Fix clang-cl type %x aliasing error

Author: solidpixel

.gitignore

@@ -1,4 +1,5 @@
 # Editor and engineering scratch files
+.cache
 .vs
 .vscode
 .DS_Store

Source/astcenc_vecmathlib_avx2_8.h

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: Apache-2.0
 // ----------------------------------------------------------------------------
-// Copyright 2019-2024 Arm Limited
+// Copyright 2019-2025 Arm Limited
 //
 // Licensed under the Apache License, Version 2.0 (the "License"); you may not
 // use this file except in compliance with the License. You may obtain a copy
@@ -1176,8 +1176,12 @@ ASTCENC_SIMD_INLINE void printx(vint8 a)
 {
 	alignas(32) int v[8];
 	storea(a, v);
+
+	unsigned int uv[8];
+	std::memcpy(uv, v, sizeof(int) * 8);
+
 	printf("v8_i32:\n  %08x %08x %08x %08x %08x %08x %08x %08x\n",
-	       v[0], v[1], v[2], v[3], v[4], v[5], v[6], v[7]);
+		uv[0], uv[1], uv[2], uv[3], uv[4], uv[5], uv[6], uv[7]);
 }
 
 /**

Source/astcenc_vecmathlib_common_4.h

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: Apache-2.0
 // ----------------------------------------------------------------------------
-// Copyright 2020-2024 Arm Limited
+// Copyright 2020-2025 Arm Limited
 //
 // Licensed under the Apache License, Version 2.0 (the "License"); you may not
 // use this file except in compliance with the License. You may obtain a copy
@@ -380,8 +380,12 @@ ASTCENC_SIMD_INLINE void printx(vint4 a)
 {
 	ASTCENC_ALIGNAS int v[4];
 	storea(a, v);
+
+	unsigned int uv[4];
+	std::memcpy(uv, v, sizeof(int) * 4);
+
 	printf("v4_i32:\n  %08x %08x %08x %08x\n",
-	       v[0], v[1], v[2], v[3]);
+		uv[0], uv[1], uv[2], uv[3]);
 }
 
 /**