Rollup merge of rust-lang#76806 - jethrogb:jb/update-llvm, r=cuviper

Dylan-DPC · web-flow · commit 0505c852c2b7 · 2020-09-20T01:41:37.000+02:00
Update LLVM This (partially?) addresses rust-lang#74632 r? @cuviper
diff --git a/src/llvm-project b/src/llvm-project
@@ -1 +1 @@
-Subproject commit 833dd1e3d4fd350c7c9f6fb2ce0c5f16af7a1e21
+Subproject commit a78defc24c73930246db65fcabbca86a3df684c4
