Imported Upstream version 5.18.0.234

Former-commit-id: 8071ec1a8c5eaa9be24b41745add19297608001f

external/llvm/test/Other/opt-twice.ll

@@ -1,14 +0,0 @@
-; The pass here doesn't matter (we use deadargelim), but test
-; that the -run-twice options exists, generates output, and
-; doesn't crash
-; RUN: opt -run-twice -deadargelim -S < %s | FileCheck %s
-
-; CHECK: define internal void @test
-define internal {} @test() {
-  ret {} undef
-}
-
-define void @caller() {
-  call {} @test()
-  ret void
-}