add test case with multiple function passes

Author: slackito

llvm/include/llvm/Transforms/Vectorize/SandboxVectorizer/Passes/RegionsFromMetadata.h

@@ -27,6 +27,10 @@ class RegionsFromMetadata final : public FunctionPass {
 public:
   RegionsFromMetadata(StringRef Pipeline);
   bool runOnFunction(Function &F) final;
+  void printPipeline(raw_ostream &OS) const final {
+    OS << getName() << "\n";
+    RPM.printPipeline(OS);
+  }
 };
 
 } // namespace llvm::sandboxir

llvm/test/Transforms/SandboxVectorizer/user_pass_pipeline.ll

@@ -1,14 +1,28 @@
-; RUN: opt -passes=sandbox-vectorizer -sbvec-print-pass-pipeline -sbvec-passes="bottom-up-vec<null,null>" %s -disable-output | FileCheck %s
+; RUN: opt -passes=sandbox-vectorizer -sbvec-print-pass-pipeline \
+; RUN:     -disable-output -sbvec-passes="bottom-up-vec<null,null>" %s \
+; RUN:     | FileCheck %s
+;
+; RUN: opt -passes=sandbox-vectorizer -sbvec-print-pass-pipeline \
+; RUN:     -disable-output -sbvec-passes="bottom-up-vec<>,regions-from-metadata<>" %s \
+; RUN:     | FileCheck --check-prefix CHECK-MULTIPLE-FUNCTION-PASSES %s
 
 ; !!!WARNING!!! This won't get updated by update_test_checks.py !
 
 ; This checks the user defined pass pipeline.
 define void @pipeline() {
+  ret void
+}
+
 ; CHECK: fpm
 ; CHECK: bottom-up-vec
 ; CHECK: rpm
 ; CHECK: null
 ; CHECK: null
 ; CHECK-EMPTY:
-  ret void
-}
+
+; CHECK-MULTIPLE-FUNCTION-PASSES: fpm
+; CHECK-MULTIPLE-FUNCTION-PASSES: bottom-up-vec
+; CHECK-MULTIPLE-FUNCTION-PASSES: rpm
+; CHECK-MULTIPLE-FUNCTION-PASSES: regions-from-metadata
+; CHECK-MULTIPLE-FUNCTION-PASSES: rpm
+; CHECK-MULTIPLE-FUNCTION-PASSES-EMPTY: