Rollup merge of rust-lang#77441 - couchand:2020-10/fix-75504, r=jonas-schievink

jonas-schievink · web-flow · commit edae96504841 · 2020-10-02T20:27:13.000+02:00
Fix AVR stack corruption bug Updates the Rust LLVM fork to pull in a fix for a stack corruption bug in AVR platform interrupt code lowering. Fixes rust-lang#75504 ---- It looks like this is also pulling in a register selection fix by @Amanieu and @tambry that hasn't merged yet; I don't see an open PR for that update.
diff --git a/src/llvm-project b/src/llvm-project
@@ -1 +1 @@
-Subproject commit 2c56ba7db75b536b0432228b4760ed79174eca30
+Subproject commit e8b556b6a8836147429abe391d6ed18806867b45
