSION
 
+#include <immintrin.h>
+
 OSL_FORCEINLINE int popcount(uint32_t x) noexcept { return _mm_popcnt_u32(x);}
 OSL_FORCEINLINE int popcount(uint64_t x) noexcept { return _mm_popcnt_u64(x); }
 OSL_FORCEINLINE int countr_zero(uint32_t x) noexcept { return _bit_scan_forward(x); }

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File 1605.patch of Package OpenShadingLanguage (Revision 85e74a42fbd2ae4a4529c837a84e878d)

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