fix: restore LLVM version to 21.1.4+r1 and add Windows Debug build

Revert to 21.1.4+r1 for this PR (version upgrade should come via the
automated workflow). Add missing Windows Debug entry to build-llvm
matrix. Manifest now includes arch field for all entries.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: 16bit-ykiko

.github/workflows/build-llvm.yml

@@ -29,6 +29,9 @@ jobs:
       matrix:
         include:
           # ── Native builds ──────────────────────────────────────────────
+          - os: windows-2025
+            llvm_mode: Debug
+            lto: OFF
           - os: windows-2025
             llvm_mode: RelWithDebInfo
             lto: OFF

cmake/package.cmake

@@ -1,7 +1,7 @@
 include_guard()
 
 include(${CMAKE_CURRENT_LIST_DIR}/llvm.cmake)
-setup_llvm("21.1.8")
+setup_llvm("21.1.4+r1")
 
 # install dependencies
 include(FetchContent)

config/llvm-manifest.json

@@ -1,138 +1,88 @@
 [
   {
-    "version": "21.1.8",
-    "filename": "aarch64-linux-gnu-releasedbg-lto.tar.xz",
-    "sha256": "41519a1e238afa67eb7bf75181265c816bbd51c5bd9b8bbd88ae889403efd128",
-    "lto": true,
-    "asan": false,
-    "platform": "linux",
-    "build_type": "RelWithDebInfo",
-    "arch": "arm64"
-  },
-  {
-    "version": "21.1.8",
-    "filename": "aarch64-linux-gnu-releasedbg.tar.xz",
-    "sha256": "dd22285b87570b8e83bb5119d319827b51ef82aab166f348aacc7e25c4479889",
-    "lto": false,
-    "asan": false,
-    "platform": "linux",
-    "build_type": "RelWithDebInfo",
-    "arch": "arm64"
-  },
-  {
-    "version": "21.1.8",
-    "filename": "aarch64-windows-msvc-releasedbg-lto.tar.xz",
-    "sha256": "1cf598277354efdd839ee6cd826824ef2afb26e334fb32bbc8e48c49c6acb742",
-    "lto": true,
-    "asan": false,
-    "platform": "windows",
-    "build_type": "RelWithDebInfo",
-    "arch": "arm64"
-  },
-  {
-    "version": "21.1.8",
-    "filename": "aarch64-windows-msvc-releasedbg.tar.xz",
-    "sha256": "8f91b0a2a2895654feaebb7c9b24a6624662552ea51c6bb5eeb658dbaa0ff5a1",
-    "lto": false,
-    "asan": false,
-    "platform": "windows",
-    "build_type": "RelWithDebInfo",
-    "arch": "arm64"
-  },
-  {
-    "version": "21.1.8",
+    "version": "21.1.4+r1",
     "filename": "arm64-macos-clang-debug-asan.tar.xz",
-    "sha256": "c6b70f141f0fc21eaf20ccbeb5ae101c08f8c19749e3d11e239af80d2c9e83ff",
+    "sha256": "7da4b7d63edefecaf11773e7e701c575140d1a07329bbbb038673b6ee4516ff5",
     "lto": false,
     "asan": true,
     "platform": "macosx",
     "build_type": "Debug",
     "arch": "arm64"
   },
   {
-    "version": "21.1.8",
+    "version": "21.1.4+r1",
     "filename": "arm64-macos-clang-releasedbg-lto.tar.xz",
-    "sha256": "48cab8a3842dde154f271ad4cd782b02cda237cc84b87b261395eea810d6dbde",
+    "sha256": "300455b169448f9f01ae95e3bc269f489558a4ca3955e3032171cc75feca0e30",
     "lto": true,
     "asan": false,
     "platform": "macosx",
     "build_type": "RelWithDebInfo",
     "arch": "arm64"
   },
   {
-    "version": "21.1.8",
+    "version": "21.1.4+r1",
     "filename": "arm64-macos-clang-releasedbg.tar.xz",
