From 2cfafd51337dcebee06341127e8a26d9b70fb7cb Mon Sep 17 00:00:00 2001
From: sharkautarch <128002472+sharkautarch@users.noreply.github.com>
Date: Thu, 26 Dec 2024 10:27:32 -0500
Subject: [PATCH] allow simd constexpr vec to work on arches such as riscv

glm only utilizes simd intrinsics for aarch64 and x86_64, but other platforms will now benefit from the arch-agnostic simd constructors and arithmetic operators used in the c++20 vec implementation
---
 glm/detail/qualifier.hpp          | 12 ++++++++++--
 glm/detail/setup.hpp              |  2 +-
 glm/detail/simd_constexpr/vec.hpp |  1 +
 3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/glm/detail/qualifier.hpp b/glm/detail/qualifier.hpp
index 05492c663..07d7635ae 100644
--- a/glm/detail/qualifier.hpp
+++ b/glm/detail/qualifier.hpp
@@ -107,7 +107,7 @@ namespace detail
 		};
 #	endif
 
-#if (defined(__clang__) || defined(__GNUC__)) && (GLM_LANG_CXX20_FLAG & GLM_LANG)
+#if ((defined(__clang__) || defined(__GNUC__)) && (GLM_LANG_CXX20_FLAG & GLM_LANG)) && GLM_SIMD_CONSTEXPR
 	template <typename T>
 	static constexpr size_t requiredAlignment = alignof(T);
 	
@@ -127,7 +127,7 @@ namespace detail
 	struct storage<2, T, true>
 	{
 		using VType = std::conditional_t< std::is_same_v<T, bool>, uint8_t, T>;
-		typedef VType type __attribute__((aligned(sizeof(VType)),vector_size(2*sizeof(VType))));
+		typedef VType type __attribute__((aligned(2*sizeof(VType)),vector_size(2*sizeof(VType))));
 	};
 	
 	template<typename T>
@@ -149,6 +149,14 @@ namespace detail
 		using VType = std::conditional_t< std::is_same_v<T, bool>, uint8_t, T>;
 		typedef VType type __attribute__((aligned( requiredAlignment<T> ), vector_size(4*sizeof(VType))));
 	};
+# if (!(GLM_ARCH & GLM_ARCH_SIMD_BIT))
+	template<typename T>
+	struct storage<4, T, true>
+	{
+		using VType = std::conditional_t< std::is_same_v<T, bool>, uint8_t, T>;
+		typedef VType type __attribute__((aligned(4*sizeof(VType)),vector_size(sizeof(VType))));
+	};
+# endif
 #endif
 
 #	if GLM_ARCH & GLM_ARCH_SSE2_BIT
diff --git a/glm/detail/setup.hpp b/glm/detail/setup.hpp
index 302225113..482c5a9f6 100644
--- a/glm/detail/setup.hpp
+++ b/glm/detail/setup.hpp
@@ -883,7 +883,7 @@ namespace detail
 #	define GLM_FORCE_ALIGNED_GENTYPES
 #endif
 
-#if GLM_HAS_ALIGNOF && (GLM_LANG & GLM_LANG_CXXMS_FLAG) && (defined(GLM_FORCE_ALIGNED_GENTYPES) || (GLM_CONFIG_SIMD == GLM_ENABLE))
+#if (GLM_HAS_ALIGNOF && (GLM_LANG & GLM_LANG_CXXMS_FLAG) && (defined(GLM_FORCE_ALIGNED_GENTYPES) || (GLM_CONFIG_SIMD == GLM_ENABLE))) || GLM_SIMD_CONSTEXPR
 #	define GLM_CONFIG_ALIGNED_GENTYPES GLM_ENABLE
 #else
 #	define GLM_CONFIG_ALIGNED_GENTYPES GLM_DISABLE
diff --git a/glm/detail/simd_constexpr/vec.hpp b/glm/detail/simd_constexpr/vec.hpp
index 19e2856a3..88689fad6 100644
--- a/glm/detail/simd_constexpr/vec.hpp
+++ b/glm/detail/simd_constexpr/vec.hpp
@@ -23,6 +23,7 @@
 #include <variant>
 #include <cstring>
 #include <ranges>
+#include <algorithm>
 namespace glm
 {
 #ifdef __clang__