[clang-repl] Disable all tests on unsupported platforms

[junaire]

Summary

After https://reviews.llvm.org/D141215 we called Interpreter::ParseAndExecute in Interpreter::create so we need to disable all tests on platforms that don't have good JIT support.

This should fixes https://lab.llvm.org/buildbot/#/builders/38/builds/11955
Signed-off-by: Jun Zhang <[e-mail]>

[junaire]

.

[v.g.vassilev]

I would support this change but instead of asking the JIT we should just add -fsyntax-only to these invocations as they do not rely on the JIT at all.

clang/test/Interpreter/incremental-mode.cpp

3

This test does not run anything, so this should be supported. Perhaps we could add -fsyntax-only mode to the RUN lines above.

clang/unittests/Interpreter/IncrementalProcessingTest.cpp

74

Likewise, here -fsyntax-only mode should be enough since we do not execute anything.

[junaire]

This isn't an ideal solution after an off-list discussion.

clang/test/Interpreter/incremental-mode.cpp

 // RUN: clang-repl -Xcc -E
 // RUN: clang-repl -Xcc -emit-llvm 
+// UNSUPPORTED: system-aix
 // expected-no-diagnostics

clang/unittests/Interpreter/IncrementalProcessingTest.cpp

 #include "clang/AST/RecursiveASTVisitor.h"
 #include "clang/Basic/TargetInfo.h"
 #include "clang/CodeGen/ModuleBuilder.h"
 #include "clang/Frontend/CompilerInstance.h"
 #include "clang/Interpreter/Interpreter.h"
 #include "clang/Lex/Preprocessor.h"
 #include "clang/Parse/Parser.h"
 #include "clang/Sema/Sema.h"
+#include "llvm/ExecutionEngine/Orc/LLJIT.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Module.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/TargetParser/Host.h"
 #include "llvm/TargetParser/Triple.h"
 #include "gtest/gtest.h"
 
 #include <memory>
 
 using namespace llvm;
 using namespace clang;
 
+#if defined(_AIX)
+#define CLANG_INTERPRETER_NO_SUPPORT_EXEC
+#endif
+
 namespace {
 
+bool HostSupportsJit() {
+  auto J = llvm::orc::LLJITBuilder().create();
+  if (J)
+    return true;
+  LLVMConsumeError(llvm::wrap(J.takeError()));
+  return false;
+}
+
 // Incremental processing produces several modules, all using the same "main
 // file". Make sure CodeGen can cope with that, e.g. for static initializers.
 const char TestProgram1[] = "extern \"C\" int funcForProg1() { return 17; }\n"
                             "struct EmitCXXGlobalInitFunc1 {\n"
                             "   EmitCXXGlobalInitFunc1() {}\n"
                             "} test1;";
 
 const char TestProgram2[] = "extern \"C\" int funcForProg2() { return 42; }\n"
                             "struct EmitCXXGlobalInitFunc2 {\n"
                             "   EmitCXXGlobalInitFunc2() {}\n"
                             "} test2;";
 
 const Function *getGlobalInit(llvm::Module *M) {
   for (const auto &Func : *M)
     if (Func.hasName() && Func.getName().startswith("_GLOBAL__sub_I_"))
       return &Func;
 
   return nullptr;
 }
 
+#ifdef CLANG_INTERPRETER_NO_SUPPORT_EXEC
+TEST(IncrementalProcessing, DISABLED_EmitCXXGlobalInitFunc) {
+#else
 TEST(IncrementalProcessing, EmitCXXGlobalInitFunc) {
+#endif
+  // We cannot execute on the platform.
+  if (!HostSupportsJit())
+    return;
   std::vector<const char *> ClangArgv = {"-Xclang", "-emit-llvm-only"};
   auto CI = llvm::cantFail(IncrementalCompilerBuilder::create(ClangArgv));
   auto Interp = llvm::cantFail(Interpreter::create(std::move(CI)));
 
   std::array<clang::PartialTranslationUnit *, 2> PTUs;
 
   PTUs[0] = &llvm::cantFail(Interp->Parse(TestProgram1));
   ASSERT_TRUE(PTUs[0]->TheModule);
   ASSERT_TRUE(PTUs[0]->TheModule->getFunction("funcForProg1"));

clang/unittests/Interpreter/InterpreterTest.cpp

 #endif
 
 int Global = 42;
 // JIT reports symbol not found on Windows without the visibility attribute.
 REPL_EXTERNAL_VISIBILITY int getGlobal() { return Global; }
 REPL_EXTERNAL_VISIBILITY void setGlobal(int val) { Global = val; }
 
 namespace {
+
+bool HostSupportsJit() {
+  auto J = llvm::orc::LLJITBuilder().create();
+  if (J)
+    return true;
+  LLVMConsumeError(llvm::wrap(J.takeError()));
+  return false;
+}
+
 using Args = std::vector<const char *>;
 static std::unique_ptr<Interpreter>
 createInterpreter(const Args &ExtraArgs = {},
                   DiagnosticConsumer *Client = nullptr) {
   Args ClangArgs = {"-Xclang", "-emit-llvm-only"};
   ClangArgs.insert(ClangArgs.end(), ExtraArgs.begin(), ExtraArgs.end());
   auto CI = cantFail(clang::IncrementalCompilerBuilder::create(ClangArgs));
   if (Client)
     CI->getDiagnostics().setClient(Client, /*ShouldOwnClient=*/false);
   return cantFail(clang::Interpreter::create(std::move(CI)));
 }
 
 static size_t DeclsSize(TranslationUnitDecl *PTUDecl) {
   return std::distance(PTUDecl->decls().begin(), PTUDecl->decls().end());
 }
 