-    "sha256": "1c640714dc7d4ef8a34d6786d50d3149d4458802af32ccbcf64ec1ea53e83ed0",
+    "sha256": "9abfc6cd65b957d734ffb97610a634fb4a66d3fbe0fcfb5a1c9124ef693c1495",
     "lto": false,
     "asan": false,
     "platform": "macosx",
     "build_type": "RelWithDebInfo",
     "arch": "arm64"
   },
   {
-    "version": "21.1.8",
+    "version": "21.1.4+r1",
     "filename": "x64-linux-gnu-debug-asan.tar.xz",
-    "sha256": "64ebfc3ecf4117b6fdd467d5f9bcd5a2030bb408c70415ed40bf99f35311a6b0",
+    "sha256": "c1ad3ec476911596a842ac67dd9c9c9475ce9f0a77b81101d3c801840292e7bc",
     "lto": false,
     "asan": true,
     "platform": "linux",
     "build_type": "Debug",
     "arch": "x64"
   },
   {
-    "version": "21.1.8",
+    "version": "21.1.4+r1",
     "filename": "x64-linux-gnu-releasedbg-lto.tar.xz",
-    "sha256": "af8f97fbb57999aedd37a5e7c20d89499bf6518c6a0b5e83e18e6677a075fe71",
+    "sha256": "8a869c2184d139dbba704e2d712e7a68336458ad2d70622b3eb906c3e3511e54",
     "lto": true,
     "asan": false,
     "platform": "linux",
     "build_type": "RelWithDebInfo",
     "arch": "x64"
   },
   {
-    "version": "21.1.8",
+    "version": "21.1.4+r1",
     "filename": "x64-linux-gnu-releasedbg.tar.xz",
-    "sha256": "cdcd5312c6eba9295a05a68cd09559c4616ae0456550f7a64ed8fa15d283285b",
+    "sha256": "552bab86f715d4f2c027f07eaaf5b3d6b8e430af0b74b470142f3f00da4feec6",
     "lto": false,
     "asan": false,
     "platform": "linux",
     "build_type": "RelWithDebInfo",
     "arch": "x64"
   },
   {
-    "version": "21.1.8",
-    "filename": "x64-macos-clang-releasedbg-lto.tar.xz",
-    "sha256": "543db4d7fcd81d127c8f9ad33e359ecba442549da6d63d80e564710049ae2f08",
-    "lto": true,
-    "asan": false,
-    "platform": "macosx",
-    "build_type": "RelWithDebInfo",
-    "arch": "x64"
-  },
-  {
-    "version": "21.1.8",
-    "filename": "x64-macos-clang-releasedbg.tar.xz",
-    "sha256": "2193ade0b1e123f835b782488f31262a2f9ef541cf0f0f0125b190e08b721a29",
+    "version": "21.1.4+r1",
+    "filename": "x64-windows-msvc-debug-asan.tar.xz",
+    "sha256": "093667a493d336c22ff3c604c5f1fea2a7d2c927c1179cec44e9a03726906ac1",
     "lto": false,
-    "asan": false,
-    "platform": "macosx",
-    "build_type": "RelWithDebInfo",
+    "asan": true,
+    "platform": "windows",
+    "build_type": "Debug",
     "arch": "x64"
   },
   {
-    "version": "21.1.8",
+    "version": "21.1.4+r1",
     "filename": "x64-windows-msvc-releasedbg-lto.tar.xz",
-    "sha256": "bf131c12c1ae87ffe3b7f87c424d7c2e628e63f591cb3505e901cf4c5ba0474b",
+    "sha256": "010539e85621dc3c6ecf359d899feb4075aeca5d0bba6625cdbec0e570e79129",
     "lto": true,
     "asan": false,
     "platform": "windows",
     "build_type": "RelWithDebInfo",
     "arch": "x64"
   },
   {
-    "version": "21.1.8",
+    "version": "21.1.4+r1",
     "filename": "x64-windows-msvc-releasedbg.tar.xz",
-    "sha256": "6dddec41a7960c9409516a46ca9d48d30f85adf948362e61ff37dd55ecf17568",
+    "sha256": "f473c09fbea10053fac00be409d75dc228d4a38bcbc5e4aeb58b56a4b0dde78e",
     "lto": false,
     "asan": false,
     "platform": "windows",