Rollup merge of #80796 - cuviper:llvm-11.0.1, r=nikic

Dylan-DPC · web-flow · commit 330e196c492e · 2021-01-13T03:20:19.000+01:00
Update to LLVM 11.0.1 This updates to a new LLVM branch, rebased on the upstream `llvmorg-11.0.1`. All our patches applied cleanly except the fortanix unwind changes, which just needed a small adjustment in cmake files. r? `@nikic` Fixes #73722
diff --git a/.gitmodules b/.gitmodules
@@ -37,7 +37,7 @@
 [submodule "src/llvm-project"]
 	path = src/llvm-project
 	url = https://github.com/rust-lang/llvm-project.git
-	branch = rustc/11.0-2020-10-12
+	branch = rustc/11.0-2021-01-05
 [submodule "src/doc/embedded-book"]
 	path = src/doc/embedded-book
 	url = https://github.com/rust-embedded/book.git
diff --git a/src/llvm-project b/src/llvm-project
@@ -1 +1 @@
-Subproject commit fb115ee43b77601b237717c21ab0a8f5b5b9d50a
+Subproject commit f9a8d70b6e0365ac2172ca6b7f1de0341297458d
diff --git a/src/test/ui/extern/extern-compare-with-return-type.rs b/src/test/ui/extern/extern-compare-with-return-type.rs
@@ -2,8 +2,9 @@
 // Tests that we can compare various kinds of extern fn signatures.
 #![allow(non_camel_case_types)]
 
-extern fn voidret1() {}
-extern fn voidret2() {}
+// `dbg!()` differentiates these functions to ensure they won't be merged.
+extern fn voidret1() { dbg!() }
+extern fn voidret2() { dbg!() }
 
 extern fn uintret() -> usize { 22 }
 