+#ifdef CLANG_INTERPRETER_NO_SUPPORT_EXEC
+TEST(InterpreterTest, DISABLED_Sanity) {
+#else
 TEST(InterpreterTest, Sanity) {
+#endif
+  // We cannot execute on the platform.
+  if (!HostSupportsJit())
+    return;
   std::unique_ptr<Interpreter> Interp = createInterpreter();
 
   using PTU = PartialTranslationUnit;
 
   PTU &R1(cantFail(Interp->Parse("void g(); void g() {}")));
   EXPECT_EQ(2U, DeclsSize(R1.TUPart));
 
   PTU &R2(cantFail(Interp->Parse("int i;")));
   EXPECT_EQ(1U, DeclsSize(R2.TUPart));
 }
 
 static std::string DeclToString(Decl *D) {
   return llvm::cast<NamedDecl>(D)->getQualifiedNameAsString();
 }
 
+#ifdef CLANG_INTERPRETER_NO_SUPPORT_EXEC
+TEST(InterpreterTest, DISABLED_IncrementalInputTopLevelDecls) {
+#else
 TEST(InterpreterTest, IncrementalInputTopLevelDecls) {
+#endif
+  // We cannot execute on the platform.
+  if (!HostSupportsJit())
+    return;
   std::unique_ptr<Interpreter> Interp = createInterpreter();
   auto R1 = Interp->Parse("int var1 = 42; int f() { return var1; }");
   // gtest doesn't expand into explicit bool conversions.
   EXPECT_TRUE(!!R1);
   auto R1DeclRange = R1->TUPart->decls();
   EXPECT_EQ(2U, DeclsSize(R1->TUPart));
   EXPECT_EQ("var1", DeclToString(*R1DeclRange.begin()));
   EXPECT_EQ("f", DeclToString(*(++R1DeclRange.begin())));
 
   auto R2 = Interp->Parse("int var2 = f();");
   EXPECT_TRUE(!!R2);
   auto R2DeclRange = R2->TUPart->decls();
   EXPECT_EQ(1U, DeclsSize(R2->TUPart));
   EXPECT_EQ("var2", DeclToString(*R2DeclRange.begin()));
 }
 
+#ifdef CLANG_INTERPRETER_NO_SUPPORT_EXEC
+TEST(InterpreterTest, DISABLED_Errors) {
+#else
 TEST(InterpreterTest, Errors) {
+#endif
+  // We cannot execute on the platform.
+  if (!HostSupportsJit())
+    return;
   Args ExtraArgs = {"-Xclang", "-diagnostic-log-file", "-Xclang", "-"};
 
   // Create the diagnostic engine with unowned consumer.
   std::string DiagnosticOutput;
   llvm::raw_string_ostream DiagnosticsOS(DiagnosticOutput);
   auto DiagPrinter = std::make_unique<TextDiagnosticPrinter>(
       DiagnosticsOS, new DiagnosticOptions());
 
   auto Interp = createInterpreter(ExtraArgs, DiagPrinter.get());
   auto Err = Interp->Parse("intentional_error v1 = 42; ").takeError();
   using ::testing::HasSubstr;
   EXPECT_THAT(DiagnosticsOS.str(),
               HasSubstr("error: unknown type name 'intentional_error'"));
   EXPECT_EQ("Parsing failed.", llvm::toString(std::move(Err)));
 
   auto RecoverErr = Interp->Parse("int var1 = 42;");
   EXPECT_TRUE(!!RecoverErr);
 }
 
 // Here we test whether the user can mix declarations and statements. The
 // interpreter should be smart enough to recognize the declarations from the
 // statements and wrap the latter into a declaration, producing valid code.
+#ifdef CLANG_INTERPRETER_NO_SUPPORT_EXEC
+TEST(InterpreterTest, DISABLED_DeclsAndStatements) {
+#else
 TEST(InterpreterTest, DeclsAndStatements) {
+#endif
+  // We cannot execute on the platform.
+  if (!HostSupportsJit())
+    return;
   Args ExtraArgs = {"-Xclang", "-diagnostic-log-file", "-Xclang", "-"};
 
