Update to LLVM 20.1.8.

sunfishcode · sunfishcode · commit 015f5fdc433a · 2025-07-11T14:33:15.000-07:00
Update from LLVM 20.1.1 to 20.1.8. This release contains various bug fixes and notably for wasi-sdk includes llvm/llvm-project#146574, which fixes inline asm vector operands.
diff --git a/src/llvm-project b/src/llvm-project
@@ -1 +1 @@
-Subproject commit 424c2d9b7e4de40d0804dd374721e6411c27d1d1
+Subproject commit 87f0227cb60147a26a1eeb4fb06e3b505e9c7261
