Add sdl3_cpuinfo.odin

vendor/sdl3/sdl3_cpuinfo.odin

@@ -0,0 +1,27 @@
+package sdl3
+
+import "core:c"
+
+CACHELINE_SIZE :: 128
+
+@(default_calling_convention="c", link_prefix="SDL_")
+foreign lib {
+	GetNumLogicalCPUCores :: proc() -> c.int ---
+	GetCPUCacheLineSize   :: proc() -> c.int ---
+	HasAltiVec            :: proc() -> bool ---
+	HasMMX                :: proc() -> bool ---
+	HasSSE                :: proc() -> bool ---
+	HasSSE2               :: proc() -> bool ---
+	HasSSE3               :: proc() -> bool ---
+	HasSSE41              :: proc() -> bool ---
+	HasSSE42              :: proc() -> bool ---
+	HasAVX                :: proc() -> bool ---
+	HasAVX2               :: proc() -> bool ---
+	HasAVX512F            :: proc() -> bool ---
+	HasARMSIMD            :: proc() -> bool ---
+	HasNEON               :: proc() -> bool ---
+	HasLSX                :: proc() -> bool ---
+	HasLASX               :: proc() -> bool ---
+	GetSystemRAM          :: proc() -> c.int ---
+	GetSIMDAlignment      :: proc() -> uint ---
+}