Auto merge of #147518 - dianqk:update-llvm, r=<try>

rust-bors[bot] · web-flow · commit d6659ceb856d · 2025-10-09T10:28:08.000Z
Update LLVM to 21.1.3

try-job: x86_64-gnu-distcheck
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -246,6 +246,8 @@ jobs:
         run: src/ci/scripts/create-doc-artifacts.sh
 
       - name: print disk usage
+        # We also want to know the disk usage when the job fails.
+        if: always()
         run: |
           echo "disk usage:"
           df -h
diff --git a/src/llvm-project b/src/llvm-project
@@ -1 +1 @@
-Subproject commit 8c30b9c5098bdff1d3d9a2d460ee091cd1171e60
+Subproject commit 4f74b76fb69688474e073fb26b316d9ea571388f
