Revert r336653 "[VPlan] Add VPlanTestBase.h with helper class to build VPlan for tests."

Memory leaks in tests.
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap/builds/6289/steps/check-llvm%20asan/logs/stdio

Direct leak of 192 byte(s) in 1 object(s) allocated from:
    #0 0x554ea8 in operator new(unsigned long) /b/sanitizer-x86_64-linux-bootstrap/build/llvm/projects/compiler-rt/lib/asan/asan_new_delete.cc:106
    #1 0x56cef1 in llvm::VPlanTestBase::doAnalysis(llvm::Function&) /b/sanitizer-x86_64-linux-bootstrap/build/llvm/unittests/Transforms/Vectorize/VPlanTestBase.h:53:14
    #2 0x56bec4 in llvm::VPlanTestBase::buildHCFG(llvm::BasicBlock*) /b/sanitizer-x86_64-linux-bootstrap/build/llvm/unittests/Transforms/Vectorize/VPlanTestBase.h:57:3
    #3 0x571f1e in llvm::(anonymous namespace)::VPlanHCFGTest_testVPInstructionToVPRecipesInner_Test::TestBody() /b/sanitizer-x86_64-linux-bootstrap/build/llvm/unittests/Transforms/Vectorize/VPlanHCFGTest.cpp:119:15
    #4 0xed2291 in testing::Test::Run() /b/sanitizer-x86_64-linux-bootstrap/build/llvm/utils/unittest/googletest/src/gtest.cc
    #5 0xed44c8 in testing::TestInfo::Run() /b/sanitizer-x86_64-linux-bootstrap/build/llvm/utils/unittest/googletest/src/gtest.cc:2656:11
    #6 0xed5890 in testing::TestCase::Run() /b/sanitizer-x86_64-linux-bootstrap/build/llvm/utils/unittest/googletest/src/gtest.cc:2774:28
    #7 0xef3634 in testing::internal::UnitTestImpl::RunAllTests() /b/sanitizer-x86_64-linux-bootstrap/build/llvm/utils/unittest/googletest/src/gtest.cc:4649:43
    #8 0xef27e0 in testing::UnitTest::Run() /b/sanitizer-x86_64-linux-bootstrap/build/llvm/utils/unittest/googletest/src/gtest.cc
    #9 0xebbc23 in RUN_ALL_TESTS /b/sanitizer-x86_64-linux-bootstrap/build/llvm/utils/unittest/googletest/include/gtest/gtest.h:2233:46
    #10 0xebbc23 in main /b/sanitizer-x86_64-linux-bootstrap/build/llvm/utils/unittest/UnitTestMain/TestMain.cpp:51
    #11 0x7f65569592e0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202e0)

and more.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@336718 91177308-0d34-0410-b5e6-96231b3b80d8

Author: eugenis

unittests/Transforms/Vectorize/VPlanHCFGTest.cpp

@@ -8,16 +8,35 @@
 //===----------------------------------------------------------------------===//
 
 #include "../lib/Transforms/Vectorize/VPlan.h"
+#include "../lib/Transforms/Vectorize/VPlanHCFGBuilder.h"
 #include "../lib/Transforms/Vectorize/VPlanHCFGTransforms.h"
-#include "VPlanTestBase.h"
+#include "llvm/AsmParser/Parser.h"
+#include "llvm/IR/Dominators.h"
 #include "gtest/gtest.h"
 
 namespace llvm {
 namespace {
 
-class VPlanHCFGTest : public VPlanTestBase {};
+class VPlanHCFGTest : public testing::Test {
+protected:
+  std::unique_ptr<DominatorTree> DT;
+  std::unique_ptr<LoopInfo> LI;
+
+  VPlanHCFGTest() {}
+
+  VPlanPtr doBuildPlan(BasicBlock *LoopHeader) {
+    DT.reset(new DominatorTree(*LoopHeader->getParent()));
+    LI.reset(new LoopInfo(*DT));
+
+    auto Plan = llvm::make_unique<VPlan>();
+    VPlanHCFGBuilder HCFGBuilder(LI->getLoopFor(LoopHeader), LI.get());
+    HCFGBuilder.buildHierarchicalCFG(*Plan.get());
+    return Plan;
+  }
+};
 
 TEST_F(VPlanHCFGTest, testBuildHCFGInnerLoop) {
+  LLVMContext Ctx;
   const char *ModuleString =
       "define void @f(i32* %A, i64 %N) {\n"
       "entry:\n"
@@ -35,11 +54,12 @@ TEST_F(VPlanHCFGTest, testBuildHCFGInnerLoop) {
       "  ret void\n"
       "}\n";
 
-  Module &M = parseModule(ModuleString);
+  SMDiagnostic Err;
+  std::unique_ptr<Module> M = parseAssemblyString(ModuleString, Err, Ctx);
 
-  Function *F = M.getFunction("f");
+  Function *F = M->getFunction("f");
   BasicBlock *LoopHeader = F->getEntryBlock().getSingleSuccessor();
-  auto Plan = buildHCFG(LoopHeader);
+  auto Plan = doBuildPlan(LoopHeader);
 
   VPBasicBlock *Entry = Plan->getEntry()->getEntryBasicBlock();
   EXPECT_NE(nullptr, Entry->getSingleSuccessor());
@@ -95,6 +115,7 @@ TEST_F(VPlanHCFGTest, testBuildHCFGInnerLoop) {
 }
 
 TEST_F(VPlanHCFGTest, testVPInstructionToVPRecipesInner) {
+  LLVMContext Ctx;
   const char *ModuleString =
       "define void @f(i32* %A, i64 %N) {\n"
       "entry:\n"
@@ -112,11 +133,12 @@ TEST_F(VPlanHCFGTest, testVPInstructionToVPRecipesInner) {
       "  ret void\n"
       "}\n";
 
-  Module &M = parseModule(ModuleString);
+  SMDiagnostic Err;
+  std::unique_ptr<Module> M = parseAssemblyString(ModuleString, Err, Ctx);
 
-  Function *F = M.getFunction("f");
+  Function *F = M->getFunction("f");
   BasicBlock *LoopHeader = F->getEntryBlock().getSingleSuccessor();
-  auto Plan = buildHCFG(LoopHeader);
+  auto Plan = doBuildPlan(LoopHeader);
 
   LoopVectorizationLegality::InductionList Inductions;
   SmallPtrSet<Instruction *, 1> DeadInstructions;