Imported Upstream version 5.18.0.179

Former-commit-id: 67aa10e65b237e1c4537630979ee99ebe1374215

external/llvm/test/BugPoint/remove_arguments_test.ll

@@ -0,0 +1,18 @@
+; RUN: bugpoint -load %llvmshlibdir/BugpointPasses%shlibext %s -output-prefix %t -bugpoint-crashcalls -silence-passes
+; RUN: llvm-dis %t-reduced-simplified.bc -o - | FileCheck %s
+; REQUIRES: loadable_module
+
+; Test to make sure that arguments are removed from the function if they are
+; unnecessary. And clean up any types that frees up too.
+
+; CHECK: ModuleID
+; CHECK-NOT: struct.anon
+%struct.anon = type { i32 }
+
+declare i32 @test2()
+
+; CHECK: define void @test() {
+define i32 @test(i32 %A, %struct.anon* %B, float %C) {
+	call i32 @test2()
+	ret i32 %1
+}