   // Create the diagnostic engine with unowned consumer.
   std::string DiagnosticOutput;
   llvm::raw_string_ostream DiagnosticsOS(DiagnosticOutput);
   auto DiagPrinter = std::make_unique<TextDiagnosticPrinter>(
       DiagnosticsOS, new DiagnosticOptions());
 
   auto Interp = createInterpreter(ExtraArgs, DiagPrinter.get());
   auto R1 = Interp->Parse(
       "int var1 = 42; extern \"C\" int printf(const char*, ...);");
   // gtest doesn't expand into explicit bool conversions.
   EXPECT_TRUE(!!R1);
 
   auto *PTU1 = R1->TUPart;
   EXPECT_EQ(2U, DeclsSize(PTU1));
 
   auto R2 = Interp->Parse("var1++; printf(\"var1 value %d\\n\", var1);");
   EXPECT_TRUE(!!R2);
 }
 
+#ifdef CLANG_INTERPRETER_NO_SUPPORT_EXEC
+TEST(InterpreterTest, DISABLED_UndoCommand) {
+#else
 TEST(InterpreterTest, UndoCommand) {
+#endif
+  // We cannot execute on the platform.
+  if (!HostSupportsJit())
+    return;
   Args ExtraArgs = {"-Xclang", "-diagnostic-log-file", "-Xclang", "-"};
 
   // Create the diagnostic engine with unowned consumer.
   std::string DiagnosticOutput;
   llvm::raw_string_ostream DiagnosticsOS(DiagnosticOutput);
   auto DiagPrinter = std::make_unique<TextDiagnosticPrinter>(
       DiagnosticsOS, new DiagnosticOptions());
 
static std::string MangleName(NamedDecl *ND) {
   ASTContext &C = ND->getASTContext();
   std::unique_ptr<MangleContext> MangleC(C.createMangleContext());
   std::string mangledName;
   llvm::raw_string_ostream RawStr(mangledName);
   MangleC->mangleName(ND, RawStr);
   return RawStr.str();
 }
 
-static bool HostSupportsJit() {
-  auto J = llvm::orc::LLJITBuilder().create();
-  if (J)
-    return true;
-  LLVMConsumeError(llvm::wrap(J.takeError()));
-  return false;
-}
-
 struct LLVMInitRAII {
   LLVMInitRAII() {
     llvm::InitializeNativeTarget();
     llvm::InitializeNativeTargetAsmPrinter();
   }
   ~LLVMInitRAII() { llvm::llvm_shutdown(); }
 } LLVMInit;
 
 #ifdef CLANG_INTERPRETER_NO_SUPPORT_EXEC
 TEST(IncrementalProcessing, DISABLED_FindMangledNameSymbol) {
 #else
 TEST(IncrementalProcessing, FindMangledNameSymbol) {
 #endif
+  // We cannot execute on the platform.
+  if (!HostSupportsJit())
+    return;
 
   std::unique_ptr<Interpreter> Interp = createInterpreter();
 
   auto &PTU(cantFail(Interp->Parse("int f(const char*) {return 0;}")));
   EXPECT_EQ(1U, DeclsSize(PTU.TUPart));
   auto R1DeclRange = PTU.TUPart->decls();
 
-  // We cannot execute on the platform.
-  if (!HostSupportsJit()) {
-    return;
-  }
-
   NamedDecl *FD = cast<FunctionDecl>(*R1DeclRange.begin());
   // Lower the PTU
   if (llvm::Error Err = Interp->Execute(PTU)) {
     // We cannot execute on the platform.
     consumeError(std::move(Err));
     return;
   }
 
static NamedDecl *LookupSingleName(Interpreter &Interp, const char *Name) {
   return R.getFoundDecl();
 }
 
 #ifdef CLANG_INTERPRETER_NO_SUPPORT_EXEC
 TEST(IncrementalProcessing, DISABLED_InstantiateTemplate) {
 #else
 TEST(IncrementalProcessing, InstantiateTemplate) {
 #endif
+  // We cannot execute on the platform.
+  if (!HostSupportsJit())
+    return;
+
   // FIXME: We cannot yet handle delayed template parsing. If we run with
   // -fdelayed-template-parsing we try adding the newly created decl to the
   // active PTU which causes an assert.
   std::vector<const char *> Args = {"-fno-delayed-template-parsing"};
   std::unique_ptr<Interpreter> Interp = createInterpreter(Args);
 
   llvm::cantFail(Interp->Parse("extern \"C\" int printf(const char*,...);"
                                "class A {};"
                                "struct B {"
                                "  template<typename T>"
                                "  static int callme(T) { return 42; }"
                                "};"));
   auto &PTU = llvm::cantFail(Interp->Parse("auto _t = &B::callme<A*>;"));
   auto PTUDeclRange = PTU.TUPart->decls();
   EXPECT_EQ(1, std::distance(PTUDeclRange.begin(), PTUDeclRange.end()));
 
-  // We cannot execute on the platform.
-  if (!HostSupportsJit()) {
-    return;
-  }
-
   // Lower the PTU
   if (llvm::Error Err = Interp->Execute(PTU)) {
     // We cannot execute on the platform.
     consumeError(std::move(Err));
     return;
   }
 
   TypeDecl *TD = cast<TypeDecl>(LookupSingleName(*Interp, "A"));